SEC Info℠  
    Home      Search      My Interests      Help      Sign In      Please Sign In

PPL Corp., et al. – ‘10-Q’ for 3/31/21 – ‘EX-101.DEF’

On:  Thursday, 5/6/21, at 12:18pm ET   ·   For:  3/31/21   ·   Accession #:  922224-21-21   ·   File #s:  1-00905, 1-02893, 1-03464, 1-11459, 333-173665

Previous ‘10-Q’:  ‘10-Q’ on 11/5/20 for 9/30/20   ·   Next:  ‘10-Q’ on 8/5/21 for 6/30/21   ·   Latest:  ‘10-Q’ on 5/1/24 for 3/31/24   ·   7 References:   

Find Words in Filings emoji
 		  in    Show  and   ↓Hints

  As Of               Filer                 Filing    For·On·As Docs:Size

 5/06/21  PPL Corp.                         10-Q        3/31/21  106:25M
          Louisville Gas & Electric Co./KY
          LG&E & KU Energy LLC
          Kentucky Utilities Co.
          PPL Electric Utilities Corp.

Quarterly Report   —   Form 10-Q

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   2.65M 
 2: EX-2.B2     Plan of Acquisition, Reorganization, Arrangement,   HTML     31K 
                Liquidation or Succession                                        
 3: EX-10.B1    Material Contract                                   HTML     32K 
 4: EX-10.B2    Material Contract                                   HTML     32K 
 5: EX-10.C     Material Contract                                   HTML     32K 
 6: EX-10.D     Material Contract                                   HTML     33K 
 7: EX-31.A     Certification -- §302 - SOA'02                      HTML     32K 
 8: EX-31.B     Certification -- §302 - SOA'02                      HTML     32K 
 9: EX-31.C     Certification -- §302 - SOA'02                      HTML     32K 
10: EX-31.D     Certification -- §302 - SOA'02                      HTML     32K 
11: EX-31.E     Certification -- §302 - SOA'02                      HTML     32K 
12: EX-31.F     Certification -- §302 - SOA'02                      HTML     32K 
13: EX-31.G     Certification -- §302 - SOA'02                      HTML     32K 
14: EX-31.H     Certification -- §302 - SOA'02                      HTML     32K 
15: EX-31.I     Certification -- §302 - SOA'02                      HTML     32K 
16: EX-31.J     Certification -- §302 - SOA'02                      HTML     32K 
17: EX-32.A     Certification -- §906 - SOA'02                      HTML     31K 
18: EX-32.B     Certification -- §906 - SOA'02                      HTML     31K 
19: EX-32.C     Certification -- §906 - SOA'02                      HTML     31K 
20: EX-32.D     Certification -- §906 - SOA'02                      HTML     31K 
21: EX-32.E     Certification -- §906 - SOA'02                      HTML     31K 
28: R1          Document and Entity Information                     HTML    121K 
29: R2          Condensed Consolidated Statements of Income         HTML    137K 
                (Unaudited)                                                      
30: R3          Condensed Consolidated Statements of Comprehensive  HTML     67K 
                Income (Unaudited)                                               
31: R4          Condensed Consolidated Statements of Comprehensive  HTML     39K 
                Income (Unaudited) (Parenthetical)                               
32: R5          Condensed Consolidated Statements of Cash Flows     HTML    247K 
                (Unaudited)                                                      
33: R6          Condensed Consolidated Balance Sheets (Unaudited)   HTML    293K 
34: R7          Condensed Consolidated Balance Sheets (Unaudited)   HTML     61K 
                (Parenthetical)                                                  
35: R8          Condensed Consolidated Statements of Equity         HTML    123K 
                (Unaudited)                                                      
36: R9          Condensed Consolidated Statements of Equity         HTML     28K 
                (Unaudited) (Parenthetical)                                      
37: R10         Segment and Related Information                     HTML     62K 
38: R11         Earnings Per Share                                  HTML     62K 
39: R12         Income Taxes                                        HTML    102K 
40: R13         Utility Rate Regulation                             HTML    220K 
41: R14         Financing Activities                                HTML    110K 
42: R15         Defined Benefits                                    HTML    106K 
43: R16         Commitments and Contingencies                       HTML     84K 
44: R17         Related Party Transactions                          HTML    109K 
45: R18         Fair Value Measurements                             HTML    206K 
46: R19         Derivative Instruments and Hedging Activities       HTML    263K 
47: R20         Asset Retirement Obligations                        HTML     92K 
48: R21         Accumulated Other Comprehensive Income (Loss)       HTML    113K 
49: R22         Acquisitions, Development and Divestitures          HTML     76K 
                (Tables)                                                         
50: R23         Interim Financial Statements                        HTML     34K 
51: R24         Summary of Significant Accounting Policies          HTML     68K 
52: R25         Revenue from Contracts with Customers               HTML    151K 
53: R26         Acquisitions, Development and Divestitures          HTML     81K 
54: R27         Other Income (Expense) - net                        HTML     49K 
55: R28         Derivative Instruments and Hedging Activities       HTML     30K 
                (Policies)                                                       
56: R29         Adoption of Accounting Guidance (Tables)            HTML     69K 
57: R30         Segment and Related Information (Tables)            HTML     57K 
58: R31         Revenue from Contracts with Customers (Tables)      HTML    152K 
59: R32         Earnings Per Share (Tables)                         HTML     65K 
60: R33         Income Taxes (Tables)                               HTML    107K 
61: R34         Utility Rate Regulation (Tables)                    HTML    203K 
62: R35         Financing Activities (Tables)                       HTML    106K 
63: R36         Defined Benefits (Tables)                           HTML    144K 
64: R37         Commitments and Contingencies (Tables)              HTML     45K 
65: R38         Related Party Transactions (Tables)                 HTML     70K 
66: R39         Other Income (Expense) - net (Tables)               HTML     51K 
67: R40         Fair Value Measurements (Tables)                    HTML    201K 
68: R41         Derivative Instruments and Hedging Activities       HTML    377K 
                (Tables)                                                         
69: R42         Asset Retirement Obligations (Tables)               HTML     86K 
70: R43         Accumulated Other Comprehensive Income (Loss)       HTML    115K 
                (Tables)                                                         
71: R44         Summary of Significant Accounting Policies          HTML     83K 
                (Details)                                                        
72: R45         Segment and Related Information (Details)           HTML     96K 
73: R46         Revenue from Contracts with Customers (Details)     HTML    157K 
74: R47         Earnings Per Share (Details)                        HTML     78K 
75: R48         Income Taxes (Details)                              HTML     67K 
76: R49         Utility Rate Regulation - Regulatory Assets         HTML    111K 
                (Details)                                                        
77: R50         Utility Rate Regulation - Regulatory Liabilities    HTML    314K 
                (Details)                                                        
78: R51         Utility Rate Regulation - Regulatory Matters        HTML    183K 
                (Details)                                                        
79: R52         Utility Rate Regulation - Other (Details)           HTML     34K 
80: R53         Financing Activities - Credit Arrangements          HTML     82K 
                (Details)                                                        
81: R54         Financing Activities - Short-term Debt (Details)    HTML     64K 
82: R55         Financing Activities - Long-term Debt (Details)     HTML     68K 
83: R56         Financing Activities - Equity Securities (Details)  HTML     34K 
84: R57         Financing Activities - Distributions (Details)      HTML     32K 
85: R58         Acquisitions, Development and Divestitures -        HTML    152K 
                Discontinued Operations (Details)                                
86: R59         Acquisitions, Development and Divestitures -        HTML     31K 
                Development (Details)                                            
87: R60         Defined Benefits (Details)                          HTML     81K 
88: R61         Commitments and Contingencies - Legal Matters and   HTML     65K 
                Regulatory Issues (Details)                                      
89: R62         Commitments and Contingencies - Environmental       HTML     35K 
                Matters and Other (Details)                                      
90: R63         Commitments and Contingencies - Guarantees and      HTML     74K 
                Other Assurances (Details)                                       
91: R64         Related Party Transactions (Details)                HTML     86K 
92: R65         Other Income (Expense) - net (Details)              HTML     47K 
93: R66         Fair Value Measurements - Assets and Liabilities    HTML    105K 
                Measured on Recurring Basis Table (Details)                      
94: R67         Fair Value Measurements - Financial Instruments     HTML     47K 
                Not Recorded at Fair Value (Details)                             
95: R68         Derivative Instruments and Hedging Activities -     HTML     40K 
                Intro (Details)                                                  
96: R69         Derivative Instruments and Hedging Activities -     HTML     62K 
                Risk Disclosures (Details)                                       
97: R70         Derivative Instruments and Hedging Activities -     HTML    110K 
                Fair Values (Details)                                            
98: R71         Derivative Instruments and Hedging Activities -     HTML    102K 
                Gains and Losses (Details)                                       
99: R72         Derivative Instruments and Hedging Activities -     HTML     75K 
                Offsetting Derivative Instruments and Credit                     
                Risk-Related Features (Details)                                  
100: R73         Asset Retirement Obligations (Details)              HTML     43K  
101: R74         Accumulated Other Comprehensive Income (Loss) -     HTML     65K  
                After-tax Changes by Component (Details)                         
102: R75         Accumulated Other Comprehensive Income (Loss) -     HTML     69K  
                Income (Expense) Effect of Reclassifications                     
                (Details)                                                        
104: XML         IDEA XML File -- Filing Summary                      XML    170K  
27: XML         XBRL Instance -- ppl-20210331_htm                    XML   7.20M 
103: EXCEL       IDEA Workbook of Financial Reports                  XLSX    162K  
23: EX-101.CAL  XBRL Calculations -- ppl-20210331_cal                XML    377K 
24: EX-101.DEF  XBRL Definitions -- ppl-20210331_def                 XML   1.94M 
25: EX-101.LAB  XBRL Labels -- ppl-20210331_lab                      XML   2.96M 
26: EX-101.PRE  XBRL Presentations -- ppl-20210331_pre               XML   2.05M 
22: EX-101.SCH  XBRL Schema -- ppl-20210331                          XSD    370K 
105: JSON        XBRL Instance as JSON Data -- MetaLinks              599±   919K  
106: ZIP         XBRL Zipped Folder -- 0000922224-21-000021-xbrl      Zip    737K

‘EX-101.DEF’   —   XBRL Definitions — ppl-20210331_def

This Exhibit is an XBRL XML File.

                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<!-- XBRL Document Created with Wdesk from Workiva -->
<!-- Copyright 2021 Workiva -->
<!-- r:c4903e61-bad9-4841-8aba-1af82d10aa06,g:39463949-8914-4cc1-8def-6affc2200ef5 -->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/DocumentandEntityInformation" xlink:type="simple" xlink:href="ppl-20210331.xsd#DocumentandEntityInformation"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DocumentandEntityInformation" xlink:type="extended" id="i3aa7c1ea3b864416b5ce7d1d52749a1d_DocumentandEntityInformation">
<link:loc xlink:type="locator" xlink:label="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:href="ppl-20210331.xsd#ppl_DocumentEntityInformationLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_1693f04b-7fa6-4633-8f7d-8fef0db8cab4" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_Security12bTitle"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_Security12bTitle_1693f04b-7fa6-4633-8f7d-8fef0db8cab4" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_59936a23-4c49-4e8c-b794-fc6eff873d17" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityShellCompany"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityShellCompany_59936a23-4c49-4e8c-b794-fc6eff873d17" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_53c20c12-792c-4236-ad9a-e1c50dbc0249" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityInteractiveDataCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityInteractiveDataCurrent_53c20c12-792c-4236-ad9a-e1c50dbc0249" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_22b370ae-4a54-47f9-bc83-d3d70b0cf4a4" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFileNumber"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityFileNumber_22b370ae-4a54-47f9-bc83-d3d70b0cf4a4" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_2463b29d-c426-400f-93c8-8d2108ae7a9e" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityIncorporationStateCountryCode"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityIncorporationStateCountryCode_2463b29d-c426-400f-93c8-8d2108ae7a9e" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EntityIncorporationStateCountryCode1_c6a0faaf-6e40-47cd-95ad-ac340508439d" xlink:href="ppl-20210331.xsd#ppl_EntityIncorporationStateCountryCode1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_ppl_EntityIncorporationStateCountryCode1_c6a0faaf-6e40-47cd-95ad-ac340508439d" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_094cfcad-7fec-4fa3-b368-7b18a92955f1" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressAddressLine1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityAddressAddressLine1_094cfcad-7fec-4fa3-b368-7b18a92955f1" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_a098e499-9a17-4010-ac76-722829523c80" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressCityOrTown"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityAddressCityOrTown_a098e499-9a17-4010-ac76-722829523c80" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_9eb59435-15ce-4e20-80a6-424a3b18aee0" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressStateOrProvince"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityAddressStateOrProvince_9eb59435-15ce-4e20-80a6-424a3b18aee0" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_e456f624-5e27-438b-b246-1e8329ef63f4" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressPostalZipCode"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityAddressPostalZipCode_e456f624-5e27-438b-b246-1e8329ef63f4" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_388b4f6b-6c3e-4147-ba6c-34e6ef2419f0" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CityAreaCode"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_CityAreaCode_388b4f6b-6c3e-4147-ba6c-34e6ef2419f0" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_9054f7ce-a727-4359-bc4b-94258e1654c9" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LocalPhoneNumber"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_LocalPhoneNumber_9054f7ce-a727-4359-bc4b-94258e1654c9" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_2d1c1cdc-532a-4eb2-8e8f-3285edac8ea9" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentType"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_DocumentType_2d1c1cdc-532a-4eb2-8e8f-3285edac8ea9" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_bb8feb36-b5ce-4371-987f-19a2514185b9" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentPeriodEndDate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_DocumentPeriodEndDate_bb8feb36-b5ce-4371-987f-19a2514185b9" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_457db14a-06bc-45ae-b862-cf8e6ab2fc3a" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_AmendmentFlag"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_AmendmentFlag_457db14a-06bc-45ae-b862-cf8e6ab2fc3a" xlink:type="arc" order="14"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_f51f1372-d36c-4c50-9327-01d96d56575f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityRegistrantName"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityRegistrantName_f51f1372-d36c-4c50-9327-01d96d56575f" xlink:type="arc" order="15"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_dd18bda7-a853-4673-8aa9-a466878cef32" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityTaxIdentificationNumber"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityTaxIdentificationNumber_dd18bda7-a853-4673-8aa9-a466878cef32" xlink:type="arc" order="16"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_aefd8fed-ef9d-4397-819c-a493fd174907" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCentralIndexKey"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityCentralIndexKey_aefd8fed-ef9d-4397-819c-a493fd174907" xlink:type="arc" order="17"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_a4d08fc7-68b6-4343-b7bb-3ac561f2d5f8" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CurrentFiscalYearEndDate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_CurrentFiscalYearEndDate_a4d08fc7-68b6-4343-b7bb-3ac561f2d5f8" xlink:type="arc" order="18"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_b125ee7b-a340-4a20-b5ae-78d87baf0f7c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCurrentReportingStatus"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityCurrentReportingStatus_b125ee7b-a340-4a20-b5ae-78d87baf0f7c" xlink:type="arc" order="19"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_1cc1a9d5-fdae-4fc5-ad45-879a75ce8dcb" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFilerCategory"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityFilerCategory_1cc1a9d5-fdae-4fc5-ad45-879a75ce8dcb" xlink:type="arc" order="20"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_2bde5d94-bff5-4897-b047-333c5d7377e9" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityEmergingGrowthCompany"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityEmergingGrowthCompany_2bde5d94-bff5-4897-b047-333c5d7377e9" xlink:type="arc" order="21"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_9859d1d1-abd1-4853-bc04-f04a09576f8b" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntitySmallBusiness"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntitySmallBusiness_9859d1d1-abd1-4853-bc04-f04a09576f8b" xlink:type="arc" order="22"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_3e019489-14d9-4a91-b7f0-e5d12d0d1a7f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCommonStockSharesOutstanding"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_3e019489-14d9-4a91-b7f0-e5d12d0d1a7f" xlink:type="arc" order="23"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_d383b216-be23-47b1-a73f-2a8de3683b78" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentFiscalYearFocus"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_DocumentFiscalYearFocus_d383b216-be23-47b1-a73f-2a8de3683b78" xlink:type="arc" order="24"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_ff567149-7437-415d-a2a6-788cf289a18e" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentFiscalPeriodFocus"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_DocumentFiscalPeriodFocus_ff567149-7437-415d-a2a6-788cf289a18e" xlink:type="arc" order="25"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_ed0c00d1-8e41-412e-aaa2-be0864b4259d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentQuarterlyReport"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_DocumentQuarterlyReport_ed0c00d1-8e41-412e-aaa2-be0864b4259d" xlink:type="arc" order="26"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_c6dd666c-7e84-4aee-9e0f-4ba49934389c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentTransitionReport"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_DocumentTransitionReport_c6dd666c-7e84-4aee-9e0f-4ba49934389c" xlink:type="arc" order="27"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_026dc2be-cefc-40cb-a46a-449239fdb820" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_TradingSymbol"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_TradingSymbol_026dc2be-cefc-40cb-a46a-449239fdb820" xlink:type="arc" order="28"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_61b8941a-3372-4c3a-b454-36a642487683" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SecurityExchangeName"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_dei_SecurityExchangeName_61b8941a-3372-4c3a-b454-36a642487683" xlink:type="arc" order="29"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DocumentEntityTable_15f50724-74dc-4703-a3e2-61eaea375bd6" xlink:href="ppl-20210331.xsd#ppl_DocumentEntityTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_DocumentEntityInformationLineItems_cc790c1b-c192-4407-81ad-02bb33968850" xlink:to="loc_ppl_DocumentEntityTable_15f50724-74dc-4703-a3e2-61eaea375bd6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_41ae4f0f-0c3c-401d-ad69-da1f32b3d91c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DocumentEntityTable_15f50724-74dc-4703-a3e2-61eaea375bd6" xlink:to="loc_dei_LegalEntityAxis_41ae4f0f-0c3c-401d-ad69-da1f32b3d91c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_41ae4f0f-0c3c-401d-ad69-da1f32b3d91c_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_41ae4f0f-0c3c-401d-ad69-da1f32b3d91c" xlink:to="loc_dei_EntityDomain_41ae4f0f-0c3c-401d-ad69-da1f32b3d91c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_dc41b57d-5768-4dce-b434-c0d07253883d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_41ae4f0f-0c3c-401d-ad69-da1f32b3d91c" xlink:to="loc_dei_EntityDomain_dc41b57d-5768-4dce-b434-c0d07253883d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_d87f13cb-a43a-4520-b6bc-47c29acafac4" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dc41b57d-5768-4dce-b434-c0d07253883d" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_d87f13cb-a43a-4520-b6bc-47c29acafac4" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_8266895f-2a23-4b90-9f5a-0c878b9a5cc0" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dc41b57d-5768-4dce-b434-c0d07253883d" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_8266895f-2a23-4b90-9f5a-0c878b9a5cc0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_2b302c48-5b94-4162-a307-4126bd79e9bd" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dc41b57d-5768-4dce-b434-c0d07253883d" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_2b302c48-5b94-4162-a307-4126bd79e9bd" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_5182740e-c365-40fa-b7c5-b0237537c0f4" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dc41b57d-5768-4dce-b434-c0d07253883d" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_5182740e-c365-40fa-b7c5-b0237537c0f4" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_573eca45-93e4-4ce2-8739-3d8824b1fd6d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementClassOfStockAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DocumentEntityTable_15f50724-74dc-4703-a3e2-61eaea375bd6" xlink:to="loc_us-gaap_StatementClassOfStockAxis_573eca45-93e4-4ce2-8739-3d8824b1fd6d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_573eca45-93e4-4ce2-8739-3d8824b1fd6d_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ClassOfStockDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_573eca45-93e4-4ce2-8739-3d8824b1fd6d" xlink:to="loc_us-gaap_ClassOfStockDomain_573eca45-93e4-4ce2-8739-3d8824b1fd6d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_91ac8510-0c06-4500-a90c-89714a1c3552" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ClassOfStockDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_573eca45-93e4-4ce2-8739-3d8824b1fd6d" xlink:to="loc_us-gaap_ClassOfStockDomain_91ac8510-0c06-4500-a90c-89714a1c3552" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_a6c0dde1-7c0e-47bb-a998-d28d5438ed32" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_91ac8510-0c06-4500-a90c-89714a1c3552" xlink:to="loc_us-gaap_CommonStockMember_a6c0dde1-7c0e-47bb-a998-d28d5438ed32" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_A2013SeriesBDue2073Member_4279795b-d4c2-4e40-8a99-bd01528ed79a" xlink:href="ppl-20210331.xsd#ppl_A2013SeriesBDue2073Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_91ac8510-0c06-4500-a90c-89714a1c3552" xlink:to="loc_ppl_A2013SeriesBDue2073Member_4279795b-d4c2-4e40-8a99-bd01528ed79a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_A2007SeriesADue2067Member_f3eddbb7-88f6-4a65-a2f2-33b71934e875" xlink:href="ppl-20210331.xsd#ppl_A2007SeriesADue2067Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_91ac8510-0c06-4500-a90c-89714a1c3552" xlink:to="loc_ppl_A2007SeriesADue2067Member_f3eddbb7-88f6-4a65-a2f2-33b71934e875" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOMEUnaudited" xlink:type="simple" xlink:href="ppl-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOMEUnaudited" xlink:type="extended" id="i11bd5e7009a64e8297e12381944cfefb_CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOMEUnaudited">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_abe6c974-4d36-4696-aaa3-ece6f6d7e458" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenuesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_RevenuesAbstract_abe6c974-4d36-4696-aaa3-ece6f6d7e458" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatedOperatingRevenue_88c61bd5-c3df-4b09-96d3-425cb7a9c313" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatedOperatingRevenue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_abe6c974-4d36-4696-aaa3-ece6f6d7e458" xlink:to="loc_us-gaap_RegulatedOperatingRevenue_88c61bd5-c3df-4b09-96d3-425cb7a9c313" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromRelatedParties_dea10f37-3c3e-4c15-8c3c-89c6b6cfed5e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromRelatedParties"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_abe6c974-4d36-4696-aaa3-ece6f6d7e458" xlink:to="loc_us-gaap_RevenueFromRelatedParties_dea10f37-3c3e-4c15-8c3c-89c6b6cfed5e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_aba33e88-8938-44bd-8818-5f41c60bbf6b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Revenues"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_abe6c974-4d36-4696-aaa3-ece6f6d7e458" xlink:to="loc_us-gaap_Revenues_aba33e88-8938-44bd-8818-5f41c60bbf6b" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_3556929f-e604-42d2-956c-7ccf8b5503fd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingExpensesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_OperatingExpensesAbstract_3556929f-e604-42d2-956c-7ccf8b5503fd" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseAbstract_06e75135-f538-4fac-959a-36a9b1f0be43" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UtilitiesOperatingExpenseAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3556929f-e604-42d2-956c-7ccf8b5503fd" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseAbstract_06e75135-f538-4fac-959a-36a9b1f0be43" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FuelCosts_2bacc774-f5b4-4829-8f62-2249790c68fe" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FuelCosts"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseAbstract_06e75135-f538-4fac-959a-36a9b1f0be43" xlink:to="loc_us-gaap_FuelCosts_2bacc774-f5b4-4829-8f62-2249790c68fe" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PurchasedPowerAndGas_685e224e-47ab-41cd-9e8e-4ba419b265ca" xlink:href="ppl-20210331.xsd#ppl_PurchasedPowerAndGas"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseAbstract_06e75135-f538-4fac-959a-36a9b1f0be43" xlink:to="loc_ppl_PurchasedPowerAndGas_685e224e-47ab-41cd-9e8e-4ba419b265ca" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UtilitiesOperatingExpensePurchasedPowerFromRelatedParties_7d044c9e-b184-4cef-9591-1a2b2b79480b" xlink:href="ppl-20210331.xsd#ppl_UtilitiesOperatingExpensePurchasedPowerFromRelatedParties"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseAbstract_06e75135-f538-4fac-959a-36a9b1f0be43" xlink:to="loc_ppl_UtilitiesOperatingExpensePurchasedPowerFromRelatedParties_7d044c9e-b184-4cef-9591-1a2b2b79480b" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_0f949cac-da09-452e-b766-f1378a49be7c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseAbstract_06e75135-f538-4fac-959a-36a9b1f0be43" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_0f949cac-da09-452e-b766-f1378a49be7c" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_d5f4ed48-2f3f-4bec-8942-b7e7e2ee1bd3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3556929f-e604-42d2-956c-7ccf8b5503fd" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_d5f4ed48-2f3f-4bec-8942-b7e7e2ee1bd3" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseTaxes_1897b02f-8c7b-49ac-a36a-dd7b467a7df5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UtilitiesOperatingExpenseTaxes"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3556929f-e604-42d2-956c-7ccf8b5503fd" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseTaxes_1897b02f-8c7b-49ac-a36a-dd7b467a7df5" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilitiesOperatingExpense_9bd34c5d-458e-491c-9568-750409de13e5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UtilitiesOperatingExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3556929f-e604-42d2-956c-7ccf8b5503fd" xlink:to="loc_us-gaap_UtilitiesOperatingExpense_9bd34c5d-458e-491c-9568-750409de13e5" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_2046ad9b-8bae-42da-97de-b1889f29b9c4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_OperatingIncomeLoss_2046ad9b-8bae-42da-97de-b1889f29b9c4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_5b756816-94dc-4573-8452-1efb5506dac8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_5b756816-94dc-4573-8452-1efb5506dac8" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeRelatedParty_38c2af26-94df-4b75-8e80-bb68670d9739" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeRelatedParty"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_InterestIncomeRelatedParty_38c2af26-94df-4b75-8e80-bb68670d9739" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_45790922-f70f-4e99-acf8-9b152127c5a5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_InterestExpense_45790922-f70f-4e99-acf8-9b152127c5a5" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseRelatedParty_97bd617c-6cf0-456d-a6f1-a15d28efeb82" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseRelatedParty"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_InterestExpenseRelatedParty_97bd617c-6cf0-456d-a6f1-a15d28efeb82" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_65966bb8-3ad5-40be-b5e9-9d3c0e721c8c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_65966bb8-3ad5-40be-b5e9-9d3c0e721c8c" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_c22b618d-c574-42dc-a990-e29c0cec4d3d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_c22b618d-c574-42dc-a990-e29c0cec4d3d" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_0867a69c-f0f8-45b2-9ad5-c8ee63d5c074" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_0867a69c-f0f8-45b2-9ad5-c8ee63d5c074" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_df0bf47b-06d8-4da7-baca-089a84a972b0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_df0bf47b-06d8-4da7-baca-089a84a972b0" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_00c51af5-e532-43b3-815a-ad5a275d91d2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_NetIncomeLoss_00c51af5-e532-43b3-815a-ad5a275d91d2" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_ca426892-6ebd-46d8-b6b8-d6b58a6f3b7e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_EarningsPerShareAbstract_ca426892-6ebd-46d8-b6b8-d6b58a6f3b7e" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract_02ee51d9-9b53-4358-a8db-b1db50af4c47" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_ca426892-6ebd-46d8-b6b8-d6b58a6f3b7e" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract_02ee51d9-9b53-4358-a8db-b1db50af4c47" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_268e62e5-939b-4494-a94f-098a82284c53" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareDiluted"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract_02ee51d9-9b53-4358-a8db-b1db50af4c47" xlink:to="loc_us-gaap_EarningsPerShareDiluted_268e62e5-939b-4494-a94f-098a82284c53" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare_8ba11453-781e-4111-ba42-e141a3752a06" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDiluted_268e62e5-939b-4494-a94f-098a82284c53" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare_8ba11453-781e-4111-ba42-e141a3752a06" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare_663dd147-f0a2-42e2-a730-6af2548da0ab" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDiluted_268e62e5-939b-4494-a94f-098a82284c53" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare_663dd147-f0a2-42e2-a730-6af2548da0ab" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted_68b3efc4-233d-40a3-8227-6c6fef5f103a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDiluted_268e62e5-939b-4494-a94f-098a82284c53" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_68b3efc4-233d-40a3-8227-6c6fef5f103a" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_933aa13c-db05-4fe0-aa0d-555d7e24db16" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_933aa13c-db05-4fe0-aa0d-555d7e24db16" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_f80cb02c-01cf-4412-8388-6d153b66e772" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_933aa13c-db05-4fe0-aa0d-555d7e24db16" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_f80cb02c-01cf-4412-8388-6d153b66e772" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2f32cfb7-e202-48b2-9907-4d68e309d030" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_933aa13c-db05-4fe0-aa0d-555d7e24db16" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2f32cfb7-e202-48b2-9907-4d68e309d030" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_77e953f6-1bb3-457f-8e70-608ac7b34836" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_f1101387-c13f-4b01-9aa9-f610aa8c4ac4" xlink:to="loc_us-gaap_StatementTable_77e953f6-1bb3-457f-8e70-608ac7b34836" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_a744f41e-8571-4efa-baa1-0e555228aa1e" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_77e953f6-1bb3-457f-8e70-608ac7b34836" xlink:to="loc_dei_LegalEntityAxis_a744f41e-8571-4efa-baa1-0e555228aa1e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_a744f41e-8571-4efa-baa1-0e555228aa1e_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_a744f41e-8571-4efa-baa1-0e555228aa1e" xlink:to="loc_dei_EntityDomain_a744f41e-8571-4efa-baa1-0e555228aa1e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_662a12f1-41a2-43cb-88db-d20a7efb7b9f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_a744f41e-8571-4efa-baa1-0e555228aa1e" xlink:to="loc_dei_EntityDomain_662a12f1-41a2-43cb-88db-d20a7efb7b9f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_ea761f62-50ac-472a-ac2f-3470a363897d" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_662a12f1-41a2-43cb-88db-d20a7efb7b9f" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_ea761f62-50ac-472a-ac2f-3470a363897d" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_e2405c8c-ee64-49e5-b280-8367c5565143" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_662a12f1-41a2-43cb-88db-d20a7efb7b9f" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_e2405c8c-ee64-49e5-b280-8367c5565143" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_20fe295b-a0c4-4e39-95ce-493d859e0826" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_662a12f1-41a2-43cb-88db-d20a7efb7b9f" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_20fe295b-a0c4-4e39-95ce-493d859e0826" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_ffad92ff-d4c4-46b0-840e-eb8fc8d338ad" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_662a12f1-41a2-43cb-88db-d20a7efb7b9f" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_ffad92ff-d4c4-46b0-840e-eb8fc8d338ad" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_38d048f2-3d88-44c3-b2ea-5ed857988214" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_77e953f6-1bb3-457f-8e70-608ac7b34836" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_38d048f2-3d88-44c3-b2ea-5ed857988214" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_38d048f2-3d88-44c3-b2ea-5ed857988214_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_38d048f2-3d88-44c3-b2ea-5ed857988214" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_38d048f2-3d88-44c3-b2ea-5ed857988214_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_f1e98420-9422-48a4-8181-6d12f392749a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_38d048f2-3d88-44c3-b2ea-5ed857988214" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_f1e98420-9422-48a4-8181-6d12f392749a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_65ec66c4-1a27-4250-96e7-fbb3b969dc95" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ForeignExchangeContractMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_f1e98420-9422-48a4-8181-6d12f392749a" xlink:to="loc_us-gaap_ForeignExchangeContractMember_65ec66c4-1a27-4250-96e7-fbb3b969dc95" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_b2602b7f-ffcd-4896-adb8-2ba33f0c43aa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_77e953f6-1bb3-457f-8e70-608ac7b34836" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_b2602b7f-ffcd-4896-adb8-2ba33f0c43aa" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_b2602b7f-ffcd-4896-adb8-2ba33f0c43aa_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingRelationshipDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_b2602b7f-ffcd-4896-adb8-2ba33f0c43aa" xlink:to="loc_us-gaap_HedgingRelationshipDomain_b2602b7f-ffcd-4896-adb8-2ba33f0c43aa_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_2bb6428b-1320-4ed5-9e63-35dbbe501592" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingRelationshipDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_b2602b7f-ffcd-4896-adb8-2ba33f0c43aa" xlink:to="loc_us-gaap_HedgingRelationshipDomain_2bb6428b-1320-4ed5-9e63-35dbbe501592" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EconomicHedgesMember_c37d588f-2c93-475e-ad1d-fa2a8d1fcb69" xlink:href="ppl-20210331.xsd#ppl_EconomicHedgesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_2bb6428b-1320-4ed5-9e63-35dbbe501592" xlink:to="loc_ppl_EconomicHedgesMember_c37d588f-2c93-475e-ad1d-fa2a8d1fcb69" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited" xlink:type="simple" xlink:href="ppl-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited" xlink:type="extended" id="i43bcb16d063c4e1dad8611bfd3eaf3ab_CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_715069ea-7d4f-451e-89dd-bfcf3b9b9edd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_1b2124a3-4b6d-452e-bca5-f733839833cc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_715069ea-7d4f-451e-89dd-bfcf3b9b9edd" xlink:to="loc_us-gaap_NetIncomeLoss_1b2124a3-4b6d-452e-bca5-f733839833cc" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_5072f439-feb3-4ffe-a92e-93dce388c39a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_715069ea-7d4f-451e-89dd-bfcf3b9b9edd" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_5072f439-feb3-4ffe-a92e-93dce388c39a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AmountsArisingDuringPeriodGainsLossesNetOfTaxExpenseBenefitAbstract_f3f02cda-c813-40de-8b22-459cc7695b23" xlink:href="ppl-20210331.xsd#ppl_AmountsArisingDuringPeriodGainsLossesNetOfTaxExpenseBenefitAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_5072f439-feb3-4ffe-a92e-93dce388c39a" xlink:to="loc_ppl_AmountsArisingDuringPeriodGainsLossesNetOfTaxExpenseBenefitAbstract_f3f02cda-c813-40de-8b22-459cc7695b23" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_e2f6a2ef-7180-4eef-bb2a-0cc9ac0b3054" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AmountsArisingDuringPeriodGainsLossesNetOfTaxExpenseBenefitAbstract_f3f02cda-c813-40de-8b22-459cc7695b23" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_e2f6a2ef-7180-4eef-bb2a-0cc9ac0b3054" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_afbf18c9-301f-4c19-b538-61da9b6c3cfd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AmountsArisingDuringPeriodGainsLossesNetOfTaxExpenseBenefitAbstract_f3f02cda-c813-40de-8b22-459cc7695b23" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_afbf18c9-301f-4c19-b538-61da9b6c3cfd" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTaxAbstract_86bfb323-5ac3-4bcf-bf80-d668f8bccd56" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTaxAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AmountsArisingDuringPeriodGainsLossesNetOfTaxExpenseBenefitAbstract_f3f02cda-c813-40de-8b22-459cc7695b23" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTaxAbstract_86bfb323-5ac3-4bcf-bf80-d668f8bccd56" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax_722e09f2-780b-40aa-a8ec-31fd47cbe68b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTaxAbstract_86bfb323-5ac3-4bcf-bf80-d668f8bccd56" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax_722e09f2-780b-40aa-a8ec-31fd47cbe68b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherComprehensiveIncomeLossReclassificationsToNetIncomeLossNetOfTaxAbstract_39b1a434-da36-4a1e-8f4b-5c4db92f387f" xlink:href="ppl-20210331.xsd#ppl_OtherComprehensiveIncomeLossReclassificationsToNetIncomeLossNetOfTaxAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_5072f439-feb3-4ffe-a92e-93dce388c39a" xlink:to="loc_ppl_OtherComprehensiveIncomeLossReclassificationsToNetIncomeLossNetOfTaxAbstract_39b1a434-da36-4a1e-8f4b-5c4db92f387f" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_45930cae-1328-4567-88dd-93653f47892e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherComprehensiveIncomeLossReclassificationsToNetIncomeLossNetOfTaxAbstract_39b1a434-da36-4a1e-8f4b-5c4db92f387f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_45930cae-1328-4567-88dd-93653f47892e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract_d60015a1-6963-4677-a628-33258e58df60" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherComprehensiveIncomeLossReclassificationsToNetIncomeLossNetOfTaxAbstract_39b1a434-da36-4a1e-8f4b-5c4db92f387f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract_d60015a1-6963-4677-a628-33258e58df60" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax_9a1c4feb-c384-48b1-9a5a-602006ff9b17" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract_d60015a1-6963-4677-a628-33258e58df60" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax_9a1c4feb-c384-48b1-9a5a-602006ff9b17" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax_d5652909-bca0-4f76-b59c-84615bc9feae" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract_d60015a1-6963-4677-a628-33258e58df60" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax_d5652909-bca0-4f76-b59c-84615bc9feae" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_8697c6eb-31d6-4194-8c9b-4428197f3064" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_5072f439-feb3-4ffe-a92e-93dce388c39a" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_8697c6eb-31d6-4194-8c9b-4428197f3064" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_6a5ede70-4e24-400b-a459-76da42c93ff3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_5072f439-feb3-4ffe-a92e-93dce388c39a" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_6a5ede70-4e24-400b-a459-76da42c93ff3" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_ca656469-7556-4bfe-b5d3-a9cf4341fc88" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_715069ea-7d4f-451e-89dd-bfcf3b9b9edd" xlink:to="loc_us-gaap_StatementTable_ca656469-7556-4bfe-b5d3-a9cf4341fc88" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_8dfe36bd-f1be-4153-b87d-dc8b007b430b" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ca656469-7556-4bfe-b5d3-a9cf4341fc88" xlink:to="loc_dei_LegalEntityAxis_8dfe36bd-f1be-4153-b87d-dc8b007b430b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_8dfe36bd-f1be-4153-b87d-dc8b007b430b_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_8dfe36bd-f1be-4153-b87d-dc8b007b430b" xlink:to="loc_dei_EntityDomain_8dfe36bd-f1be-4153-b87d-dc8b007b430b_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_b34b7a47-33f3-47fa-9b72-692385f0eec3" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_8dfe36bd-f1be-4153-b87d-dc8b007b430b" xlink:to="loc_dei_EntityDomain_b34b7a47-33f3-47fa-9b72-692385f0eec3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_7f5fc766-5998-48fc-8b07-57f9c3d4c5f0" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_b34b7a47-33f3-47fa-9b72-692385f0eec3" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_7f5fc766-5998-48fc-8b07-57f9c3d4c5f0" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnauditedParenthetical" xlink:type="simple" xlink:href="ppl-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnauditedParenthetical"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnauditedParenthetical" xlink:type="extended" id="i30ac4366ebf74b91863012a80940f8da_CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnauditedParenthetical">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_a08001c0-f0dd-495c-a36c-cf4006b0ae78" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax_02e560cc-1684-49f6-bcf5-abd6400b1d9f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a08001c0-f0dd-495c-a36c-cf4006b0ae78" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax_02e560cc-1684-49f6-bcf5-abd6400b1d9f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax_e9b69aed-cd4d-44b7-a0ae-5a4c7c5b7737" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a08001c0-f0dd-495c-a36c-cf4006b0ae78" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax_e9b69aed-cd4d-44b7-a0ae-5a4c7c5b7737" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax_60f35b9d-f881-42f1-9777-50ce9cce8ebc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a08001c0-f0dd-495c-a36c-cf4006b0ae78" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax_60f35b9d-f881-42f1-9777-50ce9cce8ebc" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax_b72d7a5d-3f57-4402-bc65-fbb31e2b4fac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a08001c0-f0dd-495c-a36c-cf4006b0ae78" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax_b72d7a5d-3f57-4402-bc65-fbb31e2b4fac" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax_0aa7039d-ffe3-4d75-9a67-6da3bfeaed08" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a08001c0-f0dd-495c-a36c-cf4006b0ae78" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax_0aa7039d-ffe3-4d75-9a67-6da3bfeaed08" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax_0000d519-bd0a-46ed-87e4-eababa7282c5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a08001c0-f0dd-495c-a36c-cf4006b0ae78" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax_0000d519-bd0a-46ed-87e4-eababa7282c5" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_8e6f2b94-7000-40a0-b643-c45f4fe8e7c7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_a08001c0-f0dd-495c-a36c-cf4006b0ae78" xlink:to="loc_us-gaap_StatementTable_8e6f2b94-7000-40a0-b643-c45f4fe8e7c7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_f3a7ad1b-31ff-4a61-bf4e-c52ce065ab7a" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_8e6f2b94-7000-40a0-b643-c45f4fe8e7c7" xlink:to="loc_dei_LegalEntityAxis_f3a7ad1b-31ff-4a61-bf4e-c52ce065ab7a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_f3a7ad1b-31ff-4a61-bf4e-c52ce065ab7a_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_f3a7ad1b-31ff-4a61-bf4e-c52ce065ab7a" xlink:to="loc_dei_EntityDomain_f3a7ad1b-31ff-4a61-bf4e-c52ce065ab7a_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_8cc75402-384b-4454-ada0-0200e9ee11de" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_f3a7ad1b-31ff-4a61-bf4e-c52ce065ab7a" xlink:to="loc_dei_EntityDomain_8cc75402-384b-4454-ada0-0200e9ee11de" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_dba77c94-71c3-42d7-ba2e-008ffe2d8d88" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_8cc75402-384b-4454-ada0-0200e9ee11de" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_dba77c94-71c3-42d7-ba2e-008ffe2d8d88" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited" xlink:type="simple" xlink:href="ppl-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited" xlink:type="extended" id="i09f4994a3e6b40e182de88730f4a1721_CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019032fd-7d98-4659-8498-442ec7ac7c98" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_NetIncomeLoss_019032fd-7d98-4659-8498-442ec7ac7c98" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_ca324fad-3509-4c77-8026-550d66f9b4d8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_ca324fad-3509-4c77-8026-550d66f9b4d8" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_d2bceb34-390a-4aeb-9cbe-caf5a93cf168" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_d2bceb34-390a-4aeb-9cbe-caf5a93cf168" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_37b1f1b0-3e70-4ec4-89ba-3b366005a899" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Depreciation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_Depreciation_37b1f1b0-3e70-4ec4-89ba-3b366005a899" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentForAmortization_f6012a65-9cf8-49b3-b1d0-41abfafa9aaf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentForAmortization"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_AdjustmentForAmortization_f6012a65-9cf8-49b3-b1d0-41abfafa9aaf" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash_c5b86f5d-dbe1-4322-94d8-ecf024bc061c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash_c5b86f5d-dbe1-4322-94d8-ecf024bc061c" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_2abbb88a-430f-44b1-8358-3ab322e1dd71" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_2abbb88a-430f-44b1-8358-3ab322e1dd71" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_Unrealizedgainsonderivativesandotherhedgingactivities_91ead839-9abb-45a0-8ebb-9232cc3d8a82" xlink:href="ppl-20210331.xsd#ppl_Unrealizedgainsonderivativesandotherhedgingactivities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_ppl_Unrealizedgainsonderivativesandotherhedgingactivities_91ead839-9abb-45a0-8ebb-9232cc3d8a82" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_eaf731b1-df98-40a5-ac3b-232b936000a5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_ShareBasedCompensation_eaf731b1-df98-40a5-ac3b-232b936000a5" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_736cbcec-5010-4e89-bd9d-179464694033" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNoncashIncomeExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_736cbcec-5010-4e89-bd9d-179464694033" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_adc5ce8c-45a1-48c7-a5ef-a36e987b8666" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivables_adc5ce8c-45a1-48c7-a5ef-a36e987b8666" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_be5efaf8-d4fd-481f-93a8-1da8ec0cade7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_be5efaf8-d4fd-481f-93a8-1da8ec0cade7" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_2a79fcb8-c146-4819-b74f-1ac406ec0061" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_2a79fcb8-c146-4819-b74f-1ac406ec0061" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties_186c8e91-2e7e-4836-ac90-e2861190a2e5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties_186c8e91-2e7e-4836-ac90-e2861190a2e5" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NetChangeUnbilledRevenues_7660071b-80a6-4138-85fa-02ee4e3d6dae" xlink:href="ppl-20210331.xsd#ppl_NetChangeUnbilledRevenues"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_ppl_NetChangeUnbilledRevenues_7660071b-80a6-4138-85fa-02ee4e3d6dae" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_f1b3903a-4b77-441a-961b-952f1b14fef4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInInventories"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_f1b3903a-4b77-441a-961b-952f1b14fef4" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidExpense_95f7710e-a3df-40ea-8553-32d91f4bba0f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidExpense_95f7710e-a3df-40ea-8553-32d91f4bba0f" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_5d58f315-350e-42b9-b62e-5cf02fe6739a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_5d58f315-350e-42b9-b62e-5cf02fe6739a" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedTaxesPayable_84afa536-abf7-4e62-b322-1ab955ae27ce" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedTaxesPayable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedTaxesPayable_84afa536-abf7-4e62-b322-1ab955ae27ce" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_36a2447c-7ea8-447d-a28c-de84c40d6ea6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_36a2447c-7ea8-447d-a28c-de84c40d6ea6" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_60352068-b8a3-48ec-b6ca-e92ce04956e5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_60352068-b8a3-48ec-b6ca-e92ce04956e5" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_4540dbbc-08cc-45a5-87bb-93e5e94c53d6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_45135c81-aa8f-4f04-bd38-03a56f44ddd5" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_4540dbbc-08cc-45a5-87bb-93e5e94c53d6" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherOperatingActivitiesAbstract_a66c13e0-5407-4cd8-8a21-3e07deeae56c" xlink:href="ppl-20210331.xsd#ppl_OtherOperatingActivitiesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_ppl_OtherOperatingActivitiesAbstract_a66c13e0-5407-4cd8-8a21-3e07deeae56c" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitContributions_655441a4-250a-4719-88a2-910e93882991" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitContributions"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherOperatingActivitiesAbstract_a66c13e0-5407-4cd8-8a21-3e07deeae56c" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitContributions_655441a4-250a-4719-88a2-910e93882991" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationCashPaidToSettle_3a576c72-e578-42e1-878a-8e104d247f4a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligationCashPaidToSettle"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherOperatingActivitiesAbstract_a66c13e0-5407-4cd8-8a21-3e07deeae56c" xlink:to="loc_us-gaap_AssetRetirementObligationCashPaidToSettle_3a576c72-e578-42e1-878a-8e104d247f4a" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_9f94a201-0be2-471e-8b65-57f2a9c676c3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherOperatingActivitiesAbstract_a66c13e0-5407-4cd8-8a21-3e07deeae56c" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_9f94a201-0be2-471e-8b65-57f2a9c676c3" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_e2aa572e-262a-4552-84a3-5a99f3f52b05" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherOperatingActivitiesAbstract_a66c13e0-5407-4cd8-8a21-3e07deeae56c" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_e2aa572e-262a-4552-84a3-5a99f3f52b05" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_8f56bdf6-38e7-4d7d-a2de-5e0566f53669" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_8f56bdf6-38e7-4d7d-a2de-5e0566f53669" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_8decfa22-b697-4010-a658-d59822935b53" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_8decfa22-b697-4010-a658-d59822935b53" xlink:type="arc" order="14"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1e79d70e-ae22-4dc9-9af1-1989721756a7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f80c51f2-982c-4707-bdbb-352851aca42e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1e79d70e-ae22-4dc9-9af1-1989721756a7" xlink:type="arc" order="15"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_fb14f44c-8c99-4d3c-b127-de0487498517" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_fb14f44c-8c99-4d3c-b127-de0487498517" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IncreaseDecreaseInNotesReceivableFromAffiliates_78bf16db-1efb-45e7-aef8-02274e40a815" xlink:href="ppl-20210331.xsd#ppl_IncreaseDecreaseInNotesReceivableFromAffiliates"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:to="loc_ppl_IncreaseDecreaseInNotesReceivableFromAffiliates_78bf16db-1efb-45e7-aef8-02274e40a815" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments_a1440ba1-dc0f-445a-ac9f-5f66115ab396" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireInvestments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments_a1440ba1-dc0f-445a-ac9f-5f66115ab396" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_9b106648-e7ff-4f5a-8af1-767c1d3cd1a3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:to="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_9b106648-e7ff-4f5a-8af1-767c1d3cd1a3" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireIntangibleAssets_c78ddc59-fa77-4dd7-a949-b8af8d29e83d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireIntangibleAssets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:to="loc_us-gaap_PaymentsToAcquireIntangibleAssets_c78ddc59-fa77-4dd7-a949-b8af8d29e83d" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_f84c1d57-2810-449d-ab83-211218e9e641" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_f84c1d57-2810-449d-ab83-211218e9e641" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_9fe698f3-a8ae-4788-9c4e-3bdfe8e94bed" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_9fe698f3-a8ae-4788-9c4e-3bdfe8e94bed" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_4237c941-6b3a-4027-b419-8c8bd7150c5a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:to="loc_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_4237c941-6b3a-4027-b419-8c8bd7150c5a" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_335d2797-7a97-493e-b5f2-1e752f02fc04" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6f0e8a9f-0458-4565-9d91-0424462788fc" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_335d2797-7a97-493e-b5f2-1e752f02fc04" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_433025fc-4867-46f2-be85-6e7c5cdce342" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_433025fc-4867-46f2-be85-6e7c5cdce342" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_e7f2af2e-3e47-423c-adf6-13a91f2081d9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_e7f2af2e-3e47-423c-adf6-13a91f2081d9" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ProceedsFromProjectFinancing_1d38e7e0-64be-486a-bd52-68f1777d0440" xlink:href="ppl-20210331.xsd#ppl_ProceedsFromProjectFinancing"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_ppl_ProceedsFromProjectFinancing_1d38e7e0-64be-486a-bd52-68f1777d0440" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IncreaseDecreaseInNotesPayableToAffiliates_4a566eca-3147-4c87-878b-01d2bcaf84cf" xlink:href="ppl-20210331.xsd#ppl_IncreaseDecreaseInNotesPayableToAffiliates"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_ppl_IncreaseDecreaseInNotesPayableToAffiliates_4a566eca-3147-4c87-878b-01d2bcaf84cf" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDistributionsToAffiliates_e9e552c4-8dd1-43f1-9539-3396d3b43030" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDistributionsToAffiliates"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_PaymentsOfDistributionsToAffiliates_e9e552c4-8dd1-43f1-9539-3396d3b43030" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromContributionsFromAffiliates_bb7fe0a9-90f9-4c42-9d20-3115fb2d8bea" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromContributionsFromAffiliates"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_ProceedsFromContributionsFromAffiliates_bb7fe0a9-90f9-4c42-9d20-3115fb2d8bea" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_eeda8923-f50a-4244-97af-26aab199f263" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_eeda8923-f50a-4244-97af-26aab199f263" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_d0cffe6b-e7cf-4f64-9a8a-6efcb22c2841" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_d0cffe6b-e7cf-4f64-9a8a-6efcb22c2841" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ProceedsFromIssuanceOfTermLoansShortTermDebtMaturingInMoreThanThreeMonths_29144d72-6d2c-46b6-ac6a-b80b49d9c48b" xlink:href="ppl-20210331.xsd#ppl_ProceedsFromIssuanceOfTermLoansShortTermDebtMaturingInMoreThanThreeMonths"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_ppl_ProceedsFromIssuanceOfTermLoansShortTermDebtMaturingInMoreThanThreeMonths_29144d72-6d2c-46b6-ac6a-b80b49d9c48b" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RepaymentsOfTermLoanShortTermDebtMaturingInMoreThanThreeMonths_fd599fc6-718c-4c94-b76b-520b8536432f" xlink:href="ppl-20210331.xsd#ppl_RepaymentsOfTermLoanShortTermDebtMaturingInMoreThanThreeMonths"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_ppl_RepaymentsOfTermLoanShortTermDebtMaturingInMoreThanThreeMonths_fd599fc6-718c-4c94-b76b-520b8536432f" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths_5981166e-46c4-4058-b9fd-0b1d476b76e5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths_5981166e-46c4-4058-b9fd-0b1d476b76e5" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RepaymentsOfCommercialPaperShortTermDebtMaturingInMoreThanThreeMonths_c940a4b0-6aec-474f-8829-fb96d56e9c2b" xlink:href="ppl-20210331.xsd#ppl_RepaymentsOfCommercialPaperShortTermDebtMaturingInMoreThanThreeMonths"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_ppl_RepaymentsOfCommercialPaperShortTermDebtMaturingInMoreThanThreeMonths_c940a4b0-6aec-474f-8829-fb96d56e9c2b" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashDividendsPaidToParentCompany_1c2ab200-e74e-4d2a-88f8-89c4b6f4da96" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashDividendsPaidToParentCompany"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_CashDividendsPaidToParentCompany_1c2ab200-e74e-4d2a-88f8-89c4b6f4da96" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_aa7f0873-45ba-43ef-bc6a-e255903968e0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_aa7f0873-45ba-43ef-bc6a-e255903968e0" xlink:type="arc" order="14"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess_068c6692-dac9-4f66-8e81-95d677f18cd9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess_068c6692-dac9-4f66-8e81-95d677f18cd9" xlink:type="arc" order="15"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromContributionsFromParent_4765e564-cc20-4939-9f24-65bd9c0fc8df" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromContributionsFromParent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_ProceedsFromContributionsFromParent_4765e564-cc20-4939-9f24-65bd9c0fc8df" xlink:type="arc" order="16"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RepaymentOfCapitalToParent_859c7a87-aa24-4dd8-8bc5-4dad0f6dbcb4" xlink:href="ppl-20210331.xsd#ppl_RepaymentOfCapitalToParent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_ppl_RepaymentOfCapitalToParent_859c7a87-aa24-4dd8-8bc5-4dad0f6dbcb4" xlink:type="arc" order="17"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_1d019ba5-fb6e-4fa8-b360-ebef253a2c28" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_1d019ba5-fb6e-4fa8-b360-ebef253a2c28" xlink:type="arc" order="18"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_bdc739e4-14c2-497a-91d9-e4ab8788b88c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_bdc739e4-14c2-497a-91d9-e4ab8788b88c" xlink:type="arc" order="19"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations_1f3e2ecc-47b6-4939-b24c-dc7378736c4f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations_1f3e2ecc-47b6-4939-b24c-dc7378736c4f" xlink:type="arc" order="20"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d7f4f8b-bbb4-49de-80aa-1ae1d5df02ae" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_f81d711e-6be5-4692-8a4d-524d5227567d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d7f4f8b-bbb4-49de-80aa-1ae1d5df02ae" xlink:type="arc" order="21"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_c4940482-4732-48a8-b9e4-18826f37cc2b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_c4940482-4732-48a8-b9e4-18826f37cc2b" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperations_3633b3fd-b0b5-429e-a56f-e31b4eda8820" xlink:href="ppl-20210331.xsd#ppl_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_ppl_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperations_3633b3fd-b0b5-429e-a56f-e31b4eda8820" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_ea388fc9-7aa8-424b-9236-be446d1d3f91" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_ea388fc9-7aa8-424b-9236-be446d1d3f91" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_f5a6c231-dbb4-4d10-9108-cbaf9e023844" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_f5a6c231-dbb4-4d10-9108-cbaf9e023844" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_604a31c2-9bba-49a7-80a6-0aa4de17d29c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_604a31c2-9bba-49a7-80a6-0aa4de17d29c" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_582eafd1-be2e-4fd0-b564-fffae681a07e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_582eafd1-be2e-4fd0-b564-fffae681a07e" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_bc844c76-c25e-42b6-bcb6-5d79526f78c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_6f751b1b-a25e-4f6c-a3b5-c72ba1a69e64" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_2dbc0152-4686-49a0-8377-f814a52caf17" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_2dbc0152-4686-49a0-8377-f814a52caf17" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_8b65d006-386a-4781-afc1-fcc93fb5459d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_2dbc0152-4686-49a0-8377-f814a52caf17" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_8b65d006-386a-4781-afc1-fcc93fb5459d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IntangibleAssetExpendituresIncurredButNotYetPaid_16397e5a-5b5d-47d2-9723-9398c82a1de7" xlink:href="ppl-20210331.xsd#ppl_IntangibleAssetExpendituresIncurredButNotYetPaid"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_2dbc0152-4686-49a0-8377-f814a52caf17" xlink:to="loc_ppl_IntangibleAssetExpendituresIncurredButNotYetPaid_16397e5a-5b5d-47d2-9723-9398c82a1de7" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_c7263868-7cac-4437-a1c1-6e39192a8bd1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_fe496dd6-0f84-42be-8a7d-a7bd5ec177fd" xlink:to="loc_us-gaap_StatementTable_c7263868-7cac-4437-a1c1-6e39192a8bd1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_b2045555-c723-4da8-93c7-50461a9e9ca6" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_c7263868-7cac-4437-a1c1-6e39192a8bd1" xlink:to="loc_dei_LegalEntityAxis_b2045555-c723-4da8-93c7-50461a9e9ca6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_b2045555-c723-4da8-93c7-50461a9e9ca6_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_b2045555-c723-4da8-93c7-50461a9e9ca6" xlink:to="loc_dei_EntityDomain_b2045555-c723-4da8-93c7-50461a9e9ca6_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_944466da-63bf-4490-a3e3-265448dae62d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_b2045555-c723-4da8-93c7-50461a9e9ca6" xlink:to="loc_dei_EntityDomain_944466da-63bf-4490-a3e3-265448dae62d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_d717e3d8-3ebc-4b4a-b53b-c1a955922785" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_944466da-63bf-4490-a3e3-265448dae62d" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_d717e3d8-3ebc-4b4a-b53b-c1a955922785" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_ed4959b1-2af1-4568-9104-332c90a6bac6" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_944466da-63bf-4490-a3e3-265448dae62d" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_ed4959b1-2af1-4568-9104-332c90a6bac6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_3529340e-67ca-4189-8d67-8bbf3168e2a1" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_944466da-63bf-4490-a3e3-265448dae62d" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_3529340e-67ca-4189-8d67-8bbf3168e2a1" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_2607006b-e559-4d35-b516-2d73fc26085e" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_944466da-63bf-4490-a3e3-265448dae62d" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_2607006b-e559-4d35-b516-2d73fc26085e" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnaudited" xlink:type="simple" xlink:href="ppl-20210331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSUnaudited"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnaudited" xlink:type="extended" id="ib03816636ea24824bfbdcd22c3129189_CONDENSEDCONSOLIDATEDBALANCESHEETSUnaudited">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_d1980c5b-70a3-49f0-af40-1bf6b27039ee" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_ec10dd01-1989-4ae3-b85a-5729dcc54beb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_d1980c5b-70a3-49f0-af40-1bf6b27039ee" xlink:to="loc_us-gaap_AssetsAbstract_ec10dd01-1989-4ae3-b85a-5729dcc54beb" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrentAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_ec10dd01-1989-4ae3-b85a-5729dcc54beb" xlink:to="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_2a6ceee3-7d47-4a2c-afc2-d21bd1927261" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_2a6ceee3-7d47-4a2c-afc2-d21bd1927261" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesNetCurrentAbstract_881977c2-26a7-42f1-8530-1d7e4ef22ae2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReceivablesNetCurrentAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:to="loc_us-gaap_ReceivablesNetCurrentAbstract_881977c2-26a7-42f1-8530-1d7e4ef22ae2" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_93d55d11-c1c7-4bfe-a5f1-070536748382" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivablesNetCurrentAbstract_881977c2-26a7-42f1-8530-1d7e4ef22ae2" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_93d55d11-c1c7-4bfe-a5f1-070536748382" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NontradeReceivablesCurrent_8192b3a0-2a21-45cf-b246-4656a78bb394" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NontradeReceivablesCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivablesNetCurrentAbstract_881977c2-26a7-42f1-8530-1d7e4ef22ae2" xlink:to="loc_us-gaap_NontradeReceivablesCurrent_8192b3a0-2a21-45cf-b246-4656a78bb394" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableRelatedParties_c7322148-1eb3-469c-90ee-f58b843741cf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableRelatedParties"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:to="loc_us-gaap_AccountsReceivableRelatedParties_c7322148-1eb3-469c-90ee-f58b843741cf" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableRelatedPartiesCurrent_e591f634-784f-4182-8849-3d1609bc4617" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NotesReceivableRelatedPartiesCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:to="loc_us-gaap_NotesReceivableRelatedPartiesCurrent_e591f634-784f-4182-8849-3d1609bc4617" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnbilledContractsReceivable_c464e21c-0432-4d36-9b9a-c456e0917701" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UnbilledContractsReceivable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:to="loc_us-gaap_UnbilledContractsReceivable_c464e21c-0432-4d36-9b9a-c456e0917701" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_61fe65e1-8a4a-40fc-b782-b3c3eb5e5976" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InventoryNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:to="loc_us-gaap_InventoryNet_61fe65e1-8a4a-40fc-b782-b3c3eb5e5976" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_116cbace-b562-4704-8207-a11e2d621696" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_116cbace-b562-4704-8207-a11e2d621696" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_62104c4f-385e-444d-96b3-e2e5f4153586" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAssetsCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:to="loc_us-gaap_RegulatoryAssetsCurrent_62104c4f-385e-444d-96b3-e2e5f4153586" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_e7f1153c-0e2c-4637-839b-3a76f1766e56" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:to="loc_us-gaap_OtherAssetsCurrent_e7f1153c-0e2c-4637-839b-3a76f1766e56" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_f87b1b1b-9dbe-4416-94f7-9d4b2e11992b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_ed581258-0823-4a1f-bd16-3d8ef35fad90" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_f87b1b1b-9dbe-4416-94f7-9d4b2e11992b" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_a8496b27-aac5-43bc-a24b-4a694abed962" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_ec10dd01-1989-4ae3-b85a-5729dcc54beb" xlink:to="loc_us-gaap_AssetsCurrent_a8496b27-aac5-43bc-a24b-4a694abed962" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_2b83385c-3e9a-41c9-ba1f-cea696300fae" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_ec10dd01-1989-4ae3-b85a-5729dcc54beb" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_2b83385c-3e9a-41c9-ba1f-cea696300fae" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_95536004-c44a-4b29-800d-36ba17558531" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_2b83385c-3e9a-41c9-ba1f-cea696300fae" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_95536004-c44a-4b29-800d-36ba17558531" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_919d1d32-8acd-4c36-8bc3-2c522df74e7e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_2b83385c-3e9a-41c9-ba1f-cea696300fae" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_919d1d32-8acd-4c36-8bc3-2c522df74e7e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_8cfc3ff3-2bcd-4065-a5e4-c35c8bf635f5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_2b83385c-3e9a-41c9-ba1f-cea696300fae" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_8cfc3ff3-2bcd-4065-a5e4-c35c8bf635f5" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentOther_6a08f3bc-3c73-471d-bcc7-21e44c84e84d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentOther"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_2b83385c-3e9a-41c9-ba1f-cea696300fae" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentOther_6a08f3bc-3c73-471d-bcc7-21e44c84e84d" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_ee7b4398-6b92-475f-89c5-88332a6d520c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_2b83385c-3e9a-41c9-ba1f-cea696300fae" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_ee7b4398-6b92-475f-89c5-88332a6d520c" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PropertyPlantAndEquipmentNetNonregulated_93f0cd29-0874-411f-8334-961d921ec3f1" xlink:href="ppl-20210331.xsd#ppl_PropertyPlantAndEquipmentNetNonregulated"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_2b83385c-3e9a-41c9-ba1f-cea696300fae" xlink:to="loc_ppl_PropertyPlantAndEquipmentNetNonregulated_93f0cd29-0874-411f-8334-961d921ec3f1" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressGross_985bb330-666f-4d34-9780-80f2da913f8d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ConstructionInProgressGross"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_2b83385c-3e9a-41c9-ba1f-cea696300fae" xlink:to="loc_us-gaap_ConstructionInProgressGross_985bb330-666f-4d34-9780-80f2da913f8d" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_17dd44e8-1340-42cf-a305-bc36e2be1b04" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_2b83385c-3e9a-41c9-ba1f-cea696300fae" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_17dd44e8-1340-42cf-a305-bc36e2be1b04" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrentAbstract_9d291a8f-2eca-4025-bae6-b8424dfdb8f7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsNoncurrentAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_ec10dd01-1989-4ae3-b85a-5729dcc54beb" xlink:to="loc_us-gaap_AssetsNoncurrentAbstract_9d291a8f-2eca-4025-bae6-b8424dfdb8f7" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_c8a5a84c-53ac-4b24-ae7b-a8e13dd1dab8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract_9d291a8f-2eca-4025-bae6-b8424dfdb8f7" xlink:to="loc_us-gaap_RegulatoryAssetsNoncurrent_c8a5a84c-53ac-4b24-ae7b-a8e13dd1dab8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_f8d127fa-583b-4a89-bb94-ee27dc72b4ca" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract_9d291a8f-2eca-4025-bae6-b8424dfdb8f7" xlink:to="loc_us-gaap_Goodwill_f8d127fa-583b-4a89-bb94-ee27dc72b4ca" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_4ea6d07a-b8e5-4b49-846d-7798af46e9a9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract_9d291a8f-2eca-4025-bae6-b8424dfdb8f7" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_4ea6d07a-b8e5-4b49-846d-7798af46e9a9" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_da8176f1-7f3b-44ab-af18-86257e092962" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract_9d291a8f-2eca-4025-bae6-b8424dfdb8f7" xlink:to="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_da8176f1-7f3b-44ab-af18-86257e092962" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_1f09e7cb-dca0-46fd-9337-a537ad5eba09" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract_9d291a8f-2eca-4025-bae6-b8424dfdb8f7" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_1f09e7cb-dca0-46fd-9337-a537ad5eba09" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_01d7e9c6-486b-4f30-b7ef-305e1d8f1449" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract_9d291a8f-2eca-4025-bae6-b8424dfdb8f7" xlink:to="loc_us-gaap_AssetsNoncurrent_01d7e9c6-486b-4f30-b7ef-305e1d8f1449" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_f8033200-de53-4ee7-82d5-11ca953435ca" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Assets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_ec10dd01-1989-4ae3-b85a-5729dcc54beb" xlink:to="loc_us-gaap_Assets_f8033200-de53-4ee7-82d5-11ca953435ca" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_8ccaffde-aa32-4ccb-beec-bebaed49e3d8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_d1980c5b-70a3-49f0-af40-1bf6b27039ee" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_8ccaffde-aa32-4ccb-beec-bebaed49e3d8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_8ccaffde-aa32-4ccb-beec-bebaed49e3d8" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_c5e175df-d5d4-497b-b9a4-26e4ee6a1be1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermBorrowings"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_ShortTermBorrowings_c5e175df-d5d4-497b-b9a4-26e4ee6a1be1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_82dcb7fb-4cad-4018-8c31-a626e4a389ed" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_LongTermDebtCurrent_82dcb7fb-4cad-4018-8c31-a626e4a389ed" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent_75188100-d813-4448-81e0-3cba4e8b4718" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NotesPayableRelatedPartiesClassifiedCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent_75188100-d813-4448-81e0-3cba4e8b4718" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_aa9cfff5-95ec-4885-82b9-b17316fe6e68" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_AccountsPayableCurrent_aa9cfff5-95ec-4885-82b9-b17316fe6e68" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableRelatedPartiesCurrent_472653b6-00a3-4e3b-9049-08e116b6bfcb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsPayableRelatedPartiesCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_AccountsPayableRelatedPartiesCurrent_472653b6-00a3-4e3b-9049-08e116b6bfcb" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrent_87649198-434c-4ac1-8600-bf65b33f6daa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TaxesPayableCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_TaxesPayableCurrent_87649198-434c-4ac1-8600-bf65b33f6daa" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PriceRiskManagementLiabilitiesCurrent_c8f9e96c-ea26-4ed9-8275-95aeb6b34103" xlink:href="ppl-20210331.xsd#ppl_PriceRiskManagementLiabilitiesCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_ppl_PriceRiskManagementLiabilitiesCurrent_c8f9e96c-ea26-4ed9-8275-95aeb6b34103" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrent_dc10bd63-8279-438d-9e99-1286cbfef8d8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestPayableCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_InterestPayableCurrent_dc10bd63-8279-438d-9e99-1286cbfef8d8" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrent_26715e4f-af43-4606-bd57-21e561e58d51" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DividendsPayableCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_DividendsPayableCurrent_26715e4f-af43-4606-bd57-21e561e58d51" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CurrentCustomerDeposits_730099a5-4b88-417b-b31d-263304125b0a" xlink:href="ppl-20210331.xsd#ppl_CurrentCustomerDeposits"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_ppl_CurrentCustomerDeposits_730099a5-4b88-417b-b31d-263304125b0a" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryLiabilityCurrent_548accbc-d413-4d5a-8e09-1aba88eb2ab1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_RegulatoryLiabilityCurrent_548accbc-d413-4d5a-8e09-1aba88eb2ab1" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationCurrent_0b53aa96-4880-4d30-9ee4-55dd8ae4c7fc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligationCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_AssetRetirementObligationCurrent_0b53aa96-4880-4d30-9ee4-55dd8ae4c7fc" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_746f44a5-22f8-42cf-8f10-3669e15fa9ee" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLiabilitiesCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_746f44a5-22f8-42cf-8f10-3669e15fa9ee" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_0da58953-82f8-4b8c-8d29-1b13e5ee91a1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_0da58953-82f8-4b8c-8d29-1b13e5ee91a1" xlink:type="arc" order="14"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_d64781a6-448c-48cc-9fa4-6789f090648b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_749c3454-4e49-4c1e-bde3-efd697b0209f" xlink:to="loc_us-gaap_LiabilitiesCurrent_d64781a6-448c-48cc-9fa4-6789f090648b" xlink:type="arc" order="15"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAbstract_c47c7fc7-12ec-4251-a4eb-9224828f38d1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_8ccaffde-aa32-4ccb-beec-bebaed49e3d8" xlink:to="loc_us-gaap_LongTermDebtAbstract_c47c7fc7-12ec-4251-a4eb-9224828f38d1" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermNotesAndLoans_c857117a-e774-4f19-ad4a-6aee66a0ac63" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermNotesAndLoans"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermDebtAbstract_c47c7fc7-12ec-4251-a4eb-9224828f38d1" xlink:to="loc_us-gaap_LongTermNotesAndLoans_c857117a-e774-4f19-ad4a-6aee66a0ac63" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableRelatedPartiesNoncurrent_2154de97-208c-4d69-aac5-cec19d13cc35" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NotesPayableRelatedPartiesNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermDebtAbstract_c47c7fc7-12ec-4251-a4eb-9224828f38d1" xlink:to="loc_us-gaap_NotesPayableRelatedPartiesNoncurrent_2154de97-208c-4d69-aac5-cec19d13cc35" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_38b61f2c-a46e-4f05-89f4-9e83179ac426" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermDebtAbstract_c47c7fc7-12ec-4251-a4eb-9224828f38d1" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_38b61f2c-a46e-4f05-89f4-9e83179ac426" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract_b049d893-c61f-45db-914a-acd5147ff7bf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_8ccaffde-aa32-4ccb-beec-bebaed49e3d8" xlink:to="loc_us-gaap_LiabilitiesNoncurrentAbstract_b049d893-c61f-45db-914a-acd5147ff7bf" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_e16b40f2-9d7d-4396-9ed5-575134e9a00c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_b049d893-c61f-45db-914a-acd5147ff7bf" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_e16b40f2-9d7d-4396-9ed5-575134e9a00c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DeferredInvestmentTaxCredit_5c3555db-64b8-497a-a3ce-02873fc74662" xlink:href="ppl-20210331.xsd#ppl_DeferredInvestmentTaxCredit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_b049d893-c61f-45db-914a-acd5147ff7bf" xlink:to="loc_ppl_DeferredInvestmentTaxCredit_5c3555db-64b8-497a-a3ce-02873fc74662" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_29648ea6-5cda-412f-abd7-2683b9782b63" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_b049d893-c61f-45db-914a-acd5147ff7bf" xlink:to="loc_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_29648ea6-5cda-412f-abd7-2683b9782b63" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationsNoncurrent_467d4d92-9a2d-454b-bf2b-44d0e1d7c311" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligationsNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_b049d893-c61f-45db-914a-acd5147ff7bf" xlink:to="loc_us-gaap_AssetRetirementObligationsNoncurrent_467d4d92-9a2d-454b-bf2b-44d0e1d7c311" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryLiabilityNoncurrent_e4aec4a4-3d97-4520-8626-d53dcfdc58f6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryLiabilityNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_b049d893-c61f-45db-914a-acd5147ff7bf" xlink:to="loc_us-gaap_RegulatoryLiabilityNoncurrent_e4aec4a4-3d97-4520-8626-d53dcfdc58f6" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PriceRiskManagementLiabilities_aaf0d5c4-bd98-487c-91df-e7c6654efe92" xlink:href="ppl-20210331.xsd#ppl_PriceRiskManagementLiabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_b049d893-c61f-45db-914a-acd5147ff7bf" xlink:to="loc_ppl_PriceRiskManagementLiabilities_aaf0d5c4-bd98-487c-91df-e7c6654efe92" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_a3cfdf1e-fd09-464c-98ed-970d2b7e2a84" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_b049d893-c61f-45db-914a-acd5147ff7bf" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_a3cfdf1e-fd09-464c-98ed-970d2b7e2a84" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_e0b2d89c-62b1-47a1-9502-2f2d333a5d3e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_b049d893-c61f-45db-914a-acd5147ff7bf" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_e0b2d89c-62b1-47a1-9502-2f2d333a5d3e" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_b490fc17-6422-4551-a5bb-9cc577476df9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_8ccaffde-aa32-4ccb-beec-bebaed49e3d8" xlink:to="loc_us-gaap_CommitmentsAndContingencies_b490fc17-6422-4551-a5bb-9cc577476df9" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_e9b2b28e-9365-4cfe-aecc-6745518e5945" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_8ccaffde-aa32-4ccb-beec-bebaed49e3d8" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_e9b2b28e-9365-4cfe-aecc-6745518e5945" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_af91c1f0-a4be-4788-bf67-625f34ab84af" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_e9b2b28e-9365-4cfe-aecc-6745518e5945" xlink:to="loc_us-gaap_CommonStockValue_af91c1f0-a4be-4788-bf67-625f34ab84af" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_66f21164-b415-4f95-b468-3b2259c12c81" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_e9b2b28e-9365-4cfe-aecc-6745518e5945" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_66f21164-b415-4f95-b468-3b2259c12c81" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_35927508-a6a0-4cef-9709-298cf93778e7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_e9b2b28e-9365-4cfe-aecc-6745518e5945" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_35927508-a6a0-4cef-9709-298cf93778e7" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_c2e38219-c750-4788-9aa4-d19c518c9494" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_e9b2b28e-9365-4cfe-aecc-6745518e5945" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_c2e38219-c750-4788-9aa4-d19c518c9494" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_a4d6e9f0-26b3-4be2-b177-997fc859240c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_e9b2b28e-9365-4cfe-aecc-6745518e5945" xlink:to="loc_us-gaap_StockholdersEquity_a4d6e9f0-26b3-4be2-b177-997fc859240c" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_MembersEquity_91bd3c5d-c3ba-4514-a28c-b5ecfde897bd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MembersEquity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_e9b2b28e-9365-4cfe-aecc-6745518e5945" xlink:to="loc_us-gaap_MembersEquity_91bd3c5d-c3ba-4514-a28c-b5ecfde897bd" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_ea1f18a1-3af6-4aa0-8c71-d0050d4498fd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_8ccaffde-aa32-4ccb-beec-bebaed49e3d8" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_ea1f18a1-3af6-4aa0-8c71-d0050d4498fd" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_eb0197b9-1940-4219-9882-f92c101713e0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_d1980c5b-70a3-49f0-af40-1bf6b27039ee" xlink:to="loc_us-gaap_StatementTable_eb0197b9-1940-4219-9882-f92c101713e0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_faf426a2-0c59-4143-9cde-689cfdfce947" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_eb0197b9-1940-4219-9882-f92c101713e0" xlink:to="loc_dei_LegalEntityAxis_faf426a2-0c59-4143-9cde-689cfdfce947" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_faf426a2-0c59-4143-9cde-689cfdfce947_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_faf426a2-0c59-4143-9cde-689cfdfce947" xlink:to="loc_dei_EntityDomain_faf426a2-0c59-4143-9cde-689cfdfce947_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_fce0360b-8944-4426-b2d4-e8e62d3d49c5" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_faf426a2-0c59-4143-9cde-689cfdfce947" xlink:to="loc_dei_EntityDomain_fce0360b-8944-4426-b2d4-e8e62d3d49c5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_ce57c475-c0ba-4b68-b577-edd5594ef58c" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_fce0360b-8944-4426-b2d4-e8e62d3d49c5" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_ce57c475-c0ba-4b68-b577-edd5594ef58c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_cfc92c84-1bc2-4aff-b48a-1c96108b8117" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_fce0360b-8944-4426-b2d4-e8e62d3d49c5" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_cfc92c84-1bc2-4aff-b48a-1c96108b8117" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_ec9262bb-c222-442f-a22a-ee91f30811ab" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_fce0360b-8944-4426-b2d4-e8e62d3d49c5" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_ec9262bb-c222-442f-a22a-ee91f30811ab" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_0a520cef-eb83-4bfa-a203-115eff465b77" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_fce0360b-8944-4426-b2d4-e8e62d3d49c5" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_0a520cef-eb83-4bfa-a203-115eff465b77" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParenthetical" xlink:type="simple" xlink:href="ppl-20210331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParenthetical"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParenthetical" xlink:type="extended" id="i3e1d4f3e1e7a4f438e710ea385ee219e_CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParenthetical">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_4461470c-5791-49d5-9b0b-c1e548fd6725" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_42712c93-9358-4ceb-8016-5f618c86653f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4461470c-5791-49d5-9b0b-c1e548fd6725" xlink:to="loc_us-gaap_AssetsAbstract_42712c93-9358-4ceb-8016-5f618c86653f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_a8d85251-2c32-497e-817c-e3c9c35e786f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrentAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_42712c93-9358-4ceb-8016-5f618c86653f" xlink:to="loc_us-gaap_AssetsCurrentAbstract_a8d85251-2c32-497e-817c-e3c9c35e786f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesNetCurrentAbstract_1e7681df-991a-4fd2-a835-52641a6271ae" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReceivablesNetCurrentAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_a8d85251-2c32-497e-817c-e3c9c35e786f" xlink:to="loc_us-gaap_ReceivablesNetCurrentAbstract_1e7681df-991a-4fd2-a835-52641a6271ae" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_14c99302-223f-4460-b658-482d2b3cc0d9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivablesNetCurrentAbstract_1e7681df-991a-4fd2-a835-52641a6271ae" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_14c99302-223f-4460-b658-482d2b3cc0d9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UnbilledContractsReceivableAllowanceforCreditLossCurrent_c9deec10-53e9-4dda-893d-d2180d404121" xlink:href="ppl-20210331.xsd#ppl_UnbilledContractsReceivableAllowanceforCreditLossCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_a8d85251-2c32-497e-817c-e3c9c35e786f" xlink:to="loc_ppl_UnbilledContractsReceivableAllowanceforCreditLossCurrent_c9deec10-53e9-4dda-893d-d2180d404121" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_14b111fe-2c14-46ae-ab5f-5bfedd72bae5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4461470c-5791-49d5-9b0b-c1e548fd6725" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_14b111fe-2c14-46ae-ab5f-5bfedd72bae5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_638c5e53-487d-4ea1-acbc-55ccdec4ea31" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_14b111fe-2c14-46ae-ab5f-5bfedd72bae5" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_638c5e53-487d-4ea1-acbc-55ccdec4ea31" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_782cd291-70f4-4ce2-bf26-ff6d20c9750c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_638c5e53-487d-4ea1-acbc-55ccdec4ea31" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_782cd291-70f4-4ce2-bf26-ff6d20c9750c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockNoParValue_84de9eb1-fa7d-4c56-b18f-93e309c7d4da" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockNoParValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_638c5e53-487d-4ea1-acbc-55ccdec4ea31" xlink:to="loc_us-gaap_CommonStockNoParValue_84de9eb1-fa7d-4c56-b18f-93e309c7d4da" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_1c675ed9-6af4-4bdf-b657-94d5d269fe6d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesAuthorized"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_638c5e53-487d-4ea1-acbc-55ccdec4ea31" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_1c675ed9-6af4-4bdf-b657-94d5d269fe6d" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_e0e23e00-8c82-4153-9941-6c0f7737fc20" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesIssued"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_638c5e53-487d-4ea1-acbc-55ccdec4ea31" xlink:to="loc_us-gaap_CommonStockSharesIssued_e0e23e00-8c82-4153-9941-6c0f7737fc20" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_f40debb4-0663-4b20-bc90-044ad503b131" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_638c5e53-487d-4ea1-acbc-55ccdec4ea31" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_f40debb4-0663-4b20-bc90-044ad503b131" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_5feff010-336c-4300-9a0f-8b8b85389512" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_4461470c-5791-49d5-9b0b-c1e548fd6725" xlink:to="loc_us-gaap_StatementTable_5feff010-336c-4300-9a0f-8b8b85389512" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_93f1ca34-7b38-498f-aa63-0af1f49b3feb" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_5feff010-336c-4300-9a0f-8b8b85389512" xlink:to="loc_dei_LegalEntityAxis_93f1ca34-7b38-498f-aa63-0af1f49b3feb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_93f1ca34-7b38-498f-aa63-0af1f49b3feb_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_93f1ca34-7b38-498f-aa63-0af1f49b3feb" xlink:to="loc_dei_EntityDomain_93f1ca34-7b38-498f-aa63-0af1f49b3feb_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_980c0311-00f4-4b30-a0d6-5d5207ad2042" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_93f1ca34-7b38-498f-aa63-0af1f49b3feb" xlink:to="loc_dei_EntityDomain_980c0311-00f4-4b30-a0d6-5d5207ad2042" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_93ad8999-f2d2-4a46-a871-bc936ff4f627" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_980c0311-00f4-4b30-a0d6-5d5207ad2042" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_93ad8999-f2d2-4a46-a871-bc936ff4f627" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_1aa6439d-2d5b-44af-810a-31d9e07c84dc" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_980c0311-00f4-4b30-a0d6-5d5207ad2042" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_1aa6439d-2d5b-44af-810a-31d9e07c84dc" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_23f80ad7-7c4d-49a7-968b-7233410dafc3" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_980c0311-00f4-4b30-a0d6-5d5207ad2042" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_23f80ad7-7c4d-49a7-968b-7233410dafc3" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_9c4af557-9803-44a0-a2b3-dec11e8d8912" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_980c0311-00f4-4b30-a0d6-5d5207ad2042" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_9c4af557-9803-44a0-a2b3-dec11e8d8912" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITYUnaudited" xlink:type="simple" xlink:href="ppl-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITYUnaudited"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITYUnaudited" xlink:type="extended" id="i9a711811c9d14c9ab24f86fb8a2e6d58_CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITYUnaudited">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_b6db3c8d-be34-49d9-878e-8538ea6a80f6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_b6db3c8d-be34-49d9-878e-8538ea6a80f6" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_b4e234b7-4df7-4e56-b404-60553892d055" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_b4e234b7-4df7-4e56-b404-60553892d055" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_97382412-627c-43d7-bb32-a063dac1a7c5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_StockholdersEquity_97382412-627c-43d7-bb32-a063dac1a7c5" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_MembersEquity_4afde152-f945-442f-aeef-2e0df976bf72" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MembersEquity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_MembersEquity_4afde152-f945-442f-aeef-2e0df976bf72" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_11304b2a-5e1a-4d65-8ba5-ef9396a9097b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_11304b2a-5e1a-4d65-8ba5-ef9396a9097b" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_2587a1fe-fa8f-4c59-b0af-96a980ce794f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_2587a1fe-fa8f-4c59-b0af-96a980ce794f" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_StockBasedCompensation_8b960ea0-2e0d-4b29-ae67-5336f70249eb" xlink:href="ppl-20210331.xsd#ppl_StockBasedCompensation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_ppl_StockBasedCompensation_8b960ea0-2e0d-4b29-ae67-5336f70249eb" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_8eefd625-a455-4f8c-8f7a-5a9ce4ba2616" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_NetIncomeLoss_8eefd625-a455-4f8c-8f7a-5a9ce4ba2616" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CapitalContributionsFromParent_c44cf3c3-b5a9-422c-836d-1d70b8fe062f" xlink:href="ppl-20210331.xsd#ppl_CapitalContributionsFromParent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_ppl_CapitalContributionsFromParent_c44cf3c3-b5a9-422c-836d-1d70b8fe062f" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Dividends_3e2d56a7-3513-46be-aa5e-891e4fc76c50" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Dividends"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_Dividends_3e2d56a7-3513-46be-aa5e-891e4fc76c50" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DividendsCommonStockCashAndNonCash_30ccf2af-4d98-4b81-865a-87ae1b0dbe43" xlink:href="ppl-20210331.xsd#ppl_DividendsCommonStockCashAndNonCash"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_ppl_DividendsCommonStockCashAndNonCash_30ccf2af-4d98-4b81-865a-87ae1b0dbe43" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared_77a580c7-b245-4252-af99-99cd50e05aed" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared_77a580c7-b245-4252-af99-99cd50e05aed" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_41aa95fd-1583-4fa6-a7d6-39c4493d9c86" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_41aa95fd-1583-4fa6-a7d6-39c4493d9c86" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_27166584-7b76-4e7a-b7ed-8ecbc7f0ca73" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_0345812a-b8b3-441b-b530-983a67fdef8c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_MembersEquity_28de8cf1-f4db-418b-b9cf-3728db149c24" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MembersEquity"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromContributionsFromParent_91a7ccf9-3579-46f8-8e18-56033cfcdc50" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromContributionsFromParent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_ProceedsFromContributionsFromParent_91a7ccf9-3579-46f8-8e18-56033cfcdc50" xlink:type="arc" order="16"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromContributionsFromAffiliates_1281fbf7-3b85-44db-a456-e285cf2f0b1e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromContributionsFromAffiliates"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_ProceedsFromContributionsFromAffiliates_1281fbf7-3b85-44db-a456-e285cf2f0b1e" xlink:type="arc" order="17"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ContributionsMadeToLimitedLiabilityCompanyLLC_fae7df2d-1706-4001-a8b3-53a061f83fe8" xlink:href="ppl-20210331.xsd#ppl_ContributionsMadeToLimitedLiabilityCompanyLLC"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_ppl_ContributionsMadeToLimitedLiabilityCompanyLLC_fae7df2d-1706-4001-a8b3-53a061f83fe8" xlink:type="arc" order="18"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_9a4ed3b9-1ebd-41c5-b687-2db007bec483" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_9a4ed3b9-1ebd-41c5-b687-2db007bec483" xlink:type="arc" order="19"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ReturnOfCapitalToParent_4a3aab1c-1052-4b0c-837c-36a35c591772" xlink:href="ppl-20210331.xsd#ppl_ReturnOfCapitalToParent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_ppl_ReturnOfCapitalToParent_4a3aab1c-1052-4b0c-837c-36a35c591772" xlink:type="arc" order="20"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TaxEffectOfNewAccountingPrincipleInPeriodOfAdoption_d8642164-35c8-4f71-8657-f0e8dc9512a0" xlink:href="ppl-20210331.xsd#ppl_TaxEffectOfNewAccountingPrincipleInPeriodOfAdoption"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_ppl_TaxEffectOfNewAccountingPrincipleInPeriodOfAdoption_d8642164-35c8-4f71-8657-f0e8dc9512a0" xlink:type="arc" order="21"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_63e5b2d5-0624-4125-a6cf-6fb50f3b336c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_5a3b4061-c19c-49b3-8236-164413b747c3" xlink:to="loc_us-gaap_StatementTable_63e5b2d5-0624-4125-a6cf-6fb50f3b336c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_de252ec9-d470-47a6-9a9b-d143a33e271a" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_63e5b2d5-0624-4125-a6cf-6fb50f3b336c" xlink:to="loc_dei_LegalEntityAxis_de252ec9-d470-47a6-9a9b-d143a33e271a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_de252ec9-d470-47a6-9a9b-d143a33e271a_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_de252ec9-d470-47a6-9a9b-d143a33e271a" xlink:to="loc_dei_EntityDomain_de252ec9-d470-47a6-9a9b-d143a33e271a_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_4896a302-31cd-4149-81df-07cf00154d7f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_de252ec9-d470-47a6-9a9b-d143a33e271a" xlink:to="loc_dei_EntityDomain_4896a302-31cd-4149-81df-07cf00154d7f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_71d0b984-0914-44bb-891c-ea1796e4b4fd" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_4896a302-31cd-4149-81df-07cf00154d7f" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_71d0b984-0914-44bb-891c-ea1796e4b4fd" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_c10f16d4-aeff-4ac2-9a57-42dd3dc3e184" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_4896a302-31cd-4149-81df-07cf00154d7f" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_c10f16d4-aeff-4ac2-9a57-42dd3dc3e184" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_af96df55-a6a3-4de7-8287-12a3003ab2fb" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_4896a302-31cd-4149-81df-07cf00154d7f" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_af96df55-a6a3-4de7-8287-12a3003ab2fb" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_1d33e657-b34b-4f94-87fe-0becd3c9e51c" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_4896a302-31cd-4149-81df-07cf00154d7f" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_1d33e657-b34b-4f94-87fe-0becd3c9e51c" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_4fbb60cb-c204-4a20-909e-1e54f0e38ced" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_63e5b2d5-0624-4125-a6cf-6fb50f3b336c" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_4fbb60cb-c204-4a20-909e-1e54f0e38ced" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_4fbb60cb-c204-4a20-909e-1e54f0e38ced_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_4fbb60cb-c204-4a20-909e-1e54f0e38ced" xlink:to="loc_us-gaap_EquityComponentDomain_4fbb60cb-c204-4a20-909e-1e54f0e38ced_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_78416429-6b15-4b5c-a4c3-a4ce343b0fdc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_4fbb60cb-c204-4a20-909e-1e54f0e38ced" xlink:to="loc_us-gaap_EquityComponentDomain_78416429-6b15-4b5c-a4c3-a4ce343b0fdc" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_8f57fdb9-2869-4082-ae51-75bc25c67066" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_78416429-6b15-4b5c-a4c3-a4ce343b0fdc" xlink:to="loc_us-gaap_CommonStockMember_8f57fdb9-2869-4082-ae51-75bc25c67066" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_e79a8076-44cb-4ba7-aa04-875ade19ec79" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_78416429-6b15-4b5c-a4c3-a4ce343b0fdc" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_e79a8076-44cb-4ba7-aa04-875ade19ec79" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_072c9e59-532a-46bb-9f53-bdcc6b75ba2a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_78416429-6b15-4b5c-a4c3-a4ce343b0fdc" xlink:to="loc_us-gaap_RetainedEarningsMember_072c9e59-532a-46bb-9f53-bdcc6b75ba2a" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_e22ff672-bac5-438c-9a6b-97a58abd8781" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_78416429-6b15-4b5c-a4c3-a4ce343b0fdc" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_e22ff672-bac5-438c-9a6b-97a58abd8781" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_1e38b68d-d0fe-464d-b29a-a5e006893301" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_63e5b2d5-0624-4125-a6cf-6fb50f3b336c" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_1e38b68d-d0fe-464d-b29a-a5e006893301" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_1e38b68d-d0fe-464d-b29a-a5e006893301_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_1e38b68d-d0fe-464d-b29a-a5e006893301" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_1e38b68d-d0fe-464d-b29a-a5e006893301_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_b927f855-e72d-4f47-9fe9-155ce2d1d9ef" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_1e38b68d-d0fe-464d-b29a-a5e006893301" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_b927f855-e72d-4f47-9fe9-155ce2d1d9ef" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_6ca845ed-2ff2-4f83-a52b-8da2d06fc07b" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_b927f855-e72d-4f47-9fe9-155ce2d1d9ef" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_6ca845ed-2ff2-4f83-a52b-8da2d06fc07b" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITYUnauditedParenthetical" xlink:type="simple" xlink:href="ppl-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITYUnauditedParenthetical"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITYUnauditedParenthetical" xlink:type="extended" id="i1ca456cadaaa49b0b1bc9506278833bb_CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITYUnauditedParenthetical">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_0b0523d4-7b6b-455b-8799-ba04a5e491eb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_VotesPerShareOfCommonStock_6150a116-c538-4399-9405-99a30bda720a" xlink:href="ppl-20210331.xsd#ppl_VotesPerShareOfCommonStock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0b0523d4-7b6b-455b-8799-ba04a5e491eb" xlink:to="loc_ppl_VotesPerShareOfCommonStock_6150a116-c538-4399-9405-99a30bda720a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TaxEffectOfNewAccountingPrincipleInPeriodOfAdoption_8855ffa2-89c7-4b92-9a63-bbd024bad385" xlink:href="ppl-20210331.xsd#ppl_TaxEffectOfNewAccountingPrincipleInPeriodOfAdoption"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0b0523d4-7b6b-455b-8799-ba04a5e491eb" xlink:to="loc_ppl_TaxEffectOfNewAccountingPrincipleInPeriodOfAdoption_8855ffa2-89c7-4b92-9a63-bbd024bad385" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_12bfab26-31b0-4020-a76f-f7afe90160a0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_0b0523d4-7b6b-455b-8799-ba04a5e491eb" xlink:to="loc_us-gaap_StatementTable_12bfab26-31b0-4020-a76f-f7afe90160a0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_92dfe010-2120-4a12-ba7a-173d6b8e8e00" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_12bfab26-31b0-4020-a76f-f7afe90160a0" xlink:to="loc_dei_LegalEntityAxis_92dfe010-2120-4a12-ba7a-173d6b8e8e00" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_92dfe010-2120-4a12-ba7a-173d6b8e8e00_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_92dfe010-2120-4a12-ba7a-173d6b8e8e00" xlink:to="loc_dei_EntityDomain_92dfe010-2120-4a12-ba7a-173d6b8e8e00_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_b262c72f-8586-46f1-8a7c-6f15d8255104" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_92dfe010-2120-4a12-ba7a-173d6b8e8e00" xlink:to="loc_dei_EntityDomain_b262c72f-8586-46f1-8a7c-6f15d8255104" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_95ca41b2-1bbf-4cc6-9506-d2674b435a58" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_b262c72f-8586-46f1-8a7c-6f15d8255104" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_95ca41b2-1bbf-4cc6-9506-d2674b435a58" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_f2341418-0000-4ba6-a9ea-c1d57d3aa5e9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_12bfab26-31b0-4020-a76f-f7afe90160a0" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_f2341418-0000-4ba6-a9ea-c1d57d3aa5e9" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_f2341418-0000-4ba6-a9ea-c1d57d3aa5e9_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_f2341418-0000-4ba6-a9ea-c1d57d3aa5e9" xlink:to="loc_us-gaap_EquityComponentDomain_f2341418-0000-4ba6-a9ea-c1d57d3aa5e9_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_da237809-a94e-49d7-9451-9f3e66d5d375" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_f2341418-0000-4ba6-a9ea-c1d57d3aa5e9" xlink:to="loc_us-gaap_EquityComponentDomain_da237809-a94e-49d7-9451-9f3e66d5d375" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_3b53852d-ba8b-42ee-935b-db90a188cff1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_da237809-a94e-49d7-9451-9f3e66d5d375" xlink:to="loc_us-gaap_RetainedEarningsMember_3b53852d-ba8b-42ee-935b-db90a188cff1" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/InterimFinancialStatements" xlink:type="simple" xlink:href="ppl-20210331.xsd#InterimFinancialStatements"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/InterimFinancialStatements" xlink:type="extended" id="iec136fdf28b7447185d62d2cd8c63182_InterimFinancialStatements"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/SummaryofSignificantAccountingPolicies" xlink:type="simple" xlink:href="ppl-20210331.xsd#SummaryofSignificantAccountingPolicies"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/SummaryofSignificantAccountingPolicies" xlink:type="extended" id="i8dba9c9445bf48e187c704e8c6b40aab_SummaryofSignificantAccountingPolicies"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/SummaryofSignificantAccountingPoliciesPolicies" xlink:type="simple" xlink:href="ppl-20210331.xsd#SummaryofSignificantAccountingPoliciesPolicies"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/SummaryofSignificantAccountingPoliciesPolicies" xlink:type="extended" id="i6fbb9c6dfcba427c850979b4f31a2b58_SummaryofSignificantAccountingPoliciesPolicies">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_75fe4279-d422-43cf-b99f-c6e68357cc3b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditLossFinancialInstrumentPolicyTextBlock_7adfed53-76f1-44f7-ae7a-cf47d11b501e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CreditLossFinancialInstrumentPolicyTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_75fe4279-d422-43cf-b99f-c6e68357cc3b" xlink:to="loc_us-gaap_CreditLossFinancialInstrumentPolicyTextBlock_7adfed53-76f1-44f7-ae7a-cf47d11b501e" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_05b32f27-7455-4efc-a597-be2c3e6e8291" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_75fe4279-d422-43cf-b99f-c6e68357cc3b" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_05b32f27-7455-4efc-a597-be2c3e6e8291" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_a5b0ee13-329a-4453-872d-a134d47d7b44" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_75fe4279-d422-43cf-b99f-c6e68357cc3b" xlink:to="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_a5b0ee13-329a-4453-872d-a134d47d7b44" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_3f733c3b-248a-43bd-8061-113ec69b1571" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_75fe4279-d422-43cf-b99f-c6e68357cc3b" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_3f733c3b-248a-43bd-8061-113ec69b1571" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_576fa41c-442b-4937-a048-d4c945679fa3" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_3f733c3b-248a-43bd-8061-113ec69b1571" xlink:to="loc_dei_LegalEntityAxis_576fa41c-442b-4937-a048-d4c945679fa3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_576fa41c-442b-4937-a048-d4c945679fa3_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_576fa41c-442b-4937-a048-d4c945679fa3" xlink:to="loc_dei_EntityDomain_576fa41c-442b-4937-a048-d4c945679fa3_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_cb8c59a9-b85b-4a29-9189-e248dceaa76e" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_576fa41c-442b-4937-a048-d4c945679fa3" xlink:to="loc_dei_EntityDomain_cb8c59a9-b85b-4a29-9189-e248dceaa76e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_e89f9ee8-f357-4f71-9ca2-9224f7dea849" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_cb8c59a9-b85b-4a29-9189-e248dceaa76e" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_e89f9ee8-f357-4f71-9ca2-9224f7dea849" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/AdoptionofAccountingGuidanceTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#AdoptionofAccountingGuidanceTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AdoptionofAccountingGuidanceTables" xlink:type="extended" id="i05612a830d0341d083357ea01d56f49b_AdoptionofAccountingGuidanceTables">
<link:loc xlink:type="locator" xlink:label="loc_ppl_SummaryOfSignificantAccountingPoliciesLineItems_a7b97d28-cce6-4f3a-8409-be62aa65cf7a" xlink:href="ppl-20210331.xsd#ppl_SummaryOfSignificantAccountingPoliciesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_83660f56-e4b4-42df-8dda-eedc83b820dd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_SummaryOfSignificantAccountingPoliciesLineItems_a7b97d28-cce6-4f3a-8409-be62aa65cf7a" xlink:to="loc_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_83660f56-e4b4-42df-8dda-eedc83b820dd" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowTableTextBlock_5ef9017f-d35a-4406-b4ec-3b2b3d4260e0" xlink:href="ppl-20210331.xsd#ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_SummaryOfSignificantAccountingPoliciesLineItems_a7b97d28-cce6-4f3a-8409-be62aa65cf7a" xlink:to="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowTableTextBlock_5ef9017f-d35a-4406-b4ec-3b2b3d4260e0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SummaryOfSignificantAccountingPoliciesTable_4bd4944d-f2bc-4d3c-b50d-fbd547358fa9" xlink:href="ppl-20210331.xsd#ppl_SummaryOfSignificantAccountingPoliciesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_SummaryOfSignificantAccountingPoliciesLineItems_a7b97d28-cce6-4f3a-8409-be62aa65cf7a" xlink:to="loc_ppl_SummaryOfSignificantAccountingPoliciesTable_4bd4944d-f2bc-4d3c-b50d-fbd547358fa9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_bfadd28c-8dd6-46f7-9623-63e439366173" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_SummaryOfSignificantAccountingPoliciesTable_4bd4944d-f2bc-4d3c-b50d-fbd547358fa9" xlink:to="loc_dei_LegalEntityAxis_bfadd28c-8dd6-46f7-9623-63e439366173" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_bfadd28c-8dd6-46f7-9623-63e439366173_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_bfadd28c-8dd6-46f7-9623-63e439366173" xlink:to="loc_dei_EntityDomain_bfadd28c-8dd6-46f7-9623-63e439366173_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_5d098e01-6401-40ca-b422-239ed751fe50" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_bfadd28c-8dd6-46f7-9623-63e439366173" xlink:to="loc_dei_EntityDomain_5d098e01-6401-40ca-b422-239ed751fe50" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_db05e5e0-7a40-4f0d-af7f-4048c903d3c4" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5d098e01-6401-40ca-b422-239ed751fe50" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_db05e5e0-7a40-4f0d-af7f-4048c903d3c4" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_2e52eae3-6674-4cb5-9bf3-259fd2ab2159" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5d098e01-6401-40ca-b422-239ed751fe50" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_2e52eae3-6674-4cb5-9bf3-259fd2ab2159" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_a79ef919-6e75-40cd-b1be-4a5f26b86b49" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5d098e01-6401-40ca-b422-239ed751fe50" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_a79ef919-6e75-40cd-b1be-4a5f26b86b49" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_37b3ce14-89e9-4934-8920-db3d2af6081c" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5d098e01-6401-40ca-b422-239ed751fe50" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_37b3ce14-89e9-4934-8920-db3d2af6081c" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/SummaryofSignificantAccountingPoliciesDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#SummaryofSignificantAccountingPoliciesDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/SummaryofSignificantAccountingPoliciesDetails" xlink:type="extended" id="ic8bbf075fef445dea9e9ea852e6c2904_SummaryofSignificantAccountingPoliciesDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_SummaryOfSignificantAccountingPoliciesLineItems_99b6a520-63db-4812-a446-f596ed00f30d" xlink:href="ppl-20210331.xsd#ppl_SummaryOfSignificantAccountingPoliciesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_844e3658-4784-42d0-95b1-4d320449512c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_SummaryOfSignificantAccountingPoliciesLineItems_99b6a520-63db-4812-a446-f596ed00f30d" xlink:to="loc_us-gaap_Goodwill_844e3658-4784-42d0-95b1-4d320449512c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SummaryOfSignificantAccountingPoliciesTable_c29a7c6f-a603-4510-a5eb-65d56fc42241" xlink:href="ppl-20210331.xsd#ppl_SummaryOfSignificantAccountingPoliciesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_SummaryOfSignificantAccountingPoliciesLineItems_99b6a520-63db-4812-a446-f596ed00f30d" xlink:to="loc_ppl_SummaryOfSignificantAccountingPoliciesTable_c29a7c6f-a603-4510-a5eb-65d56fc42241" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_db9f23ca-92c0-4d26-b791-27e45935cc2d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_SummaryOfSignificantAccountingPoliciesTable_c29a7c6f-a603-4510-a5eb-65d56fc42241" xlink:to="loc_dei_LegalEntityAxis_db9f23ca-92c0-4d26-b791-27e45935cc2d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_db9f23ca-92c0-4d26-b791-27e45935cc2d_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_db9f23ca-92c0-4d26-b791-27e45935cc2d" xlink:to="loc_dei_EntityDomain_db9f23ca-92c0-4d26-b791-27e45935cc2d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_19b984ca-0256-4c2e-b06a-18eeeddc7aab" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_db9f23ca-92c0-4d26-b791-27e45935cc2d" xlink:to="loc_dei_EntityDomain_19b984ca-0256-4c2e-b06a-18eeeddc7aab" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_22339517-27cd-4e40-a7d0-fc766dab6659" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_19b984ca-0256-4c2e-b06a-18eeeddc7aab" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_22339517-27cd-4e40-a7d0-fc766dab6659" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_18e9fb05-706a-4b75-8df9-aec1d9b3dac2" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_19b984ca-0256-4c2e-b06a-18eeeddc7aab" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_18e9fb05-706a-4b75-8df9-aec1d9b3dac2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_f5d0a418-c60c-435c-8e62-748e2f86835c" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_19b984ca-0256-4c2e-b06a-18eeeddc7aab" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_f5d0a418-c60c-435c-8e62-748e2f86835c" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_7507918f-cd9c-4ed9-8522-ce82fe55dd8d" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_19b984ca-0256-4c2e-b06a-18eeeddc7aab" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_7507918f-cd9c-4ed9-8522-ce82fe55dd8d" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_ebb5be7d-f7c8-451a-8157-cf55181cd359" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_SummaryOfSignificantAccountingPoliciesTable_c29a7c6f-a603-4510-a5eb-65d56fc42241" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_ebb5be7d-f7c8-451a-8157-cf55181cd359" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_ebb5be7d-f7c8-451a-8157-cf55181cd359_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_ebb5be7d-f7c8-451a-8157-cf55181cd359" xlink:to="loc_us-gaap_SegmentDomain_ebb5be7d-f7c8-451a-8157-cf55181cd359_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_8caf6712-873a-4482-a8da-b4b95395f22c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_ebb5be7d-f7c8-451a-8157-cf55181cd359" xlink:to="loc_us-gaap_SegmentDomain_8caf6712-873a-4482-a8da-b4b95395f22c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UnitedKingdomRegulatedMember_da72164a-8d82-44ca-8c98-e78fbaeda5ce" xlink:href="ppl-20210331.xsd#ppl_UnitedKingdomRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_8caf6712-873a-4482-a8da-b4b95395f22c" xlink:to="loc_ppl_UnitedKingdomRegulatedMember_da72164a-8d82-44ca-8c98-e78fbaeda5ce" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateMember_0664bf8e-1982-462b-ac76-4c529026ddd1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CorporateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_8caf6712-873a-4482-a8da-b4b95395f22c" xlink:to="loc_us-gaap_CorporateMember_0664bf8e-1982-462b-ac76-4c529026ddd1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_e99119be-0161-417a-8ce4-447ee4a21c34" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_SummaryOfSignificantAccountingPoliciesTable_c29a7c6f-a603-4510-a5eb-65d56fc42241" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_e99119be-0161-417a-8ce4-447ee4a21c34" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_e99119be-0161-417a-8ce4-447ee4a21c34_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_e99119be-0161-417a-8ce4-447ee4a21c34" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_e99119be-0161-417a-8ce4-447ee4a21c34_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_8afb742a-0203-4779-b0df-ffeea15be17c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_e99119be-0161-417a-8ce4-447ee4a21c34" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_8afb742a-0203-4779-b0df-ffeea15be17c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentAssetsMember_f7ddbc38-7321-40ff-bf0c-a4b612711501" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNoncurrentAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_8afb742a-0203-4779-b0df-ffeea15be17c" xlink:to="loc_us-gaap_OtherNoncurrentAssetsMember_f7ddbc38-7321-40ff-bf0c-a4b612711501" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsForChangeInAccountingPrincipleAxis_36bdea96-6291-43d9-aa32-09b1b43a5a57" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsForChangeInAccountingPrincipleAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_SummaryOfSignificantAccountingPoliciesTable_c29a7c6f-a603-4510-a5eb-65d56fc42241" xlink:to="loc_us-gaap_AdjustmentsForChangeInAccountingPrincipleAxis_36bdea96-6291-43d9-aa32-09b1b43a5a57" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ChangeInAccountingPrincipleMember_36bdea96-6291-43d9-aa32-09b1b43a5a57_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ChangeInAccountingPrincipleMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AdjustmentsForChangeInAccountingPrincipleAxis_36bdea96-6291-43d9-aa32-09b1b43a5a57" xlink:to="loc_us-gaap_ChangeInAccountingPrincipleMember_36bdea96-6291-43d9-aa32-09b1b43a5a57_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ChangeInAccountingPrincipleMember_a72de25f-27fc-4960-a672-6659870b293c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ChangeInAccountingPrincipleMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AdjustmentsForChangeInAccountingPrincipleAxis_36bdea96-6291-43d9-aa32-09b1b43a5a57" xlink:to="loc_us-gaap_ChangeInAccountingPrincipleMember_a72de25f-27fc-4960-a672-6659870b293c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowLineItems_2cf68f76-f7cd-4973-8383-fb90b951697c" xlink:href="ppl-20210331.xsd#ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_148a9eec-fc9a-4149-b222-25602d0de18a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowLineItems_2cf68f76-f7cd-4973-8383-fb90b951697c" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_148a9eec-fc9a-4149-b222-25602d0de18a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_08cadd46-b6ec-41dd-ae52-af5b24e2b60a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowLineItems_2cf68f76-f7cd-4973-8383-fb90b951697c" xlink:to="loc_us-gaap_RestrictedCashCurrent_08cadd46-b6ec-41dd-ae52-af5b24e2b60a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_d860bdb6-08ee-4734-83cf-3146e64942a8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowLineItems_2cf68f76-f7cd-4973-8383-fb90b951697c" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_d860bdb6-08ee-4734-83cf-3146e64942a8" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_cbd60bed-0937-42d8-bbb6-b839cde28677" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowLineItems_2cf68f76-f7cd-4973-8383-fb90b951697c" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_cbd60bed-0937-42d8-bbb6-b839cde28677" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowTable_cb0a34a1-635b-41e3-9508-784724d08959" xlink:href="ppl-20210331.xsd#ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowLineItems_2cf68f76-f7cd-4973-8383-fb90b951697c" xlink:to="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowTable_cb0a34a1-635b-41e3-9508-784724d08959" xlink:type="arc" order="2" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_47a470b5-a122-43bd-990a-e16d67d3945c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_ReconciliationofCashCashEquivalentsandRestrictedCashfromtheBalanceSheettoCashFlowTable_cb0a34a1-635b-41e3-9508-784724d08959" xlink:to="loc_dei_LegalEntityAxis_47a470b5-a122-43bd-990a-e16d67d3945c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_47a470b5-a122-43bd-990a-e16d67d3945c_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_61ea85c2-acce-412d-bc7f-3d1d5ed11f20" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_c600922a-d4c1-464b-8364-ad0505a6bc79" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_0c131953-bdd1-42b1-b2e3-60a204add817" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_b0c2eb29-4437-4e7f-b48c-cc7fb34d8dd3" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_9b3c6a59-d23d-4aea-8e1f-20b7c09e9033" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_a04e58f6-a858-4d36-b165-907ca0e5647a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_96c5388d-f01c-41c4-b723-03cf2bae3d84" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_a04e58f6-a858-4d36-b165-907ca0e5647a" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_96c5388d-f01c-41c4-b723-03cf2bae3d84" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLossesExpensed_0d8fddda-2ec4-48cb-a097-189990f053d8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProvisionForLoanLossesExpensed"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_a04e58f6-a858-4d36-b165-907ca0e5647a" xlink:to="loc_us-gaap_ProvisionForLoanLossesExpensed_0d8fddda-2ec4-48cb-a097-189990f053d8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_4c8d77a8-d35e-4713-b86d-45da63564073" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_a04e58f6-a858-4d36-b165-907ca0e5647a" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_4c8d77a8-d35e-4713-b86d-45da63564073" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_b89f4498-f118-4646-9608-f162788ded58" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_a04e58f6-a858-4d36-b165-907ca0e5647a" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_b89f4498-f118-4646-9608-f162788ded58" xlink:type="arc" order="3" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_2de954bd-efb6-45ec-a934-b55704d31c6e" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_b89f4498-f118-4646-9608-f162788ded58" xlink:to="loc_dei_LegalEntityAxis_2de954bd-efb6-45ec-a934-b55704d31c6e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_2de954bd-efb6-45ec-a934-b55704d31c6e_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_5e718512-b3e2-4ea2-8296-7ecbe0ce5eb4" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_d665e702-4f3a-410c-b6fb-36a99b923e9f" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_646eb013-b2c0-40b7-a4a2-1e830019bcff" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_cd9347b9-c798-45fe-b21d-e5a03d282592" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_f9ad07da-2737-4741-b14e-eb34c61fbe06" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_bd319307-959a-4718-abdf-c4b972a556cd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_b89f4498-f118-4646-9608-f162788ded58" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_bd319307-959a-4718-abdf-c4b972a556cd" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_bd319307-959a-4718-abdf-c4b972a556cd_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_bd319307-959a-4718-abdf-c4b972a556cd" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_bd319307-959a-4718-abdf-c4b972a556cd_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_e3eca56f-84cf-4004-9222-bf010948455e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_bd319307-959a-4718-abdf-c4b972a556cd" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_e3eca56f-84cf-4004-9222-bf010948455e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AccountsReceivableCustomerandUnbilledRevenueMember_403993a5-6db2-442a-90de-df785af00c5f" xlink:href="ppl-20210331.xsd#ppl_AccountsReceivableCustomerandUnbilledRevenueMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_e3eca56f-84cf-4004-9222-bf010948455e" xlink:to="loc_ppl_AccountsReceivableCustomerandUnbilledRevenueMember_403993a5-6db2-442a-90de-df785af00c5f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherClassofFinancingReceivableMember_617f4496-5405-4cf9-92da-8006cd5d5b45" xlink:href="ppl-20210331.xsd#ppl_OtherClassofFinancingReceivableMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_e3eca56f-84cf-4004-9222-bf010948455e" xlink:to="loc_ppl_OtherClassofFinancingReceivableMember_617f4496-5405-4cf9-92da-8006cd5d5b45" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_41a7e044-3fc3-4fa6-b6e2-d9e02ab377c0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_e7b07cc1-61f8-4fb0-9492-357274c86fda" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_41a7e044-3fc3-4fa6-b6e2-d9e02ab377c0" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_e7b07cc1-61f8-4fb0-9492-357274c86fda" xlink:type="arc" order="4" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_8d9bf85b-0a0c-455b-bbfe-a43934383bef" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_e7b07cc1-61f8-4fb0-9492-357274c86fda" xlink:to="loc_dei_LegalEntityAxis_8d9bf85b-0a0c-455b-bbfe-a43934383bef" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_8d9bf85b-0a0c-455b-bbfe-a43934383bef_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_51cf6b48-98fb-4625-94e6-1389787c10a9" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_b19af395-805e-4db0-ab79-34fdbbeb05c2" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_cfe92266-3d61-4e77-9ec7-e8ab844ab379" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_abdbfeb9-3b31-4834-8e97-9d85246b1bb7" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_c9adf7ed-6850-4341-9d74-9d0d1a4a2a96" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/SegmentandRelatedInformation" xlink:type="simple" xlink:href="ppl-20210331.xsd#SegmentandRelatedInformation"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/SegmentandRelatedInformation" xlink:type="extended" id="i5131598ab5e04d729c1f7dc57cf58d18_SegmentandRelatedInformation"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/SegmentandRelatedInformationTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#SegmentandRelatedInformationTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/SegmentandRelatedInformationTables" xlink:type="extended" id="iaab9aba7c72d47749ae8a224c3ab30c9_SegmentandRelatedInformationTables"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/SegmentandRelatedInformationDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#SegmentandRelatedInformationDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/SegmentandRelatedInformationDetails" xlink:type="extended" id="i77b59837ac4c4f05a03d1649bc891b49_SegmentandRelatedInformationDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_3a2a3a1f-986d-4b7b-86ca-b9f8bd5c2c6d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentReportingInformationLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationProfitLossAbstract_ee81d31c-603b-41e0-be4f-0d70831dfe50" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentReportingInformationProfitLossAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_3a2a3a1f-986d-4b7b-86ca-b9f8bd5c2c6d" xlink:to="loc_us-gaap_SegmentReportingInformationProfitLossAbstract_ee81d31c-603b-41e0-be4f-0d70831dfe50" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_529da772-b05e-425e-a0dc-486e19f4a421" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Revenues"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationProfitLossAbstract_ee81d31c-603b-41e0-be4f-0d70831dfe50" xlink:to="loc_us-gaap_Revenues_529da772-b05e-425e-a0dc-486e19f4a421" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_b265b6bc-5a4e-4e75-9324-27dd1f702e60" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationProfitLossAbstract_ee81d31c-603b-41e0-be4f-0d70831dfe50" xlink:to="loc_us-gaap_NetIncomeLoss_b265b6bc-5a4e-4e75-9324-27dd1f702e60" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_FinancingCostsAllocatedToSegmentNetOfTax_4c54ba93-6efc-40bf-a39c-b7dee7fa3538" xlink:href="ppl-20210331.xsd#ppl_FinancingCostsAllocatedToSegmentNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationProfitLossAbstract_ee81d31c-603b-41e0-be4f-0d70831dfe50" xlink:to="loc_ppl_FinancingCostsAllocatedToSegmentNetOfTax_4c54ba93-6efc-40bf-a39c-b7dee7fa3538" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IncomeTaxesAllocatedToSegment_1a6af068-6f65-4081-b512-cb6198974550" xlink:href="ppl-20210331.xsd#ppl_IncomeTaxesAllocatedToSegment"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationProfitLossAbstract_ee81d31c-603b-41e0-be4f-0d70831dfe50" xlink:to="loc_ppl_IncomeTaxesAllocatedToSegment_1a6af068-6f65-4081-b512-cb6198974550" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SegmentReportingInformationBalanceSheetDataAbstract_bfd7502a-3708-4570-b1d6-ae1a2e01d263" xlink:href="ppl-20210331.xsd#ppl_SegmentReportingInformationBalanceSheetDataAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_3a2a3a1f-986d-4b7b-86ca-b9f8bd5c2c6d" xlink:to="loc_ppl_SegmentReportingInformationBalanceSheetDataAbstract_bfd7502a-3708-4570-b1d6-ae1a2e01d263" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_5b22f5bb-1059-49c9-8d1c-183d000fac57" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Assets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_SegmentReportingInformationBalanceSheetDataAbstract_bfd7502a-3708-4570-b1d6-ae1a2e01d263" xlink:to="loc_us-gaap_Assets_5b22f5bb-1059-49c9-8d1c-183d000fac57" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_1f1fd08a-9cb3-4235-86dc-f6e947eeda52" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentReportingInformationAdditionalInformationAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_3a2a3a1f-986d-4b7b-86ca-b9f8bd5c2c6d" xlink:to="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_1f1fd08a-9cb3-4235-86dc-f6e947eeda52" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SegmentAssetsPropertyPlantAndEquipmentNotSubjectToEffectsOfCertainTypeOfRegulation_f2d5ec77-290e-4c3d-9711-e0aa9d3437f9" xlink:href="ppl-20210331.xsd#ppl_SegmentAssetsPropertyPlantAndEquipmentNotSubjectToEffectsOfCertainTypeOfRegulation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_1f1fd08a-9cb3-4235-86dc-f6e947eeda52" xlink:to="loc_ppl_SegmentAssetsPropertyPlantAndEquipmentNotSubjectToEffectsOfCertainTypeOfRegulation_f2d5ec77-290e-4c3d-9711-e0aa9d3437f9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_4f6430ea-6000-47b9-93ed-2e88b47f7d33" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_1f1fd08a-9cb3-4235-86dc-f6e947eeda52" xlink:to="loc_us-gaap_Goodwill_4f6430ea-6000-47b9-93ed-2e88b47f7d33" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_4e93aa3e-c05e-4483-93b9-29bc77c67b98" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NumberOfReportableSegments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_1f1fd08a-9cb3-4235-86dc-f6e947eeda52" xlink:to="loc_us-gaap_NumberOfReportableSegments_4e93aa3e-c05e-4483-93b9-29bc77c67b98" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfOperatingSegments_4a363888-28a3-428d-a7ec-5b14be28fbb5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NumberOfOperatingSegments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_1f1fd08a-9cb3-4235-86dc-f6e947eeda52" xlink:to="loc_us-gaap_NumberOfOperatingSegments_4a363888-28a3-428d-a7ec-5b14be28fbb5" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_85ba9f53-86ae-4b71-8d4f-c2b9dc522e02" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_3a2a3a1f-986d-4b7b-86ca-b9f8bd5c2c6d" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_85ba9f53-86ae-4b71-8d4f-c2b9dc522e02" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_fbdf68ad-6175-4a74-932a-f8cb27cda4ca" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_85ba9f53-86ae-4b71-8d4f-c2b9dc522e02" xlink:to="loc_dei_LegalEntityAxis_fbdf68ad-6175-4a74-932a-f8cb27cda4ca" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_fbdf68ad-6175-4a74-932a-f8cb27cda4ca_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_fbdf68ad-6175-4a74-932a-f8cb27cda4ca" xlink:to="loc_dei_EntityDomain_fbdf68ad-6175-4a74-932a-f8cb27cda4ca_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_48e1091f-9bc3-44d4-803e-d2b14ef5baeb" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_fbdf68ad-6175-4a74-932a-f8cb27cda4ca" xlink:to="loc_dei_EntityDomain_48e1091f-9bc3-44d4-803e-d2b14ef5baeb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_e27bce1a-65c7-4868-94b9-ddf43b03ac79" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_48e1091f-9bc3-44d4-803e-d2b14ef5baeb" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_e27bce1a-65c7-4868-94b9-ddf43b03ac79" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_a4bcec97-7a3e-4ef3-ac87-8e31997d51fc" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_48e1091f-9bc3-44d4-803e-d2b14ef5baeb" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_a4bcec97-7a3e-4ef3-ac87-8e31997d51fc" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_a6777dcc-b2f6-4ccf-b0b0-d26491fccec5" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_48e1091f-9bc3-44d4-803e-d2b14ef5baeb" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_a6777dcc-b2f6-4ccf-b0b0-d26491fccec5" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_4b64809d-331d-46f9-845c-ae77dc90a46e" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_48e1091f-9bc3-44d4-803e-d2b14ef5baeb" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_4b64809d-331d-46f9-845c-ae77dc90a46e" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_a5411750-7582-4905-ab5c-ea53d233ebfd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_85ba9f53-86ae-4b71-8d4f-c2b9dc522e02" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_a5411750-7582-4905-ab5c-ea53d233ebfd" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_a5411750-7582-4905-ab5c-ea53d233ebfd_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_a5411750-7582-4905-ab5c-ea53d233ebfd" xlink:to="loc_us-gaap_SegmentDomain_a5411750-7582-4905-ab5c-ea53d233ebfd_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_2cbd7bcb-a3be-4ea2-bccd-8fc462486da0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_a5411750-7582-4905-ab5c-ea53d233ebfd" xlink:to="loc_us-gaap_SegmentDomain_2cbd7bcb-a3be-4ea2-bccd-8fc462486da0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UnitedKingdomRegulatedMember_dcacd5c3-05a2-40bd-8022-58dc4898cf4d" xlink:href="ppl-20210331.xsd#ppl_UnitedKingdomRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_2cbd7bcb-a3be-4ea2-bccd-8fc462486da0" xlink:to="loc_ppl_UnitedKingdomRegulatedMember_dcacd5c3-05a2-40bd-8022-58dc4898cf4d" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyRegulatedMember_51a0d4f5-1065-44e6-8de0-3c91660a5048" xlink:href="ppl-20210331.xsd#ppl_KentuckyRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_2cbd7bcb-a3be-4ea2-bccd-8fc462486da0" xlink:to="loc_ppl_KentuckyRegulatedMember_51a0d4f5-1065-44e6-8de0-3c91660a5048" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PennsylvaniaRegulatedMember_08263adc-325e-4dbe-ba41-22bea57456c1" xlink:href="ppl-20210331.xsd#ppl_PennsylvaniaRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_2cbd7bcb-a3be-4ea2-bccd-8fc462486da0" xlink:to="loc_ppl_PennsylvaniaRegulatedMember_08263adc-325e-4dbe-ba41-22bea57456c1" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateMember_51b355fa-da48-4440-8448-330e321e7ccd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CorporateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_2cbd7bcb-a3be-4ea2-bccd-8fc462486da0" xlink:to="loc_us-gaap_CorporateMember_51b355fa-da48-4440-8448-330e321e7ccd" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DiscontinuedOperationsSegmentMember_7540d255-e29a-4bb3-9d1f-fe7d8b42f123" xlink:href="ppl-20210331.xsd#ppl_DiscontinuedOperationsSegmentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_2cbd7bcb-a3be-4ea2-bccd-8fc462486da0" xlink:to="loc_ppl_DiscontinuedOperationsSegmentMember_7540d255-e29a-4bb3-9d1f-fe7d8b42f123" xlink:type="arc" order="4"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/RevenuefromContractswithCustomers" xlink:type="simple" xlink:href="ppl-20210331.xsd#RevenuefromContractswithCustomers"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/RevenuefromContractswithCustomers" xlink:type="extended" id="ie4fa5b677eb94ac3bc37d1936f40674e_RevenuefromContractswithCustomers"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/RevenuefromContractswithCustomersPolicies" xlink:type="simple" xlink:href="ppl-20210331.xsd#RevenuefromContractswithCustomersPolicies"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/RevenuefromContractswithCustomersPolicies" xlink:type="extended" id="i54fd8a3e5caf479a998b2eff48bc551b_RevenuefromContractswithCustomersPolicies"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/RevenuefromContractswithCustomersTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#RevenuefromContractswithCustomersTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/RevenuefromContractswithCustomersTables" xlink:type="extended" id="i562f07d0a70a464fac46086f47bec7f3_RevenuefromContractswithCustomersTables">
<link:loc xlink:type="locator" xlink:label="loc_ppl_RevenuefromcontractswithcustomersLineItems_6975d15f-0894-422d-abe6-e566703bc5ec" xlink:href="ppl-20210331.xsd#ppl_RevenuefromcontractswithcustomersLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ReconciliationofrevenuefromcontractswithcustomersTableTextBlock_05b7ff5e-f2d1-4651-a966-482845f2f6ad" xlink:href="ppl-20210331.xsd#ppl_ReconciliationofrevenuefromcontractswithcustomersTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RevenuefromcontractswithcustomersLineItems_6975d15f-0894-422d-abe6-e566703bc5ec" xlink:to="loc_ppl_ReconciliationofrevenuefromcontractswithcustomersTableTextBlock_05b7ff5e-f2d1-4651-a966-482845f2f6ad" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_cba36557-6d26-45f0-b3c0-e98f9d8ed4f5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RevenuefromcontractswithcustomersLineItems_6975d15f-0894-422d-abe6-e566703bc5ec" xlink:to="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_cba36557-6d26-45f0-b3c0-e98f9d8ed4f5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CreditlossrecognizedfromcontractwithcustomerTableTextBlock_73f13405-d7a5-485b-a9e0-169a9557a0a5" xlink:href="ppl-20210331.xsd#ppl_CreditlossrecognizedfromcontractwithcustomerTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RevenuefromcontractswithcustomersLineItems_6975d15f-0894-422d-abe6-e566703bc5ec" xlink:to="loc_ppl_CreditlossrecognizedfromcontractwithcustomerTableTextBlock_73f13405-d7a5-485b-a9e0-169a9557a0a5" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_761a0f5c-a50e-42cc-af41-912089452959" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RevenuefromcontractswithcustomersLineItems_6975d15f-0894-422d-abe6-e566703bc5ec" xlink:to="loc_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_761a0f5c-a50e-42cc-af41-912089452959" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RevenuefromcontractswithcustomersTable_a735d1aa-f83e-4065-9dfd-4badf670b821" xlink:href="ppl-20210331.xsd#ppl_RevenuefromcontractswithcustomersTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_RevenuefromcontractswithcustomersLineItems_6975d15f-0894-422d-abe6-e566703bc5ec" xlink:to="loc_ppl_RevenuefromcontractswithcustomersTable_a735d1aa-f83e-4065-9dfd-4badf670b821" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_ead487f8-16f8-4f1f-8728-8bf93efd988c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RevenuefromcontractswithcustomersTable_a735d1aa-f83e-4065-9dfd-4badf670b821" xlink:to="loc_dei_LegalEntityAxis_ead487f8-16f8-4f1f-8728-8bf93efd988c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_ead487f8-16f8-4f1f-8728-8bf93efd988c_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_ead487f8-16f8-4f1f-8728-8bf93efd988c" xlink:to="loc_dei_EntityDomain_ead487f8-16f8-4f1f-8728-8bf93efd988c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_0db89ac4-690f-424a-8940-55a7848b634e" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_ead487f8-16f8-4f1f-8728-8bf93efd988c" xlink:to="loc_dei_EntityDomain_0db89ac4-690f-424a-8940-55a7848b634e" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/RevenuefromContractswithCustomersDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#RevenuefromContractswithCustomersDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/RevenuefromContractswithCustomersDetails" xlink:type="extended" id="id28c540d39aa446194b64491c283b11b_RevenuefromContractswithCustomersDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_f6e87dde-45a9-41ac-866e-446af5b66f0a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_ae612274-8d7b-429a-a82e-b5c63f88b271" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_f6e87dde-45a9-41ac-866e-446af5b66f0a" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_ae612274-8d7b-429a-a82e-b5c63f88b271" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_9af0d7f5-fc60-4b76-8a6e-f014c5093225" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_f6e87dde-45a9-41ac-866e-446af5b66f0a" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_9af0d7f5-fc60-4b76-8a6e-f014c5093225" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_1dbc9949-54d5-4f7c-ad38-046009df1d11" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_f6e87dde-45a9-41ac-866e-446af5b66f0a" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_1dbc9949-54d5-4f7c-ad38-046009df1d11" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_1dbc9949-54d5-4f7c-ad38-046009df1d11" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c" xlink:to="loc_us-gaap_SegmentDomain_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c" xlink:to="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PennsylvaniaRegulatedMember_d0f7ffd5-fcf8-4ba6-b973-b35dc812587f" xlink:href="ppl-20210331.xsd#ppl_PennsylvaniaRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:to="loc_ppl_PennsylvaniaRegulatedMember_d0f7ffd5-fcf8-4ba6-b973-b35dc812587f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UnitedKingdomRegulatedMember_6c697708-0d80-4426-91f0-cc1539506e20" xlink:href="ppl-20210331.xsd#ppl_UnitedKingdomRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:to="loc_ppl_UnitedKingdomRegulatedMember_6c697708-0d80-4426-91f0-cc1539506e20" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyRegulatedMember_0f1f2e65-77a3-4f9f-8521-856c0d514276" xlink:href="ppl-20210331.xsd#ppl_KentuckyRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:to="loc_ppl_KentuckyRegulatedMember_0f1f2e65-77a3-4f9f-8521-856c0d514276" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateMember_0dd2f1c6-c640-4aea-8e9a-5c8fd4dc4dba" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CorporateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:to="loc_us-gaap_CorporateMember_0dd2f1c6-c640-4aea-8e9a-5c8fd4dc4dba" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_e0d494c6-676b-4108-87ef-8293035a77a9" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_StatementScenarioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_1dbc9949-54d5-4f7c-ad38-046009df1d11" xlink:to="loc_srt_StatementScenarioAxis_e0d494c6-676b-4108-87ef-8293035a77a9" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_e0d494c6-676b-4108-87ef-8293035a77a9_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_e0d494c6-676b-4108-87ef-8293035a77a9" xlink:to="loc_srt_ScenarioUnspecifiedDomain_e0d494c6-676b-4108-87ef-8293035a77a9_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_b3fede44-b4c6-4ede-b7c8-54ee327f5213" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_e0d494c6-676b-4108-87ef-8293035a77a9" xlink:to="loc_srt_ScenarioUnspecifiedDomain_b3fede44-b4c6-4ede-b7c8-54ee327f5213" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_f4b6779a-a24d-4f59-a8d1-c1317f815187" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioForecastMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_b3fede44-b4c6-4ede-b7c8-54ee327f5213" xlink:to="loc_srt_ScenarioForecastMember_f4b6779a-a24d-4f59-a8d1-c1317f815187" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_eedc7eb6-fe64-412d-ba7b-182f3b998b65" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_1dbc9949-54d5-4f7c-ad38-046009df1d11" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_eedc7eb6-fe64-412d-ba7b-182f3b998b65" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RevenuefromcontractswithcustomersLineItems_3aaab84d-ac8a-4a23-b1db-cec37875cedb" xlink:href="ppl-20210331.xsd#ppl_RevenuefromcontractswithcustomersLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ReconciliationofrevenuefromcontactswithcustomersAbstract_5865bc48-1406-47e6-bd77-6c5f23ec6be9" xlink:href="ppl-20210331.xsd#ppl_ReconciliationofrevenuefromcontactswithcustomersAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RevenuefromcontractswithcustomersLineItems_3aaab84d-ac8a-4a23-b1db-cec37875cedb" xlink:to="loc_ppl_ReconciliationofrevenuefromcontactswithcustomersAbstract_5865bc48-1406-47e6-bd77-6c5f23ec6be9" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_7cbd3e1d-e699-4926-b525-2e96c3aa06d1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Revenues"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ReconciliationofrevenuefromcontactswithcustomersAbstract_5865bc48-1406-47e6-bd77-6c5f23ec6be9" xlink:to="loc_us-gaap_Revenues_7cbd3e1d-e699-4926-b525-2e96c3aa06d1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AlternativeRevenuePrograms_3ae93357-e6f6-45ae-81a5-661ce676ca52" xlink:href="ppl-20210331.xsd#ppl_AlternativeRevenuePrograms"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ReconciliationofrevenuefromcontactswithcustomersAbstract_5865bc48-1406-47e6-bd77-6c5f23ec6be9" xlink:to="loc_ppl_AlternativeRevenuePrograms_3ae93357-e6f6-45ae-81a5-661ce676ca52" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherRevenue_d6002831-8429-4374-a4ab-9a7f9c6efc90" xlink:href="ppl-20210331.xsd#ppl_OtherRevenue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ReconciliationofrevenuefromcontactswithcustomersAbstract_5865bc48-1406-47e6-bd77-6c5f23ec6be9" xlink:to="loc_ppl_OtherRevenue_d6002831-8429-4374-a4ab-9a7f9c6efc90" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueAbstract_c78f9557-e9aa-41d0-b8f9-601d6183dfe0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisaggregationOfRevenueAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RevenuefromcontractswithcustomersLineItems_3aaab84d-ac8a-4a23-b1db-cec37875cedb" xlink:to="loc_us-gaap_DisaggregationOfRevenueAbstract_c78f9557-e9aa-41d0-b8f9-601d6183dfe0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_2389699c-b222-4329-b958-3866a1d17b29" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueAbstract_c78f9557-e9aa-41d0-b8f9-601d6183dfe0" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_2389699c-b222-4329-b958-3866a1d17b29" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetAndLiabilityAbstract_b58847c1-b8e8-4eb1-8ac6-0eba6513f062" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetAndLiabilityAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RevenuefromcontractswithcustomersLineItems_3aaab84d-ac8a-4a23-b1db-cec37875cedb" xlink:to="loc_us-gaap_ContractWithCustomerAssetAndLiabilityAbstract_b58847c1-b8e8-4eb1-8ac6-0eba6513f062" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_ac7a81f9-ac80-4ff3-8b69-064608c0ccff" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerAssetAndLiabilityAbstract_b58847c1-b8e8-4eb1-8ac6-0eba6513f062" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_ac7a81f9-ac80-4ff3-8b69-064608c0ccff" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_807396e5-b98e-4000-ad1b-965dd54a6384" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiability"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerAssetAndLiabilityAbstract_b58847c1-b8e8-4eb1-8ac6-0eba6513f062" xlink:to="loc_us-gaap_ContractWithCustomerLiability_807396e5-b98e-4000-ad1b-965dd54a6384" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_6ed85571-b9e6-4dde-8287-2660bda97512" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerAssetAndLiabilityAbstract_b58847c1-b8e8-4eb1-8ac6-0eba6513f062" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_6ed85571-b9e6-4dde-8287-2660bda97512" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RevenueReserveForROEChallenge_3fabc4e2-67bc-416b-9dae-bc33ec396c5a" xlink:href="ppl-20210331.xsd#ppl_RevenueReserveForROEChallenge"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RevenuefromcontractswithcustomersLineItems_3aaab84d-ac8a-4a23-b1db-cec37875cedb" xlink:to="loc_ppl_RevenueReserveForROEChallenge_3fabc4e2-67bc-416b-9dae-bc33ec396c5a" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RevenuefromcontractswithcustomersTable_d7cc9d75-ef3a-4a0b-a846-1517363445f4" xlink:href="ppl-20210331.xsd#ppl_RevenuefromcontractswithcustomersTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_RevenuefromcontractswithcustomersLineItems_3aaab84d-ac8a-4a23-b1db-cec37875cedb" xlink:to="loc_ppl_RevenuefromcontractswithcustomersTable_d7cc9d75-ef3a-4a0b-a846-1517363445f4" xlink:type="arc" order="2" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_52873904-8df4-458a-9c15-7aa73a5e11be" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RevenuefromcontractswithcustomersTable_d7cc9d75-ef3a-4a0b-a846-1517363445f4" xlink:to="loc_dei_LegalEntityAxis_52873904-8df4-458a-9c15-7aa73a5e11be" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_52873904-8df4-458a-9c15-7aa73a5e11be_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_52873904-8df4-458a-9c15-7aa73a5e11be" xlink:to="loc_dei_EntityDomain_52873904-8df4-458a-9c15-7aa73a5e11be_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_dbe96a07-57c6-4247-9493-c4a29087499b" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_52873904-8df4-458a-9c15-7aa73a5e11be" xlink:to="loc_dei_EntityDomain_dbe96a07-57c6-4247-9493-c4a29087499b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_e3a88b51-f974-43c4-bf7a-dfa998e87d13" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dbe96a07-57c6-4247-9493-c4a29087499b" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_e3a88b51-f974-43c4-bf7a-dfa998e87d13" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_9ef278a8-49c3-411e-aa59-cdec3543b1e1" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dbe96a07-57c6-4247-9493-c4a29087499b" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_9ef278a8-49c3-411e-aa59-cdec3543b1e1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_3345bd0e-eac9-4964-b1d6-fa0a54b68ab0" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dbe96a07-57c6-4247-9493-c4a29087499b" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_3345bd0e-eac9-4964-b1d6-fa0a54b68ab0" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_518be276-d867-4fc4-a806-512643c156c0" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dbe96a07-57c6-4247-9493-c4a29087499b" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_518be276-d867-4fc4-a806-512643c156c0" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_cef9a480-7947-4b14-bbf3-46801d2fc918" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RevenuefromcontractswithcustomersTable_d7cc9d75-ef3a-4a0b-a846-1517363445f4" xlink:to="loc_ppl_ByCompanyAxis_cef9a480-7947-4b14-bbf3-46801d2fc918" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_cef9a480-7947-4b14-bbf3-46801d2fc918_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_cef9a480-7947-4b14-bbf3-46801d2fc918" xlink:to="loc_ppl_ByCompanyDomain_cef9a480-7947-4b14-bbf3-46801d2fc918_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_a1760752-054e-477c-ba96-0893ffa1a55f" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_cef9a480-7947-4b14-bbf3-46801d2fc918" xlink:to="loc_ppl_ByCompanyDomain_a1760752-054e-477c-ba96-0893ffa1a55f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_0fef12a3-e2e2-4486-a73e-8475498930a2" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_a1760752-054e-477c-ba96-0893ffa1a55f" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_0fef12a3-e2e2-4486-a73e-8475498930a2" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_d3e15460-301d-49ca-823a-20e5bad87d3f" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_a1760752-054e-477c-ba96-0893ffa1a55f" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_d3e15460-301d-49ca-823a-20e5bad87d3f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_2edb03ad-2b06-4945-8f05-ebd113323bc2" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_a1760752-054e-477c-ba96-0893ffa1a55f" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_2edb03ad-2b06-4945-8f05-ebd113323bc2" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_f215f51f-503d-4e8b-965b-f5a819247219" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RevenuefromcontractswithcustomersTable_d7cc9d75-ef3a-4a0b-a846-1517363445f4" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_f215f51f-503d-4e8b-965b-f5a819247219" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_f215f51f-503d-4e8b-965b-f5a819247219_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_74093ee2-ab13-481f-927e-3b5381210936" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PennsylvaniaRegulatedMember_53e6357f-b07f-443a-87b8-379e8121ba0a" xlink:href="ppl-20210331.xsd#ppl_PennsylvaniaRegulatedMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyRegulatedMember_573fc7be-b5f4-4ab3-b24a-3586cd42dfad" xlink:href="ppl-20210331.xsd#ppl_KentuckyRegulatedMember"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_b153abec-30b7-4bee-b640-146901d6bb9c" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MajorCustomersAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RevenuefromcontractswithcustomersTable_d7cc9d75-ef3a-4a0b-a846-1517363445f4" xlink:to="loc_srt_MajorCustomersAxis_b153abec-30b7-4bee-b640-146901d6bb9c" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_b153abec-30b7-4bee-b640-146901d6bb9c_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_NameOfMajorCustomerDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_b153abec-30b7-4bee-b640-146901d6bb9c" xlink:to="loc_srt_NameOfMajorCustomerDomain_b153abec-30b7-4bee-b640-146901d6bb9c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_NameOfMajorCustomerDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_b153abec-30b7-4bee-b640-146901d6bb9c" xlink:to="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LicensedenergysupplierMember_9ccd695b-811d-469c-89a5-c4a77cd28bf6" xlink:href="ppl-20210331.xsd#ppl_LicensedenergysupplierMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:to="loc_ppl_LicensedenergysupplierMember_9ccd695b-811d-469c-89a5-c4a77cd28bf6" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ResidentialMember_6b821d20-fa56-462a-8859-32fc4fd1e415" xlink:href="ppl-20210331.xsd#ppl_ResidentialMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:to="loc_ppl_ResidentialMember_6b821d20-fa56-462a-8859-32fc4fd1e415" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CommercialMember_38f64b22-310f-47e5-94a6-18899cbe30f4" xlink:href="ppl-20210331.xsd#ppl_CommercialMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:to="loc_ppl_CommercialMember_38f64b22-310f-47e5-94a6-18899cbe30f4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IndustrialMember_f4e19761-ef5a-44f5-990c-517bd8530876" xlink:href="ppl-20210331.xsd#ppl_IndustrialMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:to="loc_ppl_IndustrialMember_f4e19761-ef5a-44f5-990c-517bd8530876" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherMember_4260ac30-c8e1-4a42-8b20-744d733e8082" xlink:href="ppl-20210331.xsd#ppl_OtherMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:to="loc_ppl_OtherMember_4260ac30-c8e1-4a42-8b20-744d733e8082" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WholesaleMunicipalMember_dd9f7a37-a330-4c66-afdf-3840926212b6" xlink:href="ppl-20210331.xsd#ppl_WholesaleMunicipalMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:to="loc_ppl_WholesaleMunicipalMember_dd9f7a37-a330-4c66-afdf-3840926212b6" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WholesaleOtherMember_0b298b01-7681-4e70-ad7a-b9328d46d104" xlink:href="ppl-20210331.xsd#ppl_WholesaleOtherMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:to="loc_ppl_WholesaleOtherMember_0b298b01-7681-4e70-ad7a-b9328d46d104" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DistributionMember_384c2612-09af-4840-a226-d1669fb5a81b" xlink:href="ppl-20210331.xsd#ppl_DistributionMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:to="loc_ppl_DistributionMember_384c2612-09af-4840-a226-d1669fb5a81b" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TransmissionMember_84eadf53-7367-4760-a432-026168c10f29" xlink:href="ppl-20210331.xsd#ppl_TransmissionMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e4ffa47b-139f-4161-8d77-172a7db4f9f7" xlink:to="loc_ppl_TransmissionMember_84eadf53-7367-4760-a432-026168c10f29" xlink:type="arc" order="8"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/RevenuefromContractswithCustomersDetails_1" xlink:type="simple" xlink:href="ppl-20210331.xsd#RevenuefromContractswithCustomersDetails_1"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/RevenuefromContractswithCustomersDetails_1" xlink:type="extended" id="iba5eec3fc6634c85996a45f77a46ac9b_RevenuefromContractswithCustomersDetails_1">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_f6e87dde-45a9-41ac-866e-446af5b66f0a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_ae612274-8d7b-429a-a82e-b5c63f88b271" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_f6e87dde-45a9-41ac-866e-446af5b66f0a" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_ae612274-8d7b-429a-a82e-b5c63f88b271" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_9af0d7f5-fc60-4b76-8a6e-f014c5093225" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_f6e87dde-45a9-41ac-866e-446af5b66f0a" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_9af0d7f5-fc60-4b76-8a6e-f014c5093225" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_1dbc9949-54d5-4f7c-ad38-046009df1d11" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_f6e87dde-45a9-41ac-866e-446af5b66f0a" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_1dbc9949-54d5-4f7c-ad38-046009df1d11" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_1dbc9949-54d5-4f7c-ad38-046009df1d11" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c" xlink:to="loc_us-gaap_SegmentDomain_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_0bcaf5ab-fbbd-4149-8608-7c40aa156a8c" xlink:to="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PennsylvaniaRegulatedMember_d0f7ffd5-fcf8-4ba6-b973-b35dc812587f" xlink:href="ppl-20210331.xsd#ppl_PennsylvaniaRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:to="loc_ppl_PennsylvaniaRegulatedMember_d0f7ffd5-fcf8-4ba6-b973-b35dc812587f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UnitedKingdomRegulatedMember_6c697708-0d80-4426-91f0-cc1539506e20" xlink:href="ppl-20210331.xsd#ppl_UnitedKingdomRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:to="loc_ppl_UnitedKingdomRegulatedMember_6c697708-0d80-4426-91f0-cc1539506e20" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyRegulatedMember_0f1f2e65-77a3-4f9f-8521-856c0d514276" xlink:href="ppl-20210331.xsd#ppl_KentuckyRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:to="loc_ppl_KentuckyRegulatedMember_0f1f2e65-77a3-4f9f-8521-856c0d514276" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateMember_0dd2f1c6-c640-4aea-8e9a-5c8fd4dc4dba" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CorporateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_a1b6afad-98e4-4b1f-afaf-44515f91df7b" xlink:to="loc_us-gaap_CorporateMember_0dd2f1c6-c640-4aea-8e9a-5c8fd4dc4dba" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_e0d494c6-676b-4108-87ef-8293035a77a9" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_StatementScenarioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_1dbc9949-54d5-4f7c-ad38-046009df1d11" xlink:to="loc_srt_StatementScenarioAxis_e0d494c6-676b-4108-87ef-8293035a77a9" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_e0d494c6-676b-4108-87ef-8293035a77a9_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_e0d494c6-676b-4108-87ef-8293035a77a9" xlink:to="loc_srt_ScenarioUnspecifiedDomain_e0d494c6-676b-4108-87ef-8293035a77a9_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_b3fede44-b4c6-4ede-b7c8-54ee327f5213" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_e0d494c6-676b-4108-87ef-8293035a77a9" xlink:to="loc_srt_ScenarioUnspecifiedDomain_b3fede44-b4c6-4ede-b7c8-54ee327f5213" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_f4b6779a-a24d-4f59-a8d1-c1317f815187" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioForecastMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_b3fede44-b4c6-4ede-b7c8-54ee327f5213" xlink:to="loc_srt_ScenarioForecastMember_f4b6779a-a24d-4f59-a8d1-c1317f815187" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/EarningsPerShare" xlink:type="simple" xlink:href="ppl-20210331.xsd#EarningsPerShare"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/EarningsPerShare" xlink:type="extended" id="ia1eaa2e2da284fcb9c403c874e5ed975_EarningsPerShare"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/EarningsPerShareTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#EarningsPerShareTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/EarningsPerShareTables" xlink:type="extended" id="if493fb6bb286461795845721d4d85ca3_EarningsPerShareTables"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#EarningsPerShareDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/EarningsPerShareDetails" xlink:type="extended" id="if5ac615dbf3b471b94f5d325fe26766e_EarningsPerShareDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_b93e3e39-df99-4fc6-9c23-018b32b2d691" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_2a068697-4bc3-49e6-97bc-5972d7325a89" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_b93e3e39-df99-4fc6-9c23-018b32b2d691" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_2a068697-4bc3-49e6-97bc-5972d7325a89" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_81bbf2f4-84bc-4d0e-9c82-079e4ab007fc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_b93e3e39-df99-4fc6-9c23-018b32b2d691" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_81bbf2f4-84bc-4d0e-9c82-079e4ab007fc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_5297188e-81b9-4d22-9cbc-42bbb98dc2e0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_81bbf2f4-84bc-4d0e-9c82-079e4ab007fc" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_5297188e-81b9-4d22-9cbc-42bbb98dc2e0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_5297188e-81b9-4d22-9cbc-42bbb98dc2e0_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_5297188e-81b9-4d22-9cbc-42bbb98dc2e0" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_5297188e-81b9-4d22-9cbc-42bbb98dc2e0_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_15fdbf74-4b29-4020-9e0f-0f7f85568093" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_5297188e-81b9-4d22-9cbc-42bbb98dc2e0" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_15fdbf74-4b29-4020-9e0f-0f7f85568093" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_5789ea4b-3ae2-4578-838f-5d8117d10806" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeStockOptionMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_15fdbf74-4b29-4020-9e0f-0f7f85568093" xlink:to="loc_us-gaap_EmployeeStockOptionMember_5789ea4b-3ae2-4578-838f-5d8117d10806" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/IncomeTaxes" xlink:type="simple" xlink:href="ppl-20210331.xsd#IncomeTaxes"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/IncomeTaxes" xlink:type="extended" id="ia5801a1332af4ecebe1ca7875c33ae2c_IncomeTaxes"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/IncomeTaxesTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#IncomeTaxesTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/IncomeTaxesTables" xlink:type="extended" id="iadf5953912e44e318992757d1055bb01_IncomeTaxesTables">
<link:loc xlink:type="locator" xlink:label="loc_ppl_IncomeTaxesLineItems_dad23fc6-35d6-44c9-bf91-613e3c81f54b" xlink:href="ppl-20210331.xsd#ppl_IncomeTaxesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_53a60a38-ec63-4f2b-a666-78ec2f1d4d7a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncomeTaxesLineItems_dad23fc6-35d6-44c9-bf91-613e3c81f54b" xlink:to="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_53a60a38-ec63-4f2b-a666-78ec2f1d4d7a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IncomeTaxesTable_2cd62aac-6adb-4bf1-a9b0-50bb9e352d8c" xlink:href="ppl-20210331.xsd#ppl_IncomeTaxesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_IncomeTaxesLineItems_dad23fc6-35d6-44c9-bf91-613e3c81f54b" xlink:to="loc_ppl_IncomeTaxesTable_2cd62aac-6adb-4bf1-a9b0-50bb9e352d8c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_2900681e-0edf-4981-90eb-8a822808105e" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_IncomeTaxesTable_2cd62aac-6adb-4bf1-a9b0-50bb9e352d8c" xlink:to="loc_dei_LegalEntityAxis_2900681e-0edf-4981-90eb-8a822808105e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_2900681e-0edf-4981-90eb-8a822808105e_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_2900681e-0edf-4981-90eb-8a822808105e" xlink:to="loc_dei_EntityDomain_2900681e-0edf-4981-90eb-8a822808105e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_937b0ffa-494b-4a63-a7a7-018d7e9b5489" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_2900681e-0edf-4981-90eb-8a822808105e" xlink:to="loc_dei_EntityDomain_937b0ffa-494b-4a63-a7a7-018d7e9b5489" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_5c18d7a7-fd54-40ac-aca0-7be1dfa8448c" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_937b0ffa-494b-4a63-a7a7-018d7e9b5489" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_5c18d7a7-fd54-40ac-aca0-7be1dfa8448c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_e667e22d-bb94-4e87-a993-340fec41c418" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_937b0ffa-494b-4a63-a7a7-018d7e9b5489" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_e667e22d-bb94-4e87-a993-340fec41c418" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_5358e9e5-d0e6-4554-b0d9-8f6921cb1cb4" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_937b0ffa-494b-4a63-a7a7-018d7e9b5489" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_5358e9e5-d0e6-4554-b0d9-8f6921cb1cb4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_6d22a02e-afe1-4481-b11a-8d4fa3bae09a" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_937b0ffa-494b-4a63-a7a7-018d7e9b5489" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_6d22a02e-afe1-4481-b11a-8d4fa3bae09a" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/IncomeTaxesDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#IncomeTaxesDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/IncomeTaxesDetails" xlink:type="extended" id="ief970b45af8e4eeab0594bf6d54046e7_IncomeTaxesDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_IncomeTaxesLineItems_fa7e18f5-1a7e-4272-8795-197aa889b250" xlink:href="ppl-20210331.xsd#ppl_IncomeTaxesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_e9683dd9-8c0d-41a0-bbc4-e47afc277b92" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncomeTaxesLineItems_fa7e18f5-1a7e-4272-8795-197aa889b250" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_e9683dd9-8c0d-41a0-bbc4-e47afc277b92" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_01aa8a0f-d2a6-405a-a8b8-beaa8bac36ee" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_e9683dd9-8c0d-41a0-bbc4-e47afc277b92" xlink:to="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_01aa8a0f-d2a6-405a-a8b8-beaa8bac36ee" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:href="ppl-20210331.xsd#ppl_IncreaseDecreaseDueToAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_e9683dd9-8c0d-41a0-bbc4-e47afc277b92" xlink:to="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_b0937c8c-af0c-4e31-8a8c-8b8046cfdc17" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_b0937c8c-af0c-4e31-8a8c-8b8046cfdc17" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DepreciationNotNormalized_6e7cdff0-99ba-4f9f-9aed-4ae2e5df406f" xlink:href="ppl-20210331.xsd#ppl_DepreciationNotNormalized"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_ppl_DepreciationNotNormalized_6e7cdff0-99ba-4f9f-9aed-4ae2e5df406f" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_643b8bfa-6ab5-4e38-bb48-fc06db986db0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_643b8bfa-6ab5-4e38-bb48-fc06db986db0" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential_d668ce8c-d135-4e54-9a44-7fc9b59a153e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential_d668ce8c-d135-4e54-9a44-7fc9b59a153e" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AmortizationOfExcessDeferredIncomeTaxes_60ce4ac4-1ac1-4ba5-91da-db6b64997124" xlink:href="ppl-20210331.xsd#ppl_AmortizationOfExcessDeferredIncomeTaxes"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_ppl_AmortizationOfExcessDeferredIncomeTaxes_60ce4ac4-1ac1-4ba5-91da-db6b64997124" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes_990dad96-9d74-4758-b058-2ed154d6776a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes_990dad96-9d74-4758-b058-2ed154d6776a" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IncomeTaxReconciliationForeignInterestBenefit_26c03b98-4892-4ac0-96d4-4f4101a75906" xlink:href="ppl-20210331.xsd#ppl_IncomeTaxReconciliationForeignInterestBenefit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_ppl_IncomeTaxReconciliationForeignInterestBenefit_26c03b98-4892-4ac0-96d4-4f4101a75906" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpense_d50bbc27-6d92-4756-ae13-ce1de4c289ef" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpense_d50bbc27-6d92-4756-ae13-ce1de4c289ef" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IncomeTaxReconciliationRecyclingTaxCreditNetOfFederalIncomeTaxExpense_bb62bdce-ea95-4c24-a16a-28b8d9581e6b" xlink:href="ppl-20210331.xsd#ppl_IncomeTaxReconciliationRecyclingTaxCreditNetOfFederalIncomeTaxExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_ppl_IncomeTaxReconciliationRecyclingTaxCreditNetOfFederalIncomeTaxExpense_bb62bdce-ea95-4c24-a16a-28b8d9581e6b" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_9de950c9-e90b-465c-83df-0faf1fb8a465" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_9de950c9-e90b-465c-83df-0faf1fb8a465" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TotalIncreaseDecreaseToFederalIncomeTaxOnIncomeFromContinuingOperationsAtStatutoryTaxRate_c37c20a9-866f-43e7-959f-430b415df6c4" xlink:href="ppl-20210331.xsd#ppl_TotalIncreaseDecreaseToFederalIncomeTaxOnIncomeFromContinuingOperationsAtStatutoryTaxRate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_ppl_TotalIncreaseDecreaseToFederalIncomeTaxOnIncomeFromContinuingOperationsAtStatutoryTaxRate_c37c20a9-866f-43e7-959f-430b415df6c4" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_8e0816aa-da76-4352-89e2-535e270b4ce7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncreaseDecreaseDueToAbstract_95bb8c41-3687-4737-85ef-c34bb840e078" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_8e0816aa-da76-4352-89e2-535e270b4ce7" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_c200ba83-a452-4352-b6fc-c7fcceed33d7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncomeTaxesLineItems_fa7e18f5-1a7e-4272-8795-197aa889b250" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_c200ba83-a452-4352-b6fc-c7fcceed33d7" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AmortizationOfInvestmentTaxCredit_5374f5e7-bf9a-4452-94e5-5de82be88585" xlink:href="ppl-20210331.xsd#ppl_AmortizationOfInvestmentTaxCredit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncomeTaxesLineItems_fa7e18f5-1a7e-4272-8795-197aa889b250" xlink:to="loc_ppl_AmortizationOfInvestmentTaxCredit_5374f5e7-bf9a-4452-94e5-5de82be88585" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxCredits_759e1eb0-9229-4c35-85fb-a2d1010ed8f4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxCredits"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IncomeTaxesLineItems_fa7e18f5-1a7e-4272-8795-197aa889b250" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxCredits_759e1eb0-9229-4c35-85fb-a2d1010ed8f4" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IncomeTaxesTable_64c7dc25-422c-4a88-958d-d2519ad56271" xlink:href="ppl-20210331.xsd#ppl_IncomeTaxesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_IncomeTaxesLineItems_fa7e18f5-1a7e-4272-8795-197aa889b250" xlink:to="loc_ppl_IncomeTaxesTable_64c7dc25-422c-4a88-958d-d2519ad56271" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_9524d620-ab5f-447a-b653-d1a9f573755c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_IncomeTaxesTable_64c7dc25-422c-4a88-958d-d2519ad56271" xlink:to="loc_dei_LegalEntityAxis_9524d620-ab5f-447a-b653-d1a9f573755c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_9524d620-ab5f-447a-b653-d1a9f573755c_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_9524d620-ab5f-447a-b653-d1a9f573755c" xlink:to="loc_dei_EntityDomain_9524d620-ab5f-447a-b653-d1a9f573755c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_f5066c8b-65c9-4e15-a0d0-80619edf944c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_9524d620-ab5f-447a-b653-d1a9f573755c" xlink:to="loc_dei_EntityDomain_f5066c8b-65c9-4e15-a0d0-80619edf944c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_ac0c222e-e35f-491e-b963-0537f8cc3c83" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_f5066c8b-65c9-4e15-a0d0-80619edf944c" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_ac0c222e-e35f-491e-b963-0537f8cc3c83" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_8b25cc56-2ddf-4261-8df1-ba2e8192e126" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_f5066c8b-65c9-4e15-a0d0-80619edf944c" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_8b25cc56-2ddf-4261-8df1-ba2e8192e126" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_0d951fe9-0d81-43ee-9af9-c7ee033a0867" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_f5066c8b-65c9-4e15-a0d0-80619edf944c" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_0d951fe9-0d81-43ee-9af9-c7ee033a0867" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_8bc744d8-dbd3-49a2-a031-8856153c8f7c" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_f5066c8b-65c9-4e15-a0d0-80619edf944c" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_8bc744d8-dbd3-49a2-a031-8856153c8f7c" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_31090bb7-692a-466e-819e-1876b8702b82" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_IncomeTaxesTable_64c7dc25-422c-4a88-958d-d2519ad56271" xlink:to="loc_ppl_ByCompanyAxis_31090bb7-692a-466e-819e-1876b8702b82" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_31090bb7-692a-466e-819e-1876b8702b82_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_31090bb7-692a-466e-819e-1876b8702b82" xlink:to="loc_ppl_ByCompanyDomain_31090bb7-692a-466e-819e-1876b8702b82_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_c5e2002d-20ce-439e-b3e9-3d25485f20e2" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_31090bb7-692a-466e-819e-1876b8702b82" xlink:to="loc_ppl_ByCompanyDomain_c5e2002d-20ce-439e-b3e9-3d25485f20e2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_92ee150a-bd8c-4330-ae6f-3edf84356cdf" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_c5e2002d-20ce-439e-b3e9-3d25485f20e2" xlink:to="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_92ee150a-bd8c-4330-ae6f-3edf84356cdf" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_1bbe55c9-004a-4d3c-8097-7303b7597926" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_c5e2002d-20ce-439e-b3e9-3d25485f20e2" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_1bbe55c9-004a-4d3c-8097-7303b7597926" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_1894001a-30b1-4653-b3ed-75ded49cf29d" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_c5e2002d-20ce-439e-b3e9-3d25485f20e2" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_1894001a-30b1-4653-b3ed-75ded49cf29d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CauseOfValuationAllowanceAxis_1e8bf202-739e-47ff-9997-f1604db72bad" xlink:href="ppl-20210331.xsd#ppl_CauseOfValuationAllowanceAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_IncomeTaxesTable_64c7dc25-422c-4a88-958d-d2519ad56271" xlink:to="loc_ppl_CauseOfValuationAllowanceAxis_1e8bf202-739e-47ff-9997-f1604db72bad" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CauseOfValuationAllowanceDomain_1e8bf202-739e-47ff-9997-f1604db72bad_default" xlink:href="ppl-20210331.xsd#ppl_CauseOfValuationAllowanceDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_CauseOfValuationAllowanceAxis_1e8bf202-739e-47ff-9997-f1604db72bad" xlink:to="loc_ppl_CauseOfValuationAllowanceDomain_1e8bf202-739e-47ff-9997-f1604db72bad_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CauseOfValuationAllowanceDomain_edb54125-17f6-4fdd-8852-2467db183e80" xlink:href="ppl-20210331.xsd#ppl_CauseOfValuationAllowanceDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_CauseOfValuationAllowanceAxis_1e8bf202-739e-47ff-9997-f1604db72bad" xlink:to="loc_ppl_CauseOfValuationAllowanceDomain_edb54125-17f6-4fdd-8852-2467db183e80" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_a71d9d17-b2d0-4e40-b09d-86d5136d1448" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_IncomeTaxesTable_64c7dc25-422c-4a88-958d-d2519ad56271" xlink:to="loc_srt_RangeAxis_a71d9d17-b2d0-4e40-b09d-86d5136d1448" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_a71d9d17-b2d0-4e40-b09d-86d5136d1448_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_a71d9d17-b2d0-4e40-b09d-86d5136d1448" xlink:to="loc_srt_RangeMember_a71d9d17-b2d0-4e40-b09d-86d5136d1448_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_0c6974a9-b7bf-4ce0-ae13-59735038d599" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_a71d9d17-b2d0-4e40-b09d-86d5136d1448" xlink:to="loc_srt_RangeMember_0c6974a9-b7bf-4ce0-ae13-59735038d599" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_74a015f7-ab18-4065-8b37-daf8f08776ee" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_0c6974a9-b7bf-4ce0-ae13-59735038d599" xlink:to="loc_srt_MinimumMember_74a015f7-ab18-4065-8b37-daf8f08776ee" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_36d4c1ee-6b7b-4c94-af49-27e95527569c" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_0c6974a9-b7bf-4ce0-ae13-59735038d599" xlink:to="loc_srt_MaximumMember_36d4c1ee-6b7b-4c94-af49-27e95527569c" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/IncomeTaxesTaxReformDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#IncomeTaxesTaxReformDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/IncomeTaxesTaxReformDetails" xlink:type="extended" id="ib9d21dd0ce19416dace343cb4d6640fd_IncomeTaxesTaxReformDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_TaxReformLineItems_9afe8f61-89bc-4f8d-acd4-917a1c178685" xlink:href="ppl-20210331.xsd#ppl_TaxReformLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TaxReformTable_c03e001f-a392-445c-9244-07f0bc12fd44" xlink:href="ppl-20210331.xsd#ppl_TaxReformTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_TaxReformLineItems_9afe8f61-89bc-4f8d-acd4-917a1c178685" xlink:to="loc_ppl_TaxReformTable_c03e001f-a392-445c-9244-07f0bc12fd44" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_0ca47e89-346b-40d3-9f7a-7aeb402c9d77" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_TaxReformTable_c03e001f-a392-445c-9244-07f0bc12fd44" xlink:to="loc_dei_LegalEntityAxis_0ca47e89-346b-40d3-9f7a-7aeb402c9d77" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_0ca47e89-346b-40d3-9f7a-7aeb402c9d77_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_0ca47e89-346b-40d3-9f7a-7aeb402c9d77" xlink:to="loc_dei_EntityDomain_0ca47e89-346b-40d3-9f7a-7aeb402c9d77_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_757579c5-97da-4c64-981e-6ef8a516af8f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_0ca47e89-346b-40d3-9f7a-7aeb402c9d77" xlink:to="loc_dei_EntityDomain_757579c5-97da-4c64-981e-6ef8a516af8f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TaxAdjustmentTypeAxis_3ce3d630-16cb-451b-a37e-9b0d395fded7" xlink:href="ppl-20210331.xsd#ppl_TaxAdjustmentTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_TaxReformTable_c03e001f-a392-445c-9244-07f0bc12fd44" xlink:to="loc_ppl_TaxAdjustmentTypeAxis_3ce3d630-16cb-451b-a37e-9b0d395fded7" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TaxAdjustmentTypeDomain_3ce3d630-16cb-451b-a37e-9b0d395fded7_default" xlink:href="ppl-20210331.xsd#ppl_TaxAdjustmentTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_TaxAdjustmentTypeAxis_3ce3d630-16cb-451b-a37e-9b0d395fded7" xlink:to="loc_ppl_TaxAdjustmentTypeDomain_3ce3d630-16cb-451b-a37e-9b0d395fded7_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TaxAdjustmentTypeDomain_5cd44cd5-6365-41e3-8995-6fd1b0c122ba" xlink:href="ppl-20210331.xsd#ppl_TaxAdjustmentTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_TaxAdjustmentTypeAxis_3ce3d630-16cb-451b-a37e-9b0d395fded7" xlink:to="loc_ppl_TaxAdjustmentTypeDomain_5cd44cd5-6365-41e3-8995-6fd1b0c122ba" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/UtilityRateRegulation" xlink:type="simple" xlink:href="ppl-20210331.xsd#UtilityRateRegulation"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/UtilityRateRegulation" xlink:type="extended" id="i68b9b5e5328245ed93df64e69588ff0c_UtilityRateRegulation"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/UtilityRateRegulationTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#UtilityRateRegulationTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/UtilityRateRegulationTables" xlink:type="extended" id="ief945848531e44168018fdbd44d968a4_UtilityRateRegulationTables">
<link:loc xlink:type="locator" xlink:label="loc_ppl_RegulatedOperationsLineItems_f557670c-7036-4de0-ab79-b119c2969a29" xlink:href="ppl-20210331.xsd#ppl_RegulatedOperationsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock_5b8860e5-d1a6-4583-9d93-a58cb5bbea94" xlink:href="ppl-20210331.xsd#ppl_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatedOperationsLineItems_f557670c-7036-4de0-ab79-b119c2969a29" xlink:to="loc_ppl_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock_5b8860e5-d1a6-4583-9d93-a58cb5bbea94" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisclosureTable_6a8c3ebd-e0a7-405a-8f65-8abc89c27c65" xlink:href="ppl-20210331.xsd#ppl_DisclosureTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_RegulatedOperationsLineItems_f557670c-7036-4de0-ab79-b119c2969a29" xlink:to="loc_ppl_DisclosureTable_6a8c3ebd-e0a7-405a-8f65-8abc89c27c65" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_130b74e6-2e19-4579-b25c-4e98b5cb6d1d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DisclosureTable_6a8c3ebd-e0a7-405a-8f65-8abc89c27c65" xlink:to="loc_dei_LegalEntityAxis_130b74e6-2e19-4579-b25c-4e98b5cb6d1d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_130b74e6-2e19-4579-b25c-4e98b5cb6d1d_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_130b74e6-2e19-4579-b25c-4e98b5cb6d1d" xlink:to="loc_dei_EntityDomain_130b74e6-2e19-4579-b25c-4e98b5cb6d1d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_33c0746b-53a8-42f9-b5d3-107b0f4226d9" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_130b74e6-2e19-4579-b25c-4e98b5cb6d1d" xlink:to="loc_dei_EntityDomain_33c0746b-53a8-42f9-b5d3-107b0f4226d9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_6b7a16ee-5523-45c8-9f22-e426322db2f4" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_33c0746b-53a8-42f9-b5d3-107b0f4226d9" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_6b7a16ee-5523-45c8-9f22-e426322db2f4" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_f7cad47e-35d9-4b61-8be3-7f7c4cb35b85" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_33c0746b-53a8-42f9-b5d3-107b0f4226d9" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_f7cad47e-35d9-4b61-8be3-7f7c4cb35b85" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_51f20968-98f8-44fe-9ac1-99451021bf3a" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_33c0746b-53a8-42f9-b5d3-107b0f4226d9" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_51f20968-98f8-44fe-9ac1-99451021bf3a" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_410ea3bc-b2c9-4339-a29c-641effa553a7" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_33c0746b-53a8-42f9-b5d3-107b0f4226d9" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_410ea3bc-b2c9-4339-a29c-641effa553a7" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/UtilityRateRegulationRegulatoryAssetsDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#UtilityRateRegulationRegulatoryAssetsDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/UtilityRateRegulationRegulatoryAssetsDetails" xlink:type="extended" id="if848443959ad4c098bad4ff514487e96_UtilityRateRegulationRegulatoryAssetsDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetLineItems_a7499f12-7598-424c-9086-08c740d8c2ac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAssetLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_9feeca3d-9efe-4967-9113-3dfd18b9f473" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAssetsCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_a7499f12-7598-424c-9086-08c740d8c2ac" xlink:to="loc_us-gaap_RegulatoryAssetsCurrent_9feeca3d-9efe-4967-9113-3dfd18b9f473" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_ee5e950d-ae02-4866-9c95-98f9252af692" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_a7499f12-7598-424c-9086-08c740d8c2ac" xlink:to="loc_us-gaap_RegulatoryAssetsNoncurrent_ee5e950d-ae02-4866-9c95-98f9252af692" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_458b7458-bd1e-4f83-b3ad-82925092c5cb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfRegulatoryAssetsTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RegulatoryAssetLineItems_a7499f12-7598-424c-9086-08c740d8c2ac" xlink:to="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_458b7458-bd1e-4f83-b3ad-82925092c5cb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_ab0a9f86-4c95-4532-9604-4bac4bdb05e0" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_458b7458-bd1e-4f83-b3ad-82925092c5cb" xlink:to="loc_dei_LegalEntityAxis_ab0a9f86-4c95-4532-9604-4bac4bdb05e0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_ab0a9f86-4c95-4532-9604-4bac4bdb05e0_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_ab0a9f86-4c95-4532-9604-4bac4bdb05e0" xlink:to="loc_dei_EntityDomain_ab0a9f86-4c95-4532-9604-4bac4bdb05e0_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_fafa364b-5d48-45f9-ab8b-99c2d0103175" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_ab0a9f86-4c95-4532-9604-4bac4bdb05e0" xlink:to="loc_dei_EntityDomain_fafa364b-5d48-45f9-ab8b-99c2d0103175" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_1a582745-d9d0-4f82-a4c3-b10e2b739612" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_fafa364b-5d48-45f9-ab8b-99c2d0103175" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_1a582745-d9d0-4f82-a4c3-b10e2b739612" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_1f31cfe8-514e-42df-9cbc-8908da7bce9c" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_fafa364b-5d48-45f9-ab8b-99c2d0103175" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_1f31cfe8-514e-42df-9cbc-8908da7bce9c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_d6f5f7fb-c994-466b-b1af-81364fec8ea2" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_fafa364b-5d48-45f9-ab8b-99c2d0103175" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_d6f5f7fb-c994-466b-b1af-81364fec8ea2" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_0c12ea6a-58c0-4ab5-98f4-b582c0ec676a" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_fafa364b-5d48-45f9-ab8b-99c2d0103175" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_0c12ea6a-58c0-4ab5-98f4-b582c0ec676a" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetAxis_bc2ba1b0-32f2-45ed-971e-3e8916cc73d3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAssetAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRegulatoryAssetsTable_458b7458-bd1e-4f83-b3ad-82925092c5cb" xlink:to="loc_us-gaap_RegulatoryAssetAxis_bc2ba1b0-32f2-45ed-971e-3e8916cc73d3" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetDomain_bc2ba1b0-32f2-45ed-971e-3e8916cc73d3_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAssetDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RegulatoryAssetAxis_bc2ba1b0-32f2-45ed-971e-3e8916cc73d3" xlink:to="loc_us-gaap_RegulatoryAssetDomain_bc2ba1b0-32f2-45ed-971e-3e8916cc73d3_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAssetDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RegulatoryAssetAxis_bc2ba1b0-32f2-45ed-971e-3e8916cc73d3" xlink:to="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PlantoutagecostsMember_a24be376-0b99-4b5b-965f-c5246525484a" xlink:href="ppl-20210331.xsd#ppl_PlantoutagecostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_ppl_PlantoutagecostsMember_a24be376-0b99-4b5b-965f-c5246525484a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRecoverableGasCostsMember_8ee0b970-d2ab-4711-a9ad-37835aa1292f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRecoverableGasCostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_us-gaap_AssetRecoverableGasCostsMember_8ee0b970-d2ab-4711-a9ad-37835aa1292f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SmartMeterRiderMember_a35edef6-dce0-4890-a4da-b52379e1adf6" xlink:href="ppl-20210331.xsd#ppl_SmartMeterRiderMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_ppl_SmartMeterRiderMember_a35edef6-dce0-4890-a4da-b52379e1adf6" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TransmissionFormulaRateMember_e4996351-c92c-45b3-b5af-282b4e785d62" xlink:href="ppl-20210331.xsd#ppl_TransmissionFormulaRateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_ppl_TransmissionFormulaRateMember_e4996351-c92c-45b3-b5af-282b4e785d62" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TransmissionServiceChargeMember_7ac149f0-abcf-4818-b98d-8dee3620f15b" xlink:href="ppl-20210331.xsd#ppl_TransmissionServiceChargeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_ppl_TransmissionServiceChargeMember_7ac149f0-abcf-4818-b98d-8dee3620f15b" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementPlansCostsMember_87b2c244-5f71-41e2-8946-4c32635719fe" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PensionAndOtherPostretirementPlansCostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_us-gaap_PensionAndOtherPostretirementPlansCostsMember_87b2c244-5f71-41e2-8946-4c32635719fe" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StormCostsMember_a6f90a9c-f5e2-449c-8737-14f0b8ea62fa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StormCostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_us-gaap_StormCostsMember_a6f90a9c-f5e2-449c-8737-14f0b8ea62fa" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossOnReacquiredDebtMember_192de5a0-b3cd-4445-9859-888021357a5b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossOnReacquiredDebtMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_us-gaap_LossOnReacquiredDebtMember_192de5a0-b3cd-4445-9859-888021357a5b" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_24743e80-b168-46de-986a-486737b9d2e0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestRateSwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_us-gaap_InterestRateSwapMember_24743e80-b168-46de-986a-486737b9d2e0" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TerminatedInterestRateSwapMember_e783fc24-d410-436c-9819-93f3ce2bb836" xlink:href="ppl-20210331.xsd#ppl_TerminatedInterestRateSwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_ppl_TerminatedInterestRateSwapMember_e783fc24-d410-436c-9819-93f3ce2bb836" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RemovalCostsMember_9547d796-86f3-4003-bdc3-a11c4e7b4815" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RemovalCostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_us-gaap_RemovalCostsMember_9547d796-86f3-4003-bdc3-a11c4e7b4815" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationCostsMember_f0aa54a3-99b7-42f5-9eda-75646679a839" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligationCostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_us-gaap_AssetRetirementObligationCostsMember_f0aa54a3-99b7-42f5-9eda-75646679a839" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_Act129ComplianceRiderMember_524b2a4e-72fa-4a3d-9f35-b23e451b9334" xlink:href="ppl-20210331.xsd#ppl_Act129ComplianceRiderMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_ppl_Act129ComplianceRiderMember_524b2a4e-72fa-4a3d-9f35-b23e451b9334" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherRegulatoryAssetsMember_ea2d04e0-027a-4f89-8b49-9aee73bcaace" xlink:href="ppl-20210331.xsd#ppl_OtherRegulatoryAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_31eec91e-1f09-42b1-b449-e33966969d60" xlink:to="loc_ppl_OtherRegulatoryAssetsMember_ea2d04e0-027a-4f89-8b49-9aee73bcaace" xlink:type="arc" order="13"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/UtilityRateRegulationRegulatoryLiabilitiesDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#UtilityRateRegulationRegulatoryLiabilitiesDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/UtilityRateRegulationRegulatoryLiabilitiesDetails" xlink:type="extended" id="icc659dab7acc4185ae8836776dfb506c_UtilityRateRegulationRegulatoryLiabilitiesDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryLiabilitiesLineItems_7b267d45-3af5-4edb-85ac-183743da1289" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryLiabilitiesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryLiabilityCurrent_a2f17e21-fd42-4bec-a118-745394213f05" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilitiesLineItems_7b267d45-3af5-4edb-85ac-183743da1289" xlink:to="loc_us-gaap_RegulatoryLiabilityCurrent_a2f17e21-fd42-4bec-a118-745394213f05" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryLiabilityNoncurrent_5df83322-2c49-4564-baf0-d32015b30bf3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryLiabilityNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilitiesLineItems_7b267d45-3af5-4edb-85ac-183743da1289" xlink:to="loc_us-gaap_RegulatoryLiabilityNoncurrent_5df83322-2c49-4564-baf0-d32015b30bf3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RegulatoryLiabilityDueToROEReserveAfterTax_09221612-c0e3-4e81-ab80-bca32cb752b1" xlink:href="ppl-20210331.xsd#ppl_RegulatoryLiabilityDueToROEReserveAfterTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilitiesLineItems_7b267d45-3af5-4edb-85ac-183743da1289" xlink:to="loc_ppl_RegulatoryLiabilityDueToROEReserveAfterTax_09221612-c0e3-4e81-ab80-bca32cb752b1" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRegulatoryLiabilitiesTable_1761cf99-a4bc-4cb2-ba96-d8a5fe8725a8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfRegulatoryLiabilitiesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RegulatoryLiabilitiesLineItems_7b267d45-3af5-4edb-85ac-183743da1289" xlink:to="loc_us-gaap_ScheduleOfRegulatoryLiabilitiesTable_1761cf99-a4bc-4cb2-ba96-d8a5fe8725a8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_997a7e5e-5e4c-4fa0-9cee-6818e01bdaa2" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRegulatoryLiabilitiesTable_1761cf99-a4bc-4cb2-ba96-d8a5fe8725a8" xlink:to="loc_dei_LegalEntityAxis_997a7e5e-5e4c-4fa0-9cee-6818e01bdaa2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_997a7e5e-5e4c-4fa0-9cee-6818e01bdaa2_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_997a7e5e-5e4c-4fa0-9cee-6818e01bdaa2" xlink:to="loc_dei_EntityDomain_997a7e5e-5e4c-4fa0-9cee-6818e01bdaa2_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_703cc955-11da-4e08-8119-5899aa75f2dc" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_997a7e5e-5e4c-4fa0-9cee-6818e01bdaa2" xlink:to="loc_dei_EntityDomain_703cc955-11da-4e08-8119-5899aa75f2dc" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_dee7db5e-1e19-4265-9a03-a2f524bebb2f" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_703cc955-11da-4e08-8119-5899aa75f2dc" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_dee7db5e-1e19-4265-9a03-a2f524bebb2f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_973e484e-3bef-43f2-8a27-cf449d89faa9" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_703cc955-11da-4e08-8119-5899aa75f2dc" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_973e484e-3bef-43f2-8a27-cf449d89faa9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_fbe3e3c0-ec5a-4186-bcb0-3f421fa6bac4" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_703cc955-11da-4e08-8119-5899aa75f2dc" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_fbe3e3c0-ec5a-4186-bcb0-3f421fa6bac4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_74d99b78-3298-4418-87f6-4890a7720e85" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_703cc955-11da-4e08-8119-5899aa75f2dc" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_74d99b78-3298-4418-87f6-4890a7720e85" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_5f7bfe1c-54ec-46f4-8287-a3ec951901d9" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_703cc955-11da-4e08-8119-5899aa75f2dc" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_5f7bfe1c-54ec-46f4-8287-a3ec951901d9" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryLiabilityAxis_16f6916b-9530-4079-9840-42df768e583e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryLiabilityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRegulatoryLiabilitiesTable_1761cf99-a4bc-4cb2-ba96-d8a5fe8725a8" xlink:to="loc_us-gaap_RegulatoryLiabilityAxis_16f6916b-9530-4079-9840-42df768e583e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryLiabilityDomain_16f6916b-9530-4079-9840-42df768e583e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryLiabilityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RegulatoryLiabilityAxis_16f6916b-9530-4079-9840-42df768e583e" xlink:to="loc_us-gaap_RegulatoryLiabilityDomain_16f6916b-9530-4079-9840-42df768e583e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryLiabilityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RegulatoryLiabilityAxis_16f6916b-9530-4079-9840-42df768e583e" xlink:to="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GenerationSupplyChargeMember_4fea5dab-e35c-45da-9481-0eac7f6475c1" xlink:href="ppl-20210331.xsd#ppl_GenerationSupplyChargeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_GenerationSupplyChargeMember_4fea5dab-e35c-45da-9481-0eac7f6475c1" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EnvironmentalCostRecoveryMember_198fd8d6-5bd4-443d-a53e-b7980c41756f" xlink:href="ppl-20210331.xsd#ppl_EnvironmentalCostRecoveryMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_EnvironmentalCostRecoveryMember_198fd8d6-5bd4-443d-a53e-b7980c41756f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DemandSideManagementMember_22668c5c-f20c-4104-a020-5760fb062ac0" xlink:href="ppl-20210331.xsd#ppl_DemandSideManagementMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_DemandSideManagementMember_22668c5c-f20c-4104-a020-5760fb062ac0" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UniversalServiceRiderMember_9fa12f43-96fc-4df8-ae90-177b0325db8a" xlink:href="ppl-20210331.xsd#ppl_UniversalServiceRiderMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_UniversalServiceRiderMember_9fa12f43-96fc-4df8-ae90-177b0325db8a" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFuelCostsMember_140038af-4c11-49ee-a3bd-580dca853ae1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFuelCostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_us-gaap_DeferredFuelCostsMember_140038af-4c11-49ee-a3bd-580dca853ae1" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TCJAsurcreditMember_1e761be3-d3fe-4913-805b-239a086aa299" xlink:href="ppl-20210331.xsd#ppl_TCJAsurcreditMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_TCJAsurcreditMember_1e761be3-d3fe-4913-805b-239a086aa299" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_StormDamageExpenseMember_186aa391-3660-4d01-921e-d4c84cc4b5f0" xlink:href="ppl-20210331.xsd#ppl_StormDamageExpenseMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_StormDamageExpenseMember_186aa391-3660-4d01-921e-d4c84cc4b5f0" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_Act129ComplianceRiderMember_641678be-d5ae-4817-a269-3352474a6437" xlink:href="ppl-20210331.xsd#ppl_Act129ComplianceRiderMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_Act129ComplianceRiderMember_641678be-d5ae-4817-a269-3352474a6437" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RemovalCostsMember_3dc8d08e-b73e-45dd-a749-830377042644" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RemovalCostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_us-gaap_RemovalCostsMember_3dc8d08e-b73e-45dd-a749-830377042644" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PowerPurchaseAgreementOhioValleyElectricCorporationMember_b98c5e16-ac71-4929-88e5-e06167deaf17" xlink:href="ppl-20210331.xsd#ppl_PowerPurchaseAgreementOhioValleyElectricCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_PowerPurchaseAgreementOhioValleyElectricCorporationMember_b98c5e16-ac71-4929-88e5-e06167deaf17" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NetDeferredTaxAssetsMember_d6a0e3df-8515-411c-a6eb-253f5f7ac1c3" xlink:href="ppl-20210331.xsd#ppl_NetDeferredTaxAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_NetDeferredTaxAssetsMember_d6a0e3df-8515-411c-a6eb-253f5f7ac1c3" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementPlansCostsMember_602407e4-5298-4454-ad88-6d5abee8e4ec" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PensionAndOtherPostretirementPlansCostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_us-gaap_PensionAndOtherPostretirementPlansCostsMember_602407e4-5298-4454-ad88-6d5abee8e4ec" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TerminatedInterestRateSwapMember_c2c2c62a-32ca-4f0d-9139-294822a65669" xlink:href="ppl-20210331.xsd#ppl_TerminatedInterestRateSwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_TerminatedInterestRateSwapMember_c2c2c62a-32ca-4f0d-9139-294822a65669" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_1d142f73-59e1-4e1a-97d7-6708a5299568" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestRateSwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_us-gaap_InterestRateSwapMember_1d142f73-59e1-4e1a-97d7-6708a5299568" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherRegulatoryLiabilitiesMember_477ba694-d41d-4efa-98da-44f3da2617ca" xlink:href="ppl-20210331.xsd#ppl_OtherRegulatoryLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_OtherRegulatoryLiabilitiesMember_477ba694-d41d-4efa-98da-44f3da2617ca" xlink:type="arc" order="14"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TransmissionServiceChargeMember_ce517404-5974-4cdb-823b-c2d9823094fb" xlink:href="ppl-20210331.xsd#ppl_TransmissionServiceChargeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_TransmissionServiceChargeMember_ce517404-5974-4cdb-823b-c2d9823094fb" xlink:type="arc" order="15"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RegulatoryLiabilityDueToROEReserveMember_056dbbf5-1259-41f5-837e-f3652ad3976f" xlink:href="ppl-20210331.xsd#ppl_RegulatoryLiabilityDueToROEReserveMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_4a9e4e34-9e22-45cd-a1d6-6112ba0217c9" xlink:to="loc_ppl_RegulatoryLiabilityDueToROEReserveMember_056dbbf5-1259-41f5-837e-f3652ad3976f" xlink:type="arc" order="16"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_c9f8625c-4c8d-4ae7-b175-42f7fbb761cb" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRegulatoryLiabilitiesTable_1761cf99-a4bc-4cb2-ba96-d8a5fe8725a8" xlink:to="loc_ppl_ByCompanyAxis_c9f8625c-4c8d-4ae7-b175-42f7fbb761cb" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_c9f8625c-4c8d-4ae7-b175-42f7fbb761cb_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_c9f8625c-4c8d-4ae7-b175-42f7fbb761cb" xlink:to="loc_ppl_ByCompanyDomain_c9f8625c-4c8d-4ae7-b175-42f7fbb761cb_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_7b13de4b-20a6-4420-8720-73f5e74b899d" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_c9f8625c-4c8d-4ae7-b175-42f7fbb761cb" xlink:to="loc_ppl_ByCompanyDomain_7b13de4b-20a6-4420-8720-73f5e74b899d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_1772a8fd-44ef-41f6-b32c-073b6ee01e5e" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_7b13de4b-20a6-4420-8720-73f5e74b899d" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_1772a8fd-44ef-41f6-b32c-073b6ee01e5e" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/UtilityRateRegulationRegulatoryMattersDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#UtilityRateRegulationRegulatoryMattersDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/UtilityRateRegulationRegulatoryMattersDetails" xlink:type="extended" id="i44ad325943894fbea0768ee2ae917fc1_UtilityRateRegulationRegulatoryMattersDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:href="ppl-20210331.xsd#ppl_RegulatoryMattersLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PublicUtilitiesExpectedCapitalCostsToComply_dd468542-be84-44f5-ae49-477033449b34" xlink:href="ppl-20210331.xsd#ppl_PublicUtilitiesExpectedCapitalCostsToComply"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_PublicUtilitiesExpectedCapitalCostsToComply_dd468542-be84-44f5-ae49-477033449b34" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RegulatoryMattersKentuckyActivitiesRateCaseProceedingsAbstract_f462a0cc-a878-4ad8-9c2a-f0a7a0fd09b4" xlink:href="ppl-20210331.xsd#ppl_RegulatoryMattersKentuckyActivitiesRateCaseProceedingsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_RegulatoryMattersKentuckyActivitiesRateCaseProceedingsAbstract_f462a0cc-a878-4ad8-9c2a-f0a7a0fd09b4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage_e3e7569f-a8a1-40a8-8a15-0ed18f2d2df7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersKentuckyActivitiesRateCaseProceedingsAbstract_f462a0cc-a878-4ad8-9c2a-f0a7a0fd09b4" xlink:to="loc_us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage_e3e7569f-a8a1-40a8-8a15-0ed18f2d2df7" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_14ee90b2-7a3d-480b-8666-3b60f97c6f72" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_14ee90b2-7a3d-480b-8666-3b60f97c6f72" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ChangeInNetIncomeDueToROEAdjustment_30ba7b91-d28d-4226-8e79-8948be11ce17" xlink:href="ppl-20210331.xsd#ppl_ChangeInNetIncomeDueToROEAdjustment"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_ChangeInNetIncomeDueToROEAdjustment_30ba7b91-d28d-4226-8e79-8948be11ce17" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ProposedReturnOfEquityFromComplaint_4c6c0af9-d0f7-471c-9ff9-87515936982e" xlink:href="ppl-20210331.xsd#ppl_ProposedReturnOfEquityFromComplaint"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_ProposedReturnOfEquityFromComplaint_4c6c0af9-d0f7-471c-9ff9-87515936982e" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AmendedProposedReturnOnEquityFromComplaint_5e5a1149-55dc-4237-aa6b-8c5223876c13" xlink:href="ppl-20210331.xsd#ppl_AmendedProposedReturnOnEquityFromComplaint"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_AmendedProposedReturnOnEquityFromComplaint_5e5a1149-55dc-4237-aa6b-8c5223876c13" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount_f238ca7c-86af-454f-b076-f0d50b9957b6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount_f238ca7c-86af-454f-b076-f0d50b9957b6" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreasePercentage_9f152d71-a09d-4dae-83ae-ba651f59617d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PublicUtilitiesRequestedRateIncreaseDecreasePercentage"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreasePercentage_9f152d71-a09d-4dae-83ae-ba651f59617d" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PublicUtilitiesRequestedBillCredit_8155a090-2378-4f47-bcbf-060d30f57687" xlink:href="ppl-20210331.xsd#ppl_PublicUtilitiesRequestedBillCredit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_PublicUtilitiesRequestedBillCredit_8155a090-2378-4f47-bcbf-060d30f57687" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_d8144013-69a6-4875-b0de-570148a70e0e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_d8144013-69a6-4875-b0de-570148a70e0e" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_Act129RecoveryPeriodUnderPhaseIVPlan_88b59b8c-ff94-4ecb-a9e0-84b044af4d7e" xlink:href="ppl-20210331.xsd#ppl_Act129RecoveryPeriodUnderPhaseIVPlan"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_Act129RecoveryPeriodUnderPhaseIVPlan_88b59b8c-ff94-4ecb-a9e0-84b044af4d7e" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RegulatoryLiabilityDueToROEReserveAfterTax_8230a46b-1f6c-44a7-b28c-ecef574f2b8f" xlink:href="ppl-20210331.xsd#ppl_RegulatoryLiabilityDueToROEReserveAfterTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_RegulatoryLiabilityDueToROEReserveAfterTax_8230a46b-1f6c-44a7-b28c-ecef574f2b8f" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RARRiderPostRetirementRecoveryPeriod_f07e4b62-95a7-49fa-abb3-1079c5b1807e" xlink:href="ppl-20210331.xsd#ppl_RARRiderPostRetirementRecoveryPeriod"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_RARRiderPostRetirementRecoveryPeriod_f07e4b62-95a7-49fa-abb3-1079c5b1807e" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_StayOutCommitmentPeriod_2ee7f172-95fe-40f0-a036-60fe8265b7ac" xlink:href="ppl-20210331.xsd#ppl_StayOutCommitmentPeriod"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_StayOutCommitmentPeriod_2ee7f172-95fe-40f0-a036-60fe8265b7ac" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RequestedBillingCreditPeriod_1a4d51ec-2a32-4dda-aad7-81430eb434c1" xlink:href="ppl-20210331.xsd#ppl_RequestedBillingCreditPeriod"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_RequestedBillingCreditPeriod_1a4d51ec-2a32-4dda-aad7-81430eb434c1" xlink:type="arc" order="14"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:href="ppl-20210331.xsd#ppl_RegulatoryMattersTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_RegulatoryMattersLineItems_8f527d95-0373-4dcf-8af8-29ae6db3a0a2" xlink:to="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_f0844f86-ea77-4697-b127-0d52ce9b9bf9" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:to="loc_dei_LegalEntityAxis_f0844f86-ea77-4697-b127-0d52ce9b9bf9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_f0844f86-ea77-4697-b127-0d52ce9b9bf9_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_f0844f86-ea77-4697-b127-0d52ce9b9bf9" xlink:to="loc_dei_EntityDomain_f0844f86-ea77-4697-b127-0d52ce9b9bf9_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_a7336112-478d-4522-b1d3-f525ac25afdb" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_f0844f86-ea77-4697-b127-0d52ce9b9bf9" xlink:to="loc_dei_EntityDomain_a7336112-478d-4522-b1d3-f525ac25afdb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_103aa587-ca1b-4a13-bca3-a7ed6cb308ab" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a7336112-478d-4522-b1d3-f525ac25afdb" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_103aa587-ca1b-4a13-bca3-a7ed6cb308ab" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_d9cd6f2b-c31e-413d-a377-ecf0b0953957" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a7336112-478d-4522-b1d3-f525ac25afdb" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_d9cd6f2b-c31e-413d-a377-ecf0b0953957" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_2842ff48-d5e7-407c-bcba-7baf96801cc9" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a7336112-478d-4522-b1d3-f525ac25afdb" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_2842ff48-d5e7-407c-bcba-7baf96801cc9" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_85d99bdc-b9ed-40dd-acd2-2bfc402e56b8" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a7336112-478d-4522-b1d3-f525ac25afdb" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_85d99bdc-b9ed-40dd-acd2-2bfc402e56b8" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_db83872d-4f92-4b03-bfb4-a44c87fdae9d" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a7336112-478d-4522-b1d3-f525ac25afdb" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_db83872d-4f92-4b03-bfb4-a44c87fdae9d" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_6c93292a-f9c8-4454-8fd8-0c61784740c5" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:to="loc_ppl_ByCompanyAxis_6c93292a-f9c8-4454-8fd8-0c61784740c5" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_6c93292a-f9c8-4454-8fd8-0c61784740c5_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_6c93292a-f9c8-4454-8fd8-0c61784740c5" xlink:to="loc_ppl_ByCompanyDomain_6c93292a-f9c8-4454-8fd8-0c61784740c5_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_3baf53e2-79ee-4e6d-b07f-f16273c23109" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_6c93292a-f9c8-4454-8fd8-0c61784740c5" xlink:to="loc_ppl_ByCompanyDomain_3baf53e2-79ee-4e6d-b07f-f16273c23109" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_05a58b7d-527b-4ec6-a450-cadc118c7fef" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_3baf53e2-79ee-4e6d-b07f-f16273c23109" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_05a58b7d-527b-4ec6-a450-cadc118c7fef" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_142dd226-84ae-4aac-9dcc-fa5415ea0d18" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_3baf53e2-79ee-4e6d-b07f-f16273c23109" xlink:to="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_142dd226-84ae-4aac-9dcc-fa5415ea0d18" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_ad9e005c-3a63-4db0-b24f-b1e0c11cc18a" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_3baf53e2-79ee-4e6d-b07f-f16273c23109" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_ad9e005c-3a63-4db0-b24f-b1e0c11cc18a" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_57f9297a-6a10-40d9-b51c-45b77881e038" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_3baf53e2-79ee-4e6d-b07f-f16273c23109" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_57f9297a-6a10-40d9-b51c-45b77881e038" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAgencyAxis_cd21bff7-b5d2-49e2-99e7-566728e93fac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAgencyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:to="loc_us-gaap_RegulatoryAgencyAxis_cd21bff7-b5d2-49e2-99e7-566728e93fac" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAgencyDomain_cd21bff7-b5d2-49e2-99e7-566728e93fac_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAgencyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RegulatoryAgencyAxis_cd21bff7-b5d2-49e2-99e7-566728e93fac" xlink:to="loc_us-gaap_RegulatoryAgencyDomain_cd21bff7-b5d2-49e2-99e7-566728e93fac_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAgencyDomain_92efe127-55bf-49db-b2a6-06a2bd87d477" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAgencyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RegulatoryAgencyAxis_cd21bff7-b5d2-49e2-99e7-566728e93fac" xlink:to="loc_us-gaap_RegulatoryAgencyDomain_92efe127-55bf-49db-b2a6-06a2bd87d477" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyPublicServiceCommissionMember_252a3009-d760-454a-9c1c-f4020572fdda" xlink:href="ppl-20210331.xsd#ppl_KentuckyPublicServiceCommissionMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAgencyDomain_92efe127-55bf-49db-b2a6-06a2bd87d477" xlink:to="loc_ppl_KentuckyPublicServiceCommissionMember_252a3009-d760-454a-9c1c-f4020572fdda" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsAxis_45d395c5-9665-49ec-85ca-afa3aef3beb8" xlink:href="ppl-20210331.xsd#ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:to="loc_ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsAxis_45d395c5-9665-49ec-85ca-afa3aef3beb8" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsDomain_45d395c5-9665-49ec-85ca-afa3aef3beb8_default" xlink:href="ppl-20210331.xsd#ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsAxis_45d395c5-9665-49ec-85ca-afa3aef3beb8" xlink:to="loc_ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsDomain_45d395c5-9665-49ec-85ca-afa3aef3beb8_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsDomain_d260aa32-649b-46be-a036-970d1b5f02df" xlink:href="ppl-20210331.xsd#ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsAxis_45d395c5-9665-49ec-85ca-afa3aef3beb8" xlink:to="loc_ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsDomain_d260aa32-649b-46be-a036-970d1b5f02df" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EnvironmentalCostRecoveryMember_6b6cc549-f249-4f5f-a709-a2b9f1d6812c" xlink:href="ppl-20210331.xsd#ppl_EnvironmentalCostRecoveryMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsDomain_d260aa32-649b-46be-a036-970d1b5f02df" xlink:to="loc_ppl_EnvironmentalCostRecoveryMember_6b6cc549-f249-4f5f-a709-a2b9f1d6812c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EnvironmentalCostRecoveryAndGasLineTrackerMember_eee4f124-5988-475f-b1ca-7d283be5bbf6" xlink:href="ppl-20210331.xsd#ppl_EnvironmentalCostRecoveryAndGasLineTrackerMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsDomain_d260aa32-649b-46be-a036-970d1b5f02df" xlink:to="loc_ppl_EnvironmentalCostRecoveryAndGasLineTrackerMember_eee4f124-5988-475f-b1ca-7d283be5bbf6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ProjectNameAxis_b092f591-a513-49f3-a6cb-3033062f46c9" xlink:href="ppl-20210331.xsd#ppl_ProjectNameAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:to="loc_ppl_ProjectNameAxis_b092f591-a513-49f3-a6cb-3033062f46c9" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ProjectNameDomain_b092f591-a513-49f3-a6cb-3033062f46c9_default" xlink:href="ppl-20210331.xsd#ppl_ProjectNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ProjectNameAxis_b092f591-a513-49f3-a6cb-3033062f46c9" xlink:to="loc_ppl_ProjectNameDomain_b092f591-a513-49f3-a6cb-3033062f46c9_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ProjectNameDomain_c70ad105-0cce-4aed-90f2-cda0f532b2bf" xlink:href="ppl-20210331.xsd#ppl_ProjectNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ProjectNameAxis_b092f591-a513-49f3-a6cb-3033062f46c9" xlink:to="loc_ppl_ProjectNameDomain_c70ad105-0cce-4aed-90f2-cda0f532b2bf" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RatesTypeAxis_71a0ff42-6a04-4af8-8ad6-3023e09b7aed" xlink:href="ppl-20210331.xsd#ppl_RatesTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:to="loc_ppl_RatesTypeAxis_71a0ff42-6a04-4af8-8ad6-3023e09b7aed" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RatesTypeDomain_71a0ff42-6a04-4af8-8ad6-3023e09b7aed_default" xlink:href="ppl-20210331.xsd#ppl_RatesTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_RatesTypeAxis_71a0ff42-6a04-4af8-8ad6-3023e09b7aed" xlink:to="loc_ppl_RatesTypeDomain_71a0ff42-6a04-4af8-8ad6-3023e09b7aed_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RatesTypeDomain_19d62471-fa75-4fb0-b8f7-da5fea418e73" xlink:href="ppl-20210331.xsd#ppl_RatesTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_RatesTypeAxis_71a0ff42-6a04-4af8-8ad6-3023e09b7aed" xlink:to="loc_ppl_RatesTypeDomain_19d62471-fa75-4fb0-b8f7-da5fea418e73" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ElectricAndGasRatesMember_d896f926-f2aa-4a03-b1df-9d64900b5dbc" xlink:href="ppl-20210331.xsd#ppl_ElectricAndGasRatesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RatesTypeDomain_19d62471-fa75-4fb0-b8f7-da5fea418e73" xlink:to="loc_ppl_ElectricAndGasRatesMember_d896f926-f2aa-4a03-b1df-9d64900b5dbc" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ElectricRatesMember_bf8555d2-3ae2-46f1-8644-7e6541e1eee3" xlink:href="ppl-20210331.xsd#ppl_ElectricRatesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RatesTypeDomain_19d62471-fa75-4fb0-b8f7-da5fea418e73" xlink:to="loc_ppl_ElectricRatesMember_bf8555d2-3ae2-46f1-8644-7e6541e1eee3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GasRatesMember_ae20a4db-bd88-4411-916f-9cc6a72a7b5d" xlink:href="ppl-20210331.xsd#ppl_GasRatesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_RatesTypeDomain_19d62471-fa75-4fb0-b8f7-da5fea418e73" xlink:to="loc_ppl_GasRatesMember_ae20a4db-bd88-4411-916f-9cc6a72a7b5d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_46343a1c-20bc-4977-8ddd-41a0f97d51fa" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CounterpartyNameAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:to="loc_srt_CounterpartyNameAxis_46343a1c-20bc-4977-8ddd-41a0f97d51fa" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_46343a1c-20bc-4977-8ddd-41a0f97d51fa_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_46343a1c-20bc-4977-8ddd-41a0f97d51fa" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_46343a1c-20bc-4977-8ddd-41a0f97d51fa_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_d00038b9-1744-4332-92ba-bdb4a37c98fe" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_46343a1c-20bc-4977-8ddd-41a0f97d51fa" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_d00038b9-1744-4332-92ba-bdb4a37c98fe" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UnaffiliatedThirdPartyEntityMember_12fcbade-8858-4e8a-9039-e2d943a9a825" xlink:href="ppl-20210331.xsd#ppl_UnaffiliatedThirdPartyEntityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_d00038b9-1744-4332-92ba-bdb4a37c98fe" xlink:to="loc_ppl_UnaffiliatedThirdPartyEntityMember_12fcbade-8858-4e8a-9039-e2d943a9a825" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TaxReformAxis_11ed1078-e8bb-4521-b06f-b6d16231cd45" xlink:href="ppl-20210331.xsd#ppl_TaxReformAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:to="loc_ppl_TaxReformAxis_11ed1078-e8bb-4521-b06f-b6d16231cd45" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TaxReformDomain_11ed1078-e8bb-4521-b06f-b6d16231cd45_default" xlink:href="ppl-20210331.xsd#ppl_TaxReformDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_TaxReformAxis_11ed1078-e8bb-4521-b06f-b6d16231cd45" xlink:to="loc_ppl_TaxReformDomain_11ed1078-e8bb-4521-b06f-b6d16231cd45_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TaxReformDomain_623708d8-dba1-4ea6-a60e-eadeefaecf87" xlink:href="ppl-20210331.xsd#ppl_TaxReformDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_TaxReformAxis_11ed1078-e8bb-4521-b06f-b6d16231cd45" xlink:to="loc_ppl_TaxReformDomain_623708d8-dba1-4ea6-a60e-eadeefaecf87" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_1df3c0eb-6dbd-464a-a8a8-9eb790044e4b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_1df3c0eb-6dbd-464a-a8a8-9eb790044e4b" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_1df3c0eb-6dbd-464a-a8a8-9eb790044e4b_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_1df3c0eb-6dbd-464a-a8a8-9eb790044e4b" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_1df3c0eb-6dbd-464a-a8a8-9eb790044e4b_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_a173461b-1740-4bf5-ab48-097c804a3245" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_1df3c0eb-6dbd-464a-a8a8-9eb790044e4b" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_a173461b-1740-4bf5-ab48-097c804a3245" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_3e0f52cd-0f3c-4b6f-aded-12790e3e6955" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_a173461b-1740-4bf5-ab48-097c804a3245" xlink:to="loc_us-gaap_SubsequentEventMember_3e0f52cd-0f3c-4b6f-aded-12790e3e6955" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_141edee5-a660-4218-ab8c-2a7a2377b876" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_StatementScenarioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_RegulatoryMattersTable_bc2c171b-cc5d-4208-aa0d-5ed1df62f0d5" xlink:to="loc_srt_StatementScenarioAxis_141edee5-a660-4218-ab8c-2a7a2377b876" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_141edee5-a660-4218-ab8c-2a7a2377b876_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_141edee5-a660-4218-ab8c-2a7a2377b876" xlink:to="loc_srt_ScenarioUnspecifiedDomain_141edee5-a660-4218-ab8c-2a7a2377b876_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_e625247b-10cf-4e2e-9d83-459a30e70214" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_141edee5-a660-4218-ab8c-2a7a2377b876" xlink:to="loc_srt_ScenarioUnspecifiedDomain_e625247b-10cf-4e2e-9d83-459a30e70214" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_6bd7fb35-bf28-4171-9595-fe1df2668639" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioForecastMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_e625247b-10cf-4e2e-9d83-459a30e70214" xlink:to="loc_srt_ScenarioForecastMember_6bd7fb35-bf28-4171-9595-fe1df2668639" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/UtilityRateRegulationOtherDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#UtilityRateRegulationOtherDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/UtilityRateRegulationOtherDetails" xlink:type="extended" id="i19d0f19a85fe4dc5985cbd787356fabe_UtilityRateRegulationOtherDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_PurchasesOfAccountsReceivableLineItems_32e59aaa-2e7c-4e30-8f27-2f6807132d9b" xlink:href="ppl-20210331.xsd#ppl_PurchasesOfAccountsReceivableLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PurchasesOfAccountsReceivable_f09b8140-50bf-424d-a215-ee611ebfbb6a" xlink:href="ppl-20210331.xsd#ppl_PurchasesOfAccountsReceivable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_PurchasesOfAccountsReceivableLineItems_32e59aaa-2e7c-4e30-8f27-2f6807132d9b" xlink:to="loc_ppl_PurchasesOfAccountsReceivable_f09b8140-50bf-424d-a215-ee611ebfbb6a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PurchasesOfAccountsReceivableTable_8c3529f0-ca6d-45fb-9556-f31f3c5098d5" xlink:href="ppl-20210331.xsd#ppl_PurchasesOfAccountsReceivableTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_PurchasesOfAccountsReceivableLineItems_32e59aaa-2e7c-4e30-8f27-2f6807132d9b" xlink:to="loc_ppl_PurchasesOfAccountsReceivableTable_8c3529f0-ca6d-45fb-9556-f31f3c5098d5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_59c54b14-3a13-4bb4-9f38-151ca23cd2d1" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_PurchasesOfAccountsReceivableTable_8c3529f0-ca6d-45fb-9556-f31f3c5098d5" xlink:to="loc_dei_LegalEntityAxis_59c54b14-3a13-4bb4-9f38-151ca23cd2d1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_59c54b14-3a13-4bb4-9f38-151ca23cd2d1_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_59c54b14-3a13-4bb4-9f38-151ca23cd2d1" xlink:to="loc_dei_EntityDomain_59c54b14-3a13-4bb4-9f38-151ca23cd2d1_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_29aaac1a-b361-4ca8-8b4f-e35be12d0a68" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_59c54b14-3a13-4bb4-9f38-151ca23cd2d1" xlink:to="loc_dei_EntityDomain_29aaac1a-b361-4ca8-8b4f-e35be12d0a68" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_bbcee7c7-f1ce-4f04-a828-481b7837f378" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_29aaac1a-b361-4ca8-8b4f-e35be12d0a68" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_bbcee7c7-f1ce-4f04-a828-481b7837f378" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_2e79215b-3ae0-4fc1-b475-899ae0a5b194" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_PurchasesOfAccountsReceivableTable_8c3529f0-ca6d-45fb-9556-f31f3c5098d5" xlink:to="loc_ppl_ByCompanyAxis_2e79215b-3ae0-4fc1-b475-899ae0a5b194" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_2e79215b-3ae0-4fc1-b475-899ae0a5b194_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_2e79215b-3ae0-4fc1-b475-899ae0a5b194" xlink:to="loc_ppl_ByCompanyDomain_2e79215b-3ae0-4fc1-b475-899ae0a5b194_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_bb80ab27-1b4d-4a58-b6db-9f433dd2ba28" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_2e79215b-3ae0-4fc1-b475-899ae0a5b194" xlink:to="loc_ppl_ByCompanyDomain_bb80ab27-1b4d-4a58-b6db-9f433dd2ba28" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_3a16e512-adf3-4860-8387-218cfb20138b" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_bb80ab27-1b4d-4a58-b6db-9f433dd2ba28" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_3a16e512-adf3-4860-8387-218cfb20138b" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_e8d8bc84-2177-4689-b70d-8ea403a0b4fc" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CounterpartyNameAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_PurchasesOfAccountsReceivableTable_8c3529f0-ca6d-45fb-9556-f31f3c5098d5" xlink:to="loc_srt_CounterpartyNameAxis_e8d8bc84-2177-4689-b70d-8ea403a0b4fc" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_e8d8bc84-2177-4689-b70d-8ea403a0b4fc_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_e8d8bc84-2177-4689-b70d-8ea403a0b4fc" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_e8d8bc84-2177-4689-b70d-8ea403a0b4fc_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_298ea220-2282-4bc3-bc19-0904f859682d" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_e8d8bc84-2177-4689-b70d-8ea403a0b4fc" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_298ea220-2282-4bc3-bc19-0904f859682d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UnaffiliatedThirdPartyEntityMember_666a486f-15fd-4da0-82ac-85e19b46ce79" xlink:href="ppl-20210331.xsd#ppl_UnaffiliatedThirdPartyEntityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_298ea220-2282-4bc3-bc19-0904f859682d" xlink:to="loc_ppl_UnaffiliatedThirdPartyEntityMember_666a486f-15fd-4da0-82ac-85e19b46ce79" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/FinancingActivities" xlink:type="simple" xlink:href="ppl-20210331.xsd#FinancingActivities"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FinancingActivities" xlink:type="extended" id="idea370da985848ff92476cbf3ea85ec2_FinancingActivities"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/FinancingActivitiesTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#FinancingActivitiesTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FinancingActivitiesTables" xlink:type="extended" id="i1eb4302b48e148908efaede8bb812685_FinancingActivitiesTables"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/FinancingActivitiesCreditArrangementsDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#FinancingActivitiesCreditArrangementsDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FinancingActivitiesCreditArrangementsDetails" xlink:type="extended" id="i03bdbd22be2a45a087126d66ee0b416b_FinancingActivitiesCreditArrangementsDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_7688fb61-bad3-48bc-a4ea-058d687d1bff" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_63e07014-8286-42c8-b100-e31e33a7e568" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7688fb61-bad3-48bc-a4ea-058d687d1bff" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_63e07014-8286-42c8-b100-e31e33a7e568" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_2b8930dd-5f5e-4ab7-aff6-d00244e74a41" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCredit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7688fb61-bad3-48bc-a4ea-058d687d1bff" xlink:to="loc_us-gaap_LineOfCredit_2b8930dd-5f5e-4ab7-aff6-d00244e74a41" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LineOfCreditFacilityAmountOfLettersOfCreditIssued_b443d691-e8d4-411c-9f89-0cfe4688cab7" xlink:href="ppl-20210331.xsd#ppl_LineOfCreditFacilityAmountOfLettersOfCreditIssued"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7688fb61-bad3-48bc-a4ea-058d687d1bff" xlink:to="loc_ppl_LineOfCreditFacilityAmountOfLettersOfCreditIssued_b443d691-e8d4-411c-9f89-0cfe4688cab7" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_823b0195-be7e-4854-93df-d235df873a0a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7688fb61-bad3-48bc-a4ea-058d687d1bff" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_823b0195-be7e-4854-93df-d235df873a0a" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_a593e760-c09a-41e0-b9b8-777ccca35160" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7688fb61-bad3-48bc-a4ea-058d687d1bff" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_a593e760-c09a-41e0-b9b8-777ccca35160" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LineOfCredit1_6e70077b-c0ff-4f3b-9491-acb546538096" xlink:href="ppl-20210331.xsd#ppl_LineOfCredit1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7688fb61-bad3-48bc-a4ea-058d687d1bff" xlink:to="loc_ppl_LineOfCredit1_6e70077b-c0ff-4f3b-9491-acb546538096" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_a34b1904-cd4d-4325-bc3a-7e2112ed8a9f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCreditFacilityTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7688fb61-bad3-48bc-a4ea-058d687d1bff" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_a34b1904-cd4d-4325-bc3a-7e2112ed8a9f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_324d5cc4-89d5-40e5-b8cd-d08220a2bf30" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a34b1904-cd4d-4325-bc3a-7e2112ed8a9f" xlink:to="loc_dei_LegalEntityAxis_324d5cc4-89d5-40e5-b8cd-d08220a2bf30" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_324d5cc4-89d5-40e5-b8cd-d08220a2bf30_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_324d5cc4-89d5-40e5-b8cd-d08220a2bf30" xlink:to="loc_dei_EntityDomain_324d5cc4-89d5-40e5-b8cd-d08220a2bf30_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_8f416b36-17b9-499f-ad7f-7c64caa43787" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_324d5cc4-89d5-40e5-b8cd-d08220a2bf30" xlink:to="loc_dei_EntityDomain_8f416b36-17b9-499f-ad7f-7c64caa43787" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_92cb799a-6b89-48b2-8fdb-33110070696b" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_8f416b36-17b9-499f-ad7f-7c64caa43787" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_92cb799a-6b89-48b2-8fdb-33110070696b" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_1536923d-ddb8-42ab-9b57-cb8b07450b8d" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_8f416b36-17b9-499f-ad7f-7c64caa43787" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_1536923d-ddb8-42ab-9b57-cb8b07450b8d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_dad458dd-4a21-4ccd-aab2-96473fc3d0ac" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_8f416b36-17b9-499f-ad7f-7c64caa43787" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_dad458dd-4a21-4ccd-aab2-96473fc3d0ac" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_852e32c4-b526-4eb2-8bdd-28b048da5ecc" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_8f416b36-17b9-499f-ad7f-7c64caa43787" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_852e32c4-b526-4eb2-8bdd-28b048da5ecc" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_6fb2d9a9-4caa-420f-a23f-2960eee38584" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a34b1904-cd4d-4325-bc3a-7e2112ed8a9f" xlink:to="loc_ppl_ByCompanyAxis_6fb2d9a9-4caa-420f-a23f-2960eee38584" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_6fb2d9a9-4caa-420f-a23f-2960eee38584_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_6fb2d9a9-4caa-420f-a23f-2960eee38584" xlink:to="loc_ppl_ByCompanyDomain_6fb2d9a9-4caa-420f-a23f-2960eee38584_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_6fb2d9a9-4caa-420f-a23f-2960eee38584" xlink:to="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WesternPowerDistributionPublicLimitedCompanyMember_dc533501-e464-49ca-bf04-1359ab514e4e" xlink:href="ppl-20210331.xsd#ppl_WesternPowerDistributionPublicLimitedCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:to="loc_ppl_WesternPowerDistributionPublicLimitedCompanyMember_dc533501-e464-49ca-bf04-1359ab514e4e" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WpdSouthWestMember_1868d438-3727-467e-9285-1dd6c72eb23c" xlink:href="ppl-20210331.xsd#ppl_WpdSouthWestMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:to="loc_ppl_WpdSouthWestMember_1868d438-3727-467e-9285-1dd6c72eb23c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WPDSouthWalesMember_00f5735e-d02e-4320-bd97-41ea7d45eb38" xlink:href="ppl-20210331.xsd#ppl_WPDSouthWalesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:to="loc_ppl_WPDSouthWalesMember_00f5735e-d02e-4320-bd97-41ea7d45eb38" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WpdEastMidlandsMember_9057ba7d-68d2-4367-bd87-4b9e573cd42a" xlink:href="ppl-20210331.xsd#ppl_WpdEastMidlandsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:to="loc_ppl_WpdEastMidlandsMember_9057ba7d-68d2-4367-bd87-4b9e573cd42a" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WpdWestMidlandsMember_0a30806f-08ab-48f6-af18-6d239250576c" xlink:href="ppl-20210331.xsd#ppl_WpdWestMidlandsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:to="loc_ppl_WpdWestMidlandsMember_0a30806f-08ab-48f6-af18-6d239250576c" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplCapitalFundingMember_f4bc9750-1eda-40c8-8894-d5fde39f4d58" xlink:href="ppl-20210331.xsd#ppl_PplCapitalFundingMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:to="loc_ppl_PplCapitalFundingMember_f4bc9750-1eda-40c8-8894-d5fde39f4d58" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_dbe2844b-bcf1-429f-b582-10e38fffc6f7" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_dbe2844b-bcf1-429f-b582-10e38fffc6f7" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_82ee8272-1b93-49d2-9c49-f8d6cad0ad53" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:to="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_82ee8272-1b93-49d2-9c49-f8d6cad0ad53" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_5b71b4ed-fa7f-48b3-b5bb-bcd8ba240540" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_5b71b4ed-fa7f-48b3-b5bb-bcd8ba240540" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_efdce637-6c66-4d2a-81b0-84f033385b67" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_29b3235f-da91-41af-b30a-c94131cad80e" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_efdce637-6c66-4d2a-81b0-84f033385b67" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_e1962e86-22d1-4d19-a0fb-c678084f49ae" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_StatementGeographicalAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a34b1904-cd4d-4325-bc3a-7e2112ed8a9f" xlink:to="loc_srt_StatementGeographicalAxis_e1962e86-22d1-4d19-a0fb-c678084f49ae" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_e1962e86-22d1-4d19-a0fb-c678084f49ae_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_SegmentGeographicalDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_e1962e86-22d1-4d19-a0fb-c678084f49ae" xlink:to="loc_srt_SegmentGeographicalDomain_e1962e86-22d1-4d19-a0fb-c678084f49ae_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_130b84d7-787f-438b-997e-b0c7ae58b78f" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_SegmentGeographicalDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_e1962e86-22d1-4d19-a0fb-c678084f49ae" xlink:to="loc_srt_SegmentGeographicalDomain_130b84d7-787f-438b-997e-b0c7ae58b78f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_country_GB_689232e2-ded5-493e-a1fa-6438238e5791" xlink:href="https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd#country_GB"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_130b84d7-787f-438b-997e-b0c7ae58b78f" xlink:to="loc_country_GB_689232e2-ded5-493e-a1fa-6438238e5791" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_country_US_210eee5e-5d37-4885-85e0-da43fdc6d22b" xlink:href="https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd#country_US"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_130b84d7-787f-438b-997e-b0c7ae58b78f" xlink:to="loc_country_US_210eee5e-5d37-4885-85e0-da43fdc6d22b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CreditFacilityDescriptionAxis_e2d89d7a-d868-4682-b51c-daa9281a9418" xlink:href="ppl-20210331.xsd#ppl_CreditFacilityDescriptionAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a34b1904-cd4d-4325-bc3a-7e2112ed8a9f" xlink:to="loc_ppl_CreditFacilityDescriptionAxis_e2d89d7a-d868-4682-b51c-daa9281a9418" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CreditFacilityDescriptionDomain_e2d89d7a-d868-4682-b51c-daa9281a9418_default" xlink:href="ppl-20210331.xsd#ppl_CreditFacilityDescriptionDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_CreditFacilityDescriptionAxis_e2d89d7a-d868-4682-b51c-daa9281a9418" xlink:to="loc_ppl_CreditFacilityDescriptionDomain_e2d89d7a-d868-4682-b51c-daa9281a9418_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CreditFacilityDescriptionDomain_0be16b67-ce80-4469-abae-1d271123990a" xlink:href="ppl-20210331.xsd#ppl_CreditFacilityDescriptionDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_CreditFacilityDescriptionAxis_e2d89d7a-d868-4682-b51c-daa9281a9418" xlink:to="loc_ppl_CreditFacilityDescriptionDomain_0be16b67-ce80-4469-abae-1d271123990a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SyndicatedCreditFacilityMember_73e43c08-58ae-436f-a08a-21ebcf20dc1c" xlink:href="ppl-20210331.xsd#ppl_SyndicatedCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_CreditFacilityDescriptionDomain_0be16b67-ce80-4469-abae-1d271123990a" xlink:to="loc_ppl_SyndicatedCreditFacilityMember_73e43c08-58ae-436f-a08a-21ebcf20dc1c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UncommittedCreditFacilitiesMember_0d04c73e-9482-4bad-9192-88c0f3ca5c8c" xlink:href="ppl-20210331.xsd#ppl_UncommittedCreditFacilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_CreditFacilityDescriptionDomain_0be16b67-ce80-4469-abae-1d271123990a" xlink:to="loc_ppl_UncommittedCreditFacilitiesMember_0d04c73e-9482-4bad-9192-88c0f3ca5c8c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TermLoanFacilityMember_aab9dbfa-ff1e-4278-bd6a-9557b61f40fa" xlink:href="ppl-20210331.xsd#ppl_TermLoanFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_CreditFacilityDescriptionDomain_0be16b67-ce80-4469-abae-1d271123990a" xlink:to="loc_ppl_TermLoanFacilityMember_aab9dbfa-ff1e-4278-bd6a-9557b61f40fa" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TermLoanFacility1Member_2c9ec0d4-5c56-47ba-adda-984d07f60078" xlink:href="ppl-20210331.xsd#ppl_TermLoanFacility1Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_CreditFacilityDescriptionDomain_0be16b67-ce80-4469-abae-1d271123990a" xlink:to="loc_ppl_TermLoanFacility1Member_2c9ec0d4-5c56-47ba-adda-984d07f60078" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TermLoanFacility2Member_e4718c25-c305-4bb8-a705-dafb2ffda11b" xlink:href="ppl-20210331.xsd#ppl_TermLoanFacility2Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_CreditFacilityDescriptionDomain_0be16b67-ce80-4469-abae-1d271123990a" xlink:to="loc_ppl_TermLoanFacility2Member_e4718c25-c305-4bb8-a705-dafb2ffda11b" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_d16a0de3-4f39-42d7-8d8d-ef69dadd82c1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_CreditFacilityDescriptionDomain_0be16b67-ce80-4469-abae-1d271123990a" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_d16a0de3-4f39-42d7-8d8d-ef69dadd82c1" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_BilateralCreditFacilityMember_235fee60-0701-45fd-8a6f-feb68146dbb1" xlink:href="ppl-20210331.xsd#ppl_BilateralCreditFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_CreditFacilityDescriptionDomain_0be16b67-ce80-4469-abae-1d271123990a" xlink:to="loc_ppl_BilateralCreditFacilityMember_235fee60-0701-45fd-8a6f-feb68146dbb1" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_BilateralCreditFacility2Member_0bfd63cc-fd2c-41d4-bc97-0918ac3a0fad" xlink:href="ppl-20210331.xsd#ppl_BilateralCreditFacility2Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_CreditFacilityDescriptionDomain_0be16b67-ce80-4469-abae-1d271123990a" xlink:to="loc_ppl_BilateralCreditFacility2Member_0bfd63cc-fd2c-41d4-bc97-0918ac3a0fad" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_c55ba52d-2363-42ee-bc48-97d07dd428a9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a34b1904-cd4d-4325-bc3a-7e2112ed8a9f" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_c55ba52d-2363-42ee-bc48-97d07dd428a9" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_c55ba52d-2363-42ee-bc48-97d07dd428a9_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_c55ba52d-2363-42ee-bc48-97d07dd428a9" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_c55ba52d-2363-42ee-bc48-97d07dd428a9_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_198147df-5a0d-416c-bf3b-c209fe11eac1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_c55ba52d-2363-42ee-bc48-97d07dd428a9" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_198147df-5a0d-416c-bf3b-c209fe11eac1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_383219d5-ed4b-4547-8859-7852953ed3f2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_198147df-5a0d-416c-bf3b-c209fe11eac1" xlink:to="loc_us-gaap_SubsequentEventMember_383219d5-ed4b-4547-8859-7852953ed3f2" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/FinancingActivitiesShorttermDebtDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#FinancingActivitiesShorttermDebtDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FinancingActivitiesShorttermDebtDetails" xlink:type="extended" id="i0e65b52761a6475689493e54dbba6746_FinancingActivitiesShorttermDebtDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtLineItems_7c57c535-8728-42a6-8aa6-1aa49da3bc6e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermDebtLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtWeightedAverageInterestRate_3d1cea62-a8f1-4467-b4a7-41a0110f05e1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermDebtWeightedAverageInterestRate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems_7c57c535-8728-42a6-8aa6-1aa49da3bc6e" xlink:to="loc_us-gaap_ShortTermDebtWeightedAverageInterestRate_3d1cea62-a8f1-4467-b4a7-41a0110f05e1" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ShortTermDebtMaximumBorrowingCapacity_82fa3cc5-515a-447d-9151-d483e7eda646" xlink:href="ppl-20210331.xsd#ppl_ShortTermDebtMaximumBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems_7c57c535-8728-42a6-8aa6-1aa49da3bc6e" xlink:to="loc_ppl_ShortTermDebtMaximumBorrowingCapacity_82fa3cc5-515a-447d-9151-d483e7eda646" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaper_9b89cd4d-b370-4845-9203-0c80cbb601fa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaper"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems_7c57c535-8728-42a6-8aa6-1aa49da3bc6e" xlink:to="loc_us-gaap_CommercialPaper_9b89cd4d-b370-4845-9203-0c80cbb601fa" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CommercialPaperUnusedBorrowingCapacityAmount_53217394-c52f-40db-b5b0-4cd494ecf895" xlink:href="ppl-20210331.xsd#ppl_CommercialPaperUnusedBorrowingCapacityAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems_7c57c535-8728-42a6-8aa6-1aa49da3bc6e" xlink:to="loc_ppl_CommercialPaperUnusedBorrowingCapacityAmount_53217394-c52f-40db-b5b0-4cd494ecf895" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShortTermDebtTable_ce78f8f2-39f8-42ee-ab47-b101d5e98685" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShortTermDebtTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShortTermDebtLineItems_7c57c535-8728-42a6-8aa6-1aa49da3bc6e" xlink:to="loc_us-gaap_ScheduleOfShortTermDebtTable_ce78f8f2-39f8-42ee-ab47-b101d5e98685" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_5f9e50ac-4a5f-4bdd-ba71-659d55ee1a9c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable_ce78f8f2-39f8-42ee-ab47-b101d5e98685" xlink:to="loc_dei_LegalEntityAxis_5f9e50ac-4a5f-4bdd-ba71-659d55ee1a9c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_5f9e50ac-4a5f-4bdd-ba71-659d55ee1a9c_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_5f9e50ac-4a5f-4bdd-ba71-659d55ee1a9c" xlink:to="loc_dei_EntityDomain_5f9e50ac-4a5f-4bdd-ba71-659d55ee1a9c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_bd01e36f-4be6-4167-af29-c014d8c43011" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_5f9e50ac-4a5f-4bdd-ba71-659d55ee1a9c" xlink:to="loc_dei_EntityDomain_bd01e36f-4be6-4167-af29-c014d8c43011" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_d6e9c577-50c5-4f62-bf05-1c97d6cee73e" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_bd01e36f-4be6-4167-af29-c014d8c43011" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_d6e9c577-50c5-4f62-bf05-1c97d6cee73e" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_9fc707fd-31d3-44f9-a4ff-4eec8c1986ed" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_bd01e36f-4be6-4167-af29-c014d8c43011" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_9fc707fd-31d3-44f9-a4ff-4eec8c1986ed" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_0e7e2ef3-bf46-4116-a66c-4fff6a8ce090" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_bd01e36f-4be6-4167-af29-c014d8c43011" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_0e7e2ef3-bf46-4116-a66c-4fff6a8ce090" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_ed77af86-4498-4945-bbe2-589491b36ace" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_bd01e36f-4be6-4167-af29-c014d8c43011" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_ed77af86-4498-4945-bbe2-589491b36ace" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_a47a6dfe-2917-40eb-a8b8-97117fbfa687" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable_ce78f8f2-39f8-42ee-ab47-b101d5e98685" xlink:to="loc_ppl_ByCompanyAxis_a47a6dfe-2917-40eb-a8b8-97117fbfa687" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_a47a6dfe-2917-40eb-a8b8-97117fbfa687_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_a47a6dfe-2917-40eb-a8b8-97117fbfa687" xlink:to="loc_ppl_ByCompanyDomain_a47a6dfe-2917-40eb-a8b8-97117fbfa687_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_0bb694d7-8515-4344-9c5c-582c0ffcbf9d" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_a47a6dfe-2917-40eb-a8b8-97117fbfa687" xlink:to="loc_ppl_ByCompanyDomain_0bb694d7-8515-4344-9c5c-582c0ffcbf9d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplCapitalFundingMember_75f5e416-27af-4b9c-9ab0-4d66fa6d0e16" xlink:href="ppl-20210331.xsd#ppl_PplCapitalFundingMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_0bb694d7-8515-4344-9c5c-582c0ffcbf9d" xlink:to="loc_ppl_PplCapitalFundingMember_75f5e416-27af-4b9c-9ab0-4d66fa6d0e16" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_6cc05912-0bf4-4d0a-a292-756b1dadc02d" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_0bb694d7-8515-4344-9c5c-582c0ffcbf9d" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_6cc05912-0bf4-4d0a-a292-756b1dadc02d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_4fe3bab8-19a4-4f4a-b41d-eac48b4b46d4" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_0bb694d7-8515-4344-9c5c-582c0ffcbf9d" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_4fe3bab8-19a4-4f4a-b41d-eac48b4b46d4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_03e0296f-434d-4177-892d-5ccaa22589c6" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_0bb694d7-8515-4344-9c5c-582c0ffcbf9d" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_03e0296f-434d-4177-892d-5ccaa22589c6" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_d71a5126-ae0e-4019-8844-04c1683cca72" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable_ce78f8f2-39f8-42ee-ab47-b101d5e98685" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_d71a5126-ae0e-4019-8844-04c1683cca72" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_d71a5126-ae0e-4019-8844-04c1683cca72_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_d71a5126-ae0e-4019-8844-04c1683cca72" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_d71a5126-ae0e-4019-8844-04c1683cca72_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_3f71a8c6-439c-40db-9ae5-988f9947b9ad" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_d71a5126-ae0e-4019-8844-04c1683cca72" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_3f71a8c6-439c-40db-9ae5-988f9947b9ad" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_8af7e137-dccc-410d-8a8f-bc12561b12a8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_3f71a8c6-439c-40db-9ae5-988f9947b9ad" xlink:to="loc_us-gaap_CommercialPaperMember_8af7e137-dccc-410d-8a8f-bc12561b12a8" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ReclassifiedDebtAxis_2d4f80ee-4d74-4028-9b77-a59f4af509e8" xlink:href="ppl-20210331.xsd#ppl_ReclassifiedDebtAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable_ce78f8f2-39f8-42ee-ab47-b101d5e98685" xlink:to="loc_ppl_ReclassifiedDebtAxis_2d4f80ee-4d74-4028-9b77-a59f4af509e8" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ReclassifiedDebtDomain_2d4f80ee-4d74-4028-9b77-a59f4af509e8_default" xlink:href="ppl-20210331.xsd#ppl_ReclassifiedDebtDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ReclassifiedDebtAxis_2d4f80ee-4d74-4028-9b77-a59f4af509e8" xlink:to="loc_ppl_ReclassifiedDebtDomain_2d4f80ee-4d74-4028-9b77-a59f4af509e8_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ReclassifiedDebtDomain_f8fa649f-d461-4555-a7d8-a12114070ea5" xlink:href="ppl-20210331.xsd#ppl_ReclassifiedDebtDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ReclassifiedDebtAxis_2d4f80ee-4d74-4028-9b77-a59f4af509e8" xlink:to="loc_ppl_ReclassifiedDebtDomain_f8fa649f-d461-4555-a7d8-a12114070ea5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_1f165480-6ca4-4092-8beb-e11ff28b760f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ReclassifiedDebtDomain_f8fa649f-d461-4555-a7d8-a12114070ea5" xlink:to="loc_us-gaap_CommercialPaperMember_1f165480-6ca4-4092-8beb-e11ff28b760f" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/FinancingActivitiesLongtermDebtDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#FinancingActivitiesLongtermDebtDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FinancingActivitiesLongtermDebtDetails" xlink:type="extended" id="ie2df8d911d7e4f63a317212718af6f86_FinancingActivitiesLongtermDebtDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_aa6acab4-5686-4f0a-a209-ae2a282a5534" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentsAbstract_acc793bf-b9d4-4a90-9555-c45a07dbc9ed" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_aa6acab4-5686-4f0a-a209-ae2a282a5534" xlink:to="loc_us-gaap_DebtInstrumentsAbstract_acc793bf-b9d4-4a90-9555-c45a07dbc9ed" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_5e864b54-8597-4901-bc5a-f7593a426d7a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_acc793bf-b9d4-4a90-9555-c45a07dbc9ed" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_5e864b54-8597-4901-bc5a-f7593a426d7a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_d6571001-0759-4e49-9bcd-086ac043a4f4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCredit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_acc793bf-b9d4-4a90-9555-c45a07dbc9ed" xlink:to="loc_us-gaap_LineOfCredit_d6571001-0759-4e49-9bcd-086ac043a4f4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_5224d369-fdbd-4420-b9b6-f7876050048f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_acc793bf-b9d4-4a90-9555-c45a07dbc9ed" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_5224d369-fdbd-4420-b9b6-f7876050048f" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_44075bd5-1674-4175-8059-b10592cd8c23" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_acc793bf-b9d4-4a90-9555-c45a07dbc9ed" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_44075bd5-1674-4175-8059-b10592cd8c23" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_5da1bf77-d5eb-42cd-8b2a-1333a99d519f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_acc793bf-b9d4-4a90-9555-c45a07dbc9ed" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_5da1bf77-d5eb-42cd-8b2a-1333a99d519f" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSecuredDebt_da9d436f-206d-4a2c-85d4-9238397d485c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSecuredDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_acc793bf-b9d4-4a90-9555-c45a07dbc9ed" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSecuredDebt_da9d436f-206d-4a2c-85d4-9238397d485c" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_c266a506-a715-499e-9e12-897abcf4a201" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTerm"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_acc793bf-b9d4-4a90-9555-c45a07dbc9ed" xlink:to="loc_us-gaap_DebtInstrumentTerm_c266a506-a715-499e-9e12-897abcf4a201" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfFirstMortgageBond_164c562d-1184-4b7c-8fae-db1e4bc7d8ef" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfFirstMortgageBond"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_acc793bf-b9d4-4a90-9555-c45a07dbc9ed" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfFirstMortgageBond_164c562d-1184-4b7c-8fae-db1e4bc7d8ef" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_9c2f80af-9672-4d14-b381-00176bfbb742" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_aa6acab4-5686-4f0a-a209-ae2a282a5534" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_9c2f80af-9672-4d14-b381-00176bfbb742" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_49695ee3-d2e9-4b2e-82be-b6ed71ee4b9c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_aa6acab4-5686-4f0a-a209-ae2a282a5534" xlink:to="loc_us-gaap_DebtInstrumentTable_49695ee3-d2e9-4b2e-82be-b6ed71ee4b9c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_031d9fb7-e29c-42c2-bb11-3f609cdb9338" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_49695ee3-d2e9-4b2e-82be-b6ed71ee4b9c" xlink:to="loc_dei_LegalEntityAxis_031d9fb7-e29c-42c2-bb11-3f609cdb9338" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_031d9fb7-e29c-42c2-bb11-3f609cdb9338_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_031d9fb7-e29c-42c2-bb11-3f609cdb9338" xlink:to="loc_dei_EntityDomain_031d9fb7-e29c-42c2-bb11-3f609cdb9338_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_3a2b3f24-c01f-475c-aa19-93906e47136b" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_031d9fb7-e29c-42c2-bb11-3f609cdb9338" xlink:to="loc_dei_EntityDomain_3a2b3f24-c01f-475c-aa19-93906e47136b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_dad9442e-d04f-4cb1-a565-8d8be3892ed1" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_3a2b3f24-c01f-475c-aa19-93906e47136b" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_dad9442e-d04f-4cb1-a565-8d8be3892ed1" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_a6b44c00-1d58-44a7-8a8f-1c6cd99bcc08" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_3a2b3f24-c01f-475c-aa19-93906e47136b" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_a6b44c00-1d58-44a7-8a8f-1c6cd99bcc08" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_68da746e-5250-4e45-9169-015fc59236d8" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_3a2b3f24-c01f-475c-aa19-93906e47136b" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_68da746e-5250-4e45-9169-015fc59236d8" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_eca83720-3839-498c-a4b5-8db8422693bf" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_3a2b3f24-c01f-475c-aa19-93906e47136b" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_eca83720-3839-498c-a4b5-8db8422693bf" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_c0c73203-2a03-49af-a17c-b969954d5d48" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_3a2b3f24-c01f-475c-aa19-93906e47136b" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_c0c73203-2a03-49af-a17c-b969954d5d48" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_91b36de8-c763-4d2d-81af-0c50638d7e85" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_49695ee3-d2e9-4b2e-82be-b6ed71ee4b9c" xlink:to="loc_ppl_ByCompanyAxis_91b36de8-c763-4d2d-81af-0c50638d7e85" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_91b36de8-c763-4d2d-81af-0c50638d7e85_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_91b36de8-c763-4d2d-81af-0c50638d7e85" xlink:to="loc_ppl_ByCompanyDomain_91b36de8-c763-4d2d-81af-0c50638d7e85_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_91b36de8-c763-4d2d-81af-0c50638d7e85" xlink:to="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WpdEastMidlandsMember_3c660994-ce57-4f28-9643-c42623906390" xlink:href="ppl-20210331.xsd#ppl_WpdEastMidlandsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:to="loc_ppl_WpdEastMidlandsMember_3c660994-ce57-4f28-9643-c42623906390" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WesternPowerDistributionPublicLimitedCompanyMember_5aa69e9e-c0e6-44c0-8e5b-32016a39a599" xlink:href="ppl-20210331.xsd#ppl_WesternPowerDistributionPublicLimitedCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:to="loc_ppl_WesternPowerDistributionPublicLimitedCompanyMember_5aa69e9e-c0e6-44c0-8e5b-32016a39a599" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WpdWestMidlandsMember_64938fda-6784-4375-b2fe-451dc5379e36" xlink:href="ppl-20210331.xsd#ppl_WpdWestMidlandsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:to="loc_ppl_WpdWestMidlandsMember_64938fda-6784-4375-b2fe-451dc5379e36" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_31180855-0ede-4556-8963-3fa4d51a4b52" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_31180855-0ede-4556-8963-3fa4d51a4b52" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplCapitalFundingMember_8404961a-c588-42fd-bbd6-e056a1c5555c" xlink:href="ppl-20210331.xsd#ppl_PplCapitalFundingMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:to="loc_ppl_PplCapitalFundingMember_8404961a-c588-42fd-bbd6-e056a1c5555c" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_a65b1d78-0528-4607-81fb-07273153f1b1" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:to="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_a65b1d78-0528-4607-81fb-07273153f1b1" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_d7de524b-73b0-40f9-a4e1-0d8376f8b26a" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_d7de524b-73b0-40f9-a4e1-0d8376f8b26a" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_d408c9ad-097e-4070-baa5-c20e8d216d0c" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_d408c9ad-097e-4070-baa5-c20e8d216d0c" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_8a38c324-198e-41f5-840b-f9a440fc9e6b" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_8a38c324-198e-41f5-840b-f9a440fc9e6b" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WPDSouthWalesMember_1c0a4e56-e528-419d-9e87-2b093c93f29e" xlink:href="ppl-20210331.xsd#ppl_WPDSouthWalesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_55479393-f9b1-4c8d-9606-3b2e0f009cc8" xlink:to="loc_ppl_WPDSouthWalesMember_1c0a4e56-e528-419d-9e87-2b093c93f29e" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis_382ea114-5551-4f49-b7a2-33bdc0eae005" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CurrencyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_49695ee3-d2e9-4b2e-82be-b6ed71ee4b9c" xlink:to="loc_srt_CurrencyAxis_382ea114-5551-4f49-b7a2-33bdc0eae005" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_382ea114-5551-4f49-b7a2-33bdc0eae005_default" xlink:href="https://xbrl.sec.gov/currency/2020/currency-2020-01-31.xsd#currency_AllCurrenciesDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CurrencyAxis_382ea114-5551-4f49-b7a2-33bdc0eae005" xlink:to="loc_currency_AllCurrenciesDomain_382ea114-5551-4f49-b7a2-33bdc0eae005_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_e2087e72-de85-40b9-a516-f3b06afde0ac" xlink:href="https://xbrl.sec.gov/currency/2020/currency-2020-01-31.xsd#currency_AllCurrenciesDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CurrencyAxis_382ea114-5551-4f49-b7a2-33bdc0eae005" xlink:to="loc_currency_AllCurrenciesDomain_e2087e72-de85-40b9-a516-f3b06afde0ac" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_16ae9c84-af96-4718-9a90-40477b34bf30" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_49695ee3-d2e9-4b2e-82be-b6ed71ee4b9c" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_16ae9c84-af96-4718-9a90-40477b34bf30" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_16ae9c84-af96-4718-9a90-40477b34bf30_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_16ae9c84-af96-4718-9a90-40477b34bf30" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_16ae9c84-af96-4718-9a90-40477b34bf30_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_389c07e6-b33f-4e92-ad3c-00006b72f8e9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_16ae9c84-af96-4718-9a90-40477b34bf30" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_389c07e6-b33f-4e92-ad3c-00006b72f8e9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_3ceee2a0-6d07-4d06-bb38-66795081bdc8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_389c07e6-b33f-4e92-ad3c-00006b72f8e9" xlink:to="loc_us-gaap_SeniorNotesMember_3ceee2a0-6d07-4d06-bb38-66795081bdc8" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TermLoanFacilityMember_4c398411-eaae-4cdf-8a50-2758b1efc6cf" xlink:href="ppl-20210331.xsd#ppl_TermLoanFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_389c07e6-b33f-4e92-ad3c-00006b72f8e9" xlink:to="loc_ppl_TermLoanFacilityMember_4c398411-eaae-4cdf-8a50-2758b1efc6cf" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NotePayableMember_2c3e10c8-d23a-41b4-86dc-9c9bddb135ec" xlink:href="ppl-20210331.xsd#ppl_NotePayableMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_389c07e6-b33f-4e92-ad3c-00006b72f8e9" xlink:to="loc_ppl_NotePayableMember_2c3e10c8-d23a-41b4-86dc-9c9bddb135ec" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FirstMortgageMember_48a73b2b-36e8-44ef-b766-fb923bc7321d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FirstMortgageMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_389c07e6-b33f-4e92-ad3c-00006b72f8e9" xlink:to="loc_us-gaap_FirstMortgageMember_48a73b2b-36e8-44ef-b766-fb923bc7321d" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_c709ca28-fde6-4d27-b286-e47627955cd2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_49695ee3-d2e9-4b2e-82be-b6ed71ee4b9c" xlink:to="loc_us-gaap_DebtInstrumentAxis_c709ca28-fde6-4d27-b286-e47627955cd2" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_c709ca28-fde6-4d27-b286-e47627955cd2_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_c709ca28-fde6-4d27-b286-e47627955cd2" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_c709ca28-fde6-4d27-b286-e47627955cd2_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_c709ca28-fde6-4d27-b286-e47627955cd2" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TermLoanDue2022Member_95ed0301-3f4e-4913-9ed7-ca82f504fe68" xlink:href="ppl-20210331.xsd#ppl_TermLoanDue2022Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_TermLoanDue2022Member_95ed0301-3f4e-4913-9ed7-ca82f504fe68" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SeniorNotesDue2030Member_6dec4860-7a6c-4ce4-a140-ade16f7137bb" xlink:href="ppl-20210331.xsd#ppl_SeniorNotesDue2030Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_SeniorNotesDue2030Member_6dec4860-7a6c-4ce4-a140-ade16f7137bb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SeniorNotesDue2020Member_dec8977f-57c3-44f4-95f9-65772d6fce81" xlink:href="ppl-20210331.xsd#ppl_SeniorNotesDue2020Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_SeniorNotesDue2020Member_dec8977f-57c3-44f4-95f9-65772d6fce81" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_FirstMortgageBondsDue2050Member_39757cfe-30f0-4777-a95b-3b1654cf0022" xlink:href="ppl-20210331.xsd#ppl_FirstMortgageBondsDue2050Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_FirstMortgageBondsDue2050Member_39757cfe-30f0-4777-a95b-3b1654cf0022" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_FirstMortgageBondsDue2020Member_bf4ea88c-f66e-4125-904d-3e8bb1969801" xlink:href="ppl-20210331.xsd#ppl_FirstMortgageBondsDue2020Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_FirstMortgageBondsDue2020Member_bf4ea88c-f66e-4125-904d-3e8bb1969801" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PollutionControlRevenueRefundingBonds2008SeriesMember_a072a6e1-2f27-420a-9f9a-b2cddb8de6fd" xlink:href="ppl-20210331.xsd#ppl_PollutionControlRevenueRefundingBonds2008SeriesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_PollutionControlRevenueRefundingBonds2008SeriesMember_a072a6e1-2f27-420a-9f9a-b2cddb8de6fd" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_FirstMortgageBondsFloatingRateSeriesDue2023Member_28a8d933-5b49-43f5-849a-1dab590b8b5b" xlink:href="ppl-20210331.xsd#ppl_FirstMortgageBondsFloatingRateSeriesDue2023Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_FirstMortgageBondsFloatingRateSeriesDue2023Member_28a8d933-5b49-43f5-849a-1dab590b8b5b" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PollutionControlRevenueRefundingBonds2016SeriesMember_e9e91c7c-ae19-4d28-9171-6550cf5c5a51" xlink:href="ppl-20210331.xsd#ppl_PollutionControlRevenueRefundingBonds2016SeriesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_PollutionControlRevenueRefundingBonds2016SeriesMember_e9e91c7c-ae19-4d28-9171-6550cf5c5a51" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PollutionControlRevenueRefundingBonds2001SeriesMember_75a6f0ac-c965-451f-b91a-6b3602beab92" xlink:href="ppl-20210331.xsd#ppl_PollutionControlRevenueRefundingBonds2001SeriesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_PollutionControlRevenueRefundingBonds2001SeriesMember_75a6f0ac-c965-451f-b91a-6b3602beab92" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SeniorNotesDue2035Member_ae8e26f3-adb0-4e9f-bc18-6f88375e1587" xlink:href="ppl-20210331.xsd#ppl_SeniorNotesDue2035Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_SeniorNotesDue2035Member_ae8e26f3-adb0-4e9f-bc18-6f88375e1587" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TrimbleCountyPollutionControlRevenueBonds2001SeriesBMember_4fd7443f-36b3-447b-9bc2-b60bf8485b3d" xlink:href="ppl-20210331.xsd#ppl_TrimbleCountyPollutionControlRevenueBonds2001SeriesBMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_TrimbleCountyPollutionControlRevenueBonds2001SeriesBMember_4fd7443f-36b3-447b-9bc2-b60bf8485b3d" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_JeffersonCountyPollutionControlRevenueBonds2001SeriesBMember_4931f234-09f3-42e9-9e4e-ec63917f190b" xlink:href="ppl-20210331.xsd#ppl_JeffersonCountyPollutionControlRevenueBonds2001SeriesBMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_JeffersonCountyPollutionControlRevenueBonds2001SeriesBMember_4931f234-09f3-42e9-9e4e-ec63917f190b" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleJeffersonCountyMetroGovernmentOfKentuckyPollutionControlRevenueBonds2003SeriesAMember_25811949-0c2e-4d82-b43a-ab9c2af606dd" xlink:href="ppl-20210331.xsd#ppl_LouisvilleJeffersonCountyMetroGovernmentOfKentuckyPollutionControlRevenueBonds2003SeriesAMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_aa661c9e-41da-473d-9e67-73cc89bee60c" xlink:to="loc_ppl_LouisvilleJeffersonCountyMetroGovernmentOfKentuckyPollutionControlRevenueBonds2003SeriesAMember_25811949-0c2e-4d82-b43a-ab9c2af606dd" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CreditFacilityDescriptionAxis_fa84732d-4a91-4955-acf8-d1a4837e47d5" xlink:href="ppl-20210331.xsd#ppl_CreditFacilityDescriptionAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_49695ee3-d2e9-4b2e-82be-b6ed71ee4b9c" xlink:to="loc_ppl_CreditFacilityDescriptionAxis_fa84732d-4a91-4955-acf8-d1a4837e47d5" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CreditFacilityDescriptionDomain_fa84732d-4a91-4955-acf8-d1a4837e47d5_default" xlink:href="ppl-20210331.xsd#ppl_CreditFacilityDescriptionDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_CreditFacilityDescriptionAxis_fa84732d-4a91-4955-acf8-d1a4837e47d5" xlink:to="loc_ppl_CreditFacilityDescriptionDomain_fa84732d-4a91-4955-acf8-d1a4837e47d5_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CreditFacilityDescriptionDomain_a2d405fd-2221-4a8e-b99d-c09480256cec" xlink:href="ppl-20210331.xsd#ppl_CreditFacilityDescriptionDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_CreditFacilityDescriptionAxis_fa84732d-4a91-4955-acf8-d1a4837e47d5" xlink:to="loc_ppl_CreditFacilityDescriptionDomain_a2d405fd-2221-4a8e-b99d-c09480256cec" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TermLoanFacilityMember_a7b1b7dd-4f99-4889-b01c-ebcf10d4f0c0" xlink:href="ppl-20210331.xsd#ppl_TermLoanFacilityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_CreditFacilityDescriptionDomain_a2d405fd-2221-4a8e-b99d-c09480256cec" xlink:to="loc_ppl_TermLoanFacilityMember_a7b1b7dd-4f99-4889-b01c-ebcf10d4f0c0" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LongTermDebtActivityAxis_ff1eb7da-19e5-4219-9df3-f8bd6f96c425" xlink:href="ppl-20210331.xsd#ppl_LongTermDebtActivityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_49695ee3-d2e9-4b2e-82be-b6ed71ee4b9c" xlink:to="loc_ppl_LongTermDebtActivityAxis_ff1eb7da-19e5-4219-9df3-f8bd6f96c425" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LongTermDebtActivityDomain_ff1eb7da-19e5-4219-9df3-f8bd6f96c425_default" xlink:href="ppl-20210331.xsd#ppl_LongTermDebtActivityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_LongTermDebtActivityAxis_ff1eb7da-19e5-4219-9df3-f8bd6f96c425" xlink:to="loc_ppl_LongTermDebtActivityDomain_ff1eb7da-19e5-4219-9df3-f8bd6f96c425_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LongTermDebtActivityDomain_95f8f8a6-5a5a-47b9-8830-1d15a0fc3d19" xlink:href="ppl-20210331.xsd#ppl_LongTermDebtActivityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_LongTermDebtActivityAxis_ff1eb7da-19e5-4219-9df3-f8bd6f96c425" xlink:to="loc_ppl_LongTermDebtActivityDomain_95f8f8a6-5a5a-47b9-8830-1d15a0fc3d19" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IntentToRedeemMember_ebb5cc59-22d1-41fd-a4d2-4637e342ab62" xlink:href="ppl-20210331.xsd#ppl_IntentToRedeemMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LongTermDebtActivityDomain_95f8f8a6-5a5a-47b9-8830-1d15a0fc3d19" xlink:to="loc_ppl_IntentToRedeemMember_ebb5cc59-22d1-41fd-a4d2-4637e342ab62" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RedemptionMember_24194f68-e9f5-4b7b-b504-cbd5c9f0aaf4" xlink:href="ppl-20210331.xsd#ppl_RedemptionMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LongTermDebtActivityDomain_95f8f8a6-5a5a-47b9-8830-1d15a0fc3d19" xlink:to="loc_ppl_RedemptionMember_24194f68-e9f5-4b7b-b504-cbd5c9f0aaf4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RemarketedMember_7836f6c7-12eb-427f-b559-70b9c0bb82ac" xlink:href="ppl-20210331.xsd#ppl_RemarketedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LongTermDebtActivityDomain_95f8f8a6-5a5a-47b9-8830-1d15a0fc3d19" xlink:to="loc_ppl_RemarketedMember_7836f6c7-12eb-427f-b559-70b9c0bb82ac" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RepaymentMember_b28ee11e-82e2-4768-a800-3ce6dd2bdced" xlink:href="ppl-20210331.xsd#ppl_RepaymentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LongTermDebtActivityDomain_95f8f8a6-5a5a-47b9-8830-1d15a0fc3d19" xlink:to="loc_ppl_RepaymentMember_b28ee11e-82e2-4768-a800-3ce6dd2bdced" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_6f8a29b6-caa9-44a9-a4f9-350c9042d2f0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_49695ee3-d2e9-4b2e-82be-b6ed71ee4b9c" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_6f8a29b6-caa9-44a9-a4f9-350c9042d2f0" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_6f8a29b6-caa9-44a9-a4f9-350c9042d2f0_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_6f8a29b6-caa9-44a9-a4f9-350c9042d2f0" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_6f8a29b6-caa9-44a9-a4f9-350c9042d2f0_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_db3180c9-57c9-499a-a732-6ca558e42aec" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_6f8a29b6-caa9-44a9-a4f9-350c9042d2f0" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_db3180c9-57c9-499a-a732-6ca558e42aec" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_bc18bda0-9f23-4c77-80ce-f858bc97f04c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_db3180c9-57c9-499a-a732-6ca558e42aec" xlink:to="loc_us-gaap_SubsequentEventMember_bc18bda0-9f23-4c77-80ce-f858bc97f04c" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/FinancingActivitiesEquitySecuritiesDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#FinancingActivitiesEquitySecuritiesDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FinancingActivitiesEquitySecuritiesDetails" xlink:type="extended" id="i4dae47bb5d564c069f992cdf324cf84a_FinancingActivitiesEquitySecuritiesDetails"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/FinancingActivitiesDistributionsDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#FinancingActivitiesDistributionsDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FinancingActivitiesDistributionsDetails" xlink:type="extended" id="i6a231370a1f0412986c451882b44b8dc_FinancingActivitiesDistributionsDetails"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/Leases" xlink:type="simple" xlink:href="ppl-20210331.xsd#Leases"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/Leases" xlink:type="extended" id="i9b73793457da4b468a548225ac04e3cf_Leases">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_ffddb048-becc-44ef-89bc-7bf410172d41" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_250309ed-9736-4400-adeb-b8c135689e3c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_ffddb048-becc-44ef-89bc-7bf410172d41" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_250309ed-9736-4400-adeb-b8c135689e3c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_0d3d1a50-c1bc-4ced-aead-6c75f82fee68" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_250309ed-9736-4400-adeb-b8c135689e3c" xlink:to="loc_dei_LegalEntityAxis_0d3d1a50-c1bc-4ced-aead-6c75f82fee68" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_0d3d1a50-c1bc-4ced-aead-6c75f82fee68_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_0d3d1a50-c1bc-4ced-aead-6c75f82fee68" xlink:to="loc_dei_EntityDomain_0d3d1a50-c1bc-4ced-aead-6c75f82fee68_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_3956cd71-4466-4541-aac4-6f274af64e40" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_0d3d1a50-c1bc-4ced-aead-6c75f82fee68" xlink:to="loc_dei_EntityDomain_3956cd71-4466-4541-aac4-6f274af64e40" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_ff03c091-4015-4c37-93dd-1e5c59f78d79" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_3956cd71-4466-4541-aac4-6f274af64e40" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_ff03c091-4015-4c37-93dd-1e5c59f78d79" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_159eae20-7fec-49c3-b117-33fca35be554" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_3956cd71-4466-4541-aac4-6f274af64e40" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_159eae20-7fec-49c3-b117-33fca35be554" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_c08a81fb-6f10-4516-aaf7-43b9e664e383" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_3956cd71-4466-4541-aac4-6f274af64e40" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_c08a81fb-6f10-4516-aaf7-43b9e664e383" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/LeasesTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#LeasesTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/LeasesTables" xlink:type="extended" id="ic6808dcdf56d4e7e9d755404b9126ce5_LeasesTables">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_f2538e5e-6e0d-45e2-93b7-fca79e609626" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_a00a17bd-177f-4a75-a98c-8596309b57fc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_f2538e5e-6e0d-45e2-93b7-fca79e609626" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_a00a17bd-177f-4a75-a98c-8596309b57fc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_9407e7f7-687b-407f-88cd-4b96419a58be" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_a00a17bd-177f-4a75-a98c-8596309b57fc" xlink:to="loc_dei_LegalEntityAxis_9407e7f7-687b-407f-88cd-4b96419a58be" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_9407e7f7-687b-407f-88cd-4b96419a58be_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_9407e7f7-687b-407f-88cd-4b96419a58be" xlink:to="loc_dei_EntityDomain_9407e7f7-687b-407f-88cd-4b96419a58be_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_b51d20bc-d673-45c8-999c-5f6dd8c386f7" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_9407e7f7-687b-407f-88cd-4b96419a58be" xlink:to="loc_dei_EntityDomain_b51d20bc-d673-45c8-999c-5f6dd8c386f7" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_8a1f7044-d9d2-4504-b70f-5c54cace6e2a" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_b51d20bc-d673-45c8-999c-5f6dd8c386f7" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_8a1f7044-d9d2-4504-b70f-5c54cace6e2a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_8bc4c257-666e-4d20-9693-0748842100f2" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_b51d20bc-d673-45c8-999c-5f6dd8c386f7" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_8bc4c257-666e-4d20-9693-0748842100f2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_741d90e7-a4f5-4ffb-b8e7-181e6f6388f9" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_b51d20bc-d673-45c8-999c-5f6dd8c386f7" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_741d90e7-a4f5-4ffb-b8e7-181e6f6388f9" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/LeasesLesseeDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#LeasesLesseeDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/LeasesLesseeDetails" xlink:type="extended" id="i2ded1748e82248e188d5d4375d7bf668_LeasesLesseeDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_d8716e25-d4f3-447b-8e58-c57254e208a3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCostAbstract_4c29593e-c853-4d93-842d-b35e90a370e5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LeaseCostAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_d8716e25-d4f3-447b-8e58-c57254e208a3" xlink:to="loc_us-gaap_LeaseCostAbstract_4c29593e-c853-4d93-842d-b35e90a370e5" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_5eb2db2f-2537-4087-8441-e7d078cf5404" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_d8716e25-d4f3-447b-8e58-c57254e208a3" xlink:to="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_5eb2db2f-2537-4087-8441-e7d078cf5404" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAndLiabilitiesLesseeAbstract_0a170ce7-6b73-4c3c-ab70-c068dd2d90b2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsAndLiabilitiesLesseeAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_d8716e25-d4f3-447b-8e58-c57254e208a3" xlink:to="loc_us-gaap_AssetsAndLiabilitiesLesseeAbstract_0a170ce7-6b73-4c3c-ab70-c068dd2d90b2" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_db6fa0c5-5cbc-4bbd-ab2f-9c2e3371d799" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_d8716e25-d4f3-447b-8e58-c57254e208a3" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_db6fa0c5-5cbc-4bbd-ab2f-9c2e3371d799" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_977f28fe-a647-47e1-bac4-8f962edb50d6" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_db6fa0c5-5cbc-4bbd-ab2f-9c2e3371d799" xlink:to="loc_dei_LegalEntityAxis_977f28fe-a647-47e1-bac4-8f962edb50d6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_977f28fe-a647-47e1-bac4-8f962edb50d6_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_977f28fe-a647-47e1-bac4-8f962edb50d6" xlink:to="loc_dei_EntityDomain_977f28fe-a647-47e1-bac4-8f962edb50d6_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_420ec10e-efea-4dde-abe3-0ec9583b76df" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_977f28fe-a647-47e1-bac4-8f962edb50d6" xlink:to="loc_dei_EntityDomain_420ec10e-efea-4dde-abe3-0ec9583b76df" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_15673607-a75b-4871-90ca-1132fea88280" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_420ec10e-efea-4dde-abe3-0ec9583b76df" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_15673607-a75b-4871-90ca-1132fea88280" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_3cfe8ded-4c99-43dc-973b-c8028631dc05" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_420ec10e-efea-4dde-abe3-0ec9583b76df" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_3cfe8ded-4c99-43dc-973b-c8028631dc05" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_bf762b20-1006-402a-a6fe-01fe6f92d6b4" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_420ec10e-efea-4dde-abe3-0ec9583b76df" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_bf762b20-1006-402a-a6fe-01fe6f92d6b4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_b631f6a4-a37a-4c79-8156-7655a86df669" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_db6fa0c5-5cbc-4bbd-ab2f-9c2e3371d799" xlink:to="loc_ppl_ByCompanyAxis_b631f6a4-a37a-4c79-8156-7655a86df669" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_b631f6a4-a37a-4c79-8156-7655a86df669_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_b631f6a4-a37a-4c79-8156-7655a86df669" xlink:to="loc_ppl_ByCompanyDomain_b631f6a4-a37a-4c79-8156-7655a86df669_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_b501dc1c-fdf8-443e-9419-992f58321c0e" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_b631f6a4-a37a-4c79-8156-7655a86df669" xlink:to="loc_ppl_ByCompanyDomain_b501dc1c-fdf8-443e-9419-992f58321c0e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_acf363b0-ea6b-4c6f-a63c-53e8d39c2e64" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_b501dc1c-fdf8-443e-9419-992f58321c0e" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_acf363b0-ea6b-4c6f-a63c-53e8d39c2e64" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_bc46df23-cadf-4fcc-a3c8-60ec2ae08292" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_b501dc1c-fdf8-443e-9419-992f58321c0e" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_bc46df23-cadf-4fcc-a3c8-60ec2ae08292" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_7bbb0753-b94d-42ba-8ce7-ce02766f6599" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_db6fa0c5-5cbc-4bbd-ab2f-9c2e3371d799" xlink:to="loc_srt_RangeAxis_7bbb0753-b94d-42ba-8ce7-ce02766f6599" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_7bbb0753-b94d-42ba-8ce7-ce02766f6599_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_7bbb0753-b94d-42ba-8ce7-ce02766f6599" xlink:to="loc_srt_RangeMember_7bbb0753-b94d-42ba-8ce7-ce02766f6599_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_240099ef-ac0e-4ef2-ad59-e7e7cec6589a" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_7bbb0753-b94d-42ba-8ce7-ce02766f6599" xlink:to="loc_srt_RangeMember_240099ef-ac0e-4ef2-ad59-e7e7cec6589a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_104d97d5-24b9-4569-bd5d-94de7efb9ed4" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_240099ef-ac0e-4ef2-ad59-e7e7cec6589a" xlink:to="loc_srt_MinimumMember_104d97d5-24b9-4569-bd5d-94de7efb9ed4" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_d13d4cc2-a779-4d57-b1db-0bac1a693b88" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_240099ef-ac0e-4ef2-ad59-e7e7cec6589a" xlink:to="loc_srt_MaximumMember_d13d4cc2-a779-4d57-b1db-0bac1a693b88" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/LeasesLessorDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#LeasesLessorDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/LeasesLessorDetails" xlink:type="extended" id="i96a10cb8586e44d6a6128d9c24fd32c8_LeasesLessorDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorLeaseDescriptionLineItems_f9b3b6f7-cd3d-442c-ba1d-84133fe68b06" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LessorLeaseDescriptionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorLeaseDescriptionTable_e1ad15d8-07b3-4c32-904b-40381d3a2350" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LessorLeaseDescriptionTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LessorLeaseDescriptionLineItems_f9b3b6f7-cd3d-442c-ba1d-84133fe68b06" xlink:to="loc_us-gaap_LessorLeaseDescriptionTable_e1ad15d8-07b3-4c32-904b-40381d3a2350" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_e8fcb1d5-5e2e-44f0-83be-60cb1d16ae7d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LessorLeaseDescriptionTable_e1ad15d8-07b3-4c32-904b-40381d3a2350" xlink:to="loc_dei_LegalEntityAxis_e8fcb1d5-5e2e-44f0-83be-60cb1d16ae7d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_e8fcb1d5-5e2e-44f0-83be-60cb1d16ae7d_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_e8fcb1d5-5e2e-44f0-83be-60cb1d16ae7d" xlink:to="loc_dei_EntityDomain_e8fcb1d5-5e2e-44f0-83be-60cb1d16ae7d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_7cbebe91-bab5-4b81-9a66-620f00f954ab" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_e8fcb1d5-5e2e-44f0-83be-60cb1d16ae7d" xlink:to="loc_dei_EntityDomain_7cbebe91-bab5-4b81-9a66-620f00f954ab" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_15ca041f-9075-484b-bc29-1c2a5ec13917" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_7cbebe91-bab5-4b81-9a66-620f00f954ab" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_15ca041f-9075-484b-bc29-1c2a5ec13917" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_89f2745f-a819-4abd-aad6-5559b7dbd6a8" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_7cbebe91-bab5-4b81-9a66-620f00f954ab" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_89f2745f-a819-4abd-aad6-5559b7dbd6a8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_1e6c1c7e-5da8-4859-8d7a-3b4fcbbb1673" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_7cbebe91-bab5-4b81-9a66-620f00f954ab" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_1e6c1c7e-5da8-4859-8d7a-3b4fcbbb1673" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_109a752f-a566-4a4e-b927-c0d175abbbe8" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LessorLeaseDescriptionTable_e1ad15d8-07b3-4c32-904b-40381d3a2350" xlink:to="loc_ppl_ByCompanyAxis_109a752f-a566-4a4e-b927-c0d175abbbe8" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_109a752f-a566-4a4e-b927-c0d175abbbe8_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_109a752f-a566-4a4e-b927-c0d175abbbe8" xlink:to="loc_ppl_ByCompanyDomain_109a752f-a566-4a4e-b927-c0d175abbbe8_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_fc547a54-cdc7-4cac-9284-201c7cf541ff" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_109a752f-a566-4a4e-b927-c0d175abbbe8" xlink:to="loc_ppl_ByCompanyDomain_fc547a54-cdc7-4cac-9284-201c7cf541ff" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_69a44ecd-ce3b-4beb-8879-2870ff038c2f" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_fc547a54-cdc7-4cac-9284-201c7cf541ff" xlink:to="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_69a44ecd-ce3b-4beb-8879-2870ff038c2f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_eca02bf8-13bd-4bb1-b91b-24f28e71a525" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_fc547a54-cdc7-4cac-9284-201c7cf541ff" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_eca02bf8-13bd-4bb1-b91b-24f28e71a525" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_d99d9279-e7be-4a66-a525-2635a3c009ff" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_fc547a54-cdc7-4cac-9284-201c7cf541ff" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_d99d9279-e7be-4a66-a525-2635a3c009ff" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/AcquisitionsDevelopmentandDivestitures" xlink:type="simple" xlink:href="ppl-20210331.xsd#AcquisitionsDevelopmentandDivestitures"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AcquisitionsDevelopmentandDivestitures" xlink:type="extended" id="i3151b2a1f0f64692859743644db70f7f_AcquisitionsDevelopmentandDivestitures"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/AcquisitionsDevelopmentandDivestituresTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#AcquisitionsDevelopmentandDivestituresTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AcquisitionsDevelopmentandDivestituresTables" xlink:type="extended" id="id612919406a44baf8bd3ce038b82edcf_AcquisitionsDevelopmentandDivestituresTables"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/AcquisitionsDevelopmentandDivestituresDiscontinuedOperationsDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#AcquisitionsDevelopmentandDivestituresDiscontinuedOperationsDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AcquisitionsDevelopmentandDivestituresDiscontinuedOperationsDetails" xlink:type="extended" id="if8eb4e25816f47ecb28d55c51682d58d_AcquisitionsDevelopmentandDivestituresDiscontinuedOperationsDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_3498fe44-d72b-482b-acfb-0e93e90112b1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract_7f7c840b-a8c4-4031-8ffd-848f52bcb722" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_3498fe44-d72b-482b-acfb-0e93e90112b1" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract_7f7c840b-a8c4-4031-8ffd-848f52bcb722" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_91212278-c4f0-4d3a-ac01-1744592c71e1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromDivestitureOfBusinesses"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract_7f7c840b-a8c4-4031-8ffd-848f52bcb722" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_91212278-c4f0-4d3a-ac01-1744592c71e1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ProceedsFromDailyDividendDivestitureOfBusiness_fbfb323b-7655-4983-8921-5bc23d88a690" xlink:href="ppl-20210331.xsd#ppl_ProceedsFromDailyDividendDivestitureOfBusiness"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract_7f7c840b-a8c4-4031-8ffd-848f52bcb722" xlink:to="loc_ppl_ProceedsFromDailyDividendDivestitureOfBusiness_fbfb323b-7655-4983-8921-5bc23d88a690" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_fa6dbbc7-fbb2-4f20-8563-1f79f4d8dfd6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract_7f7c840b-a8c4-4031-8ffd-848f52bcb722" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_fa6dbbc7-fbb2-4f20-8563-1f79f4d8dfd6" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_BusinessDivestitureTransactionCosts_bdabedd4-0715-4ba5-8b5d-25c99b4f3091" xlink:href="ppl-20210331.xsd#ppl_BusinessDivestitureTransactionCosts"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract_7f7c840b-a8c4-4031-8ffd-848f52bcb722" xlink:to="loc_ppl_BusinessDivestitureTransactionCosts_bdabedd4-0715-4ba5-8b5d-25c99b4f3091" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationCarryingValue_f42742b7-1aa3-494a-adc4-998ec2a9a075" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationCarryingValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract_7f7c840b-a8c4-4031-8ffd-848f52bcb722" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationCarryingValue_f42742b7-1aa3-494a-adc4-998ec2a9a075" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AdditionalProceedsFromDivestitureOfBusinessNotIncludedInSellingPrice_27d6c808-e096-4831-9580-bb773d0390b7" xlink:href="ppl-20210331.xsd#ppl_AdditionalProceedsFromDivestitureOfBusinessNotIncludedInSellingPrice"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract_7f7c840b-a8c4-4031-8ffd-848f52bcb722" xlink:to="loc_ppl_AdditionalProceedsFromDivestitureOfBusinessNotIncludedInSellingPrice_27d6c808-e096-4831-9580-bb773d0390b7" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfDisposalGroupNetOfTax_966fe5ed-3df3-4eab-9fa3-2b48a26e7ad1" xlink:href="ppl-20210331.xsd#ppl_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfDisposalGroupNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract_7f7c840b-a8c4-4031-8ffd-848f52bcb722" xlink:to="loc_ppl_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfDisposalGroupNetOfTax_966fe5ed-3df3-4eab-9fa3-2b48a26e7ad1" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_9ffd0201-f341-437e-aeec-06d46f715358" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ForeignCurrencyExchangeRateTranslation1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDisclosuresAbstract_7f7c840b-a8c4-4031-8ffd-848f52bcb722" xlink:to="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_9ffd0201-f341-437e-aeec-06d46f715358" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_3498fe44-d72b-482b-acfb-0e93e90112b1" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_6c8c89d4-cc8d-4d6d-b35b-9ea4e346613c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_6c8c89d4-cc8d-4d6d-b35b-9ea4e346613c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_7f01f194-536e-4cbd-a808-973214a459da" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_7f01f194-536e-4cbd-a808-973214a459da" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationOtherIncomeExpenseNet_bd2dbe68-3880-474b-815a-7eac464536ed" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationOtherIncomeExpenseNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationOtherIncomeExpenseNet_bd2dbe68-3880-474b-815a-7eac464536ed" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense_c4ec9461-4dc0-4a78-996b-24988fef0835" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense_c4ec9461-4dc0-4a78-996b-24988fef0835" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_ec19ab91-4427-450f-915d-789f5d946510" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_ec19ab91-4427-450f-915d-789f5d946510" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_c1220c18-6ae8-4e19-8b3c-f408582ca5f0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_e0ae0e9a-1966-45a3-b9b5-363862aa1760" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:to="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_e0ae0e9a-1966-45a3-b9b5-363862aa1760" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_75c9f2f8-b33e-4275-a9cb-0ae1b05f4b07" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_75c9f2f8-b33e-4275-a9cb-0ae1b05f4b07" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseAttributableToRealizationOfBookTaxOutsideBasisDomestic_c3b06052-6023-4963-aa00-d0300e973d75" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseAttributableToRealizationOfBookTaxOutsideBasisDomestic"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseAttributableToRealizationOfBookTaxOutsideBasisDomestic_c3b06052-6023-4963-aa00-d0300e973d75" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseAttributableToRealizationOfBookTaxOutsideBasisForeign_5008a6bf-b26a-4d2e-a6d8-2747c1643ddf" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseAttributableToRealizationOfBookTaxOutsideBasisForeign"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract_8ee4030d-5a4d-40f6-9ff5-190e38e99f83" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseAttributableToRealizationOfBookTaxOutsideBasisForeign_5008a6bf-b26a-4d2e-a6d8-2747c1643ddf" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_3498fe44-d72b-482b-acfb-0e93e90112b1" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents_6da84253-3dd4-4b16-83ff-1f84413828cf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents_6da84253-3dd4-4b16-83ff-1f84413828cf" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_3f34eb15-03a6-40da-a03f-09346d5817ab" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_3f34eb15-03a6-40da-a03f-09346d5817ab" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationDerivativeInstrumentsAndHedgesAssets_caaca2bb-d9c5-4385-8d8d-5cf610942040" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationDerivativeInstrumentsAndHedgesAssets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationDerivativeInstrumentsAndHedgesAssets_caaca2bb-d9c5-4385-8d8d-5cf610942040" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent_dd0e99bd-452e-4adb-91eb-b80241cc9b94" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent_dd0e99bd-452e-4adb-91eb-b80241cc9b94" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillCurrent_1e03b43d-c87a-42ac-b18d-50e1eca74445" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillCurrent_1e03b43d-c87a-42ac-b18d-50e1eca74445" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsCurrent_36de6dbc-3686-4078-8287-7e91feee23a1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsCurrent_36de6dbc-3686-4078-8287-7e91feee23a1" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationAssetsForPlanBenefitsDefinedBenefitPlan_052d6788-aaae-4308-807d-b138ab2f2fc2" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationAssetsForPlanBenefitsDefinedBenefitPlan"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationAssetsForPlanBenefitsDefinedBenefitPlan_052d6788-aaae-4308-807d-b138ab2f2fc2" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_e674ae93-c4de-4776-841d-d8f7aff3a72b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_e674ae93-c4de-4776-841d-d8f7aff3a72b" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_191042e8-591f-4c20-9d96-f6c4b82996cf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_191042e8-591f-4c20-9d96-f6c4b82996cf" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationShortTermDebtAndLongTermDebtCurrentMaturities_1fe184e4-19c6-4cb6-9647-b1a74f8ccdb3" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationShortTermDebtAndLongTermDebtCurrentMaturities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationShortTermDebtAndLongTermDebtCurrentMaturities_1fe184e4-19c6-4cb6-9647-b1a74f8ccdb3" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayable_a2a0c3ea-4d78-4e78-8f13-8514dcb9e1cd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayable_a2a0c3ea-4d78-4e78-8f13-8514dcb9e1cd" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationCustomerDeposits_915559eb-40b8-4f91-9632-24644951800b" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationCustomerDeposits"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationCustomerDeposits_915559eb-40b8-4f91-9632-24644951800b" xlink:type="arc" order="12"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationAccruedInterest_e4e59fab-7aff-4410-85d3-18f217abec3f" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationAccruedInterest"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationAccruedInterest_e4e59fab-7aff-4410-85d3-18f217abec3f" xlink:type="arc" order="13"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationLongTermDebtExcludingCurrentMaturities_ebfbcede-840c-4e1a-840c-93c68691ee86" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationLongTermDebtExcludingCurrentMaturities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationLongTermDebtExcludingCurrentMaturities_ebfbcede-840c-4e1a-840c-93c68691ee86" xlink:type="arc" order="14"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredTaxLiabilities_d3140a6a-e497-4518-b19f-a4aff4c594ff" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredTaxLiabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredTaxLiabilities_d3140a6a-e497-4518-b19f-a4aff4c594ff" xlink:type="arc" order="15"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationDerivativeInstrumentsAndHedgesLiabilities_93497b39-c041-471a-acb8-af11382231e9" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationDerivativeInstrumentsAndHedgesLiabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationDerivativeInstrumentsAndHedgesLiabilities_93497b39-c041-471a-acb8-af11382231e9" xlink:type="arc" order="16"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_2c881a8d-1a1a-40b1-96ac-7ae8778067f4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_2c881a8d-1a1a-40b1-96ac-7ae8778067f4" xlink:type="arc" order="17"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_1f32c27c-7d9a-4986-a4ea-6f0470cbbf55" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_1f32c27c-7d9a-4986-a4ea-6f0470cbbf55" xlink:type="arc" order="18"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisposalGroupIncludingDiscontinuedOperationNetAssets_b34cf9fa-33ac-4848-b2b1-0bed7a323864" xlink:href="ppl-20210331.xsd#ppl_DisposalGroupIncludingDiscontinuedOperationNetAssets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_ppl_DisposalGroupIncludingDiscontinuedOperationNetAssets_b34cf9fa-33ac-4848-b2b1-0bed7a323864" xlink:type="arc" order="19"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_9fc80a55-3542-458d-bdc6-3175d52b4d8c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_47805245-65fd-4f2b-bbaf-a9148b99215c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_01ac63dc-b161-42f9-b1ce-d7a19cb61f86" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_47805245-65fd-4f2b-bbaf-a9148b99215c" xlink:type="arc" order="21"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfDisposalGroupNetOfTax_95d95235-8477-49c2-8eb8-0999c64641db" xlink:href="ppl-20210331.xsd#ppl_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfDisposalGroupNetOfTax"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_1e0c50a3-3cdc-4a16-8098-db06a160939f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_3498fe44-d72b-482b-acfb-0e93e90112b1" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_1e0c50a3-3cdc-4a16-8098-db06a160939f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_9195e2cc-5543-4c19-8934-4f7c202b0a51" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupClassificationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_1e0c50a3-3cdc-4a16-8098-db06a160939f" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_9195e2cc-5543-4c19-8934-4f7c202b0a51" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_9195e2cc-5543-4c19-8934-4f7c202b0a51_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupClassificationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_9195e2cc-5543-4c19-8934-4f7c202b0a51" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_9195e2cc-5543-4c19-8934-4f7c202b0a51_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_dfbd9ca9-7820-4a16-a9b8-e93b33677959" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupClassificationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_9195e2cc-5543-4c19-8934-4f7c202b0a51" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_dfbd9ca9-7820-4a16-a9b8-e93b33677959" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationsHeldforsaleMember_516450ac-2bd0-4cb8-9cc7-5c9f01805035" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DiscontinuedOperationsHeldforsaleMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_dfbd9ca9-7820-4a16-a9b8-e93b33677959" xlink:to="loc_us-gaap_DiscontinuedOperationsHeldforsaleMember_516450ac-2bd0-4cb8-9cc7-5c9f01805035" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_a88b3ea8-0889-42be-ae9f-bd62be5bc2f1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_1e0c50a3-3cdc-4a16-8098-db06a160939f" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_a88b3ea8-0889-42be-ae9f-bd62be5bc2f1" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_a88b3ea8-0889-42be-ae9f-bd62be5bc2f1_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_a88b3ea8-0889-42be-ae9f-bd62be5bc2f1" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_a88b3ea8-0889-42be-ae9f-bd62be5bc2f1_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_4089a679-bb0d-492a-a608-315fbb62176c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_a88b3ea8-0889-42be-ae9f-bd62be5bc2f1" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_4089a679-bb0d-492a-a608-315fbb62176c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WPDMember_f06a6d08-ad5f-4f42-a28f-a38fa7e467cf" xlink:href="ppl-20210331.xsd#ppl_WPDMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_4089a679-bb0d-492a-a608-315fbb62176c" xlink:to="loc_ppl_WPDMember_f06a6d08-ad5f-4f42-a28f-a38fa7e467cf" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_067b2981-73c2-4a00-b673-17a5f1a59771" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_StatementScenarioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_1e0c50a3-3cdc-4a16-8098-db06a160939f" xlink:to="loc_srt_StatementScenarioAxis_067b2981-73c2-4a00-b673-17a5f1a59771" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_067b2981-73c2-4a00-b673-17a5f1a59771_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_067b2981-73c2-4a00-b673-17a5f1a59771" xlink:to="loc_srt_ScenarioUnspecifiedDomain_067b2981-73c2-4a00-b673-17a5f1a59771_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_20f249ea-e27b-44eb-b429-d6810d8e0c69" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_067b2981-73c2-4a00-b673-17a5f1a59771" xlink:to="loc_srt_ScenarioUnspecifiedDomain_20f249ea-e27b-44eb-b429-d6810d8e0c69" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_7adee283-d206-4c1e-bc12-db2b954fc564" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioForecastMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_20f249ea-e27b-44eb-b429-d6810d8e0c69" xlink:to="loc_srt_ScenarioForecastMember_7adee283-d206-4c1e-bc12-db2b954fc564" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/AcquisitionsDevelopmentandDivestituresDevelopmentDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#AcquisitionsDevelopmentandDivestituresDevelopmentDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AcquisitionsDevelopmentandDivestituresDevelopmentDetails" xlink:type="extended" id="i8054f9b18e8b4cb89d57e4cd73df3289_AcquisitionsDevelopmentandDivestituresDevelopmentDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_8177be81-c948-4843-86c6-41ceeae802e3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_3d467f58-ac5e-46f8-b6ad-87d8b70a667f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_8177be81-c948-4843-86c6-41ceeae802e3" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_3d467f58-ac5e-46f8-b6ad-87d8b70a667f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_793e4f90-f692-45ef-95de-a565d9a47d93" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_8177be81-c948-4843-86c6-41ceeae802e3" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_793e4f90-f692-45ef-95de-a565d9a47d93" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_70e54f43-b1bd-4678-8c12-e2b9d94f3ea8" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_StatementScenarioAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_793e4f90-f692-45ef-95de-a565d9a47d93" xlink:to="loc_srt_StatementScenarioAxis_70e54f43-b1bd-4678-8c12-e2b9d94f3ea8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_70e54f43-b1bd-4678-8c12-e2b9d94f3ea8_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_70e54f43-b1bd-4678-8c12-e2b9d94f3ea8" xlink:to="loc_srt_ScenarioUnspecifiedDomain_70e54f43-b1bd-4678-8c12-e2b9d94f3ea8_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_43b38bda-82f1-4315-a859-c26846df25a5" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_70e54f43-b1bd-4678-8c12-e2b9d94f3ea8" xlink:to="loc_srt_ScenarioUnspecifiedDomain_43b38bda-82f1-4315-a859-c26846df25a5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_21790655-2b71-4b24-982b-5b7ba6d829c8" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioForecastMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_43b38bda-82f1-4315-a859-c26846df25a5" xlink:to="loc_srt_ScenarioForecastMember_21790655-2b71-4b24-982b-5b7ba6d829c8" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/DefinedBenefits" xlink:type="simple" xlink:href="ppl-20210331.xsd#DefinedBenefits"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DefinedBenefits" xlink:type="extended" id="i64e4d50e15a24d2087b3ac19864dcfef_DefinedBenefits"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/DefinedBenefitsTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#DefinedBenefitsTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DefinedBenefitsTables" xlink:type="extended" id="id17cb4eb568544a2bfa9cf40637036a1_DefinedBenefitsTables">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_43c5d9de-5a72-4e75-941f-0b5906ef268b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock_c213dce9-ef8f-4963-abcb-376b36295799" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_43c5d9de-5a72-4e75-941f-0b5906ef268b" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock_c213dce9-ef8f-4963-abcb-376b36295799" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ScheduleOfNetPeriodicBenefitCostsAllocationTableTextBlock_bbee472b-b23f-431c-80b2-e589edca4fda" xlink:href="ppl-20210331.xsd#ppl_ScheduleOfNetPeriodicBenefitCostsAllocationTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_43c5d9de-5a72-4e75-941f-0b5906ef268b" xlink:to="loc_ppl_ScheduleOfNetPeriodicBenefitCostsAllocationTableTextBlock_bbee472b-b23f-431c-80b2-e589edca4fda" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3cc9dc27-0543-4c9a-87e2-c161c8340409" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_43c5d9de-5a72-4e75-941f-0b5906ef268b" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3cc9dc27-0543-4c9a-87e2-c161c8340409" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_d2eae3e9-b34a-46e5-91f6-af6df783fcc1" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3cc9dc27-0543-4c9a-87e2-c161c8340409" xlink:to="loc_dei_LegalEntityAxis_d2eae3e9-b34a-46e5-91f6-af6df783fcc1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_d2eae3e9-b34a-46e5-91f6-af6df783fcc1_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_d2eae3e9-b34a-46e5-91f6-af6df783fcc1" xlink:to="loc_dei_EntityDomain_d2eae3e9-b34a-46e5-91f6-af6df783fcc1_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_135f62e9-396d-46c4-9120-94889a543145" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_d2eae3e9-b34a-46e5-91f6-af6df783fcc1" xlink:to="loc_dei_EntityDomain_135f62e9-396d-46c4-9120-94889a543145" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_de17280e-211f-4eab-bdac-caca61f6a502" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_135f62e9-396d-46c4-9120-94889a543145" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_de17280e-211f-4eab-bdac-caca61f6a502" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_578eb349-1549-4f8c-9ecb-2b6298e299f1" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_135f62e9-396d-46c4-9120-94889a543145" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_578eb349-1549-4f8c-9ecb-2b6298e299f1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_104d6b5d-3b44-459b-89b6-dd7062d16bd8" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_135f62e9-396d-46c4-9120-94889a543145" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_104d6b5d-3b44-459b-89b6-dd7062d16bd8" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_4322b186-6b49-4241-99a3-21ce6c3c5283" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_135f62e9-396d-46c4-9120-94889a543145" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_4322b186-6b49-4241-99a3-21ce6c3c5283" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/DefinedBenefitsDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#DefinedBenefitsDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DefinedBenefitsDetails" xlink:type="extended" id="ib48d65fe9a2f4e5ea0cf50ad32d3aa1f_DefinedBenefitsDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_5d3ffc7f-5577-44e3-bdae-2beb56ae6422" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_5d3ffc7f-5577-44e3-bdae-2beb56ae6422" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_4bda64d5-7a1c-48a5-94e9-4f4a4b87f24d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_4bda64d5-7a1c-48a5-94e9-4f4a4b87f24d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_729af842-6388-4106-a532-4a75affa7c16" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_729af842-6388-4106-a532-4a75affa7c16" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_7b9850f9-3d5c-47b5-bf04-1529b042bbcd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_7b9850f9-3d5c-47b5-bf04-1529b042bbcd" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AmortizationOfAbstract_74818062-190b-4ffa-8fcf-60218e7c7b54" xlink:href="ppl-20210331.xsd#ppl_AmortizationOfAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:to="loc_ppl_AmortizationOfAbstract_74818062-190b-4ffa-8fcf-60218e7c7b54" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_70bbdd0e-3432-4ef5-9351-3153edaec98f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AmortizationOfAbstract_74818062-190b-4ffa-8fcf-60218e7c7b54" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_70bbdd0e-3432-4ef5-9351-3153edaec98f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_b7539f18-13ee-479b-8e9f-435dd2760509" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AmortizationOfAbstract_74818062-190b-4ffa-8fcf-60218e7c7b54" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_b7539f18-13ee-479b-8e9f-435dd2760509" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NetPeriodicDefinedBenefitCostsCreditsPriorToSettlements_f8d06d8e-5df6-483f-b410-e199765028b3" xlink:href="ppl-20210331.xsd#ppl_NetPeriodicDefinedBenefitCostsCreditsPriorToSettlements"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:to="loc_ppl_NetPeriodicDefinedBenefitCostsCreditsPriorToSettlements_f8d06d8e-5df6-483f-b410-e199765028b3" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_99cb0cba-f1d3-4e7a-9643-93521aca466b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:to="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_99cb0cba-f1d3-4e7a-9643-93521aca466b" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_e248cf7a-9617-4795-b6e3-a2030ef2affa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_e248cf7a-9617-4795-b6e3-a2030ef2affa" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetAmortizationPeriod_21a7d1c4-4c3b-42e2-b7d8-16320d33b1bd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAssetAmortizationPeriod"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:to="loc_us-gaap_RegulatoryAssetAmortizationPeriod_21a7d1c4-4c3b-42e2-b7d8-16320d33b1bd" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DefinedBenefitPlanDeferredRecoveryAmount_22f4fce6-760b-4fa0-a9f4-93a397d2d09d" xlink:href="ppl-20210331.xsd#ppl_DefinedBenefitPlanDeferredRecoveryAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_a31cae73-9184-46d5-b008-fc47d9861d89" xlink:to="loc_ppl_DefinedBenefitPlanDeferredRecoveryAmount_22f4fce6-760b-4fa0-a9f4-93a397d2d09d" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NetPeriodicDefinedBenefitCostsAllocatedToSubsidiaryBySponsorNumericAbstract_ae172983-b962-49d2-85b8-59370bad0b9d" xlink:href="ppl-20210331.xsd#ppl_NetPeriodicDefinedBenefitCostsAllocatedToSubsidiaryBySponsorNumericAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_5d3ffc7f-5577-44e3-bdae-2beb56ae6422" xlink:to="loc_ppl_NetPeriodicDefinedBenefitCostsAllocatedToSubsidiaryBySponsorNumericAbstract_ae172983-b962-49d2-85b8-59370bad0b9d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DefinedBenefitPlanCostsAllocatedToSubsidiaryByPlanSponsors_f4c0feb1-7804-47b9-b7f7-e0f9aa713870" xlink:href="ppl-20210331.xsd#ppl_DefinedBenefitPlanCostsAllocatedToSubsidiaryByPlanSponsors"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_NetPeriodicDefinedBenefitCostsAllocatedToSubsidiaryBySponsorNumericAbstract_ae172983-b962-49d2-85b8-59370bad0b9d" xlink:to="loc_ppl_DefinedBenefitPlanCostsAllocatedToSubsidiaryByPlanSponsors_f4c0feb1-7804-47b9-b7f7-e0f9aa713870" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionContributions_f1beedb4-488e-453f-99d9-6b92ba86c689" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PensionContributions"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_5d3ffc7f-5577-44e3-bdae-2beb56ae6422" xlink:to="loc_us-gaap_PensionContributions_f1beedb4-488e-453f-99d9-6b92ba86c689" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bd9b083b-f521-4fb4-912a-b11de0a8889c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_5d3ffc7f-5577-44e3-bdae-2beb56ae6422" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bd9b083b-f521-4fb4-912a-b11de0a8889c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_e80dc9ae-35d8-4e8b-8b19-fcd93728c7b0" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bd9b083b-f521-4fb4-912a-b11de0a8889c" xlink:to="loc_dei_LegalEntityAxis_e80dc9ae-35d8-4e8b-8b19-fcd93728c7b0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_e80dc9ae-35d8-4e8b-8b19-fcd93728c7b0_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_e80dc9ae-35d8-4e8b-8b19-fcd93728c7b0" xlink:to="loc_dei_EntityDomain_e80dc9ae-35d8-4e8b-8b19-fcd93728c7b0_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_4a4e52b5-e64c-4b05-8b43-ae0c32bad481" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_e80dc9ae-35d8-4e8b-8b19-fcd93728c7b0" xlink:to="loc_dei_EntityDomain_4a4e52b5-e64c-4b05-8b43-ae0c32bad481" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_e093c559-6f82-4fc3-9ccf-5082657c78c3" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_4a4e52b5-e64c-4b05-8b43-ae0c32bad481" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_e093c559-6f82-4fc3-9ccf-5082657c78c3" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_a1b25653-7a34-445f-91ff-706da9dd6bf2" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_4a4e52b5-e64c-4b05-8b43-ae0c32bad481" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_a1b25653-7a34-445f-91ff-706da9dd6bf2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_628979a4-55e5-459f-984c-d532ca617560" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_4a4e52b5-e64c-4b05-8b43-ae0c32bad481" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_628979a4-55e5-459f-984c-d532ca617560" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_d57b2300-72aa-4c3b-8d3d-ae1d680d329f" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_4a4e52b5-e64c-4b05-8b43-ae0c32bad481" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_d57b2300-72aa-4c3b-8d3d-ae1d680d329f" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_8d44b224-d540-4b7c-98c7-4f502483ef3e" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bd9b083b-f521-4fb4-912a-b11de0a8889c" xlink:to="loc_ppl_ByCompanyAxis_8d44b224-d540-4b7c-98c7-4f502483ef3e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_8d44b224-d540-4b7c-98c7-4f502483ef3e_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_8d44b224-d540-4b7c-98c7-4f502483ef3e" xlink:to="loc_ppl_ByCompanyDomain_8d44b224-d540-4b7c-98c7-4f502483ef3e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_aa646735-7cd9-41dd-931e-8cc5633b418b" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_8d44b224-d540-4b7c-98c7-4f502483ef3e" xlink:to="loc_ppl_ByCompanyDomain_aa646735-7cd9-41dd-931e-8cc5633b418b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_f9a1f127-7e0b-4a6b-85c8-103fe177fa54" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_aa646735-7cd9-41dd-931e-8cc5633b418b" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_f9a1f127-7e0b-4a6b-85c8-103fe177fa54" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_83c28bcc-ea62-47aa-b174-5c06801ef365" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_aa646735-7cd9-41dd-931e-8cc5633b418b" xlink:to="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_83c28bcc-ea62-47aa-b174-5c06801ef365" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTaxStatusAxis_a265e22c-e3ed-4acc-a1c0-a2f80ee3afa3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetirementPlanTaxStatusAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bd9b083b-f521-4fb4-912a-b11de0a8889c" xlink:to="loc_us-gaap_RetirementPlanTaxStatusAxis_a265e22c-e3ed-4acc-a1c0-a2f80ee3afa3" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTaxStatusDomain_a265e22c-e3ed-4acc-a1c0-a2f80ee3afa3_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetirementPlanTaxStatusDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RetirementPlanTaxStatusAxis_a265e22c-e3ed-4acc-a1c0-a2f80ee3afa3" xlink:to="loc_us-gaap_RetirementPlanTaxStatusDomain_a265e22c-e3ed-4acc-a1c0-a2f80ee3afa3_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTaxStatusDomain_882b4c38-9474-4f29-aaa7-0ab7ddf96145" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetirementPlanTaxStatusDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RetirementPlanTaxStatusAxis_a265e22c-e3ed-4acc-a1c0-a2f80ee3afa3" xlink:to="loc_us-gaap_RetirementPlanTaxStatusDomain_882b4c38-9474-4f29-aaa7-0ab7ddf96145" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_53f3f300-1a69-4c84-93a5-df6317e041cc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetirementPlanTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bd9b083b-f521-4fb4-912a-b11de0a8889c" xlink:to="loc_us-gaap_RetirementPlanTypeAxis_53f3f300-1a69-4c84-93a5-df6317e041cc" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_53f3f300-1a69-4c84-93a5-df6317e041cc_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetirementPlanTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_53f3f300-1a69-4c84-93a5-df6317e041cc" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_53f3f300-1a69-4c84-93a5-df6317e041cc_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_fe3d4824-a7dd-4dd6-a188-898383150b98" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetirementPlanTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_53f3f300-1a69-4c84-93a5-df6317e041cc" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_fe3d4824-a7dd-4dd6-a188-898383150b98" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_c4c0c468-6bdd-4c4e-9aab-9cfc14408ea2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_fe3d4824-a7dd-4dd6-a188-898383150b98" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_c4c0c468-6bdd-4c4e-9aab-9cfc14408ea2" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_7f3a06a7-32f7-4c29-bf4f-9093687df60e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_fe3d4824-a7dd-4dd6-a188-898383150b98" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_7f3a06a7-32f7-4c29-bf4f-9093687df60e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationAxis_0ce93218-eeb6-4460-9874-0da6f965ffc3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetirementPlanSponsorLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bd9b083b-f521-4fb4-912a-b11de0a8889c" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationAxis_0ce93218-eeb6-4460-9874-0da6f965ffc3" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_0ce93218-eeb6-4460-9874-0da6f965ffc3_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetirementPlanSponsorLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_0ce93218-eeb6-4460-9874-0da6f965ffc3" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_0ce93218-eeb6-4460-9874-0da6f965ffc3_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_fa187bbb-03e1-47e5-b783-55dc847abfcc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetirementPlanSponsorLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_0ce93218-eeb6-4460-9874-0da6f965ffc3" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_fa187bbb-03e1-47e5-b783-55dc847abfcc" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticPlanMember_0c9a9a82-bd6c-4115-ab4e-40752f11f7ff" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DomesticPlanMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_fa187bbb-03e1-47e5-b783-55dc847abfcc" xlink:to="loc_us-gaap_DomesticPlanMember_0c9a9a82-bd6c-4115-ab4e-40752f11f7ff" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_country_US_652ceaab-5bd1-48e5-9ec5-c72dc1308692" xlink:href="https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd#country_US"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DomesticPlanMember_0c9a9a82-bd6c-4115-ab4e-40752f11f7ff" xlink:to="loc_country_US_652ceaab-5bd1-48e5-9ec5-c72dc1308692" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignPlanMember_15701035-5f15-4d6a-a816-ab04b81c81d7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ForeignPlanMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_fa187bbb-03e1-47e5-b783-55dc847abfcc" xlink:to="loc_us-gaap_ForeignPlanMember_15701035-5f15-4d6a-a816-ab04b81c81d7" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_country_GB_79663ecb-6543-4625-9f67-b33af3d4d236" xlink:href="https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd#country_GB"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ForeignPlanMember_15701035-5f15-4d6a-a816-ab04b81c81d7" xlink:to="loc_country_GB_79663ecb-6543-4625-9f67-b33af3d4d236" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PlanSponsorAxis_c1134de7-b111-4029-b744-5c1048ce17c5" xlink:href="ppl-20210331.xsd#ppl_PlanSponsorAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bd9b083b-f521-4fb4-912a-b11de0a8889c" xlink:to="loc_ppl_PlanSponsorAxis_c1134de7-b111-4029-b744-5c1048ce17c5" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PlanSponsorDomain_c1134de7-b111-4029-b744-5c1048ce17c5_default" xlink:href="ppl-20210331.xsd#ppl_PlanSponsorDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_PlanSponsorAxis_c1134de7-b111-4029-b744-5c1048ce17c5" xlink:to="loc_ppl_PlanSponsorDomain_c1134de7-b111-4029-b744-5c1048ce17c5_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PlanSponsorDomain_67674864-1f7b-4efd-aad7-bdd95aba69ec" xlink:href="ppl-20210331.xsd#ppl_PlanSponsorDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_PlanSponsorAxis_c1134de7-b111-4029-b744-5c1048ce17c5" xlink:to="loc_ppl_PlanSponsorDomain_67674864-1f7b-4efd-aad7-bdd95aba69ec" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ServicesCompanyAffiliateMember_de2ce7eb-63fd-4ec4-b66a-32968be23a76" xlink:href="ppl-20210331.xsd#ppl_ServicesCompanyAffiliateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_PlanSponsorDomain_67674864-1f7b-4efd-aad7-bdd95aba69ec" xlink:to="loc_ppl_ServicesCompanyAffiliateMember_de2ce7eb-63fd-4ec4-b66a-32968be23a76" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_490a4c13-60fa-49d5-93be-81cc68b82ed5" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_PlanSponsorDomain_67674864-1f7b-4efd-aad7-bdd95aba69ec" xlink:to="loc_ppl_LouisvilleGasAndElectricAndKentuckyUtilitiesEnergyLlcMember_490a4c13-60fa-49d5-93be-81cc68b82ed5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_086750be-8f0d-4da3-aa45-e5cfcfb68222" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bd9b083b-f521-4fb4-912a-b11de0a8889c" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_086750be-8f0d-4da3-aa45-e5cfcfb68222" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_086750be-8f0d-4da3-aa45-e5cfcfb68222_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_086750be-8f0d-4da3-aa45-e5cfcfb68222" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_086750be-8f0d-4da3-aa45-e5cfcfb68222_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_bb5c7e89-f341-42fd-a6b8-18a88976f680" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_086750be-8f0d-4da3-aa45-e5cfcfb68222" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_bb5c7e89-f341-42fd-a6b8-18a88976f680" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_5d79ba06-eb7f-4ee8-b2a9-ccb490d892e3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_bb5c7e89-f341-42fd-a6b8-18a88976f680" xlink:to="loc_us-gaap_SubsequentEventMember_5d79ba06-eb7f-4ee8-b2a9-ccb490d892e3" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="ppl-20210331.xsd#CommitmentsandContingencies"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CommitmentsandContingencies" xlink:type="extended" id="i571100be410f473ba7543ec0410f3a80_CommitmentsandContingencies"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/CommitmentsandContingenciesTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#CommitmentsandContingenciesTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CommitmentsandContingenciesTables" xlink:type="extended" id="if4787dba43c74f91995349211285b0e8_CommitmentsandContingenciesTables"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/CommitmentsandContingenciesLegalMattersandRegulatoryIssuesDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#CommitmentsandContingenciesLegalMattersandRegulatoryIssuesDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CommitmentsandContingenciesLegalMattersandRegulatoryIssuesDetails" xlink:type="extended" id="i9dc799c9bb504f58b46e01128b1022f9_CommitmentsandContingenciesLegalMattersandRegulatoryIssuesDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_LegalMattersLineItems_58ac8e94-7c3d-4807-91a2-a762e2efea09" xlink:href="ppl-20210331.xsd#ppl_LegalMattersLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LegalMattersCaneRunEnvironmentalClaimsNumericAbstract_d2befa7b-a09f-47e5-a3a3-3c28db46e068" xlink:href="ppl-20210331.xsd#ppl_LegalMattersCaneRunEnvironmentalClaimsNumericAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LegalMattersLineItems_58ac8e94-7c3d-4807-91a2-a762e2efea09" xlink:to="loc_ppl_LegalMattersCaneRunEnvironmentalClaimsNumericAbstract_d2befa7b-a09f-47e5-a3a3-3c28db46e068" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CaneRunPlantNumberOfPlaintiffsFiledSuit_b4074747-22c6-415b-bb1e-964b4cbdf84d" xlink:href="ppl-20210331.xsd#ppl_CaneRunPlantNumberOfPlaintiffsFiledSuit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LegalMattersCaneRunEnvironmentalClaimsNumericAbstract_d2befa7b-a09f-47e5-a3a3-3c28db46e068" xlink:to="loc_ppl_CaneRunPlantNumberOfPlaintiffsFiledSuit_b4074747-22c6-415b-bb1e-964b4cbdf84d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CanRunPlantClassOfResidentsMilesWithinPlant_deeb9f29-35de-4655-b3d7-1d107dbc80eb" xlink:href="ppl-20210331.xsd#ppl_CanRunPlantClassOfResidentsMilesWithinPlant"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LegalMattersCaneRunEnvironmentalClaimsNumericAbstract_d2befa7b-a09f-47e5-a3a3-3c28db46e068" xlink:to="loc_ppl_CanRunPlantClassOfResidentsMilesWithinPlant_deeb9f29-35de-4655-b3d7-1d107dbc80eb" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CaneRunPlantNumberOfUnresolvedCleanAirActViolations_1896dd30-e6d5-4e9a-abcf-3f72b78f66a4" xlink:href="ppl-20210331.xsd#ppl_CaneRunPlantNumberOfUnresolvedCleanAirActViolations"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LegalMattersCaneRunEnvironmentalClaimsNumericAbstract_d2befa7b-a09f-47e5-a3a3-3c28db46e068" xlink:to="loc_ppl_CaneRunPlantNumberOfUnresolvedCleanAirActViolations_1896dd30-e6d5-4e9a-abcf-3f72b78f66a4" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GeneratingUnitsRetiredPlantOne_a50ef566-24c2-4ec4-99ad-017bd6f410ec" xlink:href="ppl-20210331.xsd#ppl_GeneratingUnitsRetiredPlantOne"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LegalMattersCaneRunEnvironmentalClaimsNumericAbstract_d2befa7b-a09f-47e5-a3a3-3c28db46e068" xlink:to="loc_ppl_GeneratingUnitsRetiredPlantOne_a50ef566-24c2-4ec4-99ad-017bd6f410ec" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ClaimByFormerAffiliateAbstract_4808f4b7-9f62-42f4-98e2-c2d092d2527e" xlink:href="ppl-20210331.xsd#ppl_ClaimByFormerAffiliateAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LegalMattersLineItems_58ac8e94-7c3d-4807-91a2-a762e2efea09" xlink:to="loc_ppl_ClaimByFormerAffiliateAbstract_4808f4b7-9f62-42f4-98e2-c2d092d2527e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RestructuringAndRelatedActivitiesOwnershipPercentageByRiverstone_4053f8d1-79e2-47ea-a3f2-3ae27fe387dd" xlink:href="ppl-20210331.xsd#ppl_RestructuringAndRelatedActivitiesOwnershipPercentageByRiverstone"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ClaimByFormerAffiliateAbstract_4808f4b7-9f62-42f4-98e2-c2d092d2527e" xlink:to="loc_ppl_RestructuringAndRelatedActivitiesOwnershipPercentageByRiverstone_4053f8d1-79e2-47ea-a3f2-3ae27fe387dd" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AmountOfAllegedImproperDistribution_a2bce47d-ab22-49a8-aa1a-e6c5134ac961" xlink:href="ppl-20210331.xsd#ppl_AmountOfAllegedImproperDistribution"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ClaimByFormerAffiliateAbstract_4808f4b7-9f62-42f4-98e2-c2d092d2527e" xlink:to="loc_ppl_AmountOfAllegedImproperDistribution_a2bce47d-ab22-49a8-aa1a-e6c5134ac961" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_b49786f4-5f46-48b8-a480-07c4e0d542a3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ClaimByFormerAffiliateAbstract_4808f4b7-9f62-42f4-98e2-c2d092d2527e" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingencies_b49786f4-5f46-48b8-a480-07c4e0d542a3" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LegalMattersTable_2ee2aa55-a1c0-48a1-a92e-0aae738008eb" xlink:href="ppl-20210331.xsd#ppl_LegalMattersTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_LegalMattersLineItems_58ac8e94-7c3d-4807-91a2-a762e2efea09" xlink:to="loc_ppl_LegalMattersTable_2ee2aa55-a1c0-48a1-a92e-0aae738008eb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_8bf39443-e111-460e-a201-93fd69ebeaac" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_LegalMattersTable_2ee2aa55-a1c0-48a1-a92e-0aae738008eb" xlink:to="loc_dei_LegalEntityAxis_8bf39443-e111-460e-a201-93fd69ebeaac" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_8bf39443-e111-460e-a201-93fd69ebeaac_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_8bf39443-e111-460e-a201-93fd69ebeaac" xlink:to="loc_dei_EntityDomain_8bf39443-e111-460e-a201-93fd69ebeaac_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_a03578e1-fdd3-451b-bbd7-95ce0ac5abdd" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_8bf39443-e111-460e-a201-93fd69ebeaac" xlink:to="loc_dei_EntityDomain_a03578e1-fdd3-451b-bbd7-95ce0ac5abdd" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_9657670a-5f59-4d7f-aefc-02023a494c73" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a03578e1-fdd3-451b-bbd7-95ce0ac5abdd" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_9657670a-5f59-4d7f-aefc-02023a494c73" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_022aec5b-12d0-4dcb-b20b-303b94060f82" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a03578e1-fdd3-451b-bbd7-95ce0ac5abdd" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_022aec5b-12d0-4dcb-b20b-303b94060f82" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_eef09efe-e57f-4c2e-9c7a-3a2a30308d85" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a03578e1-fdd3-451b-bbd7-95ce0ac5abdd" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_eef09efe-e57f-4c2e-9c7a-3a2a30308d85" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_9222bb28-a5e7-4e63-ba03-d74621de3623" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_LegalMattersTable_2ee2aa55-a1c0-48a1-a92e-0aae738008eb" xlink:to="loc_ppl_ByCompanyAxis_9222bb28-a5e7-4e63-ba03-d74621de3623" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_9222bb28-a5e7-4e63-ba03-d74621de3623_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_9222bb28-a5e7-4e63-ba03-d74621de3623" xlink:to="loc_ppl_ByCompanyDomain_9222bb28-a5e7-4e63-ba03-d74621de3623_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_0e3e6246-5bb1-49e2-9022-4b80706d99fc" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_9222bb28-a5e7-4e63-ba03-d74621de3623" xlink:to="loc_ppl_ByCompanyDomain_0e3e6246-5bb1-49e2-9022-4b80706d99fc" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_3a5f88a0-5d86-4b2a-8389-cdc01a3832d2" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_0e3e6246-5bb1-49e2-9022-4b80706d99fc" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_3a5f88a0-5d86-4b2a-8389-cdc01a3832d2" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_b85b91c1-f499-49b4-be23-cd9799f3c5d8" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_0e3e6246-5bb1-49e2-9022-4b80706d99fc" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_b85b91c1-f499-49b4-be23-cd9799f3c5d8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_1bec78ec-38c8-4b52-8b2a-351dae09c805" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_LegalMattersTable_2ee2aa55-a1c0-48a1-a92e-0aae738008eb" xlink:to="loc_srt_RangeAxis_1bec78ec-38c8-4b52-8b2a-351dae09c805" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_1bec78ec-38c8-4b52-8b2a-351dae09c805_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_1bec78ec-38c8-4b52-8b2a-351dae09c805" xlink:to="loc_srt_RangeMember_1bec78ec-38c8-4b52-8b2a-351dae09c805_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_415a5bb5-e9e7-46d8-a6b8-8fd2622efb9a" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_1bec78ec-38c8-4b52-8b2a-351dae09c805" xlink:to="loc_srt_RangeMember_415a5bb5-e9e7-46d8-a6b8-8fd2622efb9a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_b564022e-0823-485e-8277-018867892a61" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_415a5bb5-e9e7-46d8-a6b8-8fd2622efb9a" xlink:to="loc_srt_MinimumMember_b564022e-0823-485e-8277-018867892a61" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_e305c148-65c2-44d0-bf65-c5f750390b49" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_415a5bb5-e9e7-46d8-a6b8-8fd2622efb9a" xlink:to="loc_srt_MaximumMember_e305c148-65c2-44d0-bf65-c5f750390b49" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteAxis_f1e3519d-e4f4-43e4-97bb-234639f84299" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EnvironmentalRemediationSiteAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_LegalMattersTable_2ee2aa55-a1c0-48a1-a92e-0aae738008eb" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteAxis_f1e3519d-e4f4-43e4-97bb-234639f84299" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteDomain_f1e3519d-e4f4-43e4-97bb-234639f84299_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EnvironmentalRemediationSiteDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteAxis_f1e3519d-e4f4-43e4-97bb-234639f84299" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteDomain_f1e3519d-e4f4-43e4-97bb-234639f84299_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteDomain_7797045f-f79a-47a6-a886-5d378d72f64e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EnvironmentalRemediationSiteDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteAxis_f1e3519d-e4f4-43e4-97bb-234639f84299" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteDomain_7797045f-f79a-47a6-a886-5d378d72f64e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricAdditionalSitesMember_fb2ebaec-0016-433d-a4a7-b62a4a9455b7" xlink:href="ppl-20210331.xsd#ppl_PplElectricAdditionalSitesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteDomain_7797045f-f79a-47a6-a886-5d378d72f64e" xlink:to="loc_ppl_PplElectricAdditionalSitesMember_fb2ebaec-0016-433d-a4a7-b62a4a9455b7" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CommitmentsandContingenciesEnvironmentalMattersandOtherDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#CommitmentsandContingenciesEnvironmentalMattersandOtherDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CommitmentsandContingenciesEnvironmentalMattersandOtherDetails" xlink:type="extended" id="iaff4af46ebee4f96b03dafc64f29c5af_CommitmentsandContingenciesEnvironmentalMattersandOtherDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_EnvironmentalMattersLineItems_67bd9dac-9000-471f-a384-8495f314e558" xlink:href="ppl-20210331.xsd#ppl_EnvironmentalMattersLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EnvironmentalMattersDomesticAirNumericAbstract_cec47357-21da-4d4b-a655-821a0251d68c" xlink:href="ppl-20210331.xsd#ppl_EnvironmentalMattersDomesticAirNumericAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_EnvironmentalMattersLineItems_67bd9dac-9000-471f-a384-8495f314e558" xlink:to="loc_ppl_EnvironmentalMattersDomesticAirNumericAbstract_cec47357-21da-4d4b-a655-821a0251d68c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EnvironmentalMattersWaterWasteCoalCombustionResidualsNumericAbstract_adbf7b6c-3c04-4234-a962-6e943781f8da" xlink:href="ppl-20210331.xsd#ppl_EnvironmentalMattersWaterWasteCoalCombustionResidualsNumericAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_EnvironmentalMattersLineItems_67bd9dac-9000-471f-a384-8495f314e558" xlink:to="loc_ppl_EnvironmentalMattersWaterWasteCoalCombustionResidualsNumericAbstract_adbf7b6c-3c04-4234-a962-6e943781f8da" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EnvironmentalMattersSuperfundAndOtherRemediationNumericAbstract_df39a515-2e02-49f2-9387-fe0a533de50d" xlink:href="ppl-20210331.xsd#ppl_EnvironmentalMattersSuperfundAndOtherRemediationNumericAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_EnvironmentalMattersLineItems_67bd9dac-9000-471f-a384-8495f314e558" xlink:to="loc_ppl_EnvironmentalMattersSuperfundAndOtherRemediationNumericAbstract_df39a515-2e02-49f2-9387-fe0a533de50d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_a06183b9-8e88-40f7-ab95-d46c370973a4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_EnvironmentalMattersSuperfundAndOtherRemediationNumericAbstract_df39a515-2e02-49f2-9387-fe0a533de50d" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingencies_a06183b9-8e88-40f7-ab95-d46c370973a4" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherLaborUnionsAbstract_5b4c6d37-4af4-41be-ac0b-715e128bc937" xlink:href="ppl-20210331.xsd#ppl_OtherLaborUnionsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_EnvironmentalMattersLineItems_67bd9dac-9000-471f-a384-8495f314e558" xlink:to="loc_ppl_OtherLaborUnionsAbstract_5b4c6d37-4af4-41be-ac0b-715e128bc937" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CollectiveBargainingAgreementTerm_9d5ad0b3-3c31-4bf5-8aa2-067048e9f374" xlink:href="ppl-20210331.xsd#ppl_CollectiveBargainingAgreementTerm"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_EnvironmentalMattersLineItems_67bd9dac-9000-471f-a384-8495f314e558" xlink:to="loc_ppl_CollectiveBargainingAgreementTerm_9d5ad0b3-3c31-4bf5-8aa2-067048e9f374" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ConcentrationRiskNumberOfUnionEmployees_e7118be4-3d93-4ad1-bd17-c3e43d3b2dcb" xlink:href="ppl-20210331.xsd#ppl_ConcentrationRiskNumberOfUnionEmployees"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_EnvironmentalMattersLineItems_67bd9dac-9000-471f-a384-8495f314e558" xlink:to="loc_ppl_ConcentrationRiskNumberOfUnionEmployees_e7118be4-3d93-4ad1-bd17-c3e43d3b2dcb" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EnvironmentalMattersTable_36814f8d-d3eb-4cbb-96c2-97bd3475b7dd" xlink:href="ppl-20210331.xsd#ppl_EnvironmentalMattersTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_EnvironmentalMattersLineItems_67bd9dac-9000-471f-a384-8495f314e558" xlink:to="loc_ppl_EnvironmentalMattersTable_36814f8d-d3eb-4cbb-96c2-97bd3475b7dd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_ca55ac82-dd1a-4385-82ff-28f054213983" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_EnvironmentalMattersTable_36814f8d-d3eb-4cbb-96c2-97bd3475b7dd" xlink:to="loc_dei_LegalEntityAxis_ca55ac82-dd1a-4385-82ff-28f054213983" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_ca55ac82-dd1a-4385-82ff-28f054213983_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_ca55ac82-dd1a-4385-82ff-28f054213983" xlink:to="loc_dei_EntityDomain_ca55ac82-dd1a-4385-82ff-28f054213983_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_dff7dddb-a583-494d-bcd3-b453a8227512" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_ca55ac82-dd1a-4385-82ff-28f054213983" xlink:to="loc_dei_EntityDomain_dff7dddb-a583-494d-bcd3-b453a8227512" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_cac6fba5-9896-48c7-9b38-b58e50f35527" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dff7dddb-a583-494d-bcd3-b453a8227512" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_cac6fba5-9896-48c7-9b38-b58e50f35527" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_c5d227f6-bf43-49c4-ab01-10915f4c623c" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dff7dddb-a583-494d-bcd3-b453a8227512" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_c5d227f6-bf43-49c4-ab01-10915f4c623c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_fecfa0db-b428-4eee-be20-8c10314af37b" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dff7dddb-a583-494d-bcd3-b453a8227512" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_fecfa0db-b428-4eee-be20-8c10314af37b" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_d112a3e9-9aef-4d8a-9852-d246075db291" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dff7dddb-a583-494d-bcd3-b453a8227512" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_d112a3e9-9aef-4d8a-9852-d246075db291" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_ab8dd87d-b125-4bb8-b395-1169be16608c" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_EnvironmentalMattersTable_36814f8d-d3eb-4cbb-96c2-97bd3475b7dd" xlink:to="loc_ppl_ByCompanyAxis_ab8dd87d-b125-4bb8-b395-1169be16608c" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_ab8dd87d-b125-4bb8-b395-1169be16608c_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_ab8dd87d-b125-4bb8-b395-1169be16608c" xlink:to="loc_ppl_ByCompanyDomain_ab8dd87d-b125-4bb8-b395-1169be16608c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_20822f99-e848-4806-b398-92289d0bbba6" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_ab8dd87d-b125-4bb8-b395-1169be16608c" xlink:to="loc_ppl_ByCompanyDomain_20822f99-e848-4806-b398-92289d0bbba6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_5d77ab47-e284-43ce-87ac-be87631de874" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_20822f99-e848-4806-b398-92289d0bbba6" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_5d77ab47-e284-43ce-87ac-be87631de874" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_9095cb8f-deb5-4156-b7aa-754ca16f3f5d" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_20822f99-e848-4806-b398-92289d0bbba6" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_9095cb8f-deb5-4156-b7aa-754ca16f3f5d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_b7146325-4aa5-48a5-8fcc-35538ba065ef" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_20822f99-e848-4806-b398-92289d0bbba6" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_b7146325-4aa5-48a5-8fcc-35538ba065ef" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteAxis_beb42f3c-09f4-413a-945e-a5308d1487d5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EnvironmentalRemediationSiteAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_EnvironmentalMattersTable_36814f8d-d3eb-4cbb-96c2-97bd3475b7dd" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteAxis_beb42f3c-09f4-413a-945e-a5308d1487d5" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteDomain_beb42f3c-09f4-413a-945e-a5308d1487d5_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EnvironmentalRemediationSiteDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteAxis_beb42f3c-09f4-413a-945e-a5308d1487d5" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteDomain_beb42f3c-09f4-413a-945e-a5308d1487d5_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteDomain_7919eeae-ca71-43f8-91ae-65b1d1d48221" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EnvironmentalRemediationSiteDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteAxis_beb42f3c-09f4-413a-945e-a5308d1487d5" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteDomain_7919eeae-ca71-43f8-91ae-65b1d1d48221" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricAdditionalSitesMember_74181709-e17d-4f40-bd66-b8a52c39148d" xlink:href="ppl-20210331.xsd#ppl_PplElectricAdditionalSitesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteDomain_7919eeae-ca71-43f8-91ae-65b1d1d48221" xlink:to="loc_ppl_PplElectricAdditionalSitesMember_74181709-e17d-4f40-bd66-b8a52c39148d" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_1c585cca-ffe3-4195-8fc4-f301e1844d89" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_EnvironmentalMattersTable_36814f8d-d3eb-4cbb-96c2-97bd3475b7dd" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_1c585cca-ffe3-4195-8fc4-f301e1844d89" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_1c585cca-ffe3-4195-8fc4-f301e1844d89_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_1c585cca-ffe3-4195-8fc4-f301e1844d89" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_1c585cca-ffe3-4195-8fc4-f301e1844d89_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_9e32d8e4-89b6-44b0-9836-7a76f97b4954" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_1c585cca-ffe3-4195-8fc4-f301e1844d89" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_9e32d8e4-89b6-44b0-9836-7a76f97b4954" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_3cdf9e89-0b44-4d32-90ed-5b0f5d5a9bf1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_9e32d8e4-89b6-44b0-9836-7a76f97b4954" xlink:to="loc_us-gaap_SubsequentEventMember_3cdf9e89-0b44-4d32-90ed-5b0f5d5a9bf1" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/CommitmentsandContingenciesGuaranteesandOtherAssurancesDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#CommitmentsandContingenciesGuaranteesandOtherAssurancesDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/CommitmentsandContingenciesGuaranteesandOtherAssurancesDetails" xlink:type="extended" id="i5c2abe63d18a454db575b12d92d24e86_CommitmentsandContingenciesGuaranteesandOtherAssurancesDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GuaranteeObligationsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_9dbbd68e-af1a-4dfd-8418-d5f3787cf3f6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GuaranteeObligationsCurrentCarryingValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_9dbbd68e-af1a-4dfd-8418-d5f3787cf3f6" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsMaximumExposure_31155737-8c69-4022-89d2-6cf08eec5976" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GuaranteeObligationsMaximumExposure"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_us-gaap_GuaranteeObligationsMaximumExposure_31155737-8c69-4022-89d2-6cf08eec5976" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsMaximumExposureInestimable_9163dc17-642b-4848-997f-47463cd27192" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GuaranteeObligationsMaximumExposureInestimable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_us-gaap_GuaranteeObligationsMaximumExposureInestimable_9163dc17-642b-4848-997f-47463cd27192" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsTerm_d4d05a57-3d92-4465-9b32-597547ba7d07" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GuaranteeObligationsTerm"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_us-gaap_GuaranteeObligationsTerm_d4d05a57-3d92-4465-9b32-597547ba7d07" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GuaranteeMaximumExposure2021_fa350f1a-b9df-4c53-bda6-ffa5d8d822de" xlink:href="ppl-20210331.xsd#ppl_GuaranteeMaximumExposure2021"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_ppl_GuaranteeMaximumExposure2021_fa350f1a-b9df-4c53-bda6-ffa5d8d822de" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ProportionateShareOfOhioValleyElectricCorporationOutstandingDebt_43f2baf4-45fe-4702-bf7f-56fc7bb9d7f7" xlink:href="ppl-20210331.xsd#ppl_ProportionateShareOfOhioValleyElectricCorporationOutstandingDebt"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_ppl_ProportionateShareOfOhioValleyElectricCorporationOutstandingDebt_43f2baf4-45fe-4702-bf7f-56fc7bb9d7f7" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_MinimumPeriodInYearsThatIndemnificationsGenerallyExpire_d66918f0-3ea4-449a-83f6-870b4a2cab44" xlink:href="ppl-20210331.xsd#ppl_MinimumPeriodInYearsThatIndemnificationsGenerallyExpire"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_ppl_MinimumPeriodInYearsThatIndemnificationsGenerallyExpire_d66918f0-3ea4-449a-83f6-870b4a2cab44" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_MaximumPeriodInYearsThatIndemnificationsGenerallyExpire_f66935b7-a6b1-4129-be1d-2958f2cccd21" xlink:href="ppl-20210331.xsd#ppl_MaximumPeriodInYearsThatIndemnificationsGenerallyExpire"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_ppl_MaximumPeriodInYearsThatIndemnificationsGenerallyExpire_f66935b7-a6b1-4129-be1d-2958f2cccd21" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherGuaranteeNumericAbstract_b3a54901-f6e4-4405-8702-4bd4439d46ba" xlink:href="ppl-20210331.xsd#ppl_OtherGuaranteeNumericAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_ppl_OtherGuaranteeNumericAbstract_b3a54901-f6e4-4405-8702-4bd4439d46ba" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_MaximumAggregateCoverageBodilyInjuryAndPropertyDamage_837f3f9d-8b6a-429b-b7a7-24de94e3429e" xlink:href="ppl-20210331.xsd#ppl_MaximumAggregateCoverageBodilyInjuryAndPropertyDamage"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherGuaranteeNumericAbstract_b3a54901-f6e4-4405-8702-4bd4439d46ba" xlink:to="loc_ppl_MaximumAggregateCoverageBodilyInjuryAndPropertyDamage_837f3f9d-8b6a-429b-b7a7-24de94e3429e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CollectiveBargainingAgreementTerm_42123733-dd72-43c5-8083-875932a691b8" xlink:href="ppl-20210331.xsd#ppl_CollectiveBargainingAgreementTerm"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_ppl_CollectiveBargainingAgreementTerm_42123733-dd72-43c5-8083-875932a691b8" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_bef22b9d-88fa-4420-bc81-17829a64064a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfGuaranteeObligationsTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_4d026bad-e389-491b-ae92-859bad265c58" xlink:to="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_bef22b9d-88fa-4420-bc81-17829a64064a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_f16b78d2-5dbe-4fef-8f5c-dc96a5a6deb6" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_bef22b9d-88fa-4420-bc81-17829a64064a" xlink:to="loc_dei_LegalEntityAxis_f16b78d2-5dbe-4fef-8f5c-dc96a5a6deb6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_f16b78d2-5dbe-4fef-8f5c-dc96a5a6deb6_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_f16b78d2-5dbe-4fef-8f5c-dc96a5a6deb6" xlink:to="loc_dei_EntityDomain_f16b78d2-5dbe-4fef-8f5c-dc96a5a6deb6_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_1bf372d7-e3e3-47bd-a221-43921a8e0b22" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_f16b78d2-5dbe-4fef-8f5c-dc96a5a6deb6" xlink:to="loc_dei_EntityDomain_1bf372d7-e3e3-47bd-a221-43921a8e0b22" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_673f255a-356c-46ff-8c43-c269e656ebfb" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_1bf372d7-e3e3-47bd-a221-43921a8e0b22" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_673f255a-356c-46ff-8c43-c269e656ebfb" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_34cf94eb-c888-45ac-95e7-9d2275f68dd3" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_1bf372d7-e3e3-47bd-a221-43921a8e0b22" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_34cf94eb-c888-45ac-95e7-9d2275f68dd3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_3563f776-1d9d-469b-b0f8-ad271e69a8f5" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_1bf372d7-e3e3-47bd-a221-43921a8e0b22" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_3563f776-1d9d-469b-b0f8-ad271e69a8f5" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_948bb526-0423-4bf7-af43-6544f34984f2" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_1bf372d7-e3e3-47bd-a221-43921a8e0b22" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_948bb526-0423-4bf7-af43-6544f34984f2" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_62882081-77c6-4759-a567-79f86c6adb2b" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_bef22b9d-88fa-4420-bc81-17829a64064a" xlink:to="loc_ppl_ByCompanyAxis_62882081-77c6-4759-a567-79f86c6adb2b" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_62882081-77c6-4759-a567-79f86c6adb2b_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_62882081-77c6-4759-a567-79f86c6adb2b" xlink:to="loc_ppl_ByCompanyDomain_62882081-77c6-4759-a567-79f86c6adb2b_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_4d2051d3-d175-41e1-bc04-b713ad299981" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_62882081-77c6-4759-a567-79f86c6adb2b" xlink:to="loc_ppl_ByCompanyDomain_4d2051d3-d175-41e1-bc04-b713ad299981" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorporationMember_3197808c-2742-417e-9825-36fe162da8db" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_4d2051d3-d175-41e1-bc04-b713ad299981" xlink:to="loc_ppl_PplElectricUtilitiesCorporationMember_3197808c-2742-417e-9825-36fe162da8db" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCompanyMember_efe5865d-16da-42b8-8083-7966c6247c6b" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_4d2051d3-d175-41e1-bc04-b713ad299981" xlink:to="loc_ppl_KentuckyUtilitiesCompanyMember_efe5865d-16da-42b8-8083-7966c6247c6b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GuaranteeByEntityAxis_c8153ed1-b925-42cc-9bf9-c3f46ce3c35b" xlink:href="ppl-20210331.xsd#ppl_GuaranteeByEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_bef22b9d-88fa-4420-bc81-17829a64064a" xlink:to="loc_ppl_GuaranteeByEntityAxis_c8153ed1-b925-42cc-9bf9-c3f46ce3c35b" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GuaranteeByEntityDomain_c8153ed1-b925-42cc-9bf9-c3f46ce3c35b_default" xlink:href="ppl-20210331.xsd#ppl_GuaranteeByEntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_GuaranteeByEntityAxis_c8153ed1-b925-42cc-9bf9-c3f46ce3c35b" xlink:to="loc_ppl_GuaranteeByEntityDomain_c8153ed1-b925-42cc-9bf9-c3f46ce3c35b_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GuaranteeByEntityDomain_d5c0b0f7-e63c-4115-8ef8-7c71148850eb" xlink:href="ppl-20210331.xsd#ppl_GuaranteeByEntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_GuaranteeByEntityAxis_c8153ed1-b925-42cc-9bf9-c3f46ce3c35b" xlink:to="loc_ppl_GuaranteeByEntityDomain_d5c0b0f7-e63c-4115-8ef8-7c71148850eb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplGuaranteeMember_9acc39f6-2f62-40d2-ad8c-c22d971e9ba1" xlink:href="ppl-20210331.xsd#ppl_PplGuaranteeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByEntityDomain_d5c0b0f7-e63c-4115-8ef8-7c71148850eb" xlink:to="loc_ppl_PplGuaranteeMember_9acc39f6-2f62-40d2-ad8c-c22d971e9ba1" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricGuaranteeMember_a5401216-3a43-4da4-9518-5c2f9284473c" xlink:href="ppl-20210331.xsd#ppl_PplElectricGuaranteeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByEntityDomain_d5c0b0f7-e63c-4115-8ef8-7c71148850eb" xlink:to="loc_ppl_PplElectricGuaranteeMember_a5401216-3a43-4da4-9518-5c2f9284473c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricAndKuEnergyGuaranteeMember_58c4d89f-9695-4661-a994-1246834f3d18" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricAndKuEnergyGuaranteeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByEntityDomain_d5c0b0f7-e63c-4115-8ef8-7c71148850eb" xlink:to="loc_ppl_LouisvilleGasAndElectricAndKuEnergyGuaranteeMember_58c4d89f-9695-4661-a994-1246834f3d18" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyAndKentuckyUtilitiesGuaranteeMember_1b7f99f8-bc4b-4427-8cbe-aa1cb0167d9d" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyAndKentuckyUtilitiesGuaranteeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByEntityDomain_d5c0b0f7-e63c-4115-8ef8-7c71148850eb" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyAndKentuckyUtilitiesGuaranteeMember_1b7f99f8-bc4b-4427-8cbe-aa1cb0167d9d" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsByNatureAxis_a29673d9-8114-463a-b4ce-ea55e8626c3a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GuaranteeObligationsByNatureAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_bef22b9d-88fa-4420-bc81-17829a64064a" xlink:to="loc_us-gaap_GuaranteeObligationsByNatureAxis_a29673d9-8114-463a-b4ce-ea55e8626c3a" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsNatureDomain_a29673d9-8114-463a-b4ce-ea55e8626c3a_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GuaranteeObligationsNatureDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_GuaranteeObligationsByNatureAxis_a29673d9-8114-463a-b4ce-ea55e8626c3a" xlink:to="loc_us-gaap_GuaranteeObligationsNatureDomain_a29673d9-8114-463a-b4ce-ea55e8626c3a_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsNatureDomain_afedf941-2ed3-4aef-aef4-f0d28531eaa5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GuaranteeObligationsNatureDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_GuaranteeObligationsByNatureAxis_a29673d9-8114-463a-b4ce-ea55e8626c3a" xlink:to="loc_us-gaap_GuaranteeObligationsNatureDomain_afedf941-2ed3-4aef-aef4-f0d28531eaa5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndemnificationGuaranteeMember_8ee9200e-c0cb-4615-81b1-b57d38bbb122" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IndemnificationGuaranteeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsNatureDomain_afedf941-2ed3-4aef-aef4-f0d28531eaa5" xlink:to="loc_us-gaap_IndemnificationGuaranteeMember_8ee9200e-c0cb-4615-81b1-b57d38bbb122" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialGuaranteeMember_cb2f202d-f75e-4a8a-80ba-20a1d911419a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinancialGuaranteeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsNatureDomain_afedf941-2ed3-4aef-aef4-f0d28531eaa5" xlink:to="loc_us-gaap_FinancialGuaranteeMember_cb2f202d-f75e-4a8a-80ba-20a1d911419a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GuaranteeByDescriptionAxis_2eeb158f-557e-4a09-8ddd-bbd732c9ba2d" xlink:href="ppl-20210331.xsd#ppl_GuaranteeByDescriptionAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_bef22b9d-88fa-4420-bc81-17829a64064a" xlink:to="loc_ppl_GuaranteeByDescriptionAxis_2eeb158f-557e-4a09-8ddd-bbd732c9ba2d" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GuaranteeByDescriptionDomain_2eeb158f-557e-4a09-8ddd-bbd732c9ba2d_default" xlink:href="ppl-20210331.xsd#ppl_GuaranteeByDescriptionDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_GuaranteeByDescriptionAxis_2eeb158f-557e-4a09-8ddd-bbd732c9ba2d" xlink:to="loc_ppl_GuaranteeByDescriptionDomain_2eeb158f-557e-4a09-8ddd-bbd732c9ba2d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GuaranteeByDescriptionDomain_05822d20-9f19-4b29-95d7-748ab772b7c1" xlink:href="ppl-20210331.xsd#ppl_GuaranteeByDescriptionDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_GuaranteeByDescriptionAxis_2eeb158f-557e-4a09-8ddd-bbd732c9ba2d" xlink:to="loc_ppl_GuaranteeByDescriptionDomain_05822d20-9f19-4b29-95d7-748ab772b7c1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IndemnificationsRelatedToWpdMidlandsAcquisitionMember_6838fb9e-6c2e-4d29-8727-abb14b6ab4de" xlink:href="ppl-20210331.xsd#ppl_IndemnificationsRelatedToWpdMidlandsAcquisitionMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByDescriptionDomain_05822d20-9f19-4b29-95d7-748ab772b7c1" xlink:to="loc_ppl_IndemnificationsRelatedToWpdMidlandsAcquisitionMember_6838fb9e-6c2e-4d29-8727-abb14b6ab4de" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WPDIndemnificationsForEntitiesInLiquidationSalesOfAssetsMember_470848c7-1c64-4d56-b524-c28db8c6fcb8" xlink:href="ppl-20210331.xsd#ppl_WPDIndemnificationsForEntitiesInLiquidationSalesOfAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByDescriptionDomain_05822d20-9f19-4b29-95d7-748ab772b7c1" xlink:to="loc_ppl_WPDIndemnificationsForEntitiesInLiquidationSalesOfAssetsMember_470848c7-1c64-4d56-b524-c28db8c6fcb8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WpdGuaranteeOfPensionAndOtherObligationsOfUnconsolidatedEntitiesMember_dd6b6450-b38c-494c-acbc-0ec41032e213" xlink:href="ppl-20210331.xsd#ppl_WpdGuaranteeOfPensionAndOtherObligationsOfUnconsolidatedEntitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByDescriptionDomain_05822d20-9f19-4b29-95d7-748ab772b7c1" xlink:to="loc_ppl_WpdGuaranteeOfPensionAndOtherObligationsOfUnconsolidatedEntitiesMember_dd6b6450-b38c-494c-acbc-0ec41032e213" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GuaranteeOfInventoryValueMember_11ecfcd9-fed2-45d0-a08b-723d5c4d6154" xlink:href="ppl-20210331.xsd#ppl_GuaranteeOfInventoryValueMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByDescriptionDomain_05822d20-9f19-4b29-95d7-748ab772b7c1" xlink:to="loc_ppl_GuaranteeOfInventoryValueMember_11ecfcd9-fed2-45d0-a08b-723d5c4d6154" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IndemnificationsIssuedByLkeMember_c74bd180-e423-4ca9-a607-533bd1ef0f9a" xlink:href="ppl-20210331.xsd#ppl_IndemnificationsIssuedByLkeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByDescriptionDomain_05822d20-9f19-4b29-95d7-748ab772b7c1" xlink:to="loc_ppl_IndemnificationsIssuedByLkeMember_c74bd180-e423-4ca9-a607-533bd1ef0f9a" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_GuaranteeForShortfallRelatedToOhioValleyElectricCorporationMember_6fabc2f1-f6b9-4b82-9a59-e3ba3aee2786" xlink:href="ppl-20210331.xsd#ppl_GuaranteeForShortfallRelatedToOhioValleyElectricCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByDescriptionDomain_05822d20-9f19-4b29-95d7-748ab772b7c1" xlink:to="loc_ppl_GuaranteeForShortfallRelatedToOhioValleyElectricCorporationMember_6fabc2f1-f6b9-4b82-9a59-e3ba3aee2786" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IndemnificationsForEntitiesInLiquidationSalesOfAssetsMember_efbb4acd-d29c-4178-bc38-ecc1b80215e3" xlink:href="ppl-20210331.xsd#ppl_IndemnificationsForEntitiesInLiquidationSalesOfAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_GuaranteeByDescriptionDomain_05822d20-9f19-4b29-95d7-748ab772b7c1" xlink:to="loc_ppl_IndemnificationsForEntitiesInLiquidationSalesOfAssetsMember_efbb4acd-d29c-4178-bc38-ecc1b80215e3" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_92ea51cc-f70c-4228-b6bc-e99e15dc5bd4" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_bef22b9d-88fa-4420-bc81-17829a64064a" xlink:to="loc_srt_RangeAxis_92ea51cc-f70c-4228-b6bc-e99e15dc5bd4" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_92ea51cc-f70c-4228-b6bc-e99e15dc5bd4_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_92ea51cc-f70c-4228-b6bc-e99e15dc5bd4" xlink:to="loc_srt_RangeMember_92ea51cc-f70c-4228-b6bc-e99e15dc5bd4_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_0ef0a88e-4f33-44c2-a540-81dd66fcb265" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_92ea51cc-f70c-4228-b6bc-e99e15dc5bd4" xlink:to="loc_srt_RangeMember_0ef0a88e-4f33-44c2-a540-81dd66fcb265" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_ddeb17cd-27ba-43db-9bcb-60aec7e0de22" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_0ef0a88e-4f33-44c2-a540-81dd66fcb265" xlink:to="loc_srt_MinimumMember_ddeb17cd-27ba-43db-9bcb-60aec7e0de22" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_05f649e4-5850-4163-a969-9dc89a226538" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_0ef0a88e-4f33-44c2-a540-81dd66fcb265" xlink:to="loc_srt_MaximumMember_05f649e4-5850-4163-a969-9dc89a226538" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/RelatedPartyTransactions" xlink:type="simple" xlink:href="ppl-20210331.xsd#RelatedPartyTransactions"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/RelatedPartyTransactions" xlink:type="extended" id="ib9d2950364c14a1eac26efa22ae51e7a_RelatedPartyTransactions">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_cdbcb79a-2d3d-4d9d-830c-3d676b56a490" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_0b340542-f84c-48a6-a4a5-09f459e47ccc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_cdbcb79a-2d3d-4d9d-830c-3d676b56a490" xlink:to="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_0b340542-f84c-48a6-a4a5-09f459e47ccc" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisclosureTable_e7fdd743-5342-46f2-babc-fec4a2c01408" xlink:href="ppl-20210331.xsd#ppl_DisclosureTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_cdbcb79a-2d3d-4d9d-830c-3d676b56a490" xlink:to="loc_ppl_DisclosureTable_e7fdd743-5342-46f2-babc-fec4a2c01408" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_f71dd6e6-7714-4b56-ae96-abfb5a2f5b0a" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DisclosureTable_e7fdd743-5342-46f2-babc-fec4a2c01408" xlink:to="loc_dei_LegalEntityAxis_f71dd6e6-7714-4b56-ae96-abfb5a2f5b0a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_f71dd6e6-7714-4b56-ae96-abfb5a2f5b0a_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_f71dd6e6-7714-4b56-ae96-abfb5a2f5b0a" xlink:to="loc_dei_EntityDomain_f71dd6e6-7714-4b56-ae96-abfb5a2f5b0a_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_d60fe560-217c-478e-aab7-654df28ae8e5" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_f71dd6e6-7714-4b56-ae96-abfb5a2f5b0a" xlink:to="loc_dei_EntityDomain_d60fe560-217c-478e-aab7-654df28ae8e5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_d3488600-c3a2-4012-b7d4-e9ee358b2c65" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_d60fe560-217c-478e-aab7-654df28ae8e5" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_d3488600-c3a2-4012-b7d4-e9ee358b2c65" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_a98fdb04-2301-4859-901e-b163b58eeaae" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_d60fe560-217c-478e-aab7-654df28ae8e5" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_a98fdb04-2301-4859-901e-b163b58eeaae" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_c7fd0ef3-4ff6-4b72-9603-08f490ade0f2" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_d60fe560-217c-478e-aab7-654df28ae8e5" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_c7fd0ef3-4ff6-4b72-9603-08f490ade0f2" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_c37bf8fe-e053-4ce2-a71e-61cd0337855d" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_d60fe560-217c-478e-aab7-654df28ae8e5" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_c37bf8fe-e053-4ce2-a71e-61cd0337855d" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/RelatedPartyTransactionsTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#RelatedPartyTransactionsTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/RelatedPartyTransactionsTables" xlink:type="extended" id="i8b1fea67e4d44b9491bd6f136d8ee791_RelatedPartyTransactionsTables">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_54b4d4a4-d330-47ab-ad49-f956e9bac559" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ScheduleOfIntercompanySupportCostAllocationsTableTextBlock_b408cca7-90a7-4265-a78e-382580922b31" xlink:href="ppl-20210331.xsd#ppl_ScheduleOfIntercompanySupportCostAllocationsTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_54b4d4a4-d330-47ab-ad49-f956e9bac559" xlink:to="loc_ppl_ScheduleOfIntercompanySupportCostAllocationsTableTextBlock_b408cca7-90a7-4265-a78e-382580922b31" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisclosureTable_d59d79cc-5997-4a39-80f9-3cf3aad2b90e" xlink:href="ppl-20210331.xsd#ppl_DisclosureTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_54b4d4a4-d330-47ab-ad49-f956e9bac559" xlink:to="loc_ppl_DisclosureTable_d59d79cc-5997-4a39-80f9-3cf3aad2b90e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_40cd3285-25ea-487d-bb8c-d50e39584fb2" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DisclosureTable_d59d79cc-5997-4a39-80f9-3cf3aad2b90e" xlink:to="loc_dei_LegalEntityAxis_40cd3285-25ea-487d-bb8c-d50e39584fb2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_40cd3285-25ea-487d-bb8c-d50e39584fb2_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_40cd3285-25ea-487d-bb8c-d50e39584fb2" xlink:to="loc_dei_EntityDomain_40cd3285-25ea-487d-bb8c-d50e39584fb2_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_c885f4a6-8b55-40f2-b198-70922271af8b" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_40cd3285-25ea-487d-bb8c-d50e39584fb2" xlink:to="loc_dei_EntityDomain_c885f4a6-8b55-40f2-b198-70922271af8b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_ec8b2ebd-f23b-4b0a-8d3b-e6773a042b7a" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_c885f4a6-8b55-40f2-b198-70922271af8b" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_ec8b2ebd-f23b-4b0a-8d3b-e6773a042b7a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_a398809f-ac68-4211-adbf-782da7d6bee5" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_c885f4a6-8b55-40f2-b198-70922271af8b" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_a398809f-ac68-4211-adbf-782da7d6bee5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_d5940c14-b23a-40ed-8978-4c9f1e21cf93" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_c885f4a6-8b55-40f2-b198-70922271af8b" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_d5940c14-b23a-40ed-8978-4c9f1e21cf93" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_7b5d1eae-7bd1-446b-bed5-c8a8706b400f" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_c885f4a6-8b55-40f2-b198-70922271af8b" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_7b5d1eae-7bd1-446b-bed5-c8a8706b400f" xlink:type="arc" order="3"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/RelatedPartyTransactionsDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#RelatedPartyTransactionsDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/RelatedPartyTransactionsDetails" xlink:type="extended" id="ia49fb829052c4a3ba926f66f38de8c05_RelatedPartyTransactionsDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_3af69d2e-8662-41f5-85f9-3df80a1e57b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SupportCostsDetailsAbstract_1e9340a4-945a-412c-aae2-8c00065795aa" xlink:href="ppl-20210331.xsd#ppl_SupportCostsDetailsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_3af69d2e-8662-41f5-85f9-3df80a1e57b5" xlink:to="loc_ppl_SupportCostsDetailsAbstract_1e9340a4-945a-412c-aae2-8c00065795aa" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_535c6da8-3887-410c-b258-1ef688cc572e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_SupportCostsDetailsAbstract_1e9340a4-945a-412c-aae2-8c00065795aa" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_535c6da8-3887-410c-b258-1ef688cc572e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:href="ppl-20210331.xsd#ppl_IntercompanyBorrowingsNumericAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_3af69d2e-8662-41f5-85f9-3df80a1e57b5" xlink:to="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_67380e50-6127-43ce-bbce-765992a0c453" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTerm"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:to="loc_us-gaap_DebtInstrumentTerm_67380e50-6127-43ce-bbce-765992a0c453" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IntercompanyNoteAffiliateMaximumBorrowingCapacity_a7371b35-8043-43e7-b5ac-4fba77a4f075" xlink:href="ppl-20210331.xsd#ppl_IntercompanyNoteAffiliateMaximumBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:to="loc_ppl_IntercompanyNoteAffiliateMaximumBorrowingCapacity_a7371b35-8043-43e7-b5ac-4fba77a4f075" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableRelatedPartiesCurrent_8767e19d-b1b8-49f9-8202-3748b9264213" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NotesReceivableRelatedPartiesCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:to="loc_us-gaap_NotesReceivableRelatedPartiesCurrent_8767e19d-b1b8-49f9-8202-3748b9264213" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableRelatedPartiesNoncurrent_12186a85-4518-4d70-94a4-b16950b658c5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NotesPayableRelatedPartiesNoncurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:to="loc_us-gaap_NotesPayableRelatedPartiesNoncurrent_12186a85-4518-4d70-94a4-b16950b658c5" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseRelatedParty_c9fbdd62-8b06-4ab2-8c33-b76143bb38ed" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseRelatedParty"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:to="loc_us-gaap_InterestExpenseRelatedParty_c9fbdd62-8b06-4ab2-8c33-b76143bb38ed" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_IntercompanyMoneyPoolAgreementMaximumBorrowingCapacity_9dd6ab2e-5c31-4c84-b4f5-b0ba210ad40f" xlink:href="ppl-20210331.xsd#ppl_IntercompanyMoneyPoolAgreementMaximumBorrowingCapacity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:to="loc_ppl_IntercompanyMoneyPoolAgreementMaximumBorrowingCapacity_9dd6ab2e-5c31-4c84-b4f5-b0ba210ad40f" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent_d9c8fac1-a395-45ea-8898-997bba850a11" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NotesPayableRelatedPartiesClassifiedCurrent"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:to="loc_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent_d9c8fac1-a395-45ea-8898-997bba850a11" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_af879e4c-1e15-4c03-b5d4-74ea23c2ac8c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_af879e4c-1e15-4c03-b5d4-74ea23c2ac8c" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionRate_f9feb04d-8b11-4fcb-99f4-f15e35ec65fb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionRate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_IntercompanyBorrowingsNumericAbstract_47104e40-54de-4145-a4cc-c74b112b67e7" xlink:to="loc_us-gaap_RelatedPartyTransactionRate_f9feb04d-8b11-4fcb-99f4-f15e35ec65fb" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_VEBAFundsReceivable_55a16ce0-9d0d-458b-bd28-3933adce8ea2" xlink:href="ppl-20210331.xsd#ppl_VEBAFundsReceivable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_3af69d2e-8662-41f5-85f9-3df80a1e57b5" xlink:to="loc_ppl_VEBAFundsReceivable_55a16ce0-9d0d-458b-bd28-3933adce8ea2" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_3240d9db-dfc3-4a1d-888c-d28084e32137" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_3af69d2e-8662-41f5-85f9-3df80a1e57b5" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_3240d9db-dfc3-4a1d-888c-d28084e32137" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_86c6bb04-697d-4ebb-85cc-9a6d838c3d6d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_3240d9db-dfc3-4a1d-888c-d28084e32137" xlink:to="loc_dei_LegalEntityAxis_86c6bb04-697d-4ebb-85cc-9a6d838c3d6d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_86c6bb04-697d-4ebb-85cc-9a6d838c3d6d_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_86c6bb04-697d-4ebb-85cc-9a6d838c3d6d" xlink:to="loc_dei_EntityDomain_86c6bb04-697d-4ebb-85cc-9a6d838c3d6d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_9f69adac-af03-4eac-b5d1-73263ea1248f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_86c6bb04-697d-4ebb-85cc-9a6d838c3d6d" xlink:to="loc_dei_EntityDomain_9f69adac-af03-4eac-b5d1-73263ea1248f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_fd714849-8990-4258-ba51-5513d7beb533" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_9f69adac-af03-4eac-b5d1-73263ea1248f" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_fd714849-8990-4258-ba51-5513d7beb533" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_e36e781f-8062-42a7-880c-32bbef55d0fb" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_9f69adac-af03-4eac-b5d1-73263ea1248f" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_e36e781f-8062-42a7-880c-32bbef55d0fb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_6a1b815e-34e8-402d-bda7-ecfc3e0cb39d" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_9f69adac-af03-4eac-b5d1-73263ea1248f" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_6a1b815e-34e8-402d-bda7-ecfc3e0cb39d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_7bfda4a6-8522-450d-850b-bfaf30ce302e" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_9f69adac-af03-4eac-b5d1-73263ea1248f" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_7bfda4a6-8522-450d-850b-bfaf30ce302e" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_4e45195e-36ad-4b26-b719-cc97f310a2d6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_3240d9db-dfc3-4a1d-888c-d28084e32137" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_4e45195e-36ad-4b26-b719-cc97f310a2d6" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_4e45195e-36ad-4b26-b719-cc97f310a2d6_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_4e45195e-36ad-4b26-b719-cc97f310a2d6" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_4e45195e-36ad-4b26-b719-cc97f310a2d6_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_29842b9e-8baa-4f3c-a149-8854caa92d22" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_4e45195e-36ad-4b26-b719-cc97f310a2d6" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_29842b9e-8baa-4f3c-a149-8854caa92d22" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AccountsreceivablefromaffiliatesMember_5ba99447-cdc4-43ea-af51-551b1639a2a2" xlink:href="ppl-20210331.xsd#ppl_AccountsreceivablefromaffiliatesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_29842b9e-8baa-4f3c-a149-8854caa92d22" xlink:to="loc_ppl_AccountsreceivablefromaffiliatesMember_5ba99447-cdc4-43ea-af51-551b1639a2a2" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentAssetsMember_1dc51c75-e7ea-49fc-9c38-32fe5d1dd319" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNoncurrentAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_29842b9e-8baa-4f3c-a149-8854caa92d22" xlink:to="loc_us-gaap_OtherNoncurrentAssetsMember_1dc51c75-e7ea-49fc-9c38-32fe5d1dd319" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_6eb83e15-7a10-4b62-bcaa-dc5892763a26" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_3240d9db-dfc3-4a1d-888c-d28084e32137" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_6eb83e15-7a10-4b62-bcaa-dc5892763a26" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_6eb83e15-7a10-4b62-bcaa-dc5892763a26_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_6eb83e15-7a10-4b62-bcaa-dc5892763a26" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_6eb83e15-7a10-4b62-bcaa-dc5892763a26_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_4d0ec58f-99c1-4eac-aa25-76879d2872ad" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_6eb83e15-7a10-4b62-bcaa-dc5892763a26" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_4d0ec58f-99c1-4eac-aa25-76879d2872ad" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NotePayableMember_10aca922-06e3-4b95-b0b9-04c9c41b3042" xlink:href="ppl-20210331.xsd#ppl_NotePayableMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_4d0ec58f-99c1-4eac-aa25-76879d2872ad" xlink:to="loc_ppl_NotePayableMember_10aca922-06e3-4b95-b0b9-04c9c41b3042" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NotePayable1Member_b496aa2c-d117-4830-b1a1-c1a42282f31e" xlink:href="ppl-20210331.xsd#ppl_NotePayable1Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_4d0ec58f-99c1-4eac-aa25-76879d2872ad" xlink:to="loc_ppl_NotePayable1Member_b496aa2c-d117-4830-b1a1-c1a42282f31e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NotePayable2Member_bf387563-59e3-46ba-9d0a-4a5b61c2b303" xlink:href="ppl-20210331.xsd#ppl_NotePayable2Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_4d0ec58f-99c1-4eac-aa25-76879d2872ad" xlink:to="loc_ppl_NotePayable2Member_bf387563-59e3-46ba-9d0a-4a5b61c2b303" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_e557679f-084c-478d-ae36-335635a9ef49" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_3240d9db-dfc3-4a1d-888c-d28084e32137" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_e557679f-084c-478d-ae36-335635a9ef49" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_e557679f-084c-478d-ae36-335635a9ef49_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_e557679f-084c-478d-ae36-335635a9ef49" xlink:to="loc_us-gaap_RelatedPartyDomain_e557679f-084c-478d-ae36-335635a9ef49_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_f5fe9074-6e2d-42eb-9017-32fd94f3e96d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_e557679f-084c-478d-ae36-335635a9ef49" xlink:to="loc_us-gaap_RelatedPartyDomain_f5fe9074-6e2d-42eb-9017-32fd94f3e96d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ServicesCompanyAffiliateMember_ad3e0e88-5688-437d-b0b2-aecc2aadedcd" xlink:href="ppl-20210331.xsd#ppl_ServicesCompanyAffiliateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_f5fe9074-6e2d-42eb-9017-32fd94f3e96d" xlink:to="loc_ppl_ServicesCompanyAffiliateMember_ad3e0e88-5688-437d-b0b2-aecc2aadedcd" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EuServicesCompanyAffiliateMember_6c53aec2-3fc6-4a57-8635-311c3814b4a5" xlink:href="ppl-20210331.xsd#ppl_EuServicesCompanyAffiliateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_f5fe9074-6e2d-42eb-9017-32fd94f3e96d" xlink:to="loc_ppl_EuServicesCompanyAffiliateMember_6c53aec2-3fc6-4a57-8635-311c3814b4a5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplEnergyFundingCorporationMember_4327348f-9b78-4e1c-8800-e45ed8536987" xlink:href="ppl-20210331.xsd#ppl_PplEnergyFundingCorporationMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_f5fe9074-6e2d-42eb-9017-32fd94f3e96d" xlink:to="loc_ppl_PplEnergyFundingCorporationMember_4327348f-9b78-4e1c-8800-e45ed8536987" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_AffiliatedEntityMember_390c4613-c2ad-4e60-85d0-88341d6c6434" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_AffiliatedEntityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_f5fe9074-6e2d-42eb-9017-32fd94f3e96d" xlink:to="loc_srt_AffiliatedEntityMember_390c4613-c2ad-4e60-85d0-88341d6c6434" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ParentAndAffiliateMember_7aee6725-e7de-4f9d-8c43-3b29fe097ac9" xlink:href="ppl-20210331.xsd#ppl_ParentAndAffiliateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_f5fe9074-6e2d-42eb-9017-32fd94f3e96d" xlink:to="loc_ppl_ParentAndAffiliateMember_7aee6725-e7de-4f9d-8c43-3b29fe097ac9" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CompanyAffiliateMember_6c2452ed-30ed-4a26-ac08-5dab910336ac" xlink:href="ppl-20210331.xsd#ppl_CompanyAffiliateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_f5fe9074-6e2d-42eb-9017-32fd94f3e96d" xlink:to="loc_ppl_CompanyAffiliateMember_6c2452ed-30ed-4a26-ac08-5dab910336ac" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUServicesCompanyMember_c47f20b5-cab3-4f51-b78f-eb2589fba306" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUServicesCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_f5fe9074-6e2d-42eb-9017-32fd94f3e96d" xlink:to="loc_ppl_LGAndEAndKUServicesCompanyMember_c47f20b5-cab3-4f51-b78f-eb2589fba306" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CompanyAfiliate1Member_9d10bc63-59c9-4e58-915c-3a46032b544f" xlink:href="ppl-20210331.xsd#ppl_CompanyAfiliate1Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_f5fe9074-6e2d-42eb-9017-32fd94f3e96d" xlink:to="loc_ppl_CompanyAfiliate1Member_9d10bc63-59c9-4e58-915c-3a46032b544f" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_2c90ffef-be11-44c9-ae82-be7f8163c797" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CounterpartyNameAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_3240d9db-dfc3-4a1d-888c-d28084e32137" xlink:to="loc_srt_CounterpartyNameAxis_2c90ffef-be11-44c9-ae82-be7f8163c797" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_2c90ffef-be11-44c9-ae82-be7f8163c797_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_2c90ffef-be11-44c9-ae82-be7f8163c797" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_2c90ffef-be11-44c9-ae82-be7f8163c797_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_02238ddb-c710-45fa-9bbf-fcb0c1c27191" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_2c90ffef-be11-44c9-ae82-be7f8163c797" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_02238ddb-c710-45fa-9bbf-fcb0c1c27191" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UnaffiliatedThirdPartyEntityMember_2718c0d1-00cb-4ed8-935a-52f8640607b9" xlink:href="ppl-20210331.xsd#ppl_UnaffiliatedThirdPartyEntityMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_02238ddb-c710-45fa-9bbf-fcb0c1c27191" xlink:to="loc_ppl_UnaffiliatedThirdPartyEntityMember_2718c0d1-00cb-4ed8-935a-52f8640607b9" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/OtherIncomeExpensenet" xlink:type="simple" xlink:href="ppl-20210331.xsd#OtherIncomeExpensenet"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/OtherIncomeExpensenet" xlink:type="extended" id="id1164ea561604c66a8adaadab68cb4e6_OtherIncomeExpensenet">
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherIncomeExpenseNetLineItems_252a251e-b8d4-4c56-95e5-5b8a26af6235" xlink:href="ppl-20210331.xsd#ppl_OtherIncomeExpenseNetLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherIncomeOtherExpenseDisclosureNonoperatingTextBlock_e99651e1-e387-4c69-84eb-bba8a527609b" xlink:href="ppl-20210331.xsd#ppl_OtherIncomeOtherExpenseDisclosureNonoperatingTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherIncomeExpenseNetLineItems_252a251e-b8d4-4c56-95e5-5b8a26af6235" xlink:to="loc_ppl_OtherIncomeOtherExpenseDisclosureNonoperatingTextBlock_e99651e1-e387-4c69-84eb-bba8a527609b" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisclosureTable_e9d009e9-5b6d-4e65-8175-adde7c4d99a7" xlink:href="ppl-20210331.xsd#ppl_DisclosureTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_OtherIncomeExpenseNetLineItems_252a251e-b8d4-4c56-95e5-5b8a26af6235" xlink:to="loc_ppl_DisclosureTable_e9d009e9-5b6d-4e65-8175-adde7c4d99a7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_53fffbf1-70e4-41c9-bff4-79432ed1205c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DisclosureTable_e9d009e9-5b6d-4e65-8175-adde7c4d99a7" xlink:to="loc_dei_LegalEntityAxis_53fffbf1-70e4-41c9-bff4-79432ed1205c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_53fffbf1-70e4-41c9-bff4-79432ed1205c_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_53fffbf1-70e4-41c9-bff4-79432ed1205c" xlink:to="loc_dei_EntityDomain_53fffbf1-70e4-41c9-bff4-79432ed1205c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_50b366c2-ac36-498e-a8aa-7ebd6ad5cdf1" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_53fffbf1-70e4-41c9-bff4-79432ed1205c" xlink:to="loc_dei_EntityDomain_50b366c2-ac36-498e-a8aa-7ebd6ad5cdf1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_46c6532a-877d-47fa-b923-ee8b7d1f1ea2" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_50b366c2-ac36-498e-a8aa-7ebd6ad5cdf1" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_46c6532a-877d-47fa-b923-ee8b7d1f1ea2" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/OtherIncomeExpensenetTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#OtherIncomeExpensenetTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/OtherIncomeExpensenetTables" xlink:type="extended" id="i91fb3f4866084ed4aa120249a10d359d_OtherIncomeExpensenetTables">
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherIncomeExpenseNetLineItems_cd2a9ea7-fa6b-4b4c-a741-583adcdd35ce" xlink:href="ppl-20210331.xsd#ppl_OtherIncomeExpenseNetLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock_74262b3f-730c-45a4-94e3-8c00ab309ce3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherIncomeExpenseNetLineItems_cd2a9ea7-fa6b-4b4c-a741-583adcdd35ce" xlink:to="loc_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock_74262b3f-730c-45a4-94e3-8c00ab309ce3" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisclosureTable_d0509fce-d095-4492-85cb-70a6f3f78362" xlink:href="ppl-20210331.xsd#ppl_DisclosureTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_OtherIncomeExpenseNetLineItems_cd2a9ea7-fa6b-4b4c-a741-583adcdd35ce" xlink:to="loc_ppl_DisclosureTable_d0509fce-d095-4492-85cb-70a6f3f78362" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_619a0161-5840-48f9-b10c-f92d4952f59d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DisclosureTable_d0509fce-d095-4492-85cb-70a6f3f78362" xlink:to="loc_dei_LegalEntityAxis_619a0161-5840-48f9-b10c-f92d4952f59d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_619a0161-5840-48f9-b10c-f92d4952f59d_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_619a0161-5840-48f9-b10c-f92d4952f59d" xlink:to="loc_dei_EntityDomain_619a0161-5840-48f9-b10c-f92d4952f59d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_23cb1021-1330-4399-a8eb-048fc953dab7" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_619a0161-5840-48f9-b10c-f92d4952f59d" xlink:to="loc_dei_EntityDomain_23cb1021-1330-4399-a8eb-048fc953dab7" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_29185555-ecbb-49de-9702-2cb7bd1f8d0e" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_23cb1021-1330-4399-a8eb-048fc953dab7" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_29185555-ecbb-49de-9702-2cb7bd1f8d0e" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/OtherIncomeExpensenetDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#OtherIncomeExpensenetDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/OtherIncomeExpensenetDetails" xlink:type="extended" id="id2799ef9482f408ea867b716828fea44_OtherIncomeExpensenetDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherIncomeExpenseNetLineItems_e7a6b780-29b5-43d5-ada1-0fa48f9a58d9" xlink:href="ppl-20210331.xsd#ppl_OtherIncomeExpenseNetLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncomeDisclosureNonoperatingAbstract_7e5f5614-f2a2-45a5-bdb6-a79a73e80202" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherIncomeDisclosureNonoperatingAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherIncomeExpenseNetLineItems_e7a6b780-29b5-43d5-ada1-0fa48f9a58d9" xlink:to="loc_us-gaap_OtherIncomeDisclosureNonoperatingAbstract_7e5f5614-f2a2-45a5-bdb6-a79a73e80202" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossFromPriceRiskManagementActivity_a5cfb15e-e9da-4d84-85b5-2d2e7846325a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossFromPriceRiskManagementActivity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeDisclosureNonoperatingAbstract_7e5f5614-f2a2-45a5-bdb6-a79a73e80202" xlink:to="loc_us-gaap_GainLossFromPriceRiskManagementActivity_a5cfb15e-e9da-4d84-85b5-2d2e7846325a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DefinedBenefitPlanNetPeriodicBenefitCostCreditNonService_ead3c6db-f513-4122-a5c2-3171e5d1e41d" xlink:href="ppl-20210331.xsd#ppl_DefinedBenefitPlanNetPeriodicBenefitCostCreditNonService"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeDisclosureNonoperatingAbstract_7e5f5614-f2a2-45a5-bdb6-a79a73e80202" xlink:to="loc_ppl_DefinedBenefitPlanNetPeriodicBenefitCostCreditNonService_ead3c6db-f513-4122-a5c2-3171e5d1e41d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOther_7960c02a-ce87-44ce-8f97-9b3eb6386720" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeOther"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeDisclosureNonoperatingAbstract_7e5f5614-f2a2-45a5-bdb6-a79a73e80202" xlink:to="loc_us-gaap_InterestIncomeOther_7960c02a-ce87-44ce-8f97-9b3eb6386720" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_6de07c64-cb0e-4e13-bbe9-834fc90a7094" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeDisclosureNonoperatingAbstract_7e5f5614-f2a2-45a5-bdb6-a79a73e80202" xlink:to="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_6de07c64-cb0e-4e13-bbe9-834fc90a7094" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherNonoperatingIncomeMiscellaneous_b01b7ade-e87f-4d4e-af12-e7b1f608bf0b" xlink:href="ppl-20210331.xsd#ppl_OtherNonoperatingIncomeMiscellaneous"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeDisclosureNonoperatingAbstract_7e5f5614-f2a2-45a5-bdb6-a79a73e80202" xlink:to="loc_ppl_OtherNonoperatingIncomeMiscellaneous_b01b7ade-e87f-4d4e-af12-e7b1f608bf0b" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncome_b9d1a3e7-0701-4a0e-b7ba-41ccdcc3881a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncome"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeDisclosureNonoperatingAbstract_7e5f5614-f2a2-45a5-bdb6-a79a73e80202" xlink:to="loc_us-gaap_OtherNonoperatingIncome_b9d1a3e7-0701-4a0e-b7ba-41ccdcc3881a" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherExpenseDisclosureNonoperatingAbstract_734b4661-49be-4dc3-abdc-ccd6f4c047a1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherExpenseDisclosureNonoperatingAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherIncomeExpenseNetLineItems_e7a6b780-29b5-43d5-ada1-0fa48f9a58d9" xlink:to="loc_us-gaap_OtherExpenseDisclosureNonoperatingAbstract_734b4661-49be-4dc3-abdc-ccd6f4c047a1" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CharitableContributions_8ba94b09-9be7-46d9-9eaf-7865ebdbe034" xlink:href="ppl-20210331.xsd#ppl_CharitableContributions"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherExpenseDisclosureNonoperatingAbstract_734b4661-49be-4dc3-abdc-ccd6f4c047a1" xlink:to="loc_ppl_CharitableContributions_8ba94b09-9be7-46d9-9eaf-7865ebdbe034" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherNonoperatingExpenseMiscellaneous_e15c2039-740d-43a7-8972-46744ec7ec1d" xlink:href="ppl-20210331.xsd#ppl_OtherNonoperatingExpenseMiscellaneous"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherExpenseDisclosureNonoperatingAbstract_734b4661-49be-4dc3-abdc-ccd6f4c047a1" xlink:to="loc_ppl_OtherNonoperatingExpenseMiscellaneous_e15c2039-740d-43a7-8972-46744ec7ec1d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingExpense_8e182805-5049-46bb-b32d-ca9b8b38e35b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherExpenseDisclosureNonoperatingAbstract_734b4661-49be-4dc3-abdc-ccd6f4c047a1" xlink:to="loc_us-gaap_OtherNonoperatingExpense_8e182805-5049-46bb-b32d-ca9b8b38e35b" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_f302b90f-5c52-4d15-bc3e-b00ab3544cc4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OtherIncomeExpenseNetLineItems_e7a6b780-29b5-43d5-ada1-0fa48f9a58d9" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_f302b90f-5c52-4d15-bc3e-b00ab3544cc4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherNonoperatingIncomeExpenseTable_9da68878-72df-48d5-95b4-8620d4c4f512" xlink:href="ppl-20210331.xsd#ppl_OtherNonoperatingIncomeExpenseTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_OtherIncomeExpenseNetLineItems_e7a6b780-29b5-43d5-ada1-0fa48f9a58d9" xlink:to="loc_ppl_OtherNonoperatingIncomeExpenseTable_9da68878-72df-48d5-95b4-8620d4c4f512" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_457cb76b-cc06-44e1-98b5-575b9dd56c6f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_OtherNonoperatingIncomeExpenseTable_9da68878-72df-48d5-95b4-8620d4c4f512" xlink:to="loc_dei_LegalEntityAxis_457cb76b-cc06-44e1-98b5-575b9dd56c6f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_457cb76b-cc06-44e1-98b5-575b9dd56c6f_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_457cb76b-cc06-44e1-98b5-575b9dd56c6f" xlink:to="loc_dei_EntityDomain_457cb76b-cc06-44e1-98b5-575b9dd56c6f_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_030d51d3-5a87-43b8-8b61-eb10b0adfaeb" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_457cb76b-cc06-44e1-98b5-575b9dd56c6f" xlink:to="loc_dei_EntityDomain_030d51d3-5a87-43b8-8b61-eb10b0adfaeb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_581dd0b0-8863-4337-acef-eb36bfa132f3" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_030d51d3-5a87-43b8-8b61-eb10b0adfaeb" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_581dd0b0-8863-4337-acef-eb36bfa132f3" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/FairValueMeasurements" xlink:type="simple" xlink:href="ppl-20210331.xsd#FairValueMeasurements"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FairValueMeasurements" xlink:type="extended" id="ibe79bff5c6bf4d3599547e648c106f80_FairValueMeasurements"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/FairValueMeasurementsPolicies" xlink:type="simple" xlink:href="ppl-20210331.xsd#FairValueMeasurementsPolicies"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FairValueMeasurementsPolicies" xlink:type="extended" id="ic7f7dacbb9994e6f936080dea17d5828_FairValueMeasurementsPolicies"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/FairValueMeasurementsTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#FairValueMeasurementsTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FairValueMeasurementsTables" xlink:type="extended" id="idaf0bae689df46f5b3458abaeb1c4ab0_FairValueMeasurementsTables"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/FairValueMeasurementsAssetsandLiabilitiesMeasuredonRecurringBasisTableDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#FairValueMeasurementsAssetsandLiabilitiesMeasuredonRecurringBasisTableDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FairValueMeasurementsAssetsandLiabilitiesMeasuredonRecurringBasisTableDetails" xlink:type="extended" id="i44f6d25f8c4447b19b85e52be7d0bb6c_FairValueMeasurementsAssetsandLiabilitiesMeasuredonRecurringBasisTableDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_a232870b-7717-4d1c-a15d-498fb3815376" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_20cd9edc-19ff-47b9-877e-9a722dcc4a5d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_a232870b-7717-4d1c-a15d-498fb3815376" xlink:to="loc_us-gaap_AssetsAbstract_20cd9edc-19ff-47b9-877e-9a722dcc4a5d" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_779ea53e-f275-477a-a9eb-e9cb5a7254a9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_20cd9edc-19ff-47b9-877e-9a722dcc4a5d" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_779ea53e-f275-477a-a9eb-e9cb5a7254a9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsFairValueDisclosure_d4454242-6d0b-41a8-ae51-4ee482383f08" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsFairValueDisclosure"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_20cd9edc-19ff-47b9-877e-9a722dcc4a5d" xlink:to="loc_us-gaap_OtherAssetsFairValueDisclosure_d4454242-6d0b-41a8-ae51-4ee482383f08" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_FairValueAssetsMeasuredOnRecurringBasisRestrictedCashAndCashEquivalents_6f7f735d-f741-47e3-bafc-74b9ea9422dc" xlink:href="ppl-20210331.xsd#ppl_FairValueAssetsMeasuredOnRecurringBasisRestrictedCashAndCashEquivalents"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_20cd9edc-19ff-47b9-877e-9a722dcc4a5d" xlink:to="loc_ppl_FairValueAssetsMeasuredOnRecurringBasisRestrictedCashAndCashEquivalents_6f7f735d-f741-47e3-bafc-74b9ea9422dc" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_SpecialUseFundsAbstract_ed029906-bbf3-4aa5-9db5-7833483d21ac" xlink:href="ppl-20210331.xsd#ppl_SpecialUseFundsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_20cd9edc-19ff-47b9-877e-9a722dcc4a5d" xlink:to="loc_ppl_SpecialUseFundsAbstract_ed029906-bbf3-4aa5-9db5-7833483d21ac" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_FairValueAssetMeasuredOnRecurringBasisLimitedToUseMoneyMarket_1abb7e80-883c-434e-8481-201fd5369b5a" xlink:href="ppl-20210331.xsd#ppl_FairValueAssetMeasuredOnRecurringBasisLimitedToUseMoneyMarket"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_SpecialUseFundsAbstract_ed029906-bbf3-4aa5-9db5-7833483d21ac" xlink:to="loc_ppl_FairValueAssetMeasuredOnRecurringBasisLimitedToUseMoneyMarket_1abb7e80-883c-434e-8481-201fd5369b5a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_FairValueAssetsMeasuredUsingNetAssetValueLimitedToUseCommingledDebtFund_9ed0a02b-89ab-4907-bbea-d3ebe7d5c7be" xlink:href="ppl-20210331.xsd#ppl_FairValueAssetsMeasuredUsingNetAssetValueLimitedToUseCommingledDebtFund"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_SpecialUseFundsAbstract_ed029906-bbf3-4aa5-9db5-7833483d21ac" xlink:to="loc_ppl_FairValueAssetsMeasuredUsingNetAssetValueLimitedToUseCommingledDebtFund_9ed0a02b-89ab-4907-bbea-d3ebe7d5c7be" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_FairValueAssetsMeasuredUsingNetAssetValueLimitedToUseCommingledEquityFund_aefa726e-b22d-4ae4-86be-cae916dd1483" xlink:href="ppl-20210331.xsd#ppl_FairValueAssetsMeasuredUsingNetAssetValueLimitedToUseCommingledEquityFund"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_SpecialUseFundsAbstract_ed029906-bbf3-4aa5-9db5-7833483d21ac" xlink:to="loc_ppl_FairValueAssetsMeasuredUsingNetAssetValueLimitedToUseCommingledEquityFund_aefa726e-b22d-4ae4-86be-cae916dd1483" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_HealthCareTrustFundAssetsLimitedToUse_cb4150f3-a72c-4920-903a-c1dc1110da55" xlink:href="ppl-20210331.xsd#ppl_HealthCareTrustFundAssetsLimitedToUse"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_SpecialUseFundsAbstract_ed029906-bbf3-4aa5-9db5-7833483d21ac" xlink:to="loc_ppl_HealthCareTrustFundAssetsLimitedToUse_cb4150f3-a72c-4920-903a-c1dc1110da55" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PriceRiskManagementAssetsAbstract_1055fee5-1feb-4da4-b5de-14abba7cf76a" xlink:href="ppl-20210331.xsd#ppl_PriceRiskManagementAssetsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_20cd9edc-19ff-47b9-877e-9a722dcc4a5d" xlink:to="loc_ppl_PriceRiskManagementAssetsAbstract_1055fee5-1feb-4da4-b5de-14abba7cf76a" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_0c0a5d18-ed7c-4bfa-a3c2-c89e93e25bd3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsFairValueDisclosure"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_20cd9edc-19ff-47b9-877e-9a722dcc4a5d" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_0c0a5d18-ed7c-4bfa-a3c2-c89e93e25bd3" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAbstract_b1035a61-ef52-4dc4-9795-94f86cadf611" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_a232870b-7717-4d1c-a15d-498fb3815376" xlink:to="loc_us-gaap_LiabilitiesAbstract_b1035a61-ef52-4dc4-9795-94f86cadf611" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LiabilitiesPriceRiskManagementLiabilitiesAbstract_e75562b8-cdc0-4f9c-8a6b-985a3d36828a" xlink:href="ppl-20210331.xsd#ppl_LiabilitiesPriceRiskManagementLiabilitiesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_b1035a61-ef52-4dc4-9795-94f86cadf611" xlink:to="loc_ppl_LiabilitiesPriceRiskManagementLiabilitiesAbstract_e75562b8-cdc0-4f9c-8a6b-985a3d36828a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateDerivativeLiabilitiesAtFairValue_8d6b07f3-b513-45e8-b171-5c50230a7859" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestRateDerivativeLiabilitiesAtFairValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LiabilitiesPriceRiskManagementLiabilitiesAbstract_e75562b8-cdc0-4f9c-8a6b-985a3d36828a" xlink:to="loc_us-gaap_InterestRateDerivativeLiabilitiesAtFairValue_8d6b07f3-b513-45e8-b171-5c50230a7859" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_dfc89a22-4762-44b6-86c4-3d47d0b46e16" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_LiabilitiesPriceRiskManagementLiabilitiesAbstract_e75562b8-cdc0-4f9c-8a6b-985a3d36828a" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_dfc89a22-4762-44b6-86c4-3d47d0b46e16" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_b12ee2b4-4244-4a00-b9f0-d61bdc293fea" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_a232870b-7717-4d1c-a15d-498fb3815376" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_b12ee2b4-4244-4a00-b9f0-d61bdc293fea" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_645624e0-718c-4336-83fd-b1f4b24b227c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_b12ee2b4-4244-4a00-b9f0-d61bdc293fea" xlink:to="loc_dei_LegalEntityAxis_645624e0-718c-4336-83fd-b1f4b24b227c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_645624e0-718c-4336-83fd-b1f4b24b227c_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_645624e0-718c-4336-83fd-b1f4b24b227c" xlink:to="loc_dei_EntityDomain_645624e0-718c-4336-83fd-b1f4b24b227c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_5b83673a-f5d3-488c-84e9-41571470c93b" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_645624e0-718c-4336-83fd-b1f4b24b227c" xlink:to="loc_dei_EntityDomain_5b83673a-f5d3-488c-84e9-41571470c93b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_3b922e5a-afc8-4a89-8212-4724350c33db" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5b83673a-f5d3-488c-84e9-41571470c93b" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_3b922e5a-afc8-4a89-8212-4724350c33db" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_5de0729c-601d-4167-bb81-29bc4aec263f" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5b83673a-f5d3-488c-84e9-41571470c93b" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_5de0729c-601d-4167-bb81-29bc4aec263f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_b2c312d6-16b5-4d8e-ad9e-5640bb40ca93" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5b83673a-f5d3-488c-84e9-41571470c93b" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_b2c312d6-16b5-4d8e-ad9e-5640bb40ca93" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_348d6021-bafa-4bd0-bab4-2f9df238cc33" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5b83673a-f5d3-488c-84e9-41571470c93b" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_348d6021-bafa-4bd0-bab4-2f9df238cc33" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_ba71fe16-90e8-4c95-a288-edc9ae1bb0c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_b12ee2b4-4244-4a00-b9f0-d61bdc293fea" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_ba71fe16-90e8-4c95-a288-edc9ae1bb0c9" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_ba71fe16-90e8-4c95-a288-edc9ae1bb0c9_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_ba71fe16-90e8-4c95-a288-edc9ae1bb0c9" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_ba71fe16-90e8-4c95-a288-edc9ae1bb0c9_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_45f01d8c-4fa0-421f-9fcb-43a50028a3f6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_ba71fe16-90e8-4c95-a288-edc9ae1bb0c9" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_45f01d8c-4fa0-421f-9fcb-43a50028a3f6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_80a980ff-093c-4868-a063-52268719f5b9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_45f01d8c-4fa0-421f-9fcb-43a50028a3f6" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_80a980ff-093c-4868-a063-52268719f5b9" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_d536d47d-da92-4600-8580-788797d507f7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_b12ee2b4-4244-4a00-b9f0-d61bdc293fea" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_d536d47d-da92-4600-8580-788797d507f7" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d536d47d-da92-4600-8580-788797d507f7_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_d536d47d-da92-4600-8580-788797d507f7" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d536d47d-da92-4600-8580-788797d507f7_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_ca296e06-a958-43c1-a5f8-c800e419818b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_d536d47d-da92-4600-8580-788797d507f7" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_ca296e06-a958-43c1-a5f8-c800e419818b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_f32bcc20-ff6d-4381-b7dd-8ee28882f7d2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueInputsLevel1Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_ca296e06-a958-43c1-a5f8-c800e419818b" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_f32bcc20-ff6d-4381-b7dd-8ee28882f7d2" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_d206201b-171d-4dc3-88cb-811c281f18ab" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueInputsLevel2Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_ca296e06-a958-43c1-a5f8-c800e419818b" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_d206201b-171d-4dc3-88cb-811c281f18ab" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_8d50f99f-2303-4643-954e-dbd565189819" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueInputsLevel3Member"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_ca296e06-a958-43c1-a5f8-c800e419818b" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_8d50f99f-2303-4643-954e-dbd565189819" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/FairValueMeasurementsFinancialInstrumentsNotRecordedatFairValueDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#FairValueMeasurementsFinancialInstrumentsNotRecordedatFairValueDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/FairValueMeasurementsFinancialInstrumentsNotRecordedatFairValueDetails" xlink:type="extended" id="i51da89b06d5e4d3d8020a2767d3dd498_FairValueMeasurementsFinancialInstrumentsNotRecordedatFairValueDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_2e069c66-599b-4d2b-aea4-5e55c7a5ad30" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValue_2cb140e7-3d2a-42e4-acaa-dd25b54daabb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFairValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_2e069c66-599b-4d2b-aea4-5e55c7a5ad30" xlink:to="loc_us-gaap_DebtInstrumentFairValue_2cb140e7-3d2a-42e4-acaa-dd25b54daabb" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_a356e52b-46d8-48b8-9001-6abd3ea13ba1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_2e069c66-599b-4d2b-aea4-5e55c7a5ad30" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_a356e52b-46d8-48b8-9001-6abd3ea13ba1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_200d321f-b6eb-4e38-856d-929d80c665fd" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_a356e52b-46d8-48b8-9001-6abd3ea13ba1" xlink:to="loc_dei_LegalEntityAxis_200d321f-b6eb-4e38-856d-929d80c665fd" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_200d321f-b6eb-4e38-856d-929d80c665fd_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_200d321f-b6eb-4e38-856d-929d80c665fd" xlink:to="loc_dei_EntityDomain_200d321f-b6eb-4e38-856d-929d80c665fd_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_1c19ff90-11be-4950-b1e2-ff4309e1a9a2" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_200d321f-b6eb-4e38-856d-929d80c665fd" xlink:to="loc_dei_EntityDomain_1c19ff90-11be-4950-b1e2-ff4309e1a9a2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_e752ecde-d764-44bb-ab42-0763199d5165" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_1c19ff90-11be-4950-b1e2-ff4309e1a9a2" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_e752ecde-d764-44bb-ab42-0763199d5165" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_be7d950d-dbcf-4fd8-b4a3-e4e3a8a1097b" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_1c19ff90-11be-4950-b1e2-ff4309e1a9a2" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_be7d950d-dbcf-4fd8-b4a3-e4e3a8a1097b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_3c4e838d-b6b7-434a-9250-e3695a7dd553" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_1c19ff90-11be-4950-b1e2-ff4309e1a9a2" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_3c4e838d-b6b7-434a-9250-e3695a7dd553" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_0030e9e0-58dc-4d06-bc22-990506603517" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_1c19ff90-11be-4950-b1e2-ff4309e1a9a2" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_0030e9e0-58dc-4d06-bc22-990506603517" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_c6f65658-b9a0-4223-94e8-b6ab811d042d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_a356e52b-46d8-48b8-9001-6abd3ea13ba1" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_c6f65658-b9a0-4223-94e8-b6ab811d042d" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_c6f65658-b9a0-4223-94e8-b6ab811d042d_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_c6f65658-b9a0-4223-94e8-b6ab811d042d" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_c6f65658-b9a0-4223-94e8-b6ab811d042d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_f603fcb9-0cf0-47db-a815-9f28190fb1af" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_c6f65658-b9a0-4223-94e8-b6ab811d042d" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_f603fcb9-0cf0-47db-a815-9f28190fb1af" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_7dd33803-d7f9-4ab3-8a80-2a894e90ebfa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_f603fcb9-0cf0-47db-a815-9f28190fb1af" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_7dd33803-d7f9-4ab3-8a80-2a894e90ebfa" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_328b4e61-6140-4575-b934-cc66a638b379" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_f603fcb9-0cf0-47db-a815-9f28190fb1af" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_328b4e61-6140-4575-b934-cc66a638b379" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_cf5e9e75-0505-4f2c-8ed5-53ef24215e71" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_f603fcb9-0cf0-47db-a815-9f28190fb1af" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_cf5e9e75-0505-4f2c-8ed5-53ef24215e71" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivities" xlink:type="simple" xlink:href="ppl-20210331.xsd#DerivativeInstrumentsandHedgingActivities"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivities" xlink:type="extended" id="id128d91eb649447cad640b768fa6edba_DerivativeInstrumentsandHedgingActivities"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesPolicies" xlink:type="simple" xlink:href="ppl-20210331.xsd#DerivativeInstrumentsandHedgingActivitiesPolicies"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesPolicies" xlink:type="extended" id="if9390ca2a57c4a7686f56b9a74eb5402_DerivativeInstrumentsandHedgingActivitiesPolicies"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#DerivativeInstrumentsandHedgingActivitiesTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesTables" xlink:type="extended" id="ib7d62212b1a64a4d848615d1999c165e_DerivativeInstrumentsandHedgingActivitiesTables">
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeInstrumentsAndHedgingActivitiesLineItems_51732c8a-835e-4e1b-a266-2d511a0d4b58" xlink:href="ppl-20210331.xsd#ppl_DerivativeInstrumentsAndHedgingActivitiesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock_6cd37541-5c8b-423f-8865-db11429b485a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DerivativeInstrumentsAndHedgingActivitiesLineItems_51732c8a-835e-4e1b-a266-2d511a0d4b58" xlink:to="loc_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock_6cd37541-5c8b-423f-8865-db11429b485a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_9a655193-5a31-4592-a7de-c00f61c9c89a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DerivativeInstrumentsAndHedgingActivitiesLineItems_51732c8a-835e-4e1b-a266-2d511a0d4b58" xlink:to="loc_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_9a655193-5a31-4592-a7de-c00f61c9c89a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OffsettingAssetsAndLiabilitiesTableTextBlock_325f894a-0ea2-4191-ac47-a4a769337c93" xlink:href="ppl-20210331.xsd#ppl_OffsettingAssetsAndLiabilitiesTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DerivativeInstrumentsAndHedgingActivitiesLineItems_51732c8a-835e-4e1b-a266-2d511a0d4b58" xlink:to="loc_ppl_OffsettingAssetsAndLiabilitiesTableTextBlock_325f894a-0ea2-4191-ac47-a4a769337c93" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CreditRiskRelatedContingentFeaturesTableTextBlock_76871fb4-5199-4c75-990f-a61f8f1030e0" xlink:href="ppl-20210331.xsd#ppl_CreditRiskRelatedContingentFeaturesTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DerivativeInstrumentsAndHedgingActivitiesLineItems_51732c8a-835e-4e1b-a266-2d511a0d4b58" xlink:to="loc_ppl_CreditRiskRelatedContingentFeaturesTableTextBlock_76871fb4-5199-4c75-990f-a61f8f1030e0" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisclosureTable_23bc1ff3-b77a-4062-bdc0-64d65e60a589" xlink:href="ppl-20210331.xsd#ppl_DisclosureTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_DerivativeInstrumentsAndHedgingActivitiesLineItems_51732c8a-835e-4e1b-a266-2d511a0d4b58" xlink:to="loc_ppl_DisclosureTable_23bc1ff3-b77a-4062-bdc0-64d65e60a589" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_6e2435f0-b543-4f92-9392-453cbb871cfb" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DisclosureTable_23bc1ff3-b77a-4062-bdc0-64d65e60a589" xlink:to="loc_dei_LegalEntityAxis_6e2435f0-b543-4f92-9392-453cbb871cfb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_6e2435f0-b543-4f92-9392-453cbb871cfb_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_6e2435f0-b543-4f92-9392-453cbb871cfb" xlink:to="loc_dei_EntityDomain_6e2435f0-b543-4f92-9392-453cbb871cfb_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_5e85d9ea-bfd5-495e-afd0-06fc4f161200" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_6e2435f0-b543-4f92-9392-453cbb871cfb" xlink:to="loc_dei_EntityDomain_5e85d9ea-bfd5-495e-afd0-06fc4f161200" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_cf2a4619-56ec-41a3-9bcb-f1cb2af4e4b9" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5e85d9ea-bfd5-495e-afd0-06fc4f161200" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_cf2a4619-56ec-41a3-9bcb-f1cb2af4e4b9" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_b202c8b0-6b53-4dd6-a263-74e954965d1b" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5e85d9ea-bfd5-495e-afd0-06fc4f161200" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_b202c8b0-6b53-4dd6-a263-74e954965d1b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_c7b0f37e-e1d4-4163-aa4e-50bdb8546c52" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_5e85d9ea-bfd5-495e-afd0-06fc4f161200" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_c7b0f37e-e1d4-4163-aa4e-50bdb8546c52" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesIntroDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#DerivativeInstrumentsandHedgingActivitiesIntroDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesIntroDetails" xlink:type="extended" id="i8510ffd0a2274cd0b0b4193b7c884445_DerivativeInstrumentsandHedgingActivitiesIntroDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_MasterNettingArrangementsNumericLineItems_f9ea0b3c-c717-47d2-9c2c-41a685da41da" xlink:href="ppl-20210331.xsd#ppl_MasterNettingArrangementsNumericLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeCollateralObligationToReturnCash_5e918b71-6874-41b6-94ac-86841ce14ee3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeCollateralObligationToReturnCash"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_MasterNettingArrangementsNumericLineItems_f9ea0b3c-c717-47d2-9c2c-41a685da41da" xlink:to="loc_us-gaap_DerivativeCollateralObligationToReturnCash_5e918b71-6874-41b6-94ac-86841ce14ee3" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeCollateralRightToReclaimCash_cfd9ba12-32b2-46cc-9db2-2d8fd6b8694f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeCollateralRightToReclaimCash"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_MasterNettingArrangementsNumericLineItems_f9ea0b3c-c717-47d2-9c2c-41a685da41da" xlink:to="loc_us-gaap_DerivativeCollateralRightToReclaimCash_cfd9ba12-32b2-46cc-9db2-2d8fd6b8694f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_MasterNettingArrangementsTable_8d8e4a52-38a0-4678-ac18-15102c594cac" xlink:href="ppl-20210331.xsd#ppl_MasterNettingArrangementsTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_MasterNettingArrangementsNumericLineItems_f9ea0b3c-c717-47d2-9c2c-41a685da41da" xlink:to="loc_ppl_MasterNettingArrangementsTable_8d8e4a52-38a0-4678-ac18-15102c594cac" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_0444c7f9-444f-4982-afb9-9ac4ad46d2ef" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_MasterNettingArrangementsTable_8d8e4a52-38a0-4678-ac18-15102c594cac" xlink:to="loc_dei_LegalEntityAxis_0444c7f9-444f-4982-afb9-9ac4ad46d2ef" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_0444c7f9-444f-4982-afb9-9ac4ad46d2ef_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_0444c7f9-444f-4982-afb9-9ac4ad46d2ef" xlink:to="loc_dei_EntityDomain_0444c7f9-444f-4982-afb9-9ac4ad46d2ef_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_81162398-999a-4840-b2c3-215e61bc75a9" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_0444c7f9-444f-4982-afb9-9ac4ad46d2ef" xlink:to="loc_dei_EntityDomain_81162398-999a-4840-b2c3-215e61bc75a9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_1491ad29-2492-46ee-9228-d77ce1e7e79c" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_81162398-999a-4840-b2c3-215e61bc75a9" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_1491ad29-2492-46ee-9228-d77ce1e7e79c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_672a752f-ad78-489c-9f21-697705a9b8a9" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_81162398-999a-4840-b2c3-215e61bc75a9" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_672a752f-ad78-489c-9f21-697705a9b8a9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_f23ac5fa-6023-4a9f-9322-29f6fea0d972" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_81162398-999a-4840-b2c3-215e61bc75a9" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_f23ac5fa-6023-4a9f-9322-29f6fea0d972" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesRiskDisclosuresDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#DerivativeInstrumentsandHedgingActivitiesRiskDisclosuresDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesRiskDisclosuresDetails" xlink:type="extended" id="iafc044b33fab4c7daff4c43467d0dcc8_DerivativeInstrumentsandHedgingActivitiesRiskDisclosuresDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_InterestRateRiskAndForeignCurrencyRiskLineItems_6ff21a09-f15f-41d4-bdd0-580a60636db6" xlink:href="ppl-20210331.xsd#ppl_InterestRateRiskAndForeignCurrencyRiskLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_InterestRateRiskCashFlowHedgesNumericAbstract_163603f9-b80e-4ff2-b406-929d67f65aed" xlink:href="ppl-20210331.xsd#ppl_InterestRateRiskCashFlowHedgesNumericAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskLineItems_6ff21a09-f15f-41d4-bdd0-580a60636db6" xlink:to="loc_ppl_InterestRateRiskCashFlowHedgesNumericAbstract_163603f9-b80e-4ff2-b406-929d67f65aed" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDiscontinuationOfInterestRateCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet_cbc8daad-f494-428a-b789-9d8d38ac3bef" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnDiscontinuationOfInterestRateCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_InterestRateRiskCashFlowHedgesNumericAbstract_163603f9-b80e-4ff2-b406-929d67f65aed" xlink:to="loc_us-gaap_GainLossOnDiscontinuationOfInterestRateCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet_cbc8daad-f494-428a-b789-9d8d38ac3bef" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_8f61164b-f8ec-405b-afe6-44535bd59080" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeNotionalAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_InterestRateRiskCashFlowHedgesNumericAbstract_163603f9-b80e-4ff2-b406-929d67f65aed" xlink:to="loc_us-gaap_DerivativeNotionalAmount_8f61164b-f8ec-405b-afe6-44535bd59080" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SummaryOfNetInvestmentHedgeActivityAbstract_f6ddd5c8-6bc5-42e0-aed0-2adebc13a2d8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SummaryOfNetInvestmentHedgeActivityAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskLineItems_6ff21a09-f15f-41d4-bdd0-580a60636db6" xlink:to="loc_us-gaap_SummaryOfNetInvestmentHedgeActivityAbstract_f6ddd5c8-6bc5-42e0-aed0-2adebc13a2d8" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TranslationAdjustmentForNetInvestmentHedgeIncreaseDecreaseNetOfTax_08ee5377-e481-4c35-be67-d98a48d8e93c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TranslationAdjustmentForNetInvestmentHedgeIncreaseDecreaseNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SummaryOfNetInvestmentHedgeActivityAbstract_f6ddd5c8-6bc5-42e0-aed0-2adebc13a2d8" xlink:to="loc_us-gaap_TranslationAdjustmentForNetInvestmentHedgeIncreaseDecreaseNetOfTax_08ee5377-e481-4c35-be67-d98a48d8e93c" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract_36d32a75-6826-41c1-9e50-20b6d0e6cffb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskLineItems_6ff21a09-f15f-41d4-bdd0-580a60636db6" xlink:to="loc_us-gaap_ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract_36d32a75-6826-41c1-9e50-20b6d0e6cffb" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_TotalExposureHedgedForeignCurrencyContractsClassifiedAsEconomicActivity_d03290d0-9a52-4b9b-b641-0c7b73d2e627" xlink:href="ppl-20210331.xsd#ppl_TotalExposureHedgedForeignCurrencyContractsClassifiedAsEconomicActivity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract_36d32a75-6826-41c1-9e50-20b6d0e6cffb" xlink:to="loc_ppl_TotalExposureHedgedForeignCurrencyContractsClassifiedAsEconomicActivity_d03290d0-9a52-4b9b-b641-0c7b73d2e627" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeNotionalAmountMatured_1a36f4c4-59fd-49f1-b830-e027816d9ff7" xlink:href="ppl-20210331.xsd#ppl_DerivativeNotionalAmountMatured"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskLineItems_6ff21a09-f15f-41d4-bdd0-580a60636db6" xlink:to="loc_ppl_DerivativeNotionalAmountMatured_1a36f4c4-59fd-49f1-b830-e027816d9ff7" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_76eb5c0d-9444-49e8-9842-c5c4561b567d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskLineItems_6ff21a09-f15f-41d4-bdd0-580a60636db6" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_76eb5c0d-9444-49e8-9842-c5c4561b567d" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_InterestRateRiskAndForeignCurrencyRiskTable_c5829a2b-e2aa-4618-aeea-c7711e7e77b0" xlink:href="ppl-20210331.xsd#ppl_InterestRateRiskAndForeignCurrencyRiskTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskLineItems_6ff21a09-f15f-41d4-bdd0-580a60636db6" xlink:to="loc_ppl_InterestRateRiskAndForeignCurrencyRiskTable_c5829a2b-e2aa-4618-aeea-c7711e7e77b0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_3d269388-e2f3-4d3f-8c54-eab8497aca4f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskTable_c5829a2b-e2aa-4618-aeea-c7711e7e77b0" xlink:to="loc_dei_LegalEntityAxis_3d269388-e2f3-4d3f-8c54-eab8497aca4f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_3d269388-e2f3-4d3f-8c54-eab8497aca4f_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_3d269388-e2f3-4d3f-8c54-eab8497aca4f" xlink:to="loc_dei_EntityDomain_3d269388-e2f3-4d3f-8c54-eab8497aca4f_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_530d3dba-20df-44bc-bcfa-042452fc2204" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_3d269388-e2f3-4d3f-8c54-eab8497aca4f" xlink:to="loc_dei_EntityDomain_530d3dba-20df-44bc-bcfa-042452fc2204" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_9786675b-0e54-4b2f-befb-07602efbb157" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_530d3dba-20df-44bc-bcfa-042452fc2204" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_9786675b-0e54-4b2f-befb-07602efbb157" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_9440323c-c122-40e9-ac13-3deaa2bdd4da" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_530d3dba-20df-44bc-bcfa-042452fc2204" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_9440323c-c122-40e9-ac13-3deaa2bdd4da" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_0854b1fe-6b51-4ca2-8e22-26b1d86fdcca" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_b890f591-9d74-4cb4-95b1-d461ab385ebd" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_ab69051f-4693-4046-bfce-aff8b20b05e0" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_530d3dba-20df-44bc-bcfa-042452fc2204" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_ab69051f-4693-4046-bfce-aff8b20b05e0" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_f725da72-d197-40ff-86e6-5507966ab904" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_530d3dba-20df-44bc-bcfa-042452fc2204" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_f725da72-d197-40ff-86e6-5507966ab904" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyAxis_fa07c12e-8f54-4708-b5b1-903f03e45730" xlink:href="ppl-20210331.xsd#ppl_ByCompanyAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskTable_c5829a2b-e2aa-4618-aeea-c7711e7e77b0" xlink:to="loc_ppl_ByCompanyAxis_fa07c12e-8f54-4708-b5b1-903f03e45730" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_fa07c12e-8f54-4708-b5b1-903f03e45730_default" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_ByCompanyAxis_fa07c12e-8f54-4708-b5b1-903f03e45730" xlink:to="loc_ppl_ByCompanyDomain_fa07c12e-8f54-4708-b5b1-903f03e45730_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_ByCompanyDomain_b8674375-f57e-42fc-9eaf-87a8051e0714" xlink:href="ppl-20210331.xsd#ppl_ByCompanyDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_ByCompanyAxis_fa07c12e-8f54-4708-b5b1-903f03e45730" xlink:to="loc_ppl_ByCompanyDomain_b8674375-f57e-42fc-9eaf-87a8051e0714" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_f57f758c-1871-4a65-a823-71e8cf65a71b" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_ByCompanyDomain_b8674375-f57e-42fc-9eaf-87a8051e0714" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_f57f758c-1871-4a65-a823-71e8cf65a71b" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_97dba510-0327-4863-bdf1-eaed37aa40c1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskTable_c5829a2b-e2aa-4618-aeea-c7711e7e77b0" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_97dba510-0327-4863-bdf1-eaed37aa40c1" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_97dba510-0327-4863-bdf1-eaed37aa40c1_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingRelationshipDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_97dba510-0327-4863-bdf1-eaed37aa40c1" xlink:to="loc_us-gaap_HedgingRelationshipDomain_97dba510-0327-4863-bdf1-eaed37aa40c1_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_9ae7c8a1-6568-4ab4-a6e5-3a7cb069a432" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingRelationshipDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_97dba510-0327-4863-bdf1-eaed37aa40c1" xlink:to="loc_us-gaap_HedgingRelationshipDomain_9ae7c8a1-6568-4ab4-a6e5-3a7cb069a432" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_031a36eb-6ed3-4ed0-befc-9dc835cf307d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashFlowHedgingMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_9ae7c8a1-6568-4ab4-a6e5-3a7cb069a432" xlink:to="loc_us-gaap_CashFlowHedgingMember_031a36eb-6ed3-4ed0-befc-9dc835cf307d" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentHedgingMember_770dacc8-79ef-4dfb-8bec-5713cdf13b27" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetInvestmentHedgingMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_9ae7c8a1-6568-4ab4-a6e5-3a7cb069a432" xlink:to="loc_us-gaap_NetInvestmentHedgingMember_770dacc8-79ef-4dfb-8bec-5713cdf13b27" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_EconomicHedgesMember_5374f352-67b0-45de-8820-6ac7b0707438" xlink:href="ppl-20210331.xsd#ppl_EconomicHedgesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_9ae7c8a1-6568-4ab4-a6e5-3a7cb069a432" xlink:to="loc_ppl_EconomicHedgesMember_5374f352-67b0-45de-8820-6ac7b0707438" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_cd183303-82aa-403c-ab97-b3a24ef00abe" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskTable_c5829a2b-e2aa-4618-aeea-c7711e7e77b0" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_cd183303-82aa-403c-ab97-b3a24ef00abe" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_cd183303-82aa-403c-ab97-b3a24ef00abe_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_cd183303-82aa-403c-ab97-b3a24ef00abe" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_cd183303-82aa-403c-ab97-b3a24ef00abe_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_e1a43df2-7ca3-4138-9b9f-3cfddfc0d12d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_cd183303-82aa-403c-ab97-b3a24ef00abe" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_e1a43df2-7ca3-4138-9b9f-3cfddfc0d12d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_f4608410-f802-43c3-8604-d83c04663b7f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_e1a43df2-7ca3-4138-9b9f-3cfddfc0d12d" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_f4608410-f802-43c3-8604-d83c04663b7f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_a0bba3ef-f72d-43ec-af64-65bb5b7d3f70" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestRateSwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_e1a43df2-7ca3-4138-9b9f-3cfddfc0d12d" xlink:to="loc_us-gaap_InterestRateSwapMember_a0bba3ef-f72d-43ec-af64-65bb5b7d3f70" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_c77a06c1-1917-490e-a568-54427caf01bb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ForeignExchangeContractMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_e1a43df2-7ca3-4138-9b9f-3cfddfc0d12d" xlink:to="loc_us-gaap_ForeignExchangeContractMember_c77a06c1-1917-490e-a568-54427caf01bb" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateContractMember_e4e049b7-8342-4fc1-9bdd-d2285749097d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestRateContractMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_e1a43df2-7ca3-4138-9b9f-3cfddfc0d12d" xlink:to="loc_us-gaap_InterestRateContractMember_e4e049b7-8342-4fc1-9bdd-d2285749097d" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeInstrumentAdditionalInformationAxis_5b5b5fa9-cdd6-4125-a6b2-cc4071a0d3f6" xlink:href="ppl-20210331.xsd#ppl_DerivativeInstrumentAdditionalInformationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_InterestRateRiskAndForeignCurrencyRiskTable_c5829a2b-e2aa-4618-aeea-c7711e7e77b0" xlink:to="loc_ppl_DerivativeInstrumentAdditionalInformationAxis_5b5b5fa9-cdd6-4125-a6b2-cc4071a0d3f6" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeInstrumentAdditionalInformationDomain_5b5b5fa9-cdd6-4125-a6b2-cc4071a0d3f6_default" xlink:href="ppl-20210331.xsd#ppl_DerivativeInstrumentAdditionalInformationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_DerivativeInstrumentAdditionalInformationAxis_5b5b5fa9-cdd6-4125-a6b2-cc4071a0d3f6" xlink:to="loc_ppl_DerivativeInstrumentAdditionalInformationDomain_5b5b5fa9-cdd6-4125-a6b2-cc4071a0d3f6_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeInstrumentAdditionalInformationDomain_138b3a48-4f7f-434c-8641-dfa622ffbe5a" xlink:href="ppl-20210331.xsd#ppl_DerivativeInstrumentAdditionalInformationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_DerivativeInstrumentAdditionalInformationAxis_5b5b5fa9-cdd6-4125-a6b2-cc4071a0d3f6" xlink:to="loc_ppl_DerivativeInstrumentAdditionalInformationDomain_138b3a48-4f7f-434c-8641-dfa622ffbe5a" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesFairValuesDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#DerivativeInstrumentsandHedgingActivitiesFairValuesDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesFairValuesDetails" xlink:type="extended" id="ib518d97e51da4bc5acc685b9c7d41dc1_DerivativeInstrumentsandHedgingActivitiesFairValuesDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_1bf4cd1b-02d1-47fa-a85e-5d34d7b6dbb5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativesFairValueLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_FairValuesByBalanceSheetLocationAbstract_6933586f-1fb1-42c5-a1eb-78210ffa711a" xlink:href="ppl-20210331.xsd#ppl_FairValuesByBalanceSheetLocationAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_1bf4cd1b-02d1-47fa-a85e-5d34d7b6dbb5" xlink:to="loc_ppl_FairValuesByBalanceSheetLocationAbstract_6933586f-1fb1-42c5-a1eb-78210ffa711a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeFairValueOfDerivativeAssetheldforsale_0c8a948b-f8b5-450e-83a2-f0230d269759" xlink:href="ppl-20210331.xsd#ppl_DerivativeFairValueOfDerivativeAssetheldforsale"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_FairValuesByBalanceSheetLocationAbstract_6933586f-1fb1-42c5-a1eb-78210ffa711a" xlink:to="loc_ppl_DerivativeFairValueOfDerivativeAssetheldforsale_0c8a948b-f8b5-450e-83a2-f0230d269759" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeFairValueOfDerivativeLiabilityheldforsale_a8958413-3d35-42d1-bcf6-3aa378ba4d20" xlink:href="ppl-20210331.xsd#ppl_DerivativeFairValueOfDerivativeLiabilityheldforsale"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_FairValuesByBalanceSheetLocationAbstract_6933586f-1fb1-42c5-a1eb-78210ffa711a" xlink:to="loc_ppl_DerivativeFairValueOfDerivativeLiabilityheldforsale_a8958413-3d35-42d1-bcf6-3aa378ba4d20" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_001cc50d-b174-409d-ab25-bfabb824c875" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_FairValuesByBalanceSheetLocationAbstract_6933586f-1fb1-42c5-a1eb-78210ffa711a" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_001cc50d-b174-409d-ab25-bfabb824c875" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_f6817c8f-99f2-47a2-9fdb-9a8299dd386d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_FairValuesByBalanceSheetLocationAbstract_6933586f-1fb1-42c5-a1eb-78210ffa711a" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_f6817c8f-99f2-47a2-9fdb-9a8299dd386d" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b392b0c7-6b08-4e2e-97c7-37a61c8d0034" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_1bf4cd1b-02d1-47fa-a85e-5d34d7b6dbb5" xlink:to="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b392b0c7-6b08-4e2e-97c7-37a61c8d0034" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_2cbd9eff-5c5a-41de-8483-67daa1ee7b48" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b392b0c7-6b08-4e2e-97c7-37a61c8d0034" xlink:to="loc_dei_LegalEntityAxis_2cbd9eff-5c5a-41de-8483-67daa1ee7b48" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_2cbd9eff-5c5a-41de-8483-67daa1ee7b48_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_2cbd9eff-5c5a-41de-8483-67daa1ee7b48" xlink:to="loc_dei_EntityDomain_2cbd9eff-5c5a-41de-8483-67daa1ee7b48_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_f8cb7727-2b36-4a60-8637-b4c7013a76bb" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_2cbd9eff-5c5a-41de-8483-67daa1ee7b48" xlink:to="loc_dei_EntityDomain_f8cb7727-2b36-4a60-8637-b4c7013a76bb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_4c8e7a0d-17ce-46ab-9470-89e49de2de12" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_f8cb7727-2b36-4a60-8637-b4c7013a76bb" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_4c8e7a0d-17ce-46ab-9470-89e49de2de12" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_30eb5598-739e-4e0f-869a-1c28f75594e9" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_f8cb7727-2b36-4a60-8637-b4c7013a76bb" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_30eb5598-739e-4e0f-869a-1c28f75594e9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_8fd5e87c-8d2e-4b68-ac2a-56d6fe3d9cef" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingDesignationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b392b0c7-6b08-4e2e-97c7-37a61c8d0034" xlink:to="loc_us-gaap_HedgingDesignationAxis_8fd5e87c-8d2e-4b68-ac2a-56d6fe3d9cef" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_8fd5e87c-8d2e-4b68-ac2a-56d6fe3d9cef_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_8fd5e87c-8d2e-4b68-ac2a-56d6fe3d9cef" xlink:to="loc_us-gaap_HedgingDesignationDomain_8fd5e87c-8d2e-4b68-ac2a-56d6fe3d9cef_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_a4501caa-5a8a-4a14-9046-465beea4adb5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_8fd5e87c-8d2e-4b68-ac2a-56d6fe3d9cef" xlink:to="loc_us-gaap_HedgingDesignationDomain_a4501caa-5a8a-4a14-9046-465beea4adb5" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_95a67409-f73d-48d9-b1ef-d241a9939b63" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_a4501caa-5a8a-4a14-9046-465beea4adb5" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_95a67409-f73d-48d9-b1ef-d241a9939b63" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_8b802213-da7d-4b90-ac06-bb891b5266fb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NondesignatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_a4501caa-5a8a-4a14-9046-465beea4adb5" xlink:to="loc_us-gaap_NondesignatedMember_8b802213-da7d-4b90-ac06-bb891b5266fb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_c8050023-7bee-45f1-9758-f244fa8b4689" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b392b0c7-6b08-4e2e-97c7-37a61c8d0034" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_c8050023-7bee-45f1-9758-f244fa8b4689" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_c8050023-7bee-45f1-9758-f244fa8b4689_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_c8050023-7bee-45f1-9758-f244fa8b4689" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_c8050023-7bee-45f1-9758-f244fa8b4689_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_c8050023-7bee-45f1-9758-f244fa8b4689" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CurrentAssetsMember_43663910-fee4-4f4b-974f-89fc75c6cca0" xlink:href="ppl-20210331.xsd#ppl_CurrentAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_CurrentAssetsMember_43663910-fee4-4f4b-974f-89fc75c6cca0" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherCurrentLiabilitiesMemberMember_799a4076-9194-4ec5-83fc-4618f47f96f0" xlink:href="ppl-20210331.xsd#ppl_OtherCurrentLiabilitiesMemberMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_OtherCurrentLiabilitiesMemberMember_799a4076-9194-4ec5-83fc-4618f47f96f0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CurrentAssetsHeldForSaleViaCurrentAssetsMember_6d17bd9a-ff1c-4c53-b7f5-20f58fd02cad" xlink:href="ppl-20210331.xsd#ppl_CurrentAssetsHeldForSaleViaCurrentAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_CurrentAssetsHeldForSaleViaCurrentAssetsMember_6d17bd9a-ff1c-4c53-b7f5-20f58fd02cad" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NoncurrentAssetsMember_48fbecae-0d8a-46e2-a9e1-5b7cccdb29dc" xlink:href="ppl-20210331.xsd#ppl_NoncurrentAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_NoncurrentAssetsMember_48fbecae-0d8a-46e2-a9e1-5b7cccdb29dc" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PriceRiskManagementAssetsNoncurrentMember_1dc243fb-8984-464a-9ed6-f46aef1bdf9a" xlink:href="ppl-20210331.xsd#ppl_PriceRiskManagementAssetsNoncurrentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_PriceRiskManagementAssetsNoncurrentMember_1dc243fb-8984-464a-9ed6-f46aef1bdf9a" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherDeferredCreditsAndNoncurrentLiabilitiesMember_c4d73960-ce2e-4b7c-96d2-f9bbae2ac137" xlink:href="ppl-20210331.xsd#ppl_OtherDeferredCreditsAndNoncurrentLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_OtherDeferredCreditsAndNoncurrentLiabilitiesMember_c4d73960-ce2e-4b7c-96d2-f9bbae2ac137" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CurrentLiabilitiesHeldForSaleViaCurrentLiabilitiesMember_2989d523-4bd4-4629-ac9c-686cf5ee285b" xlink:href="ppl-20210331.xsd#ppl_CurrentLiabilitiesHeldForSaleViaCurrentLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_CurrentLiabilitiesHeldForSaleViaCurrentLiabilitiesMember_2989d523-4bd4-4629-ac9c-686cf5ee285b" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CurrentLiabilitiesMember_6da26fa3-2c79-4af5-b80f-ffe93bdfce4f" xlink:href="ppl-20210331.xsd#ppl_CurrentLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_CurrentLiabilitiesMember_6da26fa3-2c79-4af5-b80f-ffe93bdfce4f" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PriceRiskManagementAssetsCurrentMember_cbb9d963-a75c-4e0d-9f73-93271c110e26" xlink:href="ppl-20210331.xsd#ppl_PriceRiskManagementAssetsCurrentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_PriceRiskManagementAssetsCurrentMember_cbb9d963-a75c-4e0d-9f73-93271c110e26" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NoncurrentLiabilitiesMember_515c2ebe-db8c-41c1-bd27-0bc6cc0a56f9" xlink:href="ppl-20210331.xsd#ppl_NoncurrentLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_NoncurrentLiabilitiesMember_515c2ebe-db8c-41c1-bd27-0bc6cc0a56f9" xlink:type="arc" order="9"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CurrentAssetsHeldForSaleViaNoncurrentAssetsMember_8c6c6536-895f-4c4f-a81f-70261e4b9e9a" xlink:href="ppl-20210331.xsd#ppl_CurrentAssetsHeldForSaleViaNoncurrentAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_CurrentAssetsHeldForSaleViaNoncurrentAssetsMember_8c6c6536-895f-4c4f-a81f-70261e4b9e9a" xlink:type="arc" order="10"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_CurrentLiabilitiesHeldForSaleViaNoncurrentLiabilitiesMember_f6508601-b828-419d-a09f-212cef852d79" xlink:href="ppl-20210331.xsd#ppl_CurrentLiabilitiesHeldForSaleViaNoncurrentLiabilitiesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_93a5b00e-9103-42c6-86f9-dd86fa451325" xlink:to="loc_ppl_CurrentLiabilitiesHeldForSaleViaNoncurrentLiabilitiesMember_f6508601-b828-419d-a09f-212cef852d79" xlink:type="arc" order="11"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_7b0001e9-b98a-402f-bf84-d1e3fd707a00" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b392b0c7-6b08-4e2e-97c7-37a61c8d0034" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_7b0001e9-b98a-402f-bf84-d1e3fd707a00" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_7b0001e9-b98a-402f-bf84-d1e3fd707a00_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_7b0001e9-b98a-402f-bf84-d1e3fd707a00" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_7b0001e9-b98a-402f-bf84-d1e3fd707a00_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_e6142d05-86be-44ea-b296-7f0bdb775996" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_7b0001e9-b98a-402f-bf84-d1e3fd707a00" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_e6142d05-86be-44ea-b296-7f0bdb775996" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_2bcdeba0-5c47-4318-81ad-79a7703b4f2f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestRateSwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_e6142d05-86be-44ea-b296-7f0bdb775996" xlink:to="loc_us-gaap_InterestRateSwapMember_2bcdeba0-5c47-4318-81ad-79a7703b4f2f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_3d48581b-f312-4670-9cde-0999ff5a65ed" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_e6142d05-86be-44ea-b296-7f0bdb775996" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_3d48581b-f312-4670-9cde-0999ff5a65ed" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_5c2dad9d-b93b-40ad-97cc-f76653499391" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ForeignExchangeContractMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_e6142d05-86be-44ea-b296-7f0bdb775996" xlink:to="loc_us-gaap_ForeignExchangeContractMember_5c2dad9d-b93b-40ad-97cc-f76653499391" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesGainsandLossesDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#DerivativeInstrumentsandHedgingActivitiesGainsandLossesDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesGainsandLossesDetails" xlink:type="extended" id="i2a003f2138dc4c6e93bd7255ae945e97_DerivativeInstrumentsandHedgingActivitiesGainsandLossesDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_3fa69cbc-a9ad-45f9-9d9f-d393237bd155" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_a030c448-07d1-4547-9683-0320f3166fe7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_3fa69cbc-a9ad-45f9-9d9f-d393237bd155" xlink:to="loc_us-gaap_InterestExpense_a030c448-07d1-4547-9683-0320f3166fe7" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_0744e15b-0afe-45f5-a53b-0ba246a4b3d9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_3fa69cbc-a9ad-45f9-9d9f-d393237bd155" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_0744e15b-0afe-45f5-a53b-0ba246a4b3d9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AmountsIncludedInIncomeStatementOrOtherComprehensiveIncomeAbstract_d05605e7-2d25-4319-87cc-eff6d26c2a93" xlink:href="ppl-20210331.xsd#ppl_AmountsIncludedInIncomeStatementOrOtherComprehensiveIncomeAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_3fa69cbc-a9ad-45f9-9d9f-d393237bd155" xlink:to="loc_ppl_AmountsIncludedInIncomeStatementOrOtherComprehensiveIncomeAbstract_d05605e7-2d25-4319-87cc-eff6d26c2a93" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherComprehensiveIncomeLossUnrealizedGainLossOnDerivativesArisingDuringPeriodPreTax_099f1b7b-47cd-4096-b624-1f1cd9448b72" xlink:href="ppl-20210331.xsd#ppl_OtherComprehensiveIncomeLossUnrealizedGainLossOnDerivativesArisingDuringPeriodPreTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AmountsIncludedInIncomeStatementOrOtherComprehensiveIncomeAbstract_d05605e7-2d25-4319-87cc-eff6d26c2a93" xlink:to="loc_ppl_OtherComprehensiveIncomeLossUnrealizedGainLossOnDerivativesArisingDuringPeriodPreTax_099f1b7b-47cd-4096-b624-1f1cd9448b72" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeBeforeTax_29c3b92d-969b-41ae-a27b-9dd2b741b8b4" xlink:href="ppl-20210331.xsd#ppl_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeBeforeTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AmountsIncludedInIncomeStatementOrOtherComprehensiveIncomeAbstract_d05605e7-2d25-4319-87cc-eff6d26c2a93" xlink:to="loc_ppl_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeBeforeTax_29c3b92d-969b-41ae-a27b-9dd2b741b8b4" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_f8335a29-17ed-46a3-bcd4-75198778ba0c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AmountsIncludedInIncomeStatementOrOtherComprehensiveIncomeAbstract_d05605e7-2d25-4319-87cc-eff6d26c2a93" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_f8335a29-17ed-46a3-bcd4-75198778ba0c" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeInstrumentsGainLossRecognizedInRegulatoryLiabilitiesAssets_da9ed175-0ac7-47a3-aa39-d030cc8d51c4" xlink:href="ppl-20210331.xsd#ppl_DerivativeInstrumentsGainLossRecognizedInRegulatoryLiabilitiesAssets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AmountsIncludedInIncomeStatementOrOtherComprehensiveIncomeAbstract_d05605e7-2d25-4319-87cc-eff6d26c2a93" xlink:to="loc_ppl_DerivativeInstrumentsGainLossRecognizedInRegulatoryLiabilitiesAssets_da9ed175-0ac7-47a3-aa39-d030cc8d51c4" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeNet_8633920c-b5df-4eb0-9a3a-3d7213859fc1" xlink:href="ppl-20210331.xsd#ppl_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeNet"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_3fa69cbc-a9ad-45f9-9d9f-d393237bd155" xlink:to="loc_ppl_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeNet_8633920c-b5df-4eb0-9a3a-3d7213859fc1" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_HedgedItemGainLossToIncome_4481733d-ac65-41e8-b0e0-9bda610a5b26" xlink:href="ppl-20210331.xsd#ppl_HedgedItemGainLossToIncome"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_3fa69cbc-a9ad-45f9-9d9f-d393237bd155" xlink:to="loc_ppl_HedgedItemGainLossToIncome_4481733d-ac65-41e8-b0e0-9bda610a5b26" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_56177fbc-c51a-4cfe-b88f-67bff912b34d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_3fa69cbc-a9ad-45f9-9d9f-d393237bd155" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_56177fbc-c51a-4cfe-b88f-67bff912b34d" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_015f2d7c-8718-4e97-a8e8-5f355c1a25d2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_3fa69cbc-a9ad-45f9-9d9f-d393237bd155" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_015f2d7c-8718-4e97-a8e8-5f355c1a25d2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_c89ac180-b0b1-4b56-bb2b-9ded85764765" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_015f2d7c-8718-4e97-a8e8-5f355c1a25d2" xlink:to="loc_dei_LegalEntityAxis_c89ac180-b0b1-4b56-bb2b-9ded85764765" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_c89ac180-b0b1-4b56-bb2b-9ded85764765_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_c89ac180-b0b1-4b56-bb2b-9ded85764765" xlink:to="loc_dei_EntityDomain_c89ac180-b0b1-4b56-bb2b-9ded85764765_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_bab0e3fa-2de4-44a5-9b36-8dce4643bff6" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_c89ac180-b0b1-4b56-bb2b-9ded85764765" xlink:to="loc_dei_EntityDomain_bab0e3fa-2de4-44a5-9b36-8dce4643bff6" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_cab71bd6-0fb8-4187-b43f-01002e0aa2fa" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_bab0e3fa-2de4-44a5-9b36-8dce4643bff6" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_cab71bd6-0fb8-4187-b43f-01002e0aa2fa" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_efe4a0ef-64d1-4885-af85-2711cf33e437" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_bab0e3fa-2de4-44a5-9b36-8dce4643bff6" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_efe4a0ef-64d1-4885-af85-2711cf33e437" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_f2e1d6ec-89df-4ffd-948f-c6d2db8d75e2" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_bab0e3fa-2de4-44a5-9b36-8dce4643bff6" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_f2e1d6ec-89df-4ffd-948f-c6d2db8d75e2" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_18326c20-fbaf-4169-a556-23b832dbb356" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingDesignationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_015f2d7c-8718-4e97-a8e8-5f355c1a25d2" xlink:to="loc_us-gaap_HedgingDesignationAxis_18326c20-fbaf-4169-a556-23b832dbb356" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_18326c20-fbaf-4169-a556-23b832dbb356_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_18326c20-fbaf-4169-a556-23b832dbb356" xlink:to="loc_us-gaap_HedgingDesignationDomain_18326c20-fbaf-4169-a556-23b832dbb356_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_e507b471-0d6c-44f7-872d-07be810e8fef" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_18326c20-fbaf-4169-a556-23b832dbb356" xlink:to="loc_us-gaap_HedgingDesignationDomain_e507b471-0d6c-44f7-872d-07be810e8fef" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_46bdf6c1-28ee-4c68-af1e-e647a805f45f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NondesignatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_e507b471-0d6c-44f7-872d-07be810e8fef" xlink:to="loc_us-gaap_NondesignatedMember_46bdf6c1-28ee-4c68-af1e-e647a805f45f" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_d48b11df-ce50-4665-8828-d1a46b7dbc05" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_e507b471-0d6c-44f7-872d-07be810e8fef" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_d48b11df-ce50-4665-8828-d1a46b7dbc05" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_1aa633e1-519a-4c82-8f90-f4543cd0f270" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_015f2d7c-8718-4e97-a8e8-5f355c1a25d2" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_1aa633e1-519a-4c82-8f90-f4543cd0f270" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_1aa633e1-519a-4c82-8f90-f4543cd0f270_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingRelationshipDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_1aa633e1-519a-4c82-8f90-f4543cd0f270" xlink:to="loc_us-gaap_HedgingRelationshipDomain_1aa633e1-519a-4c82-8f90-f4543cd0f270_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_937ef57a-2690-4983-8927-b66f49535552" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_HedgingRelationshipDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_1aa633e1-519a-4c82-8f90-f4543cd0f270" xlink:to="loc_us-gaap_HedgingRelationshipDomain_937ef57a-2690-4983-8927-b66f49535552" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_0aff7816-425c-416a-833d-9bd2efed1994" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashFlowHedgingMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_937ef57a-2690-4983-8927-b66f49535552" xlink:to="loc_us-gaap_CashFlowHedgingMember_0aff7816-425c-416a-833d-9bd2efed1994" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentHedgingMember_0132d1a3-228f-4228-a9c3-eb5cc4403dac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetInvestmentHedgingMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_937ef57a-2690-4983-8927-b66f49535552" xlink:to="loc_us-gaap_NetInvestmentHedgingMember_0132d1a3-228f-4228-a9c3-eb5cc4403dac" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_a8961acd-5db9-46d6-a16a-7e9d65b4c3c6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_015f2d7c-8718-4e97-a8e8-5f355c1a25d2" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_a8961acd-5db9-46d6-a16a-7e9d65b4c3c6" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_a8961acd-5db9-46d6-a16a-7e9d65b4c3c6_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_a8961acd-5db9-46d6-a16a-7e9d65b4c3c6" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_a8961acd-5db9-46d6-a16a-7e9d65b4c3c6_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_838faebc-a989-4d80-8c72-c4f7e779863f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_a8961acd-5db9-46d6-a16a-7e9d65b4c3c6" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_838faebc-a989-4d80-8c72-c4f7e779863f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_0d51923a-46b3-4801-a4f8-b509b14b7597" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestRateSwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_838faebc-a989-4d80-8c72-c4f7e779863f" xlink:to="loc_us-gaap_InterestRateSwapMember_0d51923a-46b3-4801-a4f8-b509b14b7597" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_c7f6f3ff-c6e1-4436-894f-37d798faa96d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ForeignExchangeContractMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_838faebc-a989-4d80-8c72-c4f7e779863f" xlink:to="loc_us-gaap_ForeignExchangeContractMember_c7f6f3ff-c6e1-4436-894f-37d798faa96d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_4a53b2c2-d386-4274-91ea-e60e9877243e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_838faebc-a989-4d80-8c72-c4f7e779863f" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_4a53b2c2-d386-4274-91ea-e60e9877243e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_9d86f6ff-e5bf-4953-867e-8e84f5215cec" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_015f2d7c-8718-4e97-a8e8-5f355c1a25d2" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_9d86f6ff-e5bf-4953-867e-8e84f5215cec" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_9d86f6ff-e5bf-4953-867e-8e84f5215cec_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_9d86f6ff-e5bf-4953-867e-8e84f5215cec" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_9d86f6ff-e5bf-4953-867e-8e84f5215cec_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_5c4a9d62-928d-42cc-a35a-4f10fecf7c91" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_9d86f6ff-e5bf-4953-867e-8e84f5215cec" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_5c4a9d62-928d-42cc-a35a-4f10fecf7c91" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseMember_4b73b138-832b-4214-9a31-d6b3fd255301" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_5c4a9d62-928d-42cc-a35a-4f10fecf7c91" xlink:to="loc_us-gaap_InterestExpenseMember_4b73b138-832b-4214-9a31-d6b3fd255301" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OtherIncomeExpenseNetMember_cc2e9909-b2cb-4ae0-be75-4fcd2f44e218" xlink:href="ppl-20210331.xsd#ppl_OtherIncomeExpenseNetMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_5c4a9d62-928d-42cc-a35a-4f10fecf7c91" xlink:to="loc_ppl_OtherIncomeExpenseNetMember_cc2e9909-b2cb-4ae0-be75-4fcd2f44e218" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DiscontinuedOperationsNetOfIncomeTaxesMember_41df78bf-682f-4ca0-a865-2d7dc19a08b2" xlink:href="ppl-20210331.xsd#ppl_DiscontinuedOperationsNetOfIncomeTaxesMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_5c4a9d62-928d-42cc-a35a-4f10fecf7c91" xlink:to="loc_ppl_DiscontinuedOperationsNetOfIncomeTaxesMember_41df78bf-682f-4ca0-a865-2d7dc19a08b2" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLocationAxis_6d588b35-01b5-4932-b632-7364b169cc1e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_015f2d7c-8718-4e97-a8e8-5f355c1a25d2" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLocationAxis_6d588b35-01b5-4932-b632-7364b169cc1e" xlink:type="arc" order="6"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLocationDomain_6d588b35-01b5-4932-b632-7364b169cc1e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLocationAxis_6d588b35-01b5-4932-b632-7364b169cc1e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLocationDomain_6d588b35-01b5-4932-b632-7364b169cc1e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLocationDomain_1aa6b107-06d3-4114-89a0-5fca907f9079" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLocationAxis_6d588b35-01b5-4932-b632-7364b169cc1e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLocationDomain_1aa6b107-06d3-4114-89a0-5fca907f9079" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeMember_0826fc5b-1432-483d-b4de-109ab1828beb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLocationDomain_1aa6b107-06d3-4114-89a0-5fca907f9079" xlink:to="loc_us-gaap_OtherComprehensiveIncomeMember_0826fc5b-1432-483d-b4de-109ab1828beb" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeInstrumentsGainLossByBalanceSheetLocationAxis_d233a26f-35b9-4241-9937-c4f74a13765e" xlink:href="ppl-20210331.xsd#ppl_DerivativeInstrumentsGainLossByBalanceSheetLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_015f2d7c-8718-4e97-a8e8-5f355c1a25d2" xlink:to="loc_ppl_DerivativeInstrumentsGainLossByBalanceSheetLocationAxis_d233a26f-35b9-4241-9937-c4f74a13765e" xlink:type="arc" order="7"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeBalanceSheetLocationDomain_d233a26f-35b9-4241-9937-c4f74a13765e_default" xlink:href="ppl-20210331.xsd#ppl_DerivativeBalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ppl_DerivativeInstrumentsGainLossByBalanceSheetLocationAxis_d233a26f-35b9-4241-9937-c4f74a13765e" xlink:to="loc_ppl_DerivativeBalanceSheetLocationDomain_d233a26f-35b9-4241-9937-c4f74a13765e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeBalanceSheetLocationDomain_6d8f39ee-d201-42c4-b31d-4d3c47913e00" xlink:href="ppl-20210331.xsd#ppl_DerivativeBalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ppl_DerivativeInstrumentsGainLossByBalanceSheetLocationAxis_d233a26f-35b9-4241-9937-c4f74a13765e" xlink:to="loc_ppl_DerivativeBalanceSheetLocationDomain_6d8f39ee-d201-42c4-b31d-4d3c47913e00" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_RegulatoryAssetsNoncurrentMember_20365592-6e20-49d9-aeb9-951259b4ed8e" xlink:href="ppl-20210331.xsd#ppl_RegulatoryAssetsNoncurrentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DerivativeBalanceSheetLocationDomain_6d8f39ee-d201-42c4-b31d-4d3c47913e00" xlink:to="loc_ppl_RegulatoryAssetsNoncurrentMember_20365592-6e20-49d9-aeb9-951259b4ed8e" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_97bf64e0-3b61-4e76-b46e-81dc3e472d1e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_015f2d7c-8718-4e97-a8e8-5f355c1a25d2" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_97bf64e0-3b61-4e76-b46e-81dc3e472d1e" xlink:type="arc" order="8"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_97bf64e0-3b61-4e76-b46e-81dc3e472d1e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_97bf64e0-3b61-4e76-b46e-81dc3e472d1e" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_97bf64e0-3b61-4e76-b46e-81dc3e472d1e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_04f93b9d-4303-4e64-9de3-25f0b93e43eb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_97bf64e0-3b61-4e76-b46e-81dc3e472d1e" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_04f93b9d-4303-4e64-9de3-25f0b93e43eb" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_NoncurrentAssetsMember_4c21d945-0f96-487d-8131-dd3c0305f49c" xlink:href="ppl-20210331.xsd#ppl_NoncurrentAssetsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_04f93b9d-4303-4e64-9de3-25f0b93e43eb" xlink:to="loc_ppl_NoncurrentAssetsMember_4c21d945-0f96-487d-8131-dd3c0305f49c" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesOffsettingDerivativeInstrumentsandCreditRiskRelatedFeaturesDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#DerivativeInstrumentsandHedgingActivitiesOffsettingDerivativeInstrumentsandCreditRiskRelatedFeaturesDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/DerivativeInstrumentsandHedgingActivitiesOffsettingDerivativeInstrumentsandCreditRiskRelatedFeaturesDetails" xlink:type="extended" id="id5a08813f4464909b11b61603c5e669c_DerivativeInstrumentsandHedgingActivitiesOffsettingDerivativeInstrumentsandCreditRiskRelatedFeaturesDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_OffsettingAssetsAndLiabilitiesLineItems_b70395af-c36c-49ec-a730-e26110f66a23" xlink:href="ppl-20210331.xsd#ppl_OffsettingAssetsAndLiabilitiesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffsettingDerivativeAssetsAbstract_09442ce2-07ec-417c-8989-c09559073784" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OffsettingDerivativeAssetsAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OffsettingAssetsAndLiabilitiesLineItems_b70395af-c36c-49ec-a730-e26110f66a23" xlink:to="loc_us-gaap_OffsettingDerivativeAssetsAbstract_09442ce2-07ec-417c-8989-c09559073784" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_addca2c7-4b79-4271-9176-90e98c86d444" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingDerivativeAssetsAbstract_09442ce2-07ec-417c-8989-c09559073784" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_addca2c7-4b79-4271-9176-90e98c86d444" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction_1d8cb9f4-330c-49f9-9c88-f58ace0c44cb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingDerivativeAssetsAbstract_09442ce2-07ec-417c-8989-c09559073784" xlink:to="loc_us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction_1d8cb9f4-330c-49f9-9c88-f58ace0c44cb" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeCollateralObligationToReturnCash_193977ee-96b2-40a6-81e2-9d07cd3e47de" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeCollateralObligationToReturnCash"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingDerivativeAssetsAbstract_09442ce2-07ec-417c-8989-c09559073784" xlink:to="loc_us-gaap_DerivativeCollateralObligationToReturnCash_193977ee-96b2-40a6-81e2-9d07cd3e47de" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_5a6af501-78f9-42ee-80fd-a23b8b51f812" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeAssets"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingDerivativeAssetsAbstract_09442ce2-07ec-417c-8989-c09559073784" xlink:to="loc_us-gaap_DerivativeAssets_5a6af501-78f9-42ee-80fd-a23b8b51f812" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffsettingDerivativeLiabilitiesAbstract_797fe8a1-46b2-4479-8eae-19fdb1d5f197" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OffsettingDerivativeLiabilitiesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_OffsettingAssetsAndLiabilitiesLineItems_b70395af-c36c-49ec-a730-e26110f66a23" xlink:to="loc_us-gaap_OffsettingDerivativeLiabilitiesAbstract_797fe8a1-46b2-4479-8eae-19fdb1d5f197" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_d7c2c81f-d115-4f7a-bf42-9a07198cb106" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingDerivativeLiabilitiesAbstract_797fe8a1-46b2-4479-8eae-19fdb1d5f197" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_d7c2c81f-d115-4f7a-bf42-9a07198cb106" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction_df4c8ffd-64fe-4a2c-aaf8-1d036f7a17bf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingDerivativeLiabilitiesAbstract_797fe8a1-46b2-4479-8eae-19fdb1d5f197" xlink:to="loc_us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction_df4c8ffd-64fe-4a2c-aaf8-1d036f7a17bf" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeCollateralRightToReclaimCash_52469088-d38a-4d17-b4a6-8a62435e3864" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeCollateralRightToReclaimCash"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingDerivativeLiabilitiesAbstract_797fe8a1-46b2-4479-8eae-19fdb1d5f197" xlink:to="loc_us-gaap_DerivativeCollateralRightToReclaimCash_52469088-d38a-4d17-b4a6-8a62435e3864" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_19eea059-5c26-4f20-96b3-c36790c6934a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeLiabilities"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingDerivativeLiabilitiesAbstract_797fe8a1-46b2-4479-8eae-19fdb1d5f197" xlink:to="loc_us-gaap_DerivativeLiabilities_19eea059-5c26-4f20-96b3-c36790c6934a" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_OffsettingAssetsAndLiabilitiesTable_e5a3a819-2ea1-482a-b1db-82016927c9f0" xlink:href="ppl-20210331.xsd#ppl_OffsettingAssetsAndLiabilitiesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_OffsettingAssetsAndLiabilitiesLineItems_b70395af-c36c-49ec-a730-e26110f66a23" xlink:to="loc_ppl_OffsettingAssetsAndLiabilitiesTable_e5a3a819-2ea1-482a-b1db-82016927c9f0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_deb91845-ad86-45f3-af53-06ed76486b93" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_OffsettingAssetsAndLiabilitiesTable_e5a3a819-2ea1-482a-b1db-82016927c9f0" xlink:to="loc_dei_LegalEntityAxis_deb91845-ad86-45f3-af53-06ed76486b93" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_deb91845-ad86-45f3-af53-06ed76486b93_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_deb91845-ad86-45f3-af53-06ed76486b93" xlink:to="loc_dei_EntityDomain_deb91845-ad86-45f3-af53-06ed76486b93_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_a8e12424-0597-42a6-ac1a-38872394c93e" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_deb91845-ad86-45f3-af53-06ed76486b93" xlink:to="loc_dei_EntityDomain_a8e12424-0597-42a6-ac1a-38872394c93e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_13254ede-b0cb-4824-ade0-d906646b0d5a" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a8e12424-0597-42a6-ac1a-38872394c93e" xlink:to="loc_ppl_LouisvilleGasAndElectricCompanyMember_13254ede-b0cb-4824-ade0-d906646b0d5a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_236efe89-4ba2-4357-88d6-10be2f597539" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a8e12424-0597-42a6-ac1a-38872394c93e" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_236efe89-4ba2-4357-88d6-10be2f597539" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_4472f00f-64a2-4def-8c58-d9d06959b9a8" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a8e12424-0597-42a6-ac1a-38872394c93e" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_4472f00f-64a2-4def-8c58-d9d06959b9a8" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_f63f8670-919d-4e49-9e6f-68e5ee7b8f88" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_OffsettingAssetsAndLiabilitiesTable_e5a3a819-2ea1-482a-b1db-82016927c9f0" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_f63f8670-919d-4e49-9e6f-68e5ee7b8f88" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_f63f8670-919d-4e49-9e6f-68e5ee7b8f88_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_f63f8670-919d-4e49-9e6f-68e5ee7b8f88" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_f63f8670-919d-4e49-9e6f-68e5ee7b8f88_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_42997097-9c6e-4bc8-ac99-341141ba2b32" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_f63f8670-919d-4e49-9e6f-68e5ee7b8f88" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_42997097-9c6e-4bc8-ac99-341141ba2b32" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SwapMember_d53408e1-369d-4de1-bcfb-3543a9f3b87a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_42997097-9c6e-4bc8-ac99-341141ba2b32" xlink:to="loc_us-gaap_SwapMember_d53408e1-369d-4de1-bcfb-3543a9f3b87a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeCreditRiskRelatedContingentFeaturesLineItems_e9d2cb6a-5f84-450b-aff8-068a304cce50" xlink:href="ppl-20210331.xsd#ppl_DerivativeCreditRiskRelatedContingentFeaturesLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeCreditRiskRelatedContingentFeaturesAbstract_f9eae821-a222-449f-9adc-3f96846cbef3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeCreditRiskRelatedContingentFeaturesAbstract"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_DerivativeCreditRiskRelatedContingentFeaturesLineItems_e9d2cb6a-5f84-450b-aff8-068a304cce50" xlink:to="loc_us-gaap_DerivativeCreditRiskRelatedContingentFeaturesAbstract_f9eae821-a222-449f-9adc-3f96846cbef3" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeNetLiabilityPositionAggregateFairValueAlternative_3a4874bc-24df-4a4e-acb9-0b1b5ff8df26" xlink:href="ppl-20210331.xsd#ppl_DerivativeNetLiabilityPositionAggregateFairValueAlternative"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeCreditRiskRelatedContingentFeaturesAbstract_f9eae821-a222-449f-9adc-3f96846cbef3" xlink:to="loc_ppl_DerivativeNetLiabilityPositionAggregateFairValueAlternative_3a4874bc-24df-4a4e-acb9-0b1b5ff8df26" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralAlreadyPostedAggregateFairValue_8536c320-6841-4bb8-87b5-8e11318f7c17" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CollateralAlreadyPostedAggregateFairValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeCreditRiskRelatedContingentFeaturesAbstract_f9eae821-a222-449f-9adc-3f96846cbef3" xlink:to="loc_us-gaap_CollateralAlreadyPostedAggregateFairValue_8536c320-6841-4bb8-87b5-8e11318f7c17" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalCollateralAggregateFairValue_cd31c762-1445-4c25-bf16-0e8dd8cd8246" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalCollateralAggregateFairValue"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeCreditRiskRelatedContingentFeaturesAbstract_f9eae821-a222-449f-9adc-3f96846cbef3" xlink:to="loc_us-gaap_AdditionalCollateralAggregateFairValue_cd31c762-1445-4c25-bf16-0e8dd8cd8246" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DerivativeCreditRiskRelatedContingentFeaturesTable_cf2a0205-a637-4b25-b7b8-054a60367088" xlink:href="ppl-20210331.xsd#ppl_DerivativeCreditRiskRelatedContingentFeaturesTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_DerivativeCreditRiskRelatedContingentFeaturesLineItems_e9d2cb6a-5f84-450b-aff8-068a304cce50" xlink:to="loc_ppl_DerivativeCreditRiskRelatedContingentFeaturesTable_cf2a0205-a637-4b25-b7b8-054a60367088" xlink:type="arc" order="2" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_09d5aa93-9d29-4aca-9c41-7e8c540c45da" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DerivativeCreditRiskRelatedContingentFeaturesTable_cf2a0205-a637-4b25-b7b8-054a60367088" xlink:to="loc_dei_LegalEntityAxis_09d5aa93-9d29-4aca-9c41-7e8c540c45da" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_09d5aa93-9d29-4aca-9c41-7e8c540c45da_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_e3ebad67-361e-4cff-828a-bf68cce5c170" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCompanyMember_d253bccd-22d3-453d-9b11-058539d1c5d0" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCompanyMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_6faa9a31-b0b7-4f73-a4fa-bbb4cf94370c" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_64dc3731-4a08-4a16-a709-f1d0e9c5e3b0" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/StatementofFinancialPositionClassifiedStatement" xlink:type="simple" xlink:href="ppl-20210331.xsd#StatementofFinancialPositionClassifiedStatement"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/StatementofFinancialPositionClassifiedStatement" xlink:type="extended" id="i5fc40eb296ff43aeac59cafec6feb08f_StatementofFinancialPositionClassifiedStatement"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/Goodwill" xlink:type="simple" xlink:href="ppl-20210331.xsd#Goodwill"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/Goodwill" xlink:type="extended" id="id597f631a7724ee4b76078caac88d594_Goodwill"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/GoodwillandOtherIntangibleAssetsGoodwillandOtherIntangibleAssetsDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#GoodwillandOtherIntangibleAssetsGoodwillandOtherIntangibleAssetsDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/GoodwillandOtherIntangibleAssetsGoodwillandOtherIntangibleAssetsDetails" xlink:type="extended" id="ib4299f2e221246c7af8345a7ce1002df_GoodwillandOtherIntangibleAssetsGoodwillandOtherIntangibleAssetsDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_c2506f89-44a3-46bf-81cf-af8d023458a8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_d315c08f-4d14-416c-8002-81d74d9d9d10" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_c2506f89-44a3-46bf-81cf-af8d023458a8" xlink:to="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_d315c08f-4d14-416c-8002-81d74d9d9d10" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_9a777eed-e6a0-437d-937c-6d1d1663595b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_d315c08f-4d14-416c-8002-81d74d9d9d10" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_9a777eed-e6a0-437d-937c-6d1d1663595b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_9a777eed-e6a0-437d-937c-6d1d1663595b_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_9a777eed-e6a0-437d-937c-6d1d1663595b" xlink:to="loc_us-gaap_SegmentDomain_9a777eed-e6a0-437d-937c-6d1d1663595b_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_c91ffcf2-95dc-4b59-9e0e-e280c989dd9d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_9a777eed-e6a0-437d-937c-6d1d1663595b" xlink:to="loc_us-gaap_SegmentDomain_c91ffcf2-95dc-4b59-9e0e-e280c989dd9d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateMember_e373e4d4-4af3-4df3-b332-8875b35a4e2c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CorporateMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_c91ffcf2-95dc-4b59-9e0e-e280c989dd9d" xlink:to="loc_us-gaap_CorporateMember_e373e4d4-4af3-4df3-b332-8875b35a4e2c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_UnitedKingdomRegulatedMember_0691e8aa-74e0-4089-9abf-f2db51474f24" xlink:href="ppl-20210331.xsd#ppl_UnitedKingdomRegulatedMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_c91ffcf2-95dc-4b59-9e0e-e280c989dd9d" xlink:to="loc_ppl_UnitedKingdomRegulatedMember_0691e8aa-74e0-4089-9abf-f2db51474f24" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_7491f29a-cf2e-43ba-8d38-9e429827e89c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_d315c08f-4d14-416c-8002-81d74d9d9d10" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_7491f29a-cf2e-43ba-8d38-9e429827e89c" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_7491f29a-cf2e-43ba-8d38-9e429827e89c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_7491f29a-cf2e-43ba-8d38-9e429827e89c" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_7491f29a-cf2e-43ba-8d38-9e429827e89c_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_62235928-cfc4-455e-8096-4f4e2e14c9d9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_7491f29a-cf2e-43ba-8d38-9e429827e89c" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_62235928-cfc4-455e-8096-4f4e2e14c9d9" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/AssetRetirementObligations" xlink:type="simple" xlink:href="ppl-20210331.xsd#AssetRetirementObligations"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AssetRetirementObligations" xlink:type="extended" id="i4a3acc610c394efdb095de12f756e96d_AssetRetirementObligations">
<link:loc xlink:type="locator" xlink:label="loc_ppl_AssetRetirementObligationsLineItems_b123362f-39a1-4786-9c92-8ef73cd6a1e2" xlink:href="ppl-20210331.xsd#ppl_AssetRetirementObligationsLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureTextBlock_43a896f7-4561-4dc4-a147-fe8d143c4e33" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AssetRetirementObligationsLineItems_b123362f-39a1-4786-9c92-8ef73cd6a1e2" xlink:to="loc_us-gaap_AssetRetirementObligationDisclosureTextBlock_43a896f7-4561-4dc4-a147-fe8d143c4e33" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisclosureTable_b73f9920-b30d-4d2d-899f-f9f27dfd7572" xlink:href="ppl-20210331.xsd#ppl_DisclosureTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_AssetRetirementObligationsLineItems_b123362f-39a1-4786-9c92-8ef73cd6a1e2" xlink:to="loc_ppl_DisclosureTable_b73f9920-b30d-4d2d-899f-f9f27dfd7572" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_40354b32-06eb-4a06-8fc8-402af01da656" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DisclosureTable_b73f9920-b30d-4d2d-899f-f9f27dfd7572" xlink:to="loc_dei_LegalEntityAxis_40354b32-06eb-4a06-8fc8-402af01da656" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_40354b32-06eb-4a06-8fc8-402af01da656_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_40354b32-06eb-4a06-8fc8-402af01da656" xlink:to="loc_dei_EntityDomain_40354b32-06eb-4a06-8fc8-402af01da656_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_f69da83f-d725-4e31-ba06-f542d12ae8aa" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_40354b32-06eb-4a06-8fc8-402af01da656" xlink:to="loc_dei_EntityDomain_f69da83f-d725-4e31-ba06-f542d12ae8aa" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_46d4c29b-b850-4970-b700-d7ea165925ce" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_f69da83f-d725-4e31-ba06-f542d12ae8aa" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_46d4c29b-b850-4970-b700-d7ea165925ce" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_b9ee402f-f769-4e7b-9d47-60188d889c9d" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_f69da83f-d725-4e31-ba06-f542d12ae8aa" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_b9ee402f-f769-4e7b-9d47-60188d889c9d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_70361017-0b68-4f31-977b-743a3fcd9ccf" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_f69da83f-d725-4e31-ba06-f542d12ae8aa" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_70361017-0b68-4f31-977b-743a3fcd9ccf" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/AssetRetirementObligationsTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#AssetRetirementObligationsTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AssetRetirementObligationsTables" xlink:type="extended" id="i2149c73d07f34d1ba516231a7eb42a4d_AssetRetirementObligationsTables">
<link:loc xlink:type="locator" xlink:label="loc_ppl_AssetRetirementObligationLineItems_9dbc7aa4-f0d2-4179-ac67-aadc4aa01f00" xlink:href="ppl-20210331.xsd#ppl_AssetRetirementObligationLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_f36df498-821f-4839-8a66-e1e6ba16be0c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AssetRetirementObligationLineItems_9dbc7aa4-f0d2-4179-ac67-aadc4aa01f00" xlink:to="loc_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_f36df498-821f-4839-8a66-e1e6ba16be0c" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_DisclosureTable_5c186e03-6fa2-4d3b-a923-e3825ffd7ff3" xlink:href="ppl-20210331.xsd#ppl_DisclosureTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_AssetRetirementObligationLineItems_9dbc7aa4-f0d2-4179-ac67-aadc4aa01f00" xlink:to="loc_ppl_DisclosureTable_5c186e03-6fa2-4d3b-a923-e3825ffd7ff3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_4c1cc252-6241-413f-ac84-ecd317847d60" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_DisclosureTable_5c186e03-6fa2-4d3b-a923-e3825ffd7ff3" xlink:to="loc_dei_LegalEntityAxis_4c1cc252-6241-413f-ac84-ecd317847d60" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_4c1cc252-6241-413f-ac84-ecd317847d60_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_4c1cc252-6241-413f-ac84-ecd317847d60" xlink:to="loc_dei_EntityDomain_4c1cc252-6241-413f-ac84-ecd317847d60_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_e72218ad-7bb9-43b6-b56e-d1c9ed86385d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_4c1cc252-6241-413f-ac84-ecd317847d60" xlink:to="loc_dei_EntityDomain_e72218ad-7bb9-43b6-b56e-d1c9ed86385d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_f7574709-4e86-43df-b66d-e7cdcc2e440b" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_e72218ad-7bb9-43b6-b56e-d1c9ed86385d" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_f7574709-4e86-43df-b66d-e7cdcc2e440b" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_8234782f-2341-4e12-93e3-c041e5e5aa57" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_e72218ad-7bb9-43b6-b56e-d1c9ed86385d" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_8234782f-2341-4e12-93e3-c041e5e5aa57" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_57786016-bfd9-4f65-bdda-708ede22f176" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_e72218ad-7bb9-43b6-b56e-d1c9ed86385d" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_57786016-bfd9-4f65-bdda-708ede22f176" xlink:type="arc" order="2"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/AssetRetirementObligationsDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#AssetRetirementObligationsDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AssetRetirementObligationsDetails" xlink:type="extended" id="ic202c2d004814ff3a3bfbcbaeccf93fe_AssetRetirementObligationsDetails">
<link:loc xlink:type="locator" xlink:label="loc_ppl_AssetRetirementObligationLineItems_366c0bb5-175b-4349-8bea-af7689df563b" xlink:href="ppl-20210331.xsd#ppl_AssetRetirementObligationLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_472e65e9-8285-40c6-af05-2a2e34327222" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AssetRetirementObligationLineItems_366c0bb5-175b-4349-8bea-af7689df563b" xlink:to="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_472e65e9-8285-40c6-af05-2a2e34327222" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligation_1e7e8e11-0f46-40eb-9d74-d47415198b4e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligation"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_472e65e9-8285-40c6-af05-2a2e34327222" xlink:to="loc_us-gaap_AssetRetirementObligation_1e7e8e11-0f46-40eb-9d74-d47415198b4e" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationAccretionExpense_7b89f9c6-c2b6-422f-8aea-940f41b31eb3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligationAccretionExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_472e65e9-8285-40c6-af05-2a2e34327222" xlink:to="loc_us-gaap_AssetRetirementObligationAccretionExpense_7b89f9c6-c2b6-422f-8aea-940f41b31eb3" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationRevisionOfEstimate_1951f55a-615f-492f-9944-949233b777bb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligationRevisionOfEstimate"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_472e65e9-8285-40c6-af05-2a2e34327222" xlink:to="loc_us-gaap_AssetRetirementObligationRevisionOfEstimate_1951f55a-615f-492f-9944-949233b777bb" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationForeignCurrencyTranslationGainLoss_03256abf-2f5d-4f9a-a6fb-1ee8e45be875" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligationForeignCurrencyTranslationGainLoss"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_472e65e9-8285-40c6-af05-2a2e34327222" xlink:to="loc_us-gaap_AssetRetirementObligationForeignCurrencyTranslationGainLoss_03256abf-2f5d-4f9a-a6fb-1ee8e45be875" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationLiabilitiesSettled_df1d059f-46c0-4223-b62c-06dd725a4e6e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligationLiabilitiesSettled"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_472e65e9-8285-40c6-af05-2a2e34327222" xlink:to="loc_us-gaap_AssetRetirementObligationLiabilitiesSettled_df1d059f-46c0-4223-b62c-06dd725a4e6e" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligation_0206b5f3-6f18-487d-8ea0-7c5dc66bcfdb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetRetirementObligation"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetAmortizationPeriod_681b085d-f13e-4e7a-91b3-e8905f55ac9f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RegulatoryAssetAmortizationPeriod"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ppl_AssetRetirementObligationLineItems_366c0bb5-175b-4349-8bea-af7689df563b" xlink:to="loc_us-gaap_RegulatoryAssetAmortizationPeriod_681b085d-f13e-4e7a-91b3-e8905f55ac9f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AssetRetirementObligationsTable_5b36841d-2802-4baa-b9cd-1fbcfc773ffd" xlink:href="ppl-20210331.xsd#ppl_AssetRetirementObligationsTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ppl_AssetRetirementObligationLineItems_366c0bb5-175b-4349-8bea-af7689df563b" xlink:to="loc_ppl_AssetRetirementObligationsTable_5b36841d-2802-4baa-b9cd-1fbcfc773ffd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_8a0e1b28-c754-4326-b578-c3cdbcd20609" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_AssetRetirementObligationsTable_5b36841d-2802-4baa-b9cd-1fbcfc773ffd" xlink:to="loc_dei_LegalEntityAxis_8a0e1b28-c754-4326-b578-c3cdbcd20609" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_8a0e1b28-c754-4326-b578-c3cdbcd20609_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_8a0e1b28-c754-4326-b578-c3cdbcd20609" xlink:to="loc_dei_EntityDomain_8a0e1b28-c754-4326-b578-c3cdbcd20609_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_73eda3bc-9b2d-440c-a8b8-001fa51bbe54" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_8a0e1b28-c754-4326-b578-c3cdbcd20609" xlink:to="loc_dei_EntityDomain_73eda3bc-9b2d-440c-a8b8-001fa51bbe54" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_PplElectricUtilitiesCorpMember_4c36aa47-3cda-41be-86f4-d67468d15110" xlink:href="ppl-20210331.xsd#ppl_PplElectricUtilitiesCorpMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_73eda3bc-9b2d-440c-a8b8-001fa51bbe54" xlink:to="loc_ppl_PplElectricUtilitiesCorpMember_4c36aa47-3cda-41be-86f4-d67468d15110" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_a753a68a-62f9-4ff4-ac7c-3af66528ee58" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_73eda3bc-9b2d-440c-a8b8-001fa51bbe54" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_a753a68a-62f9-4ff4-ac7c-3af66528ee58" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LouisvilleGasAndElectricCoMember_0f3cf500-0a62-40f2-beb7-d978df1da050" xlink:href="ppl-20210331.xsd#ppl_LouisvilleGasAndElectricCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_73eda3bc-9b2d-440c-a8b8-001fa51bbe54" xlink:to="loc_ppl_LouisvilleGasAndElectricCoMember_0f3cf500-0a62-40f2-beb7-d978df1da050" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_KentuckyUtilitiesCoMember_d58b0cb3-1b1b-47ac-9943-1f8c5f621e68" xlink:href="ppl-20210331.xsd#ppl_KentuckyUtilitiesCoMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_73eda3bc-9b2d-440c-a8b8-001fa51bbe54" xlink:to="loc_ppl_KentuckyUtilitiesCoMember_d58b0cb3-1b1b-47ac-9943-1f8c5f621e68" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_38add1ae-fd76-4af8-ac81-fe13c0fa4eff" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ppl_AssetRetirementObligationsTable_5b36841d-2802-4baa-b9cd-1fbcfc773ffd" xlink:to="loc_srt_RangeAxis_38add1ae-fd76-4af8-ac81-fe13c0fa4eff" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_38add1ae-fd76-4af8-ac81-fe13c0fa4eff_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_38add1ae-fd76-4af8-ac81-fe13c0fa4eff" xlink:to="loc_srt_RangeMember_38add1ae-fd76-4af8-ac81-fe13c0fa4eff_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_57f0e4dd-7783-49ef-aacd-e7f2be22c70d" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_38add1ae-fd76-4af8-ac81-fe13c0fa4eff" xlink:to="loc_srt_RangeMember_57f0e4dd-7783-49ef-aacd-e7f2be22c70d" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_d8a1cced-e5df-4f24-8493-3e7e0212929a" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_57f0e4dd-7783-49ef-aacd-e7f2be22c70d" xlink:to="loc_srt_MinimumMember_d8a1cced-e5df-4f24-8493-3e7e0212929a" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_d26f395e-ff1a-44a1-a0b7-6601b023b19b" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_57f0e4dd-7783-49ef-aacd-e7f2be22c70d" xlink:to="loc_srt_MaximumMember_d26f395e-ff1a-44a1-a0b7-6601b023b19b" xlink:type="arc" order="1"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/AccumulatedOtherComprehensiveIncomeLoss" xlink:type="simple" xlink:href="ppl-20210331.xsd#AccumulatedOtherComprehensiveIncomeLoss"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AccumulatedOtherComprehensiveIncomeLoss" xlink:type="extended" id="i5a604a2bf21749d8aa68cc338effe85b_AccumulatedOtherComprehensiveIncomeLoss">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_132acdd8-87d3-4fa4-9096-a5c058c706b9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AccumulatedOtherComprehensiveIncomeTextBlock_3a1b35a7-9cea-4486-bd0c-5f9dd7283902" xlink:href="ppl-20210331.xsd#ppl_AccumulatedOtherComprehensiveIncomeTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_132acdd8-87d3-4fa4-9096-a5c058c706b9" xlink:to="loc_ppl_AccumulatedOtherComprehensiveIncomeTextBlock_3a1b35a7-9cea-4486-bd0c-5f9dd7283902" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_49bf61bb-42ee-4ea4-b428-7e0ef0879e98" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_132acdd8-87d3-4fa4-9096-a5c058c706b9" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_49bf61bb-42ee-4ea4-b428-7e0ef0879e98" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_21c7496c-e783-4e32-93fb-a26b460f8d45" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_49bf61bb-42ee-4ea4-b428-7e0ef0879e98" xlink:to="loc_dei_LegalEntityAxis_21c7496c-e783-4e32-93fb-a26b460f8d45" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_21c7496c-e783-4e32-93fb-a26b460f8d45_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_21c7496c-e783-4e32-93fb-a26b460f8d45" xlink:to="loc_dei_EntityDomain_21c7496c-e783-4e32-93fb-a26b460f8d45_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_ed3b76a5-6017-429f-91b8-b3de0610c4d3" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_21c7496c-e783-4e32-93fb-a26b460f8d45" xlink:to="loc_dei_EntityDomain_ed3b76a5-6017-429f-91b8-b3de0610c4d3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_0ec7c1de-e3ea-4a62-bb8f-268c26a6eaf3" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_ed3b76a5-6017-429f-91b8-b3de0610c4d3" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_0ec7c1de-e3ea-4a62-bb8f-268c26a6eaf3" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/AccumulatedOtherComprehensiveIncomeLossTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#AccumulatedOtherComprehensiveIncomeLossTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AccumulatedOtherComprehensiveIncomeLossTables" xlink:type="extended" id="i4b1b8e28612f4a149620b44e2ed941b8_AccumulatedOtherComprehensiveIncomeLossTables">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_a1499fab-c315-412a-bc88-5095c35426ea" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_ed690965-7888-4e36-8238-21a1bf1dfdbe" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_a1499fab-c315-412a-bc88-5095c35426ea" xlink:to="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_ed690965-7888-4e36-8238-21a1bf1dfdbe" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_90198285-decd-48a2-9875-195270a68f61" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_a1499fab-c315-412a-bc88-5095c35426ea" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_90198285-decd-48a2-9875-195270a68f61" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_4333d7c6-6c8a-4a71-9604-6663fbc774b6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_a1499fab-c315-412a-bc88-5095c35426ea" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_4333d7c6-6c8a-4a71-9604-6663fbc774b6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_943bb2b1-da0a-41f6-abbc-fb9ea103f72f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_4333d7c6-6c8a-4a71-9604-6663fbc774b6" xlink:to="loc_dei_LegalEntityAxis_943bb2b1-da0a-41f6-abbc-fb9ea103f72f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_943bb2b1-da0a-41f6-abbc-fb9ea103f72f_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_943bb2b1-da0a-41f6-abbc-fb9ea103f72f" xlink:to="loc_dei_EntityDomain_943bb2b1-da0a-41f6-abbc-fb9ea103f72f_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_b97983be-8c40-4704-a04e-df57f7381649" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_943bb2b1-da0a-41f6-abbc-fb9ea103f72f" xlink:to="loc_dei_EntityDomain_b97983be-8c40-4704-a04e-df57f7381649" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_7892538d-920e-4074-a20a-f494dc25ef76" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_b97983be-8c40-4704-a04e-df57f7381649" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_7892538d-920e-4074-a20a-f494dc25ef76" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/AccumulatedOtherComprehensiveIncomeLossAftertaxChangesbyComponentDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#AccumulatedOtherComprehensiveIncomeLossAftertaxChangesbyComponentDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AccumulatedOtherComprehensiveIncomeLossAftertaxChangesbyComponentDetails" xlink:type="extended" id="ica212dbcf74841538a7e05d7dbfb9b26_AccumulatedOtherComprehensiveIncomeLossAftertaxChangesbyComponentDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_a751fe18-c72b-4d7d-812c-f1d020361896" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_fc61d0cb-108e-4f00-8e13-9db17bebe445" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_a751fe18-c72b-4d7d-812c-f1d020361896" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_fc61d0cb-108e-4f00-8e13-9db17bebe445" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_ee2f3948-165d-441c-87b5-a6782db89e76" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_a751fe18-c72b-4d7d-812c-f1d020361896" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_ee2f3948-165d-441c-87b5-a6782db89e76" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_bb361d17-dfc2-45a7-9456-d2d3cc430217" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_a751fe18-c72b-4d7d-812c-f1d020361896" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_bb361d17-dfc2-45a7-9456-d2d3cc430217" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_18394431-4eab-40fb-992d-cea034c41ad0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_a751fe18-c72b-4d7d-812c-f1d020361896" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_18394431-4eab-40fb-992d-cea034c41ad0" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_6cad9172-7ddc-4459-9376-466a6ea2cce6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_6cef6560-9317-4848-8063-b908a2115a63" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_a751fe18-c72b-4d7d-812c-f1d020361896" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_6cef6560-9317-4848-8063-b908a2115a63" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_f10c73bc-2ece-4bcc-b4d3-dda1b34503f2" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_6cef6560-9317-4848-8063-b908a2115a63" xlink:to="loc_dei_LegalEntityAxis_f10c73bc-2ece-4bcc-b4d3-dda1b34503f2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_f10c73bc-2ece-4bcc-b4d3-dda1b34503f2_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_f10c73bc-2ece-4bcc-b4d3-dda1b34503f2" xlink:to="loc_dei_EntityDomain_f10c73bc-2ece-4bcc-b4d3-dda1b34503f2_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_67f5d46a-5255-4e54-af2c-820785bd0482" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_f10c73bc-2ece-4bcc-b4d3-dda1b34503f2" xlink:to="loc_dei_EntityDomain_67f5d46a-5255-4e54-af2c-820785bd0482" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_61c8aad0-a40a-4538-8157-481e31af5532" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_67f5d46a-5255-4e54-af2c-820785bd0482" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_61c8aad0-a40a-4538-8157-481e31af5532" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_30b72c94-c5e1-46b0-8fcb-b470608a225e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_6cef6560-9317-4848-8063-b908a2115a63" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_30b72c94-c5e1-46b0-8fcb-b470608a225e" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_30b72c94-c5e1-46b0-8fcb-b470608a225e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_30b72c94-c5e1-46b0-8fcb-b470608a225e" xlink:to="loc_us-gaap_EquityComponentDomain_30b72c94-c5e1-46b0-8fcb-b470608a225e_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_5e0931a6-7280-42af-ae99-1e37d2de82f9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_30b72c94-c5e1-46b0-8fcb-b470608a225e" xlink:to="loc_us-gaap_EquityComponentDomain_5e0931a6-7280-42af-ae99-1e37d2de82f9" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_489ab41a-3cfc-4f14-920a-7e35e8411412" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedTranslationAdjustmentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_5e0931a6-7280-42af-ae99-1e37d2de82f9" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_489ab41a-3cfc-4f14-920a-7e35e8411412" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_0508c823-9bfd-452f-bb02-8c224a43044f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_5e0931a6-7280-42af-ae99-1e37d2de82f9" xlink:to="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_0508c823-9bfd-452f-bb02-8c224a43044f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AccumulatedDefinedBenefitPlansPriorServiceCostsMember_239e2bea-c190-4670-83ef-30caa997fdb6" xlink:href="ppl-20210331.xsd#ppl_AccumulatedDefinedBenefitPlansPriorServiceCostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_5e0931a6-7280-42af-ae99-1e37d2de82f9" xlink:to="loc_ppl_AccumulatedDefinedBenefitPlansPriorServiceCostsMember_239e2bea-c190-4670-83ef-30caa997fdb6" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AccumulatedDefinedBenefitPlansActuarialGainLossMember_1661245d-4e31-4244-ab39-40ffe3e76ce3" xlink:href="ppl-20210331.xsd#ppl_AccumulatedDefinedBenefitPlansActuarialGainLossMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_5e0931a6-7280-42af-ae99-1e37d2de82f9" xlink:to="loc_ppl_AccumulatedDefinedBenefitPlansActuarialGainLossMember_1661245d-4e31-4244-ab39-40ffe3e76ce3" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AccumulatedDefinedBenefitPlansNetMember_92e334c8-2434-4e53-9263-5f8025a8bcbe" xlink:href="ppl-20210331.xsd#ppl_AccumulatedDefinedBenefitPlansNetMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_5e0931a6-7280-42af-ae99-1e37d2de82f9" xlink:to="loc_ppl_AccumulatedDefinedBenefitPlansNetMember_92e334c8-2434-4e53-9263-5f8025a8bcbe" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_a36fa9bc-18c7-42b7-a1a7-500393c8ab2d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_6cef6560-9317-4848-8063-b908a2115a63" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_a36fa9bc-18c7-42b7-a1a7-500393c8ab2d" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_a36fa9bc-18c7-42b7-a1a7-500393c8ab2d_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_a36fa9bc-18c7-42b7-a1a7-500393c8ab2d" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_a36fa9bc-18c7-42b7-a1a7-500393c8ab2d_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_85c46417-fb6d-420c-847a-9a82385bb27b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_a36fa9bc-18c7-42b7-a1a7-500393c8ab2d" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_85c46417-fb6d-420c-847a-9a82385bb27b" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_WPDMember_fc8b886d-ef5f-4e99-b83a-18050991128e" xlink:href="ppl-20210331.xsd#ppl_WPDMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_85c46417-fb6d-420c-847a-9a82385bb27b" xlink:to="loc_ppl_WPDMember_fc8b886d-ef5f-4e99-b83a-18050991128e" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/AccumulatedOtherComprehensiveIncomeLossIncomeExpenseEffectofReclassificationsDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#AccumulatedOtherComprehensiveIncomeLossIncomeExpenseEffectofReclassificationsDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/AccumulatedOtherComprehensiveIncomeLossIncomeExpenseEffectofReclassificationsDetails" xlink:type="extended" id="if3e986fd649c4b7c8d466fda459b5b0a_AccumulatedOtherComprehensiveIncomeLossIncomeExpenseEffectofReclassificationsDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_d81774e1-9232-4dc5-9511-cd43afa22bb1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_c4f83be6-5413-4fe7-8034-e63f5ebe40eb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_d81774e1-9232-4dc5-9511-cd43afa22bb1" xlink:to="loc_us-gaap_InterestExpense_c4f83be6-5413-4fe7-8034-e63f5ebe40eb" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_3b2b12d5-1d0d-4333-8299-c1fb9ab6dfe2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_d81774e1-9232-4dc5-9511-cd43afa22bb1" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_3b2b12d5-1d0d-4333-8299-c1fb9ab6dfe2" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_4705f140-9453-4500-a06b-5ce37783eccd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_d81774e1-9232-4dc5-9511-cd43afa22bb1" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_4705f140-9453-4500-a06b-5ce37783eccd" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_34fa0b83-a698-4c2a-8c94-62dd4ee4c4af" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_d81774e1-9232-4dc5-9511-cd43afa22bb1" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_34fa0b83-a698-4c2a-8c94-62dd4ee4c4af" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_9daee8a7-f8ab-4b7c-aaf3-c3dd400c2b06" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_d81774e1-9232-4dc5-9511-cd43afa22bb1" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_9daee8a7-f8ab-4b7c-aaf3-c3dd400c2b06" xlink:type="arc" order="4"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_78ae636a-8bfb-439c-9820-5e5e71085eff" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_d81774e1-9232-4dc5-9511-cd43afa22bb1" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_78ae636a-8bfb-439c-9820-5e5e71085eff" xlink:type="arc" order="5"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_b824a6f4-1065-45b4-bf14-32c99761dbde" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_d81774e1-9232-4dc5-9511-cd43afa22bb1" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_b824a6f4-1065-45b4-bf14-32c99761dbde" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_c66f27c7-6a51-4ea5-87f9-b448692256ef" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_b824a6f4-1065-45b4-bf14-32c99761dbde" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_c66f27c7-6a51-4ea5-87f9-b448692256ef" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_c66f27c7-6a51-4ea5-87f9-b448692256ef_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_c66f27c7-6a51-4ea5-87f9-b448692256ef" xlink:to="loc_us-gaap_EquityComponentDomain_c66f27c7-6a51-4ea5-87f9-b448692256ef_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_a13f4233-c23e-4eb7-aa7b-b5969989a1e3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_c66f27c7-6a51-4ea5-87f9-b448692256ef" xlink:to="loc_us-gaap_EquityComponentDomain_a13f4233-c23e-4eb7-aa7b-b5969989a1e3" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_6c499533-8766-4e17-a969-c574cba6cf54" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a13f4233-c23e-4eb7-aa7b-b5969989a1e3" xlink:to="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_6c499533-8766-4e17-a969-c574cba6cf54" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_e2364a6b-d3d5-4057-a3d6-9639ff0c7c44" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a13f4233-c23e-4eb7-aa7b-b5969989a1e3" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_e2364a6b-d3d5-4057-a3d6-9639ff0c7c44" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_2b547fa9-e15c-4aa7-a495-d52aeda2da33" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_b824a6f4-1065-45b4-bf14-32c99761dbde" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_2b547fa9-e15c-4aa7-a495-d52aeda2da33" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_2b547fa9-e15c-4aa7-a495-d52aeda2da33_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_2b547fa9-e15c-4aa7-a495-d52aeda2da33" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_2b547fa9-e15c-4aa7-a495-d52aeda2da33_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_6ff92fc1-1181-4c21-8a46-aa9f76808ddf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_2b547fa9-e15c-4aa7-a495-d52aeda2da33" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_6ff92fc1-1181-4c21-8a46-aa9f76808ddf" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_81113999-e491-4cdb-a71f-e8bae4ac40a4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestRateSwapMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_6ff92fc1-1181-4c21-8a46-aa9f76808ddf" xlink:to="loc_us-gaap_InterestRateSwapMember_81113999-e491-4cdb-a71f-e8bae4ac40a4" xlink:type="arc" order="0"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_d340aed6-bb1d-438c-82ef-63b0d7e9fbbe" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_6ff92fc1-1181-4c21-8a46-aa9f76808ddf" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_d340aed6-bb1d-438c-82ef-63b0d7e9fbbe" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AccumulatedDefinedBenefitPlansPriorServiceCostsMember_82c80ab7-3639-4918-b77d-9f85d2e4cfac" xlink:href="ppl-20210331.xsd#ppl_AccumulatedDefinedBenefitPlansPriorServiceCostsMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_6ff92fc1-1181-4c21-8a46-aa9f76808ddf" xlink:to="loc_ppl_AccumulatedDefinedBenefitPlansPriorServiceCostsMember_82c80ab7-3639-4918-b77d-9f85d2e4cfac" xlink:type="arc" order="2"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_AccumulatedDefinedBenefitPlansActuarialGainLossMember_cd58d411-532c-4a1a-a4d3-14c7511c95cf" xlink:href="ppl-20210331.xsd#ppl_AccumulatedDefinedBenefitPlansActuarialGainLossMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_6ff92fc1-1181-4c21-8a46-aa9f76808ddf" xlink:to="loc_ppl_AccumulatedDefinedBenefitPlansActuarialGainLossMember_cd58d411-532c-4a1a-a4d3-14c7511c95cf" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_20d918a7-50b1-4702-9a04-1e2e75865a26" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_b824a6f4-1065-45b4-bf14-32c99761dbde" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_20d918a7-50b1-4702-9a04-1e2e75865a26" xlink:type="arc" order="3"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_20d918a7-50b1-4702-9a04-1e2e75865a26_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_20d918a7-50b1-4702-9a04-1e2e75865a26" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_20d918a7-50b1-4702-9a04-1e2e75865a26_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_a65703a2-53d3-4493-9d8f-1e5917d9a33a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_20d918a7-50b1-4702-9a04-1e2e75865a26" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_a65703a2-53d3-4493-9d8f-1e5917d9a33a" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_e5fd0a07-d93b-4f67-92c8-b97aa7290bc9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_a65703a2-53d3-4493-9d8f-1e5917d9a33a" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_e5fd0a07-d93b-4f67-92c8-b97aa7290bc9" xlink:type="arc" order="0"/>
</link:definitionLink>
<link:roleRef roleURI="http://www.pplelectric.com/role/SubsequentEvents" xlink:type="simple" xlink:href="ppl-20210331.xsd#SubsequentEvents"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/SubsequentEvents" xlink:type="extended" id="i31152d5889ba463c9a1cc920205cad21_SubsequentEvents"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/SubsequentEventsTables" xlink:type="simple" xlink:href="ppl-20210331.xsd#SubsequentEventsTables"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/SubsequentEventsTables" xlink:type="extended" id="i97c0d7f6e524420ba6be9dc447980d1f_SubsequentEventsTables"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/SubsequentEventsDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#SubsequentEventsDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/SubsequentEventsDetails" xlink:type="extended" id="i3344c1e00a434c7aa1060731202eb094_SubsequentEventsDetails"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/NewAccountingGuidancePendingAdoption" xlink:type="simple" xlink:href="ppl-20210331.xsd#NewAccountingGuidancePendingAdoption"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/NewAccountingGuidancePendingAdoption" xlink:type="extended" id="i0b61ed475bb14209bc928ff841a89b1e_NewAccountingGuidancePendingAdoption"/>
<link:roleRef roleURI="http://www.pplelectric.com/role/NewAccountingGuidancePendingAdoptionNewAccountingGuidancePendingAdoptionDetails" xlink:type="simple" xlink:href="ppl-20210331.xsd#NewAccountingGuidancePendingAdoptionNewAccountingGuidancePendingAdoptionDetails"/>
<link:definitionLink xlink:role="http://www.pplelectric.com/role/NewAccountingGuidancePendingAdoptionNewAccountingGuidancePendingAdoptionDetails" xlink:type="extended" id="i23f70bdfec1d430482d3aa61eedc1af8_NewAccountingGuidancePendingAdoptionNewAccountingGuidancePendingAdoptionDetails">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_d9c76ec9-adb2-4b0a-9f19-cc981c4292a5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_18842332-d0b4-4520-8bb8-d9e3777fabeb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_d9c76ec9-adb2-4b0a-9f19-cc981c4292a5" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_18842332-d0b4-4520-8bb8-d9e3777fabeb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_6b30da33-195f-419b-8918-d51fd3d5532f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_18842332-d0b4-4520-8bb8-d9e3777fabeb" xlink:to="loc_dei_LegalEntityAxis_6b30da33-195f-419b-8918-d51fd3d5532f" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_6b30da33-195f-419b-8918-d51fd3d5532f_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_6b30da33-195f-419b-8918-d51fd3d5532f" xlink:to="loc_dei_EntityDomain_6b30da33-195f-419b-8918-d51fd3d5532f_default" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_7765ab3d-4822-4935-b134-c9f36fc18ab0" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_6b30da33-195f-419b-8918-d51fd3d5532f" xlink:to="loc_dei_EntityDomain_7765ab3d-4822-4935-b134-c9f36fc18ab0" xlink:type="arc" order="1"/>
<link:loc xlink:type="locator" xlink:label="loc_ppl_LGAndEAndKUEnergyLLCMember_fb041a4d-8e5c-4cfe-abb4-11003e67cdab" xlink:href="ppl-20210331.xsd#ppl_LGAndEAndKUEnergyLLCMember"/>
<link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_7765ab3d-4822-4935-b134-c9f36fc18ab0" xlink:to="loc_ppl_LGAndEAndKUEnergyLLCMember_fb041a4d-8e5c-4cfe-abb4-11003e67cdab" xlink:type="arc" order="0"/>
</link:definitionLink>
</link:linkbase>

5 Subsequent Filings that Reference this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 2/16/24  PPL Corp.                         10-K       12/31/23  135:50M
 2/17/23  PPL Corp.                         10-K       12/31/22  139:53M
 2/18/22  PPL Corp.                         10-K       12/31/21  146:52M
 6/22/21  PPL Electric Utilities Corp.      424B2                  1:652K                                   Donnelley … Solutions/FA
 6/21/21  PPL Electric Utilities Corp.      424B5                  1:652K                                   Donnelley … Solutions/FA

2 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 3/18/21  PPL Corp.                         8-K:1,2,7,9 3/17/21   15:11M                                    Donnelley … Solutions/FA
 3/04/21  PPL Corp.                         8-K:1,2,9   2/26/21   13:27M
↑Top
Filing Submission 0000922224-21-000021   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
About — Privacy — Redactions — Help — Thu., May 9, 10:32:56.2am ET