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Duke Energy Corp, et al. – ‘10-Q’ for 9/30/19 – ‘EX-101.LAB’

On:  Friday, 11/8/19, at 11:23am ET   ·   For:  9/30/19   ·   Accession #:  1326160-19-229   ·   File #s:  1-01232, 1-03274, 1-03382, 1-03543, 1-04928, 1-06196, 1-15929, 1-32853

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

11/08/19  Duke Energy Corp                  10-Q        9/30/19  149:49M
          Duke Energy Ohio, Inc.
          Duke Energy Florida, LLC.
          Duke Energy Progress, LLC.
          Duke Energy Indiana, LLC
          Duke Energy Carolinas, LLC
          Piedmont Natural Gas Co Inc
          Progress Energy Inc

Quarterly Report   —   Form 10-Q   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   6.40M 
 2: EX-31.1.1   Certification of Chief Executive Officer            HTML     45K 
 3: EX-31.1.2   Certification of Chief Executive Officer            HTML     45K 
 4: EX-31.1.3   Certification of Chief Executive Officer            HTML     45K 
 5: EX-31.1.4   Certification of Chief Executive Officer            HTML     45K 
 6: EX-31.1.5   Certification of Chief Executive Officer            HTML     45K 
 7: EX-31.1.6   Certification of Chief Executive Officer            HTML     45K 
 8: EX-31.1.7   Certification of Chief Executive Officer            HTML     45K 
 9: EX-31.1.8   Certification of Chief Executive Officer            HTML     45K 
10: EX-31.2.1   Certification of Chief Financial Officer            HTML     45K 
11: EX-31.2.2   Certification of Chief Financial Officer            HTML     45K 
12: EX-31.2.3   Certification of Chief Financial Officer            HTML     45K 
13: EX-31.2.4   Certification of Chief Financial Officer            HTML     45K 
14: EX-31.2.5   Certification of Chief Financial Officer            HTML     45K 
15: EX-31.2.6   Certification of Chief Financial Officer            HTML     45K 
16: EX-31.2.7   Certification of Chief Financial Officer            HTML     45K 
17: EX-31.2.8   Certification of Chief Financial Officer            HTML     45K 
18: EX-32.1.1   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
19: EX-32.1.2   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
20: EX-32.1.3   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
21: EX-32.1.4   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
22: EX-32.1.5   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
23: EX-32.1.6   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
24: EX-32.1.7   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
25: EX-32.1.8   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
26: EX-32.2.1   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
27: EX-32.2.2   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
28: EX-32.2.3   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
29: EX-32.2.4   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
30: EX-32.2.5   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
31: EX-32.2.6   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
32: EX-32.2.7   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
33: EX-32.2.8   Certification Pursuant to 18 U.S.C. Section 1350    HTML     41K 
66: R1          Cover Page                                          HTML    156K 
105: R2          Condensed Consolidated Statements of Operations     HTML    259K  
                and Comprehensive Income                                         
147: R3          Condensed Consolidated Statements of Comprehensive  HTML     76K  
                Income                                                           
79: R4          Condensed Consolidated Balance Sheets               HTML    323K 
65: R5          Condensed Consolidated Balance Sheets               HTML    120K 
                (Parenthetical)                                                  
103: R6          Condensed Consolidated Statements of Cash Flows     HTML    306K  
146: R7          Condensed Consolidated Statements of Changes in     HTML    283K  
                Equity                                                           
81: R8          Condensed Consolidated Statements of Changes in     HTML     44K 
                Equity (Parenthetical)                                           
61: R9          Organization and Basis of Presentation              HTML    251K 
58: R10         Business Segments                                   HTML    347K 
77: R11         Regulatory Matters                                  HTML    218K 
148: R12         Commitments and Contingencies                       HTML    168K  
110: R13         Leases                                              HTML   1.24M  
59: R14         Debt and Credit Facilities                          HTML    245K 
78: R15         Asset Retirement Obligations                        HTML    155K 
149: R16         Goodwill                                            HTML     62K  
111: R17         Related Party Transactions                          HTML    167K  
60: R18         Derivatives and Hedging                             HTML    831K 
76: R19         Investments in Debt and Equity Securities           HTML    566K 
123: R20         Fair Value Measurements                             HTML    399K  
112: R21         Variable Interest Entities                          HTML    284K  
40: R22         Revenue                                             HTML    507K 
85: R23         Stockholders' Equity                                HTML     98K 
124: R24         Employee Benefit Plans                              HTML    282K  
113: R25         Income Taxes                                        HTML     74K  
41: R26         Subsequent Events                                   HTML     41K 
86: R27         Organization and Basis of Presentation (Policy)     HTML     93K 
122: R28         Organization and Basis of Presentation (Tables)     HTML    165K  
114: R29         Business Segments (Tables)                          HTML    345K  
109: R30         Regulatory Matters (Tables)                         HTML     58K  
144: R31         Commitments and Contingencies (Table)               HTML    146K  
83: R32         Leases (Tables)                                     HTML    653K 
64: R33         Debt and Credit Facilities (Tables)                 HTML    249K 
107: R34         Asset Retirement Obligations (Tables)               HTML    157K  
141: R35         Goodwill (Tables)                                   HTML     59K  
80: R36         Related Party Transactions (Tables)                 HTML    165K 
62: R37         Derivatives and Hedging (Tables)                    HTML   1.06M 
104: R38         Investments in Debt and Equity Securities (Tables)  HTML    964K  
145: R39         Fair Value Measurements (Tables)                    HTML    413K  
121: R40         Variable Interest Entities (Tables)                 HTML    283K  
130: R41         Revenue (Tables)                                    HTML    506K  
88: R42         Stockholders' Equity (Tables)                       HTML     78K 
43: R43         Employee Benefit Plans (Tables)                     HTML    279K 
120: R44         Income Taxes (Tables)                               HTML     68K  
129: R45         Organization and Basis of Presentation (Narrative)  HTML     56K  
                (Details)                                                        
87: R46         Organization and Basis of Presentation (Schedule    HTML     65K 
                of Cash and Cash Equivalents) (Details)                          
42: R47         Organization and Basis of Presentation (Schedule    HTML     83K 
                of Inventory) (Details)                                          
119: R48         Business Segments (Narrative) (Details)             HTML     81K  
131: R49         Business Segments (Business Segment Data)           HTML    124K  
                (Details)                                                        
138: R50         Regulatory Matters (Narrative) (Details)            HTML   1.03M  
99: R51         Regulatory Matters (Schedule of Net Carrying Value  HTML     60K 
                Of Facilities and Megawatt Capacity) (Details)                   
50: R52         Commitments and Contingencies (Narrative)           HTML     95K 
                (Details)                                                        
67: R53         Commitments and Contingencies (Schedule of          HTML     75K 
                Environmental Loss Contingencies) (Details)                      
139: R54         Commitments and Contingencies (Schedule of Legal    HTML     52K  
                Reserves) (Details)                                              
100: R55         Leases (Operating Lease Right-of-use Assets and     HTML     65K  
                Liabilities) (Details)                                           
51: R56         Leases (Lease Costs) (Details)                      HTML    106K 
68: R57         Leases (Rent Expense) (Details)                     HTML     55K 
137: R58         Leases (Operating Lease Maturities) (Details)       HTML    136K  
102: R59         Leases (Finance Lease Maturities) (Details)         HTML    127K  
45: R60         Leases (Supplemental Financial Information)         HTML    147K 
                (Details)                                                        
92: R61         Leases (Narrative) (Details)                        HTML     48K 
126: R62         Debt and Credit Facilities (Narrative) (Details)    HTML     66K  
116: R63         Debt and Credit Facilities (Summary of Debt         HTML    123K  
                Issuances) (Details)                                             
46: R64         Debt and Credit Facilities (Summary of Current      HTML     86K 
                Maturities of Long-term Debt) (Details)                          
93: R65         Debt and Credit Facilities (Schedule of Line of     HTML     78K 
                Credit Facilities) (Details)                                     
127: R66         Debt and Credit Facilities (Schedule of Other       HTML     58K  
                Credit Facilities) (Details)                                     
117: R67         Asset Retirement Obligations (ARO by Category)      HTML     90K  
                (Details)                                                        
49: R68         Asset Retirement Obligations (ARO Rollforward)      HTML     72K 
                (Details)                                                        
90: R69         Asset Retirement Obligations (NDTF Information)     HTML     48K 
                (Details)                                                        
72: R70         Goodwill (Rollforward of Goodwill) (Details)        HTML     55K 
56: R71         Goodwill (Narrative) (Details)                      HTML     58K 
97: R72         Related Party Transactions (Other Revenue and       HTML     91K 
                Expense) (Details)                                               
135: R73         Related Party Transactions (Intercompany Income     HTML     62K  
                Taxes) (Details)                                                 
71: R74         Derivatives and Hedging (Notional Amounts of        HTML     86K 
                Derivative Instruments) (Details)                                
55: R75         Derivatives and Hedging (Location and Fair Value    HTML    177K 
                Amounts of Derivatives Reflected in the Condensed                
                Consolidated Balance Sheets) (Details)                           
96: R76         Derivatives and Hedging (Schedule of Offsetting     HTML     86K 
                Assets) (Details)                                                
134: R77         Derivatives and Hedging (Schedule of Offsetting     HTML     89K  
                Liabilities) (Details)                                           
74: R78         Derivatives and Hedging (Derivative Instruments     HTML     53K 
                with Credit-Risk Related Contingent Features and                 
                Cash Collateral) (Details)                                       
52: R79         Derivatives and Hedging (Narrative) (Details)       HTML     45K 
73: R80         Investments in Debt and Equity Securities (All      HTML    105K 
                Debt and Equity Securities Through OCI and FV-NI -               
                ASU 2016-01) (Details)                                           
57: R81         Investments in Debt and Equity Securities (Equity   HTML     83K 
                Securities, FV-NI - ASU 2016-01) (Details)                       
98: R82         Investments in Debt Securities and Equity           HTML    159K 
                Securities (Available-for-sale, OCI - ASU 2016-01)               
                (Details)                                                        
136: R83         Investments in Debt and Equity Securities           HTML    206K  
                (Available-For-Sale Investments) (Details)                       
69: R84         Investments in Debt and Equity Securities           HTML     73K 
                (Maturities) (Details)                                           
54: R85         Fair Value Measurements (Fair Value Measurement     HTML    154K 
                Amounts for Assets and Liabilities) (Details)                    
95: R86         Fair Value Measurements (Reconciliation of Assets   HTML     71K 
                and Liabilities Measured At Fair Value On A                      
                Recurring Basis Using Unobservable Inputs)                       
                (Details)                                                        
133: R87         Fair Value Measurements (Quantitative Level 3 Fair  HTML     74K  
                Value Disclosures) (Details)                                     
75: R88         Fair Value Measurements (Other Fair Value           HTML     69K 
                Disclosure) (Details)                                            
53: R89         Variable Interest Entities (Narrative) (Details)    HTML     73K 
44: R90         Variable Interest Entities (Schedule of Accounts    HTML     68K 
                Receivable Securitizations) (Details)                            
91: R91         Variable Interest Entities (Schedule of             HTML    105K 
                Consolidated VIEs) (Details)                                     
125: R92         Variable Interest Entities (Schedule of             HTML     88K  
                Non-Consolidated VIEs) (Details)                                 
115: R93         Variable Interest Entities (Pipeline Investments)   HTML     56K  
                (Details)                                                        
47: R94         Variable Interest Entities (Receivables Sold)       HTML     54K 
                (Details)                                                        
94: R95         Variable Interest Entities (Sales and Cash Flows)   HTML     60K 
                (Details)                                                        
128: R96         Revenue (Remaining Performance Obligations)         HTML    103K  
                (Details)                                                        
118: R97         Revenue (Disaggregation of Revenue) (Details)       HTML    168K  
48: R98         Revenue (Unbilled Revenues) (Details)               HTML     59K 
89: R99         Stockholders' Equity (Earnings Per Share Data)      HTML     75K 
                (Details)                                                        
106: R100        Stockholders' Equity (Equity Securities Offering)   HTML     80K  
                (Details)                                                        
140: R101        Stockholders' Equity (Preferred Stock) (Details)    HTML     78K  
82: R102        Employee Benefit Plans (Narrative) (Details)        HTML     67K 
63: R103        Employee Benefit Plans (Components of Net Periodic  HTML     90K 
                Pension Costs) (Details)                                         
108: R104        Employee Benefit Plans - Summary of Contributions   HTML     57K  
                (Details)                                                        
143: R105        Income Taxes (Effective Tax Rates) (Details)        HTML     60K  
84: R106        Income Taxes (Narrative) (Details)                  HTML     44K 
70: XML         IDEA XML File -- Filing Summary                      XML    251K 
132: XML         XBRL Instance -- duk-20190930x10q_htm                XML  18.23M  
142: EXCEL       IDEA Workbook of Financial Reports                  XLSX    230K  
35: EX-101.CAL  XBRL Calculations -- duk-20190930_cal                XML    393K 
36: EX-101.DEF  XBRL Definitions -- duk-20190930_def                 XML   2.41M 
37: EX-101.LAB  XBRL Labels -- duk-20190930_lab                      XML   3.05M 
38: EX-101.PRE  XBRL Presentations -- duk-20190930_pre               XML   2.56M 
34: EX-101.SCH  XBRL Schema -- duk-20190930                          XSD    335K 
101: JSON        XBRL Instance as JSON Data -- MetaLinks              620±   977K  
39: ZIP         XBRL Zipped Folder -- 0001326160-19-000229-xbrl      Zip   1.07M 


‘EX-101.LAB’   —   XBRL Labels — duk-20190930_lab


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<link:label id="lab_us-gaap_PublicUtilitiesDisclosureTextBlock_EE6EFC56DF30217594E08C379345817C_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesDisclosureTextBlock_EE6EFC56DF30217594E08C379345817C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Regulatory Matters </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesDisclosureTextBlock_EE6EFC56DF30217594E08C379345817C_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesDisclosureTextBlock_EE6EFC56DF30217594E08C379345817C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities Disclosure [Text Block] </link:label>
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<link:label id="lab_us-gaap_DebtDisclosureAbstract_900D980768542205529440F6B6D334DA_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureAbstract_900D980768542205529440F6B6D334DA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Disclosure [Abstract] </link:label>
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<link:label id="lab_us-gaap_UnsecuredDebtMember_BB4F83973B6D13C2987D40F6B6D73652_terseLabel_en-US" xlink:label="lab_us-gaap_UnsecuredDebtMember_BB4F83973B6D13C2987D40F6B6D73652" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Unsecured Debt [Member] </link:label>
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<link:label id="lab_duk_DukeEnergyCarolinasMember_E0A36D5381346F66C62240F6B6D84EB4_terseLabel_en-US" xlink:label="lab_duk_DukeEnergyCarolinasMember_E0A36D5381346F66C62240F6B6D84EB4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Duke Energy Carolinas [Member] </link:label>
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<link:loc xlink:href="duk-20190930.xsd#duk_PiedmontNaturalGasMember" xlink:label="loc_duk_PiedmontNaturalGasMember_B965C78C3E58AD01CB3F40F6B6D964D3" xlink:type="locator"/>
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<link:loc xlink:href="duk-20190930.xsd#duk_March2019DebtIssuanceDueMarch2022Member" xlink:label="loc_duk_March2019DebtIssuanceDueMarch2022Member_61BFD48A89BEC31323DE40F6B6DAE5A2" xlink:type="locator"/>
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<link:label id="lab_duk_PollutionControlBondsMember_3F144148683EB17EFE7240F6B6DD7DCD_terseLabel_en-US" xlink:label="lab_duk_PollutionControlBondsMember_3F144148683EB17EFE7240F6B6DD7DCD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Pollution Control Bonds [Member] </link:label>
<link:label id="lab_duk_PollutionControlBondsMember_3F144148683EB17EFE7240F6B6DD7DCD_label_en-US" xlink:label="lab_duk_PollutionControlBondsMember_3F144148683EB17EFE7240F6B6DD7DCD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Pollution Control Bonds [Member] </link:label>
<link:label id="lab_duk_PollutionControlBondsMember_3F144148683EB17EFE7240F6B6DD7DCD_documentation_en-US" xlink:label="lab_duk_PollutionControlBondsMember_3F144148683EB17EFE7240F6B6DD7DCD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Pollution Control Bonds [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PollutionControlBondsMember" xlink:label="loc_duk_PollutionControlBondsMember_3F144148683EB17EFE7240F6B6DD7DCD" xlink:type="locator"/>
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<link:label id="lab_duk_DebenturesDueOctober2019Member_FF735AE50204FC47F43C40F6B6DD030C_terseLabel_en-US" xlink:label="lab_duk_DebenturesDueOctober2019Member_FF735AE50204FC47F43C40F6B6DD030C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debentures Due October 2019 [Member] </link:label>
<link:label id="lab_duk_DebenturesDueOctober2019Member_FF735AE50204FC47F43C40F6B6DD030C_label_en-US" xlink:label="lab_duk_DebenturesDueOctober2019Member_FF735AE50204FC47F43C40F6B6DD030C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debentures Due October 2019 [Member] </link:label>
<link:label id="lab_duk_DebenturesDueOctober2019Member_FF735AE50204FC47F43C40F6B6DD030C_documentation_en-US" xlink:label="lab_duk_DebenturesDueOctober2019Member_FF735AE50204FC47F43C40F6B6DD030C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debentures Due October 2019 [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DebenturesDueOctober2019Member" xlink:label="loc_duk_DebenturesDueOctober2019Member_FF735AE50204FC47F43C40F6B6DD030C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentLineItems_507E598AF72BA077CE2840F6B6DD5A48_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_507E598AF72BA077CE2840F6B6DD5A48" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Line Items] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentLineItems_507E598AF72BA077CE2840F6B6DD5A48_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_507E598AF72BA077CE2840F6B6DD5A48" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Line Items] </link:label>
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<link:label id="lab_us-gaap_DebtInstrumentFaceAmount_2D2C573DA8DE536E8B4C40F6B6DDF925_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_2D2C573DA8DE536E8B4C40F6B6DDF925" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt issuances </link:label>
<link:label id="lab_us-gaap_DebtInstrumentFaceAmount_2D2C573DA8DE536E8B4C40F6B6DDF925_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_2D2C573DA8DE536E8B4C40F6B6DDF925" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Face Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_2D2C573DA8DE536E8B4C40F6B6DDF925" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_273005794181C75D9C8040F6B6DD6FB5_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_273005794181C75D9C8040F6B6DD6FB5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest rate </link:label>
<link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_273005794181C75D9C8040F6B6DD6FB5_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_273005794181C75D9C8040F6B6DD6FB5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Interest Rate, Stated Percentage </link:label>
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<link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_CD8851AF0E845A8AA05640F6B6DE7E3C_terseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_CD8851AF0E845A8AA05640F6B6DE7E3C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Repayments of long-term debt </link:label>
<link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_CD8851AF0E845A8AA05640F6B6DE7E3C_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_CD8851AF0E845A8AA05640F6B6DE7E3C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Repayments of Long-term Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_CD8851AF0E845A8AA05640F6B6DE7E3C" xlink:type="locator"/>
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<link:label id="lab_dei_CoverAbstract_5607E126B8B5771B2AA44A6BB92C39C9_label_en-US" xlink:label="lab_dei_CoverAbstract_5607E126B8B5771B2AA44A6BB92C39C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cover page. </link:label>
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<link:label id="lab_dei_DocumentInformationTable_3E50269B55F7F8535B574A6BB92C9EEA_terseLabel_en-US" xlink:label="lab_dei_DocumentInformationTable_3E50269B55F7F8535B574A6BB92C9EEA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Document Information [Table] </link:label>
<link:label id="lab_dei_DocumentInformationTable_3E50269B55F7F8535B574A6BB92C9EEA_label_en-US" xlink:label="lab_dei_DocumentInformationTable_3E50269B55F7F8535B574A6BB92C9EEA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Information [Table] </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable_3E50269B55F7F8535B574A6BB92C9EEA" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StatementClassOfStockAxis_C3AE4655248207176D344A6BB92CFE8D_terseLabel_en-US" xlink:label="lab_us-gaap_StatementClassOfStockAxis_C3AE4655248207176D344A6BB92CFE8D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Class of Stock [Axis] </link:label>
<link:label id="lab_us-gaap_StatementClassOfStockAxis_C3AE4655248207176D344A6BB92CFE8D_label_en-US" xlink:label="lab_us-gaap_StatementClassOfStockAxis_C3AE4655248207176D344A6BB92CFE8D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Class of Stock [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_C3AE4655248207176D344A6BB92CFE8D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ClassOfStockDomain_6A0213ED5CC3D83DA4E84A6BB92CD2E1_terseLabel_en-US" xlink:label="lab_us-gaap_ClassOfStockDomain_6A0213ED5CC3D83DA4E84A6BB92CD2E1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Class of Stock [Domain] </link:label>
<link:label id="lab_us-gaap_ClassOfStockDomain_6A0213ED5CC3D83DA4E84A6BB92CD2E1_label_en-US" xlink:label="lab_us-gaap_ClassOfStockDomain_6A0213ED5CC3D83DA4E84A6BB92CD2E1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Class of Stock [Domain] </link:label>
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<link:label id="lab_us-gaap_CommonStockMember_55DEE55172580DB509A24A6BB92CD31E_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockMember_55DEE55172580DB509A24A6BB92CD31E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Common Stock [Member] </link:label>
<link:label id="lab_us-gaap_CommonStockMember_55DEE55172580DB509A24A6BB92CD31E_label_en-US" xlink:label="lab_us-gaap_CommonStockMember_55DEE55172580DB509A24A6BB92CD31E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock [Member] </link:label>
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<link:label id="lab_duk_JuniorSubordinatedDebentures5.125CouponDueJanuary2073Member_620BEF65975975186FDE4A6BB92C27A1_terseLabel_en-US" xlink:label="lab_duk_JuniorSubordinatedDebentures5.125CouponDueJanuary2073Member_620BEF65975975186FDE4A6BB92C27A1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Junior Subordinated Debentures 5.125% Coupon Due January 2073 [Member] </link:label>
<link:label id="lab_duk_JuniorSubordinatedDebentures5.125CouponDueJanuary2073Member_620BEF65975975186FDE4A6BB92C27A1_label_en-US" xlink:label="lab_duk_JuniorSubordinatedDebentures5.125CouponDueJanuary2073Member_620BEF65975975186FDE4A6BB92C27A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Junior Subordinated Debentures 5.125% Coupon Due January 2073 [Member] </link:label>
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<link:label id="lab_duk_DepositaryShareMember_07CE77FAC01E50BC59E84A6BB92E5792_terseLabel_en-US" xlink:label="lab_duk_DepositaryShareMember_07CE77FAC01E50BC59E84A6BB92E5792" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Depositary Share [Member] </link:label>
<link:label id="lab_duk_DepositaryShareMember_07CE77FAC01E50BC59E84A6BB92E5792_label_en-US" xlink:label="lab_duk_DepositaryShareMember_07CE77FAC01E50BC59E84A6BB92E5792" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Depositary Share [Member] </link:label>
<link:label id="lab_duk_DepositaryShareMember_07CE77FAC01E50BC59E84A6BB92E5792_documentation_en-US" xlink:label="lab_duk_DepositaryShareMember_07CE77FAC01E50BC59E84A6BB92E5792" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Depositary Share [Member] </link:label>
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<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_7A0376733E79A3DAC3004A6BB932A03C" xlink:type="locator"/>
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<link:label id="lab_dei_AmendmentFlag_C2F0C3A14B69E09280DD4A6BB9326ACA_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag_C2F0C3A14B69E09280DD4A6BB9326ACA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amendment Flag </link:label>
<link:label id="lab_dei_AmendmentFlag_C2F0C3A14B69E09280DD4A6BB9326ACA_label_en-US" xlink:label="lab_dei_AmendmentFlag_C2F0C3A14B69E09280DD4A6BB9326ACA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amendment Flag </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_C2F0C3A14B69E09280DD4A6BB9326ACA" xlink:type="locator"/>
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<link:label id="lab_dei_EntityCommonStockSharesOutstanding_AABC12DE0F112F3CDBBA4A6BB93360AC_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_AABC12DE0F112F3CDBBA4A6BB93360AC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Common Stock, Shares Outstanding </link:label>
<link:label id="lab_dei_EntityCommonStockSharesOutstanding_AABC12DE0F112F3CDBBA4A6BB93360AC_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_AABC12DE0F112F3CDBBA4A6BB93360AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Common Stock, Shares Outstanding </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_AABC12DE0F112F3CDBBA4A6BB93360AC" xlink:type="locator"/>
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<link:label id="lab_dei_SecurityExchangeName_E4485A31B2C8B0C072994A6BB933795F_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName_E4485A31B2C8B0C072994A6BB933795F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Security Exchange Name </link:label>
<link:label id="lab_dei_SecurityExchangeName_E4485A31B2C8B0C072994A6BB933795F_label_en-US" xlink:label="lab_dei_SecurityExchangeName_E4485A31B2C8B0C072994A6BB933795F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Security Exchange Name </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName_E4485A31B2C8B0C072994A6BB933795F" xlink:type="locator"/>
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<link:label id="lab_dei_EntityEmergingGrowthCompany_33F3F38E0F5D6F9D32BF4A6BB93398E0_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany_33F3F38E0F5D6F9D32BF4A6BB93398E0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Emerging Growth Company </link:label>
<link:label id="lab_dei_EntityEmergingGrowthCompany_33F3F38E0F5D6F9D32BF4A6BB93398E0_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany_33F3F38E0F5D6F9D32BF4A6BB93398E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Emerging Growth Company </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_33F3F38E0F5D6F9D32BF4A6BB93398E0" xlink:type="locator"/>
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<link:label id="lab_dei_EntitySmallBusiness_FAE7D1BF96D436142F294A6BB93300C5_terseLabel_en-US" xlink:label="lab_dei_EntitySmallBusiness_FAE7D1BF96D436142F294A6BB93300C5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Small Business </link:label>
<link:label id="lab_dei_EntitySmallBusiness_FAE7D1BF96D436142F294A6BB93300C5_label_en-US" xlink:label="lab_dei_EntitySmallBusiness_FAE7D1BF96D436142F294A6BB93300C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Small Business </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntitySmallBusiness" xlink:label="loc_dei_EntitySmallBusiness_FAE7D1BF96D436142F294A6BB93300C5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntitySmallBusiness_FAE7D1BF96D436142F294A6BB93300C5" xlink:to="lab_dei_EntitySmallBusiness_FAE7D1BF96D436142F294A6BB93300C5" xlink:type="arc"/>
<link:label id="lab_dei_EntityTaxIdentificationNumber_9ADED37FB145771F8FB04A6BB9333365_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber_9ADED37FB145771F8FB04A6BB9333365" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Tax Identification Number </link:label>
<link:label id="lab_dei_EntityTaxIdentificationNumber_9ADED37FB145771F8FB04A6BB9333365_label_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber_9ADED37FB145771F8FB04A6BB9333365" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Tax Identification Number </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_dei_EntityTaxIdentificationNumber_9ADED37FB145771F8FB04A6BB9333365" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber_9ADED37FB145771F8FB04A6BB9333365" xlink:to="lab_dei_EntityTaxIdentificationNumber_9ADED37FB145771F8FB04A6BB9333365" xlink:type="arc"/>
<link:label id="lab_dei_EntityIncorporationStateCountryCode_DAFC963757472FEA79314A6BB933C176_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode_DAFC963757472FEA79314A6BB933C176" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Incorporation, State or Country Code </link:label>
<link:label id="lab_dei_EntityIncorporationStateCountryCode_DAFC963757472FEA79314A6BB933C176_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode_DAFC963757472FEA79314A6BB933C176" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Incorporation, State or Country Code </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode_DAFC963757472FEA79314A6BB933C176" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode_DAFC963757472FEA79314A6BB933C176" xlink:to="lab_dei_EntityIncorporationStateCountryCode_DAFC963757472FEA79314A6BB933C176" xlink:type="arc"/>
<link:label id="lab_dei_EntityAddressAddressLine1_8F5152AF3F8A9D32D2FC4A6BB9349B2D_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1_8F5152AF3F8A9D32D2FC4A6BB9349B2D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, Address Line One </link:label>
<link:label id="lab_dei_EntityAddressAddressLine1_8F5152AF3F8A9D32D2FC4A6BB9349B2D_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1_8F5152AF3F8A9D32D2FC4A6BB9349B2D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, Address Line One </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1_8F5152AF3F8A9D32D2FC4A6BB9349B2D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1_8F5152AF3F8A9D32D2FC4A6BB9349B2D" xlink:to="lab_dei_EntityAddressAddressLine1_8F5152AF3F8A9D32D2FC4A6BB9349B2D" xlink:type="arc"/>
<link:label id="lab_dei_EntityAddressCityOrTown_263D62FBBA67BB4019A64A6BB9347EA8_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown_263D62FBBA67BB4019A64A6BB9347EA8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, City or Town </link:label>
<link:label id="lab_dei_EntityAddressCityOrTown_263D62FBBA67BB4019A64A6BB9347EA8_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown_263D62FBBA67BB4019A64A6BB9347EA8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, City or Town </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown_263D62FBBA67BB4019A64A6BB9347EA8" xlink:type="locator"/>
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<link:label id="lab_dei_EntityAddressStateOrProvince_332611E9A5231EA374964A6BB934737D_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince_332611E9A5231EA374964A6BB934737D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, State or Province </link:label>
<link:label id="lab_dei_EntityAddressStateOrProvince_332611E9A5231EA374964A6BB934737D_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince_332611E9A5231EA374964A6BB934737D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, State or Province </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince_332611E9A5231EA374964A6BB934737D" xlink:type="locator"/>
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<link:label id="lab_dei_EntityAddressPostalZipCode_559A6FE0C55EBD0EEA254A6BB9342EE9_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode_559A6FE0C55EBD0EEA254A6BB9342EE9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, Postal Zip Code </link:label>
<link:label id="lab_dei_EntityAddressPostalZipCode_559A6FE0C55EBD0EEA254A6BB9342EE9_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode_559A6FE0C55EBD0EEA254A6BB9342EE9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, Postal Zip Code </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode_559A6FE0C55EBD0EEA254A6BB9342EE9" xlink:type="locator"/>
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<link:label id="lab_dei_CityAreaCode_A589CCE5124C096F98B54A6BB934B685_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode_A589CCE5124C096F98B54A6BB934B685" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> City Area Code </link:label>
<link:label id="lab_dei_CityAreaCode_A589CCE5124C096F98B54A6BB934B685_label_en-US" xlink:label="lab_dei_CityAreaCode_A589CCE5124C096F98B54A6BB934B685" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> City Area Code </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode_A589CCE5124C096F98B54A6BB934B685" xlink:type="locator"/>
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<link:label id="lab_dei_LocalPhoneNumber_FA658B803CA3ABCF408B4A6BB934E7A2_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber_FA658B803CA3ABCF408B4A6BB934E7A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Local Phone Number </link:label>
<link:label id="lab_dei_LocalPhoneNumber_FA658B803CA3ABCF408B4A6BB934E7A2_label_en-US" xlink:label="lab_dei_LocalPhoneNumber_FA658B803CA3ABCF408B4A6BB934E7A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Local Phone Number </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber_FA658B803CA3ABCF408B4A6BB934E7A2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_B50173042658574ED28EDF749C572952_terseLabel_en-US" xlink:label="lab_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_B50173042658574ED28EDF749C572952" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:label="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_B50173042658574ED28EDF749C572952" xlink:type="locator"/>
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<link:label id="lab_us-gaap_HedgingDesignationAxis_BCBBCCE5FB38BED81AE7DF749C592731_terseLabel_en-US" xlink:label="lab_us-gaap_HedgingDesignationAxis_BCBBCCE5FB38BED81AE7DF749C592731" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Hedging Designation [Axis] </link:label>
<link:label id="lab_us-gaap_HedgingDesignationAxis_BCBBCCE5FB38BED81AE7DF749C592731_label_en-US" xlink:label="lab_us-gaap_HedgingDesignationAxis_BCBBCCE5FB38BED81AE7DF749C592731" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Hedging Designation [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationAxis" xlink:label="loc_us-gaap_HedgingDesignationAxis_BCBBCCE5FB38BED81AE7DF749C592731" xlink:type="locator"/>
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<link:label id="lab_us-gaap_HedgingDesignationDomain_DC0F72ACE0CC5488AFA7DF749C5906F8_terseLabel_en-US" xlink:label="lab_us-gaap_HedgingDesignationDomain_DC0F72ACE0CC5488AFA7DF749C5906F8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Hedging Designation [Domain] </link:label>
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<link:label id="lab_us-gaap_NoncontrollingInterestMember_18530645F80568AEDFE0030B302B14B5_label_en-US" xlink:label="lab_us-gaap_NoncontrollingInterestMember_18530645F80568AEDFE0030B302B14B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest [Member] </link:label>
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<link:label id="lab_us-gaap_StatementLineItems_2F5FA7330A285127651E030B302B7465_terseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems_2F5FA7330A285127651E030B302B7465" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement [Line Items] </link:label>
<link:label id="lab_us-gaap_StatementLineItems_2F5FA7330A285127651E030B302B7465_label_en-US" xlink:label="lab_us-gaap_StatementLineItems_2F5FA7330A285127651E030B302B7465" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_2F5FA7330A285127651E030B302B7465" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems_2F5FA7330A285127651E030B302B7465" xlink:to="lab_us-gaap_StatementLineItems_2F5FA7330A285127651E030B302B7465" xlink:type="arc"/>
<link:label id="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_0F6CE17F52D508BD1CAC030B302B66D6_periodStartLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_0F6CE17F52D508BD1CAC030B302B66D6" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Beginning Balance </link:label>
<link:label id="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_0F6CE17F52D508BD1CAC030B302B66D6_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_0F6CE17F52D508BD1CAC030B302B66D6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_0F6CE17F52D508BD1CAC030B302B66D6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CommonStockSharesOutstanding_D2693F10F98E67E06D98030B302B7D10_periodStartLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_D2693F10F98E67E06D98030B302B7D10" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Beginning Balance, in shares </link:label>
<link:label id="lab_us-gaap_CommonStockSharesOutstanding_D2693F10F98E67E06D98030B302B7D10_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_D2693F10F98E67E06D98030B302B7D10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Shares, Outstanding </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_D2693F10F98E67E06D98030B302B7D10" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PreferredStockSharesOutstanding_CB270CD21827EA8A219B030B302B1BF2_periodStartLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding_CB270CD21827EA8A219B030B302B1BF2" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Beginning Balance, in shares </link:label>
<link:label id="lab_us-gaap_PreferredStockSharesOutstanding_CB270CD21827EA8A219B030B302B1BF2_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding_CB270CD21827EA8A219B030B302B1BF2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Shares Outstanding </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_CB270CD21827EA8A219B030B302B1BF2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_MembersEquity_29EF18D042A64FC7A47B030B302B3B0D_periodStartLabel_en-US" xlink:label="lab_us-gaap_MembersEquity_29EF18D042A64FC7A47B030B302B3B0D" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Beginning Balance (member's equity) </link:label>
<link:label id="lab_us-gaap_MembersEquity_29EF18D042A64FC7A47B030B302B3B0D_label_en-US" xlink:label="lab_us-gaap_MembersEquity_29EF18D042A64FC7A47B030B302B3B0D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Members' Equity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MembersEquity" xlink:label="loc_us-gaap_MembersEquity_29EF18D042A64FC7A47B030B302B3B0D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockholdersEquity_5010C43C461248A588EE030B302B5B96_periodStartLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity_5010C43C461248A588EE030B302B5B96" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Beginning Balance (parent) </link:label>
<link:label id="lab_us-gaap_StockholdersEquity_5010C43C461248A588EE030B302B5B96_label_en-US" xlink:label="lab_us-gaap_StockholdersEquity_5010C43C461248A588EE030B302B5B96" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stockholders' Equity Attributable to Parent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_5010C43C461248A588EE030B302B5B96" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NetIncomeLoss_798D3D6CA6F1B79CD92A030B302BD54C_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_798D3D6CA6F1B79CD92A030B302BD54C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net income (attributable to parent) </link:label>
<link:label id="lab_us-gaap_NetIncomeLoss_798D3D6CA6F1B79CD92A030B302BD54C_label_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_798D3D6CA6F1B79CD92A030B302BD54C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss) Attributable to Parent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_798D3D6CA6F1B79CD92A030B302BD54C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProfitLoss_60FBDF671193B159624D030B302BC3AB_verboseLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss_60FBDF671193B159624D030B302BC3AB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Net Income </link:label>
<link:label id="lab_us-gaap_ProfitLoss_60FBDF671193B159624D030B302BC3AB_label_en-US" xlink:label="lab_us-gaap_ProfitLoss_60FBDF671193B159624D030B302BC3AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss), Including Portion Attributable to Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_60FBDF671193B159624D030B302BC3AB" xlink:type="locator"/>
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<link:label id="lab_duk_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestIncludingPreferredDistributions_D9771EEB1DFE4FE2F105030B302BF096_terseLabel_en-US" xlink:label="lab_duk_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestIncludingPreferredDistributions_D9771EEB1DFE4FE2F105030B302BF096" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net income </link:label>
<link:label id="lab_duk_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestIncludingPreferredDistributions_D9771EEB1DFE4FE2F105030B302BF096_label_en-US" xlink:label="lab_duk_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestIncludingPreferredDistributions_D9771EEB1DFE4FE2F105030B302BF096" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Including Preferred Distributions </link:label>
<link:label id="lab_duk_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestIncludingPreferredDistributions_D9771EEB1DFE4FE2F105030B302BF096_documentation_en-US" xlink:label="lab_duk_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestIncludingPreferredDistributions_D9771EEB1DFE4FE2F105030B302BF096" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Including Preferred Distributions </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestIncludingPreferredDistributions" xlink:label="loc_duk_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestIncludingPreferredDistributions_D9771EEB1DFE4FE2F105030B302BF096" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6CBAD867857BDA4386EE030B302B0A79_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6CBAD867857BDA4386EE030B302B0A79" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other comprehensive income (loss) </link:label>
<link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6CBAD867857BDA4386EE030B302B0A79_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6CBAD867857BDA4386EE030B302B0A79" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Comprehensive Income (Loss), Net of Tax </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6CBAD867857BDA4386EE030B302B0A79" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_EF4017580659CA1769F1030B302BE5A9_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_EF4017580659CA1769F1030B302BE5A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock issuances, shares </link:label>
<link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_EF4017580659CA1769F1030B302BE5A9_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_EF4017580659CA1769F1030B302BE5A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Issued During Period, Shares, New Issues </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_EF4017580659CA1769F1030B302BE5A9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_2A76F3B188CC4A0B87C6030B302B38B6_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_2A76F3B188CC4A0B87C6030B302B38B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock issuances </link:label>
<link:label id="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_2A76F3B188CC4A0B87C6030B302B38B6_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_2A76F3B188CC4A0B87C6030B302B38B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Issued During Period, Value, New Issues </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_2A76F3B188CC4A0B87C6030B302B38B6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_Dividends_C3C3EBAACE5397733BC6030B302B614D_negatedLabel_en-US" xlink:label="lab_us-gaap_Dividends_C3C3EBAACE5397733BC6030B302B614D" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Common stock dividends </link:label>
<link:label id="lab_us-gaap_Dividends_C3C3EBAACE5397733BC6030B302B614D_label_en-US" xlink:label="lab_us-gaap_Dividends_C3C3EBAACE5397733BC6030B302B614D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Dividends </link:label>
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<link:label id="lab_us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation_DFD3FCEBC76682339F88030B302B607F_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation_DFD3FCEBC76682339F88030B302B607F" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Sale of noncontrolling interest </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation" xlink:label="loc_us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation_DFD3FCEBC76682339F88030B302B607F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_752575BC4651BEE98F623BC1883A394B_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_752575BC4651BEE98F623BC1883A394B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Accounts, Notes, Loans and Financing Receivable [Table] </link:label>
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<link:label id="lab_us-gaap_AccountsNotesAndLoansReceivableLineItems_95276CCBE8410D93C4DF3BC1883A4AA6_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsNotesAndLoansReceivableLineItems_95276CCBE8410D93C4DF3BC1883A4AA6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accounts, Notes, Loans and Financing Receivable [Line Items] </link:label>
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<link:label id="lab_us-gaap_ScheduleOfVariableInterestEntitiesTable_C94483E87FEDEBB57B33B88F97B5FDE9_label_en-US" xlink:label="lab_us-gaap_ScheduleOfVariableInterestEntitiesTable_EDA15E35B38D56B082D669EB001838CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Variable Interest Entities [Table] </link:label>
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<link:label id="lab_duk_CinergyReceivablesMember_7E89094DD4A24F6FD8F1B88F97B5EE24_terseLabel_en-US" xlink:label="lab_duk_CinergyReceivablesMember_9CBEA109AE5450BEAECD01F6A84A2189" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cinergy Receivables [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_CinergyReceivablesMember" xlink:label="loc_duk_CinergyReceivablesMember_9CBEA109AE5450BEAECD01F6A84A2189" xlink:type="locator"/>
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<link:label id="lab_duk_DERFMember_E9058E66E8693A29C315B88F97B6FCCC_terseLabel_en-US" xlink:label="lab_duk_DERFMember_7326F690CF26596792C12DA6B91AD5FA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> DERF [Member] </link:label>
<link:label id="lab_duk_DERFMember_E9058E66E8693A29C315B88F97B6FCCC_label_en-US" xlink:label="lab_duk_DERFMember_7326F690CF26596792C12DA6B91AD5FA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> DERF [Member] </link:label>
<link:label id="lab_duk_DERFMember_E9058E66E8693A29C315B88F97B6FCCC_documentation_en-US" xlink:label="lab_duk_DERFMember_7326F690CF26596792C12DA6B91AD5FA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Wholly owned limited liability company named Duke Energy Receivables Finance Company, LLC. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DERFMember" xlink:label="loc_duk_DERFMember_7326F690CF26596792C12DA6B91AD5FA" xlink:type="locator"/>
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<link:label id="lab_duk_DeprMember_32098E7D31850E32B08EB88F97B6AB48_terseLabel_en-US" xlink:label="lab_duk_DeprMember_3C41B91DF5BB5C039A2341F7F65C0478" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> DEPR [Member] </link:label>
<link:label id="lab_duk_DeprMember_32098E7D31850E32B08EB88F97B6AB48_label_en-US" xlink:label="lab_duk_DeprMember_3C41B91DF5BB5C039A2341F7F65C0478" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> DEPR [Member] </link:label>
<link:label id="lab_duk_DeprMember_32098E7D31850E32B08EB88F97B6AB48_documentation_en-US" xlink:label="lab_duk_DeprMember_3C41B91DF5BB5C039A2341F7F65C0478" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Duke Energy Progress Receivables, LLC </link:label>
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<link:label id="lab_duk_DefrMember_4D210C5B1A034A5E4874B88F97B6183B_terseLabel_en-US" xlink:label="lab_duk_DefrMember_0E90A8E6F307566AA776D5BF61E6CD53" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> DEFR [Member] </link:label>
<link:label id="lab_duk_DefrMember_4D210C5B1A034A5E4874B88F97B6183B_label_en-US" xlink:label="lab_duk_DefrMember_0E90A8E6F307566AA776D5BF61E6CD53" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defr [Member] </link:label>
<link:label id="lab_duk_DefrMember_4D210C5B1A034A5E4874B88F97B6183B_documentation_en-US" xlink:label="lab_duk_DefrMember_0E90A8E6F307566AA776D5BF61E6CD53" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Duke Energy Flordia Receivables, LLC </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DefrMember" xlink:label="loc_duk_DefrMember_0E90A8E6F307566AA776D5BF61E6CD53" xlink:type="locator"/>
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<link:label id="lab_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_9E1FF96C9AD90C0D9182B88F97B87436_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_25482C32306F503BBF32B55ECC96E02F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable Interest Entities [Axis] </link:label>
<link:label id="lab_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_9E1FF96C9AD90C0D9182B88F97B87436_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_25482C32306F503BBF32B55ECC96E02F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Interest Entities [Axis] </link:label>
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<link:label id="lab_us-gaap_ClassificationOfVariableInterestEntityDomain_092658358DB1E94B6AF0B88F97B87531_label_en-US" xlink:label="lab_us-gaap_ClassificationOfVariableInterestEntityDomain_2D0193BC42685F66AF435597416DDFF1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity, Classification [Domain] </link:label>
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<link:label id="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_F4F9044D6B590DCE4243B88F97B88B5F_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_BC957971BE2D560FB01CE03F71BD5341" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity, Primary Beneficiary [Member] </link:label>
<link:label id="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_F4F9044D6B590DCE4243B88F97B88B5F_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_BC957971BE2D560FB01CE03F71BD5341" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity, Primary Beneficiary [Member] </link:label>
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<link:label id="lab_us-gaap_VariableInterestEntityLineItems_AC10DF732E3F97EE2777B88F97B89E9E_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityLineItems_F9A16654652A56A48B43B7F3C3D0F43E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable Interest Entities [Line Items] </link:label>
<link:label id="lab_us-gaap_VariableInterestEntityLineItems_AC10DF732E3F97EE2777B88F97B89E9E_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityLineItems_F9A16654652A56A48B43B7F3C3D0F43E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity [Line Items] </link:label>
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<link:label id="lab_us-gaap_LineOfCreditFacilityExpirationDate1_BF6D82C61EA4DEEC395DB88F97B8A943_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityExpirationDate1_7774AD47E923596C9E4701E2CAB73B3A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Line of credit facility, expiration date </link:label>
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<link:label id="lab_us-gaap_LongTermDebtNoncurrent_E03C83BA7B518B5F793FB88F97B9B137_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtNoncurrent_837DD5EEB07F5164B314C7B5455B33D8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-Term Debt </link:label>
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<link:label id="lab_us-gaap_AccountsReceivableFromSecuritization_B2D835795778392FDA0FB88F97B9EB33_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableFromSecuritization_F9D0E07637845DCDA30D0BFFBB93647A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accounts receivable from securitization </link:label>
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<link:label id="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTable_CEDAD4E1FD381BB26DC3DF541A2A7FEB_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTable_CEDAD4E1FD381BB26DC3DF541A2A7FEB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public Utilities General Disclosures [Table] </link:label>
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<link:label id="lab_us-gaap_PublicUtilityAxis_45791BED3FE9E01423B0DF541A2A917E_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilityAxis_45791BED3FE9E01423B0DF541A2A917E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public Utility [Axis] </link:label>
<link:label id="lab_us-gaap_PublicUtilityAxis_45791BED3FE9E01423B0DF541A2A917E_label_en-US" xlink:label="lab_us-gaap_PublicUtilityAxis_45791BED3FE9E01423B0DF541A2A917E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utility [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilityAxis" xlink:label="loc_us-gaap_PublicUtilityAxis_45791BED3FE9E01423B0DF541A2A917E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_UtilityPlantDomain_E68CEBD62EF52D11955FDF541A2AD4CF_terseLabel_en-US" xlink:label="lab_us-gaap_UtilityPlantDomain_E68CEBD62EF52D11955FDF541A2AD4CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Utility Plant [Domain] </link:label>
<link:label id="lab_us-gaap_UtilityPlantDomain_E68CEBD62EF52D11955FDF541A2AD4CF_label_en-US" xlink:label="lab_us-gaap_UtilityPlantDomain_E68CEBD62EF52D11955FDF541A2AD4CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Utility Plant [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UtilityPlantDomain" xlink:label="loc_us-gaap_UtilityPlantDomain_E68CEBD62EF52D11955FDF541A2AD4CF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilityPlantDomain_E68CEBD62EF52D11955FDF541A2AD4CF" xlink:to="lab_us-gaap_UtilityPlantDomain_E68CEBD62EF52D11955FDF541A2AD4CF" xlink:type="arc"/>
<link:label id="lab_duk_AllenSteamStationUnits13Member_78D6FFEFB61334F625EEDF541A2AFDFD_terseLabel_en-US" xlink:label="lab_duk_AllenSteamStationUnits13Member_78D6FFEFB61334F625EEDF541A2AFDFD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Allen Steam Station Units 1-3 [Member] </link:label>
<link:label id="lab_duk_AllenSteamStationUnits13Member_78D6FFEFB61334F625EEDF541A2AFDFD_label_en-US" xlink:label="lab_duk_AllenSteamStationUnits13Member_78D6FFEFB61334F625EEDF541A2AFDFD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Allen Steam Station Units 1-3 [Member] </link:label>
<link:label id="lab_duk_AllenSteamStationUnits13Member_78D6FFEFB61334F625EEDF541A2AFDFD_documentation_en-US" xlink:label="lab_duk_AllenSteamStationUnits13Member_78D6FFEFB61334F625EEDF541A2AFDFD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Allen Steam Station Units 1-3 [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_AllenSteamStationUnits13Member" xlink:label="loc_duk_AllenSteamStationUnits13Member_78D6FFEFB61334F625EEDF541A2AFDFD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_AllenSteamStationUnits13Member_78D6FFEFB61334F625EEDF541A2AFDFD" xlink:to="lab_duk_AllenSteamStationUnits13Member_78D6FFEFB61334F625EEDF541A2AFDFD" xlink:type="arc"/>
<link:label id="lab_duk_GallagherUnits2and4Member_082D4BFBEE78FF56D426DF541A2B523D_terseLabel_en-US" xlink:label="lab_duk_GallagherUnits2and4Member_082D4BFBEE78FF56D426DF541A2B523D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Gallagher Units 2 and 4 [Member] </link:label>
<link:label id="lab_duk_GallagherUnits2and4Member_082D4BFBEE78FF56D426DF541A2B523D_label_en-US" xlink:label="lab_duk_GallagherUnits2and4Member_082D4BFBEE78FF56D426DF541A2B523D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Gallagher Units 2 and 4 [Member] </link:label>
<link:label id="lab_duk_GallagherUnits2and4Member_082D4BFBEE78FF56D426DF541A2B523D_documentation_en-US" xlink:label="lab_duk_GallagherUnits2and4Member_082D4BFBEE78FF56D426DF541A2B523D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Gallagher Units 2 and 4 [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_GallagherUnits2and4Member" xlink:label="loc_duk_GallagherUnits2and4Member_082D4BFBEE78FF56D426DF541A2B523D" xlink:type="locator"/>
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<link:label id="lab_duk_GibsonUnits1Through5Member_5208D9FEE2A3C628F42ADF541A2C29C4_terseLabel_en-US" xlink:label="lab_duk_GibsonUnits1Through5Member_5208D9FEE2A3C628F42ADF541A2C29C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Gibson Units 1-5 [Member] </link:label>
<link:label id="lab_duk_GibsonUnits1Through5Member_5208D9FEE2A3C628F42ADF541A2C29C4_label_en-US" xlink:label="lab_duk_GibsonUnits1Through5Member_5208D9FEE2A3C628F42ADF541A2C29C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Gibson Units 1 Through 5 [Member] </link:label>
<link:label id="lab_duk_GibsonUnits1Through5Member_5208D9FEE2A3C628F42ADF541A2C29C4_documentation_en-US" xlink:label="lab_duk_GibsonUnits1Through5Member_5208D9FEE2A3C628F42ADF541A2C29C4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Gibson Units 1 Through 5 [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_GibsonUnits1Through5Member" xlink:label="loc_duk_GibsonUnits1Through5Member_5208D9FEE2A3C628F42ADF541A2C29C4" xlink:type="locator"/>
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<link:label id="lab_duk_CayugaUnits1And2Member_3FB013CE6DEB9BAE53B0DF541A2C3F4C_terseLabel_en-US" xlink:label="lab_duk_CayugaUnits1And2Member_3FB013CE6DEB9BAE53B0DF541A2C3F4C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cayuga Units 1-2 [Member] </link:label>
<link:label id="lab_duk_CayugaUnits1And2Member_3FB013CE6DEB9BAE53B0DF541A2C3F4C_label_en-US" xlink:label="lab_duk_CayugaUnits1And2Member_3FB013CE6DEB9BAE53B0DF541A2C3F4C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cayuga Units 1 And 2 [Member] </link:label>
<link:label id="lab_duk_CayugaUnits1And2Member_3FB013CE6DEB9BAE53B0DF541A2C3F4C_documentation_en-US" xlink:label="lab_duk_CayugaUnits1And2Member_3FB013CE6DEB9BAE53B0DF541A2C3F4C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Cayuga Units 1 And 2 [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_CayugaUnits1And2Member" xlink:label="loc_duk_CayugaUnits1And2Member_3FB013CE6DEB9BAE53B0DF541A2C3F4C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F4BC53F214154E107197DF541A2C1234_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F4BC53F214154E107197DF541A2C1234" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Type [Axis] </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F4BC53F214154E107197DF541A2C1234_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F4BC53F214154E107197DF541A2C1234" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Type [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F4BC53F214154E107197DF541A2C1234" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_9C98E816A3B6940FCEEEDF541A2CB1E4_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_9C98E816A3B6940FCEEEDF541A2CB1E4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Type [Domain] </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_9C98E816A3B6940FCEEEDF541A2CB1E4_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_9C98E816A3B6940FCEEEDF541A2CB1E4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Type [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9C98E816A3B6940FCEEEDF541A2CB1E4" xlink:type="locator"/>
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<link:label id="lab_duk_GenerationFacilitiesToBeRetiredMember_369C4704BBE8715540D4DF541A2CFAFF_terseLabel_en-US" xlink:label="lab_duk_GenerationFacilitiesToBeRetiredMember_369C4704BBE8715540D4DF541A2CFAFF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Generation Facilities To Be Retired [Member] </link:label>
<link:label id="lab_duk_GenerationFacilitiesToBeRetiredMember_369C4704BBE8715540D4DF541A2CFAFF_label_en-US" xlink:label="lab_duk_GenerationFacilitiesToBeRetiredMember_369C4704BBE8715540D4DF541A2CFAFF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Generation Facilities To Be Retired [Member] </link:label>
<link:label id="lab_duk_GenerationFacilitiesToBeRetiredMember_369C4704BBE8715540D4DF541A2CFAFF_documentation_en-US" xlink:label="lab_duk_GenerationFacilitiesToBeRetiredMember_369C4704BBE8715540D4DF541A2CFAFF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Generation Facilities To Be Retired [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_GenerationFacilitiesToBeRetiredMember" xlink:label="loc_duk_GenerationFacilitiesToBeRetiredMember_369C4704BBE8715540D4DF541A2CFAFF" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesGeneralDisclosuresLineItems_6AED3FDBA64A51966F96DF541A2EC49B_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesGeneralDisclosuresLineItems_6AED3FDBA64A51966F96DF541A2EC49B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public Utilities, General Disclosures [Line Items] </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesGeneralDisclosuresLineItems_6AED3FDBA64A51966F96DF541A2EC49B_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesGeneralDisclosuresLineItems_6AED3FDBA64A51966F96DF541A2EC49B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, General Disclosures [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesGeneralDisclosuresLineItems" xlink:label="loc_us-gaap_PublicUtilitiesGeneralDisclosuresLineItems_6AED3FDBA64A51966F96DF541A2EC49B" xlink:type="locator"/>
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<link:label id="lab_duk_CoalFiredGenerationCapacityPotentialPlantsToBeRetiredInMegawatts_6F06FAC0910D3C5075E6DF541A2E54A2_terseLabel_en-US" xlink:label="lab_duk_CoalFiredGenerationCapacityPotentialPlantsToBeRetiredInMegawatts_6F06FAC0910D3C5075E6DF541A2E54A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Capacity (in MW) </link:label>
<link:label id="lab_duk_CoalFiredGenerationCapacityPotentialPlantsToBeRetiredInMegawatts_6F06FAC0910D3C5075E6DF541A2E54A2_label_en-US" xlink:label="lab_duk_CoalFiredGenerationCapacityPotentialPlantsToBeRetiredInMegawatts_6F06FAC0910D3C5075E6DF541A2E54A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Coal-Fired Generation Capacity Potential Plants To Be Retired, in Megawatts </link:label>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_0F7CE72816104A10AF4DDF541A2E7F4E_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_0F7CE72816104A10AF4DDF541A2E7F4E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, plant and equipment, net </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_0F7CE72816104A10AF4DDF541A2E7F4E_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_0F7CE72816104A10AF4DDF541A2E7F4E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Net </link:label>
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<link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_9997A7E5B9CCE1E39544DF541A2E8096_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_9997A7E5B9CCE1E39544DF541A2E8096" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public utilities, property, plant and equipment, net </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_9997A7E5B9CCE1E39544DF541A2E8096_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_9997A7E5B9CCE1E39544DF541A2E8096" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Property, Plant and Equipment, Net </link:label>
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<link:label id="lab_us-gaap_ScheduleOfLossContingenciesByContingencyTextBlock_6787C9C9E79DDE0071D848F0E9E3D337_label_en-US" xlink:label="lab_us-gaap_ScheduleOfLossContingenciesByContingencyTextBlock_F0441A3E5ADC52F6925ABAF6028668E5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Loss Contingencies by Contingency [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_OffsettingLiabilitiesTable_A9CA3DD9A0C30098A3BBB88F97FCCFAF_label_en-US" xlink:label="lab_us-gaap_OffsettingLiabilitiesTable_BCA447B37E185224B14EF2FADF4FEAE1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Offsetting Liabilities [Table] </link:label>
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<link:label id="lab_us-gaap_OffsettingLiabilitiesLineItems_B4EF426EF535EB442967B88F97FE6639_label_en-US" xlink:label="lab_us-gaap_OffsettingLiabilitiesLineItems_413A93070C7C5DEDA23287D030D9B221" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Offsetting Liabilities [Line Items] </link:label>
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<link:label id="lab_duk_CommercialRenewablesMember_324F63A2869AF5A2041EB88F966C2399_terseLabel_en-US" xlink:label="lab_duk_CommercialRenewablesMember_35DF2525CCA454F28D5C37E6ADC29101" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Commercial Renewables [Member] </link:label>
<link:label id="lab_duk_CommercialRenewablesMember_324F63A2869AF5A2041EB88F966C2399_label_en-US" xlink:label="lab_duk_CommercialRenewablesMember_35DF2525CCA454F28D5C37E6ADC29101" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Commercial Renewables [Member] </link:label>
<link:label id="lab_duk_CommercialRenewablesMember_324F63A2869AF5A2041EB88F966C2399_documentation_en-US" xlink:label="lab_duk_CommercialRenewablesMember_35DF2525CCA454F28D5C37E6ADC29101" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Commercial Renewables </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_CommercialRenewablesMember" xlink:label="loc_duk_CommercialRenewablesMember_35DF2525CCA454F28D5C37E6ADC29101" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_CommercialRenewablesMember_35DF2525CCA454F28D5C37E6ADC29101" xlink:to="lab_duk_CommercialRenewablesMember_35DF2525CCA454F28D5C37E6ADC29101" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillLineItems_6D686540EEB70A6038D0B88F966C9E3F_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillLineItems_3E9458FEB4C95057810297C5B42D446A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill [Line Items] </link:label>
<link:label id="lab_us-gaap_GoodwillLineItems_6D686540EEB70A6038D0B88F966C9E3F_label_en-US" xlink:label="lab_us-gaap_GoodwillLineItems_3E9458FEB4C95057810297C5B42D446A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="loc_us-gaap_GoodwillLineItems_3E9458FEB4C95057810297C5B42D446A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_GoodwillGross_27AA49B1252D92FE42B1B88F966CD6BF_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillGross_D2C9E8127FE55DC29751B4C35A04384E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill balance </link:label>
<link:label id="lab_us-gaap_GoodwillGross_27AA49B1252D92FE42B1B88F966CD6BF_label_en-US" xlink:label="lab_us-gaap_GoodwillGross_D2C9E8127FE55DC29751B4C35A04384E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill, Gross </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillGross" xlink:label="loc_us-gaap_GoodwillGross_D2C9E8127FE55DC29751B4C35A04384E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_BAAEB85F2FF143936D0DB88F966C403E_negatedLabel_en-US" xlink:label="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_1E294D8B2EE451168783F0C2CF64BF43" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Accumulated impairment charges </link:label>
<link:label id="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_BAAEB85F2FF143936D0DB88F966C403E_label_en-US" xlink:label="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_1E294D8B2EE451168783F0C2CF64BF43" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill, Impaired, Accumulated Impairment Loss </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_1E294D8B2EE451168783F0C2CF64BF43" xlink:type="locator"/>
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<link:label id="lab_us-gaap_Goodwill_EB9DF81102C42543B972B88F966C7AD2_totalLabel_en-US" xlink:label="lab_us-gaap_Goodwill_D77ACD5067C252D6A4DCB0ECEE8B6F51" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Goodwill balance, adjusted for accumulated impairment charges </link:label>
<link:label id="lab_us-gaap_Goodwill_EB9DF81102C42543B972B88F966C7AD2_label_en-US" xlink:label="lab_us-gaap_Goodwill_D77ACD5067C252D6A4DCB0ECEE8B6F51" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
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<link:label id="lab_duk_DukeEnergyKentuckyMember_5F02A7FFE5B2925311033C50E8E221E8_terseLabel_en-US" xlink:label="lab_duk_DukeEnergyKentuckyMember_5F02A7FFE5B2925311033C50E8E221E8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Duke Energy Kentucky [Member] </link:label>
<link:label id="lab_duk_DukeEnergyKentuckyMember_5F02A7FFE5B2925311033C50E8E221E8_label_en-US" xlink:label="lab_duk_DukeEnergyKentuckyMember_5F02A7FFE5B2925311033C50E8E221E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Duke Energy Kentucky [Member] </link:label>
<link:label id="lab_duk_DukeEnergyKentuckyMember_5F02A7FFE5B2925311033C50E8E221E8_documentation_en-US" xlink:label="lab_duk_DukeEnergyKentuckyMember_5F02A7FFE5B2925311033C50E8E221E8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Duke Energy Kentucky </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DukeEnergyKentuckyMember" xlink:label="loc_duk_DukeEnergyKentuckyMember_5F02A7FFE5B2925311033C50E8E221E8" xlink:type="locator"/>
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<link:label id="lab_duk_AtlanticCoastPipelineMember_9917D976D7332A58DFA53C50E8E357D9_terseLabel_en-US" xlink:label="lab_duk_AtlanticCoastPipelineMember_9917D976D7332A58DFA53C50E8E357D9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Atlantic Coast Pipeline [Member] </link:label>
<link:label id="lab_duk_AtlanticCoastPipelineMember_9917D976D7332A58DFA53C50E8E357D9_label_en-US" xlink:label="lab_duk_AtlanticCoastPipelineMember_9917D976D7332A58DFA53C50E8E357D9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Atlantic Coast Pipeline [Member] </link:label>
<link:label id="lab_duk_AtlanticCoastPipelineMember_9917D976D7332A58DFA53C50E8E357D9_documentation_en-US" xlink:label="lab_duk_AtlanticCoastPipelineMember_9917D976D7332A58DFA53C50E8E357D9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Atlantic Coast Pipeline [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_AtlanticCoastPipelineMember" xlink:label="loc_duk_AtlanticCoastPipelineMember_9917D976D7332A58DFA53C50E8E357D9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_GuaranteeObligationsByNatureAxis_CEA8582ED8FF1E615AC73C50E8E403FE_terseLabel_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsByNatureAxis_CEA8582ED8FF1E615AC73C50E8E403FE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Guarantor Obligations, Nature [Axis] </link:label>
<link:label id="lab_us-gaap_GuaranteeObligationsByNatureAxis_CEA8582ED8FF1E615AC73C50E8E403FE_label_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsByNatureAxis_CEA8582ED8FF1E615AC73C50E8E403FE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Guarantor Obligations, Nature [Axis] </link:label>
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<link:label id="lab_us-gaap_GuaranteeObligationsNatureDomain_1F07B31C48981C07B7983C50E8E4600A_terseLabel_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsNatureDomain_1F07B31C48981C07B7983C50E8E4600A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Guarantor Obligations, Nature [Domain] </link:label>
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<link:label id="lab_us-gaap_FinancialGuaranteeMember_0B91C01C539041689B883C50E8E9A493_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialGuaranteeMember_0B91C01C539041689B883C50E8E9A493" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Financial Guarantee [Member] </link:label>
<link:label id="lab_us-gaap_FinancialGuaranteeMember_0B91C01C539041689B883C50E8E9A493_label_en-US" xlink:label="lab_us-gaap_FinancialGuaranteeMember_0B91C01C539041689B883C50E8E9A493" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Financial Guarantee [Member] </link:label>
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<link:label id="lab_srt_StatementGeographicalAxis_D21FB886DEEB5B09924F3C50E8E99B24_terseLabel_en-US" xlink:label="lab_srt_StatementGeographicalAxis_D21FB886DEEB5B09924F3C50E8E99B24" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Geographical [Axis] </link:label>
<link:label id="lab_srt_StatementGeographicalAxis_D21FB886DEEB5B09924F3C50E8E99B24_label_en-US" xlink:label="lab_srt_StatementGeographicalAxis_D21FB886DEEB5B09924F3C50E8E99B24" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Geographical [Axis] </link:label>
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<link:label id="lab_stpr_NC_BF4089E0A3BA3AF89FD83C50E8EAE4FF_terseLabel_en-US" xlink:label="lab_stpr_NC_BF4089E0A3BA3AF89FD83C50E8EAE4FF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> North Carolina [Member] </link:label>
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<link:label id="lab_duk_NorthCarolinaIntegrityManagementRiderFilingMember_FE89B300A321E73BD49A3C50E8F29929_terseLabel_en-US" xlink:label="lab_duk_NorthCarolinaIntegrityManagementRiderFilingMember_FE89B300A321E73BD49A3C50E8F29929" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> North Carolina Integrity Management Rider Filing [Member] </link:label>
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<link:label id="lab_duk_TennesseeIntegrityManagementRiderFilingNovember2018Member_C20510ECC2F11DDE326F3C50E8F7F635_terseLabel_en-US" xlink:label="lab_duk_TennesseeIntegrityManagementRiderFilingNovember2018Member_C20510ECC2F11DDE326F3C50E8F7F635" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tennessee Integrity Management Rider Filing November 2018 [Member] </link:label>
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<link:label id="lab_duk_HamiltonProjectMember_543F6E5C6092C5C605913C50E8F9AE91_terseLabel_en-US" xlink:label="lab_duk_HamiltonProjectMember_543F6E5C6092C5C605913C50E8F9AE91" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Hamilton Project [Member] </link:label>
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<link:label id="lab_duk_ColumbiaProjectMember_29763E0B0DA7EEF29C713C50E8F9AFC2_terseLabel_en-US" xlink:label="lab_duk_ColumbiaProjectMember_29763E0B0DA7EEF29C713C50E8F9AFC2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Columbia Project [Member] </link:label>
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<link:label id="lab_us-gaap_RegulatoryAgencyDomain_F26D04E20E3FD11E73C43C50E8FA4985_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAgencyDomain_F26D04E20E3FD11E73C43C50E8FA4985" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Regulatory Agency [Domain] </link:label>
<link:label id="lab_us-gaap_RegulatoryAgencyDomain_F26D04E20E3FD11E73C43C50E8FA4985_label_en-US" xlink:label="lab_us-gaap_RegulatoryAgencyDomain_F26D04E20E3FD11E73C43C50E8FA4985" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Regulatory Agency [Domain] </link:label>
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<link:label id="lab_duk_NCUCMember_C3A0AD3080048B4CBCD93C50E8FA785D_terseLabel_en-US" xlink:label="lab_duk_NCUCMember_C3A0AD3080048B4CBCD93C50E8FA785D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> NCUC [Member] </link:label>
<link:label id="lab_duk_NCUCMember_C3A0AD3080048B4CBCD93C50E8FA785D_label_en-US" xlink:label="lab_duk_NCUCMember_C3A0AD3080048B4CBCD93C50E8FA785D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> NCUC [Member] </link:label>
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<link:loc xlink:href="duk-20190930.xsd#duk_NCUCMember" xlink:label="loc_duk_NCUCMember_C3A0AD3080048B4CBCD93C50E8FA785D" xlink:type="locator"/>
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<link:label id="lab_duk_FederalEnergyRegulatoryCommissionMember_DE5D44252FC2363744153C50E8FB0B15_terseLabel_en-US" xlink:label="lab_duk_FederalEnergyRegulatoryCommissionMember_DE5D44252FC2363744153C50E8FB0B15" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> FERC [Member] </link:label>
<link:label id="lab_duk_FederalEnergyRegulatoryCommissionMember_DE5D44252FC2363744153C50E8FB0B15_label_en-US" xlink:label="lab_duk_FederalEnergyRegulatoryCommissionMember_DE5D44252FC2363744153C50E8FB0B15" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Federal Energy Regulatory Commission [Member] </link:label>
<link:label id="lab_duk_FederalEnergyRegulatoryCommissionMember_DE5D44252FC2363744153C50E8FB0B15_documentation_en-US" xlink:label="lab_duk_FederalEnergyRegulatoryCommissionMember_DE5D44252FC2363744153C50E8FB0B15" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Federal Energy Regulatory Commission [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_FederalEnergyRegulatoryCommissionMember" xlink:label="loc_duk_FederalEnergyRegulatoryCommissionMember_DE5D44252FC2363744153C50E8FB0B15" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_FederalEnergyRegulatoryCommissionMember_DE5D44252FC2363744153C50E8FB0B15" xlink:to="lab_duk_FederalEnergyRegulatoryCommissionMember_DE5D44252FC2363744153C50E8FB0B15" xlink:type="arc"/>
<link:label id="lab_duk_PSCSCMember_39AE81BB68DF13ECA6C63C50E8FB2A76_terseLabel_en-US" xlink:label="lab_duk_PSCSCMember_39AE81BB68DF13ECA6C63C50E8FB2A76" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> PSCSC [Member] </link:label>
<link:label id="lab_duk_PSCSCMember_39AE81BB68DF13ECA6C63C50E8FB2A76_label_en-US" xlink:label="lab_duk_PSCSCMember_39AE81BB68DF13ECA6C63C50E8FB2A76" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> PSCSC [Member] </link:label>
<link:label id="lab_duk_PSCSCMember_39AE81BB68DF13ECA6C63C50E8FB2A76_documentation_en-US" xlink:label="lab_duk_PSCSCMember_39AE81BB68DF13ECA6C63C50E8FB2A76" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Service Commission of South Carolina [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PSCSCMember" xlink:label="loc_duk_PSCSCMember_39AE81BB68DF13ECA6C63C50E8FB2A76" xlink:type="locator"/>
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<link:label id="lab_duk_FPSCMember_35C41743D568D9717F453C50E8FBDC2B_terseLabel_en-US" xlink:label="lab_duk_FPSCMember_35C41743D568D9717F453C50E8FBDC2B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> FPSC [Member] </link:label>
<link:label id="lab_duk_FPSCMember_35C41743D568D9717F453C50E8FBDC2B_label_en-US" xlink:label="lab_duk_FPSCMember_35C41743D568D9717F453C50E8FBDC2B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> FPSC [Member] </link:label>
<link:label id="lab_duk_FPSCMember_35C41743D568D9717F453C50E8FBDC2B_documentation_en-US" xlink:label="lab_duk_FPSCMember_35C41743D568D9717F453C50E8FBDC2B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Florida Public Service Commission [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_FPSCMember" xlink:label="loc_duk_FPSCMember_35C41743D568D9717F453C50E8FBDC2B" xlink:type="locator"/>
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<link:label id="lab_duk_PublicUtilitiesCommissionOfOhioMember_7E8AC30F8C6BD63504CD3C50E8FBE62C_terseLabel_en-US" xlink:label="lab_duk_PublicUtilitiesCommissionOfOhioMember_7E8AC30F8C6BD63504CD3C50E8FBE62C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> PUCO [Member] </link:label>
<link:label id="lab_duk_PublicUtilitiesCommissionOfOhioMember_7E8AC30F8C6BD63504CD3C50E8FBE62C_label_en-US" xlink:label="lab_duk_PublicUtilitiesCommissionOfOhioMember_7E8AC30F8C6BD63504CD3C50E8FBE62C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities Commission Of Ohio [Member] </link:label>
<link:label id="lab_duk_PublicUtilitiesCommissionOfOhioMember_7E8AC30F8C6BD63504CD3C50E8FBE62C_documentation_en-US" xlink:label="lab_duk_PublicUtilitiesCommissionOfOhioMember_7E8AC30F8C6BD63504CD3C50E8FBE62C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Utilities Commission of Ohio regulatory body. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PublicUtilitiesCommissionOfOhioMember" xlink:label="loc_duk_PublicUtilitiesCommissionOfOhioMember_7E8AC30F8C6BD63504CD3C50E8FBE62C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PublicUtilitiesCommissionOfOhioMember_7E8AC30F8C6BD63504CD3C50E8FBE62C" xlink:to="lab_duk_PublicUtilitiesCommissionOfOhioMember_7E8AC30F8C6BD63504CD3C50E8FBE62C" xlink:type="arc"/>
<link:label id="lab_duk_OhioPowerSitingBoardMember_491A570D86E73011E0C23C50E8FB8490_terseLabel_en-US" xlink:label="lab_duk_OhioPowerSitingBoardMember_491A570D86E73011E0C23C50E8FB8490" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> OPSB [Member] </link:label>
<link:label id="lab_duk_OhioPowerSitingBoardMember_491A570D86E73011E0C23C50E8FB8490_label_en-US" xlink:label="lab_duk_OhioPowerSitingBoardMember_491A570D86E73011E0C23C50E8FB8490" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Ohio Power Siting Board [Member] </link:label>
<link:label id="lab_duk_OhioPowerSitingBoardMember_491A570D86E73011E0C23C50E8FB8490_documentation_en-US" xlink:label="lab_duk_OhioPowerSitingBoardMember_491A570D86E73011E0C23C50E8FB8490" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Ohio Power Siting Board [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_OhioPowerSitingBoardMember" xlink:label="loc_duk_OhioPowerSitingBoardMember_491A570D86E73011E0C23C50E8FB8490" xlink:type="locator"/>
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<link:label id="lab_duk_KPSCMember_3767046E5DEB58F889213C50E8FBB4BD_terseLabel_en-US" xlink:label="lab_duk_KPSCMember_3767046E5DEB58F889213C50E8FBB4BD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> KPSC [Member] </link:label>
<link:label id="lab_duk_KPSCMember_3767046E5DEB58F889213C50E8FBB4BD_label_en-US" xlink:label="lab_duk_KPSCMember_3767046E5DEB58F889213C50E8FBB4BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> KPSC [Member] </link:label>
<link:label id="lab_duk_KPSCMember_3767046E5DEB58F889213C50E8FBB4BD_documentation_en-US" xlink:label="lab_duk_KPSCMember_3767046E5DEB58F889213C50E8FBB4BD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> KPSC [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_KPSCMember" xlink:label="loc_duk_KPSCMember_3767046E5DEB58F889213C50E8FBB4BD" xlink:type="locator"/>
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<link:label id="lab_duk_IndianaUtilityRegulatoryCommissionMember_21BF01B23D20A3B3BD6F3C50E8FCF64D_terseLabel_en-US" xlink:label="lab_duk_IndianaUtilityRegulatoryCommissionMember_21BF01B23D20A3B3BD6F3C50E8FCF64D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> IURC [Member] </link:label>
<link:label id="lab_duk_IndianaUtilityRegulatoryCommissionMember_21BF01B23D20A3B3BD6F3C50E8FCF64D_label_en-US" xlink:label="lab_duk_IndianaUtilityRegulatoryCommissionMember_21BF01B23D20A3B3BD6F3C50E8FCF64D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Indiana Utility Regulatory Commission [Member] </link:label>
<link:label id="lab_duk_IndianaUtilityRegulatoryCommissionMember_21BF01B23D20A3B3BD6F3C50E8FCF64D_documentation_en-US" xlink:label="lab_duk_IndianaUtilityRegulatoryCommissionMember_21BF01B23D20A3B3BD6F3C50E8FCF64D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Indiana Utility Regulatory Commission [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_IndianaUtilityRegulatoryCommissionMember" xlink:label="loc_duk_IndianaUtilityRegulatoryCommissionMember_21BF01B23D20A3B3BD6F3C50E8FCF64D" xlink:type="locator"/>
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<link:label id="lab_duk_TPUCMember_CB8490B226EDC3A19AB13C50E8FC7FAD_terseLabel_en-US" xlink:label="lab_duk_TPUCMember_CB8490B226EDC3A19AB13C50E8FC7FAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> TPUC [Member] </link:label>
<link:label id="lab_duk_TPUCMember_CB8490B226EDC3A19AB13C50E8FC7FAD_label_en-US" xlink:label="lab_duk_TPUCMember_CB8490B226EDC3A19AB13C50E8FC7FAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> TPUC [Member] </link:label>
<link:label id="lab_duk_TPUCMember_CB8490B226EDC3A19AB13C50E8FC7FAD_documentation_en-US" xlink:label="lab_duk_TPUCMember_CB8490B226EDC3A19AB13C50E8FC7FAD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The Tennessee Regulatory Authority (TRA) is charged with the responsibility of setting the rates and service standards of privately owned telephone, natural gas, electric and water utilities. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_TPUCMember" xlink:label="loc_duk_TPUCMember_CB8490B226EDC3A19AB13C50E8FC7FAD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_TPUCMember_CB8490B226EDC3A19AB13C50E8FC7FAD" xlink:to="lab_duk_TPUCMember_CB8490B226EDC3A19AB13C50E8FC7FAD" xlink:type="arc"/>
<link:label id="lab_us-gaap_RegulatoryAssetAxis_8BAA4EF9E7E704DB83193C50E8FC5B13_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetAxis_8BAA4EF9E7E704DB83193C50E8FC5B13" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Regulatory Asset [Axis] </link:label>
<link:label id="lab_us-gaap_RegulatoryAssetAxis_8BAA4EF9E7E704DB83193C50E8FC5B13_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssetAxis_8BAA4EF9E7E704DB83193C50E8FC5B13" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Regulatory Asset [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatoryAssetAxis" xlink:label="loc_us-gaap_RegulatoryAssetAxis_8BAA4EF9E7E704DB83193C50E8FC5B13" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RegulatoryAssetDomain_A16212EA313025C410E13C50E8FC1A53_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetDomain_A16212EA313025C410E13C50E8FC1A53" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Regulatory Asset [Domain] </link:label>
<link:label id="lab_us-gaap_RegulatoryAssetDomain_A16212EA313025C410E13C50E8FC1A53_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssetDomain_A16212EA313025C410E13C50E8FC1A53" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Regulatory Asset [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatoryAssetDomain" xlink:label="loc_us-gaap_RegulatoryAssetDomain_A16212EA313025C410E13C50E8FC1A53" xlink:type="locator"/>
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<link:label id="lab_duk_MGPCostsRegulatoryDisallowanceMember_FE3A881B12BE3B4F3DCD3C50E8FC5385_terseLabel_en-US" xlink:label="lab_duk_MGPCostsRegulatoryDisallowanceMember_FE3A881B12BE3B4F3DCD3C50E8FC5385" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> MGP Costs - Regulatory Disallowance [Member] </link:label>
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<link:loc xlink:href="duk-20190930.xsd#duk_MGPCostsRegulatoryDisallowanceMember" xlink:label="loc_duk_MGPCostsRegulatoryDisallowanceMember_FE3A881B12BE3B4F3DCD3C50E8FC5385" xlink:type="locator"/>
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<link:label id="lab_duk_AssetretirementobligationscoalashMember_A0AA657C847FA9C5236C3C50E8FD6F14_terseLabel_en-US" xlink:label="lab_duk_AssetretirementobligationscoalashMember_A0AA657C847FA9C5236C3C50E8FD6F14" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Asset retirement obligations - coal ash [Member] </link:label>
<link:label id="lab_duk_AssetretirementobligationscoalashMember_A0AA657C847FA9C5236C3C50E8FD6F14_label_en-US" xlink:label="lab_duk_AssetretirementobligationscoalashMember_A0AA657C847FA9C5236C3C50E8FD6F14" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset retirement obligations - coal ash [Member] </link:label>
<link:label id="lab_duk_AssetretirementobligationscoalashMember_A0AA657C847FA9C5236C3C50E8FD6F14_documentation_en-US" xlink:label="lab_duk_AssetretirementobligationscoalashMember_A0AA657C847FA9C5236C3C50E8FD6F14" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Asset retirement obligations - coal ash [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_AssetretirementobligationscoalashMember" xlink:label="loc_duk_AssetretirementobligationscoalashMember_A0AA657C847FA9C5236C3C50E8FD6F14" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DeferredProjectCostsMember_4FB5C437F499C6E7A0AF3C50E8FD6FCD_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredProjectCostsMember_4FB5C437F499C6E7A0AF3C50E8FD6FCD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred Project Costs [Member] </link:label>
<link:label id="lab_us-gaap_DeferredProjectCostsMember_4FB5C437F499C6E7A0AF3C50E8FD6FCD_label_en-US" xlink:label="lab_us-gaap_DeferredProjectCostsMember_4FB5C437F499C6E7A0AF3C50E8FD6FCD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Project Costs [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredProjectCostsMember" xlink:label="loc_us-gaap_DeferredProjectCostsMember_4FB5C437F499C6E7A0AF3C50E8FD6FCD" xlink:type="locator"/>
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<link:label id="lab_duk_DistributionIntegrityManagementProgramMember_060F3A166816251876963C50E8FD5790_terseLabel_en-US" xlink:label="lab_duk_DistributionIntegrityManagementProgramMember_060F3A166816251876963C50E8FD5790" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Distribution Integrity Management Program [Member] </link:label>
<link:label id="lab_duk_DistributionIntegrityManagementProgramMember_060F3A166816251876963C50E8FD5790_label_en-US" xlink:label="lab_duk_DistributionIntegrityManagementProgramMember_060F3A166816251876963C50E8FD5790" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Distribution Integrity Management Program [Member] </link:label>
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<link:label id="lab_srt_RangeAxis_978EDF66621D7F87039B3C50E8FDFBB1_terseLabel_en-US" xlink:label="lab_srt_RangeAxis_978EDF66621D7F87039B3C50E8FDFBB1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statistical Measurement [Axis] </link:label>
<link:label id="lab_srt_RangeAxis_978EDF66621D7F87039B3C50E8FDFBB1_label_en-US" xlink:label="lab_srt_RangeAxis_978EDF66621D7F87039B3C50E8FDFBB1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statistical Measurement [Axis] </link:label>
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<link:label id="lab_srt_RangeMember_1DD41EEA20DAFC1B81233C50E8FD51E1_terseLabel_en-US" xlink:label="lab_srt_RangeMember_1DD41EEA20DAFC1B81233C50E8FD51E1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statistical Measurement [Domain] </link:label>
<link:label id="lab_srt_RangeMember_1DD41EEA20DAFC1B81233C50E8FD51E1_label_en-US" xlink:label="lab_srt_RangeMember_1DD41EEA20DAFC1B81233C50E8FD51E1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statistical Measurement [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_1DD41EEA20DAFC1B81233C50E8FD51E1" xlink:type="locator"/>
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<link:label id="lab_srt_MinimumMember_6414459E30B49EED51073C50E8FEA04D_terseLabel_en-US" xlink:label="lab_srt_MinimumMember_6414459E30B49EED51073C50E8FEA04D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Minimum [Member] </link:label>
<link:label id="lab_srt_MinimumMember_6414459E30B49EED51073C50E8FEA04D_label_en-US" xlink:label="lab_srt_MinimumMember_6414459E30B49EED51073C50E8FEA04D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Minimum [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_6414459E30B49EED51073C50E8FEA04D" xlink:type="locator"/>
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<link:label id="lab_srt_MaximumMember_A8F4A6AB7BCCE4BB2E8F3C50E8FE3275_label_en-US" xlink:label="lab_srt_MaximumMember_A8F4A6AB7BCCE4BB2E8F3C50E8FE3275" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Maximum [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_A8F4A6AB7BCCE4BB2E8F3C50E8FE3275" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_0635CBA3F23977967BC63C50E8FE3CE0_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_0635CBA3F23977967BC63C50E8FE3CE0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party [Axis] </link:label>
<link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_0635CBA3F23977967BC63C50E8FE3CE0_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_0635CBA3F23977967BC63C50E8FE3CE0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_0635CBA3F23977967BC63C50E8FE3CE0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RelatedPartyDomain_6D873419C0EBC8F7479B3C50E8FED6D8_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain_6D873419C0EBC8F7479B3C50E8FED6D8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party [Domain] </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_6D873419C0EBC8F7479B3C50E8FED6D8" xlink:type="locator"/>
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<link:label id="lab_duk_DominionResourcesMember_F5A16F8D4974BEB779E83C50E8FEF1D2_terseLabel_en-US" xlink:label="lab_duk_DominionResourcesMember_F5A16F8D4974BEB779E83C50E8FEF1D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Dominion Resources [Member] </link:label>
<link:label id="lab_duk_DominionResourcesMember_F5A16F8D4974BEB779E83C50E8FEF1D2_label_en-US" xlink:label="lab_duk_DominionResourcesMember_F5A16F8D4974BEB779E83C50E8FEF1D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Dominion Resources [Member] </link:label>
<link:label id="lab_duk_DominionResourcesMember_F5A16F8D4974BEB779E83C50E8FEF1D2_documentation_en-US" xlink:label="lab_duk_DominionResourcesMember_F5A16F8D4974BEB779E83C50E8FEF1D2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Dominion Resources [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DominionResourcesMember" xlink:label="loc_duk_DominionResourcesMember_F5A16F8D4974BEB779E83C50E8FEF1D2" xlink:type="locator"/>
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<link:label id="lab_duk_SouthernCompanyGasMember_627AE65F376450CF51843C50E8FF8252_terseLabel_en-US" xlink:label="lab_duk_SouthernCompanyGasMember_627AE65F376450CF51843C50E8FF8252" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Southern Company Gas [Member] </link:label>
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<link:loc xlink:href="duk-20190930.xsd#duk_SouthernCompanyGasMember" xlink:label="loc_duk_SouthernCompanyGasMember_627AE65F376450CF51843C50E8FF8252" xlink:type="locator"/>
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<link:label id="lab_duk_WilliamsPartnersL.P.Member_0EBFFBCB9A604A4FCCE23C50E8FFC7E5_terseLabel_en-US" xlink:label="lab_duk_WilliamsPartnersL.P.Member_0EBFFBCB9A604A4FCCE23C50E8FFC7E5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Williams Partners L.P. [Member] </link:label>
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<link:loc xlink:href="duk-20190930.xsd#duk_WilliamsPartnersL.P.Member" xlink:label="loc_duk_WilliamsPartnersL.P.Member_0EBFFBCB9A604A4FCCE23C50E8FFC7E5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_JointlyOwnedUtilityPlantAxis_533EEC86356D36B34BDC3C50E8FFDE83_terseLabel_en-US" xlink:label="lab_us-gaap_JointlyOwnedUtilityPlantAxis_533EEC86356D36B34BDC3C50E8FFDE83" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Jointly Owned Utility Plant [Axis] </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_JointlyOwnedUtilityPlantAxis" xlink:label="loc_us-gaap_JointlyOwnedUtilityPlantAxis_533EEC86356D36B34BDC3C50E8FFDE83" xlink:type="locator"/>
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<link:label id="lab_duk_AtlanticCoastPipelineACPMember_D53D8929AC628BE62E613C50E900D0AF_terseLabel_en-US" xlink:label="lab_duk_AtlanticCoastPipelineACPMember_D53D8929AC628BE62E613C50E900D0AF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Atlantic Coast Pipeline (ACP) [Member] </link:label>
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<link:label id="lab_duk_ConstitutionPipelineMember_CA15F21685C3B12B9BD13C50E9001375_label_en-US" xlink:label="lab_duk_ConstitutionPipelineMember_CA15F21685C3B12B9BD13C50E9001375" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Constitution Pipeline [Member] </link:label>
<link:label id="lab_duk_ConstitutionPipelineMember_CA15F21685C3B12B9BD13C50E9001375_documentation_en-US" xlink:label="lab_duk_ConstitutionPipelineMember_CA15F21685C3B12B9BD13C50E9001375" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Constitution Pipeline [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_ConstitutionPipelineMember" xlink:label="loc_duk_ConstitutionPipelineMember_CA15F21685C3B12B9BD13C50E9001375" xlink:type="locator"/>
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<link:label id="lab_duk_GenerationFacilitiesEvaluatedForRetirementMember_5990AC7EBBDA4A10EE6E3C50E906FFF3_terseLabel_en-US" xlink:label="lab_duk_GenerationFacilitiesEvaluatedForRetirementMember_5990AC7EBBDA4A10EE6E3C50E906FFF3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Generation Facilities Evaluated For Retirement [Member] </link:label>
<link:label id="lab_duk_GenerationFacilitiesEvaluatedForRetirementMember_5990AC7EBBDA4A10EE6E3C50E906FFF3_label_en-US" xlink:label="lab_duk_GenerationFacilitiesEvaluatedForRetirementMember_5990AC7EBBDA4A10EE6E3C50E906FFF3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Generation Facilities Evaluated For Retirement [Member] </link:label>
<link:label id="lab_duk_GenerationFacilitiesEvaluatedForRetirementMember_5990AC7EBBDA4A10EE6E3C50E906FFF3_documentation_en-US" xlink:label="lab_duk_GenerationFacilitiesEvaluatedForRetirementMember_5990AC7EBBDA4A10EE6E3C50E906FFF3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Generation Facilities Evaluated For Retirement [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_GenerationFacilitiesEvaluatedForRetirementMember" xlink:label="loc_duk_GenerationFacilitiesEvaluatedForRetirementMember_5990AC7EBBDA4A10EE6E3C50E906FFF3" xlink:type="locator"/>
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<link:label id="lab_duk_CustomersExperiencingOutages_B7840075C64DD0AC1EB03C50E906B103_terseLabel_en-US" xlink:label="lab_duk_CustomersExperiencingOutages_B7840075C64DD0AC1EB03C50E906B103" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Customers experiencing outages </link:label>
<link:label id="lab_duk_CustomersExperiencingOutages_B7840075C64DD0AC1EB03C50E906B103_label_en-US" xlink:label="lab_duk_CustomersExperiencingOutages_B7840075C64DD0AC1EB03C50E906B103" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Customers Experiencing Outages </link:label>
<link:label id="lab_duk_CustomersExperiencingOutages_B7840075C64DD0AC1EB03C50E906B103_documentation_en-US" xlink:label="lab_duk_CustomersExperiencingOutages_B7840075C64DD0AC1EB03C50E906B103" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Customers Experiencing Outages </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_CustomersExperiencingOutages" xlink:label="loc_duk_CustomersExperiencingOutages_B7840075C64DD0AC1EB03C50E906B103" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_CustomersExperiencingOutages_B7840075C64DD0AC1EB03C50E906B103" xlink:to="lab_duk_CustomersExperiencingOutages_B7840075C64DD0AC1EB03C50E906B103" xlink:type="arc"/>
<link:label id="lab_duk_EstimatedStormCostsOperationMaintenance_6A9010C071F55C1400A43C50E906265D_terseLabel_en-US" xlink:label="lab_duk_EstimatedStormCostsOperationMaintenance_6A9010C071F55C1400A43C50E906265D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated storm costs - O&M </link:label>
<link:label id="lab_duk_EstimatedStormCostsOperationMaintenance_6A9010C071F55C1400A43C50E906265D_label_en-US" xlink:label="lab_duk_EstimatedStormCostsOperationMaintenance_6A9010C071F55C1400A43C50E906265D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Estimated Storm Costs - Operation Maintenance </link:label>
<link:label id="lab_duk_EstimatedStormCostsOperationMaintenance_6A9010C071F55C1400A43C50E906265D_documentation_en-US" xlink:label="lab_duk_EstimatedStormCostsOperationMaintenance_6A9010C071F55C1400A43C50E906265D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Estimated Storm Costs - Operation Maintenance </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_EstimatedStormCostsOperationMaintenance" xlink:label="loc_duk_EstimatedStormCostsOperationMaintenance_6A9010C071F55C1400A43C50E906265D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_EstimatedStormCostsOperationMaintenance_6A9010C071F55C1400A43C50E906265D" xlink:to="lab_duk_EstimatedStormCostsOperationMaintenance_6A9010C071F55C1400A43C50E906265D" xlink:type="arc"/>
<link:label id="lab_duk_EstimatedStormCostsCapitalInvestments_314D99526FA45D1BBD003C50E9077AB2_terseLabel_en-US" xlink:label="lab_duk_EstimatedStormCostsCapitalInvestments_314D99526FA45D1BBD003C50E9077AB2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated storm costs - capital investments </link:label>
<link:label id="lab_duk_EstimatedStormCostsCapitalInvestments_314D99526FA45D1BBD003C50E9077AB2_label_en-US" xlink:label="lab_duk_EstimatedStormCostsCapitalInvestments_314D99526FA45D1BBD003C50E9077AB2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Estimated Storm Costs - Capital Investments </link:label>
<link:label id="lab_duk_EstimatedStormCostsCapitalInvestments_314D99526FA45D1BBD003C50E9077AB2_documentation_en-US" xlink:label="lab_duk_EstimatedStormCostsCapitalInvestments_314D99526FA45D1BBD003C50E9077AB2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Estimated Storm Costs - Capital Investments </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_EstimatedStormCostsCapitalInvestments" xlink:label="loc_duk_EstimatedStormCostsCapitalInvestments_314D99526FA45D1BBD003C50E9077AB2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_D8D88263591F6B83F7AB3C50E907702E_verboseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_D8D88263591F6B83F7AB3C50E907702E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Operation, maintenance and other </link:label>
<link:label id="lab_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_D8D88263591F6B83F7AB3C50E907702E_label_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_D8D88263591F6B83F7AB3C50E907702E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_D8D88263591F6B83F7AB3C50E907702E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_D8D88263591F6B83F7AB3C50E907702E" xlink:to="lab_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_D8D88263591F6B83F7AB3C50E907702E" xlink:type="arc"/>
<link:label id="lab_duk_IncreaseDecreaseInStormReserve_67F352AE092C119647813C50E90765ED_negatedTerseLabel_en-US" xlink:label="lab_duk_IncreaseDecreaseInStormReserve_67F352AE092C119647813C50E90765ED" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Decrease in storm reserve </link:label>
<link:label id="lab_duk_IncreaseDecreaseInStormReserve_67F352AE092C119647813C50E90765ED_label_en-US" xlink:label="lab_duk_IncreaseDecreaseInStormReserve_67F352AE092C119647813C50E90765ED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) In Storm Reserve </link:label>
<link:label id="lab_duk_IncreaseDecreaseInStormReserve_67F352AE092C119647813C50E90765ED_documentation_en-US" xlink:label="lab_duk_IncreaseDecreaseInStormReserve_67F352AE092C119647813C50E90765ED" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) In Storm Reserve </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_IncreaseDecreaseInStormReserve" xlink:label="loc_duk_IncreaseDecreaseInStormReserve_67F352AE092C119647813C50E90765ED" xlink:type="locator"/>
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<link:label id="lab_us-gaap_UtilitiesOperatingExpense_7B90F221D77A2A8362983C50E9076C99_terseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpense_7B90F221D77A2A8362983C50E9076C99" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Utilities operating expense </link:label>
<link:label id="lab_us-gaap_UtilitiesOperatingExpense_7B90F221D77A2A8362983C50E9076C99_label_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpense_7B90F221D77A2A8362983C50E9076C99" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Utilities Operating Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UtilitiesOperatingExpense" xlink:label="loc_us-gaap_UtilitiesOperatingExpense_7B90F221D77A2A8362983C50E9076C99" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilitiesOperatingExpense_7B90F221D77A2A8362983C50E9076C99" xlink:to="lab_us-gaap_UtilitiesOperatingExpense_7B90F221D77A2A8362983C50E9076C99" xlink:type="arc"/>
<link:label id="lab_duk_PenaltyAssessed_7085F14B68F50B26950B3C50E907778D_terseLabel_en-US" xlink:label="lab_duk_PenaltyAssessed_7085F14B68F50B26950B3C50E907778D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Penalty assessed </link:label>
<link:label id="lab_duk_PenaltyAssessed_7085F14B68F50B26950B3C50E907778D_label_en-US" xlink:label="lab_duk_PenaltyAssessed_7085F14B68F50B26950B3C50E907778D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Penalty Assessed </link:label>
<link:label id="lab_duk_PenaltyAssessed_7085F14B68F50B26950B3C50E907778D_documentation_en-US" xlink:label="lab_duk_PenaltyAssessed_7085F14B68F50B26950B3C50E907778D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Penalty Assessed </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PenaltyAssessed" xlink:label="loc_duk_PenaltyAssessed_7085F14B68F50B26950B3C50E907778D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PenaltyAssessed_7085F14B68F50B26950B3C50E907778D" xlink:to="lab_duk_PenaltyAssessed_7085F14B68F50B26950B3C50E907778D" xlink:type="arc"/>
<link:label id="lab_duk_PublicUtilitiesReductionOfAnnualRecoveryOfDeferredCoalAshCosts_6132223F4446951D51F53C50E908B740_terseLabel_en-US" xlink:label="lab_duk_PublicUtilitiesReductionOfAnnualRecoveryOfDeferredCoalAshCosts_6132223F4446951D51F53C50E908B740" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Reduction of annual recovery of deferred coal ash costs </link:label>
<link:label id="lab_duk_PublicUtilitiesReductionOfAnnualRecoveryOfDeferredCoalAshCosts_6132223F4446951D51F53C50E908B740_label_en-US" xlink:label="lab_duk_PublicUtilitiesReductionOfAnnualRecoveryOfDeferredCoalAshCosts_6132223F4446951D51F53C50E908B740" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Reduction Of Annual Recovery Of Deferred Coal Ash Costs </link:label>
<link:label id="lab_duk_PublicUtilitiesReductionOfAnnualRecoveryOfDeferredCoalAshCosts_6132223F4446951D51F53C50E908B740_documentation_en-US" xlink:label="lab_duk_PublicUtilitiesReductionOfAnnualRecoveryOfDeferredCoalAshCosts_6132223F4446951D51F53C50E908B740" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Utilities, Reduction Of Annual Recovery Of Deferred Coal Ash Costs </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PublicUtilitiesReductionOfAnnualRecoveryOfDeferredCoalAshCosts" xlink:label="loc_duk_PublicUtilitiesReductionOfAnnualRecoveryOfDeferredCoalAshCosts_6132223F4446951D51F53C50E908B740" xlink:type="locator"/>
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<link:label id="lab_duk_Estimatedcapitalcost_51225EBF61B493C00C293C50E908FF71_terseLabel_en-US" xlink:label="lab_duk_Estimatedcapitalcost_51225EBF61B493C00C293C50E908FF71" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated capital cost </link:label>
<link:label id="lab_duk_Estimatedcapitalcost_51225EBF61B493C00C293C50E908FF71_label_en-US" xlink:label="lab_duk_Estimatedcapitalcost_51225EBF61B493C00C293C50E908FF71" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Estimated capital cost </link:label>
<link:label id="lab_duk_Estimatedcapitalcost_51225EBF61B493C00C293C50E908FF71_documentation_en-US" xlink:label="lab_duk_Estimatedcapitalcost_51225EBF61B493C00C293C50E908FF71" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Estimated capital cost of new project </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_Estimatedcapitalcost" xlink:label="loc_duk_Estimatedcapitalcost_51225EBF61B493C00C293C50E908FF71" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount_34C48BBF1FE0771282333C50E9086F8B_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount_34C48BBF1FE0771282333C50E9086F8B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Requested rate increase (decrease), amount </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount_34C48BBF1FE0771282333C50E9086F8B_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount_34C48BBF1FE0771282333C50E9086F8B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount" xlink:label="loc_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount_34C48BBF1FE0771282333C50E9086F8B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreasePercentage_A0E6D8495348E3A6FF8E3C50E908638F_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreasePercentage_A0E6D8495348E3A6FF8E3C50E908638F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Requested rate increase, percentage </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreasePercentage_A0E6D8495348E3A6FF8E3C50E908638F_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreasePercentage_A0E6D8495348E3A6FF8E3C50E908638F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesRequestedRateIncreaseDecreasePercentage" xlink:label="loc_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreasePercentage_A0E6D8495348E3A6FF8E3C50E908638F" xlink:type="locator"/>
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<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreasePercentageNetOfTax_1EDF051416EBDCD3F0B73C50E9088623_terseLabel_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreasePercentageNetOfTax_1EDF051416EBDCD3F0B73C50E9088623" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Requested rate increase, percentage, net of tax </link:label>
<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreasePercentageNetOfTax_1EDF051416EBDCD3F0B73C50E9088623_label_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreasePercentageNetOfTax_1EDF051416EBDCD3F0B73C50E9088623" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Percentage, Net Of Tax </link:label>
<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreasePercentageNetOfTax_1EDF051416EBDCD3F0B73C50E9088623_documentation_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreasePercentageNetOfTax_1EDF051416EBDCD3F0B73C50E9088623" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Percentage, Net Of Tax </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PublicUtilitiesRequestedRateIncreaseDecreasePercentageNetOfTax" xlink:label="loc_duk_PublicUtilitiesRequestedRateIncreaseDecreasePercentageNetOfTax_1EDF051416EBDCD3F0B73C50E9088623" xlink:type="locator"/>
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<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseGrossAmount_381DABE9207CC6E80D803C50E908B089_terseLabel_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseGrossAmount_381DABE9207CC6E80D803C50E908B089" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Requested rate increase (decrease), gross amount </link:label>
<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseGrossAmount_381DABE9207CC6E80D803C50E908B089_label_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseGrossAmount_381DABE9207CC6E80D803C50E908B089" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Gross Amount </link:label>
<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseGrossAmount_381DABE9207CC6E80D803C50E908B089_documentation_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseGrossAmount_381DABE9207CC6E80D803C50E908B089" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Gross Amount </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PublicUtilitiesRequestedRateIncreaseDecreaseGrossAmount" xlink:label="loc_duk_PublicUtilitiesRequestedRateIncreaseDecreaseGrossAmount_381DABE9207CC6E80D803C50E908B089" xlink:type="locator"/>
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<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReduction_1E684416820503B623C53C50E909B35D_terseLabel_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReduction_1E684416820503B623C53C50E909B35D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Requested rate increase (decrease), rider reduction </link:label>
<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReduction_1E684416820503B623C53C50E909B35D_label_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReduction_1E684416820503B623C53C50E909B35D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Rider Reduction </link:label>
<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReduction_1E684416820503B623C53C50E909B35D_documentation_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReduction_1E684416820503B623C53C50E909B35D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Rider Reduction </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReduction" xlink:label="loc_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReduction_1E684416820503B623C53C50E909B35D" xlink:type="locator"/>
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<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReductionTaxCutsAndJobsActAndReturnDeferredRevenue_44060EC77C62252094463C50E9096DFF_terseLabel_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReductionTaxCutsAndJobsActAndReturnDeferredRevenue_44060EC77C62252094463C50E9096DFF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Requested rate increase (decrease), rider reduction, TCJA and return deferred revenue </link:label>
<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReductionTaxCutsAndJobsActAndReturnDeferredRevenue_44060EC77C62252094463C50E9096DFF_label_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReductionTaxCutsAndJobsActAndReturnDeferredRevenue_44060EC77C62252094463C50E9096DFF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Rider Reduction, Tax Cuts And Jobs Act And Return Deferred Revenue </link:label>
<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReductionTaxCutsAndJobsActAndReturnDeferredRevenue_44060EC77C62252094463C50E9096DFF_documentation_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReductionTaxCutsAndJobsActAndReturnDeferredRevenue_44060EC77C62252094463C50E9096DFF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Rider Reduction, Tax Cuts And Jobs Act And Return Deferred Revenue </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReductionTaxCutsAndJobsActAndReturnDeferredRevenue" xlink:label="loc_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReductionTaxCutsAndJobsActAndReturnDeferredRevenue_44060EC77C62252094463C50E9096DFF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReductionTaxCutsAndJobsActAndReturnDeferredRevenue_44060EC77C62252094463C50E9096DFF" xlink:to="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseRiderReductionTaxCutsAndJobsActAndReturnDeferredRevenue_44060EC77C62252094463C50E9096DFF" xlink:type="arc"/>
<link:label id="lab_duk_PublicUtilitiesDisclosureOfRateMattersRateBase_E5D00FAF27ECB507D11D3C50E909129B_terseLabel_en-US" xlink:label="lab_duk_PublicUtilitiesDisclosureOfRateMattersRateBase_E5D00FAF27ECB507D11D3C50E909129B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Rate base </link:label>
<link:label id="lab_duk_PublicUtilitiesDisclosureOfRateMattersRateBase_E5D00FAF27ECB507D11D3C50E909129B_label_en-US" xlink:label="lab_duk_PublicUtilitiesDisclosureOfRateMattersRateBase_E5D00FAF27ECB507D11D3C50E909129B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Disclosure Of Rate Matters, Rate Base </link:label>
<link:label id="lab_duk_PublicUtilitiesDisclosureOfRateMattersRateBase_E5D00FAF27ECB507D11D3C50E909129B_documentation_en-US" xlink:label="lab_duk_PublicUtilitiesDisclosureOfRateMattersRateBase_E5D00FAF27ECB507D11D3C50E909129B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Utilities, Disclosure Of Rate Matters, Rate Base </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PublicUtilitiesDisclosureOfRateMattersRateBase" xlink:label="loc_duk_PublicUtilitiesDisclosureOfRateMattersRateBase_E5D00FAF27ECB507D11D3C50E909129B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PublicUtilitiesDisclosureOfRateMattersRateBase_E5D00FAF27ECB507D11D3C50E909129B" xlink:to="lab_duk_PublicUtilitiesDisclosureOfRateMattersRateBase_E5D00FAF27ECB507D11D3C50E909129B" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage_3295BD96998D03294D6E3C50E90934A9_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage_3295BD96998D03294D6E3C50E90934A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Requested return on equity, percent </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage_3295BD96998D03294D6E3C50E90934A9_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage_3295BD96998D03294D6E3C50E90934A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Return on Equity, Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage" xlink:label="loc_us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage_3295BD96998D03294D6E3C50E90934A9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage_3295BD96998D03294D6E3C50E90934A9" xlink:to="lab_us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage_3295BD96998D03294D6E3C50E90934A9" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedEquityCapitalStructurePercentage_B491BBED626E670383EF3C50E9090514_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedEquityCapitalStructurePercentage_B491BBED626E670383EF3C50E9090514" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public utilities, requested equity capital structure, percentage </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedEquityCapitalStructurePercentage_B491BBED626E670383EF3C50E9090514_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedEquityCapitalStructurePercentage_B491BBED626E670383EF3C50E9090514" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Equity Capital Structure, Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesRequestedEquityCapitalStructurePercentage" xlink:label="loc_us-gaap_PublicUtilitiesRequestedEquityCapitalStructurePercentage_B491BBED626E670383EF3C50E9090514" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesRequestedEquityCapitalStructurePercentage_B491BBED626E670383EF3C50E9090514" xlink:to="lab_us-gaap_PublicUtilitiesRequestedEquityCapitalStructurePercentage_B491BBED626E670383EF3C50E9090514" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedDebtCapitalStructurePercentage_3E4CBB8FD87A2B1218F23C50E90AD2B7_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedDebtCapitalStructurePercentage_3E4CBB8FD87A2B1218F23C50E90AD2B7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public utilities, requested debt capital structure, percentage </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedDebtCapitalStructurePercentage_3E4CBB8FD87A2B1218F23C50E90AD2B7_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedDebtCapitalStructurePercentage_3E4CBB8FD87A2B1218F23C50E90AD2B7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Debt Capital Structure, Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesRequestedDebtCapitalStructurePercentage" xlink:label="loc_us-gaap_PublicUtilitiesRequestedDebtCapitalStructurePercentage_3E4CBB8FD87A2B1218F23C50E90AD2B7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesRequestedDebtCapitalStructurePercentage_3E4CBB8FD87A2B1218F23C50E90AD2B7" xlink:to="lab_us-gaap_PublicUtilitiesRequestedDebtCapitalStructurePercentage_3E4CBB8FD87A2B1218F23C50E90AD2B7" xlink:type="arc"/>
<link:label id="lab_duk_RequestedRiderRevenueIncrease_E3CA06F73288C9F435393C50E90AC91A_terseLabel_en-US" xlink:label="lab_duk_RequestedRiderRevenueIncrease_E3CA06F73288C9F435393C50E90AC91A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Requested Rider Revenue Increase </link:label>
<link:label id="lab_duk_RequestedRiderRevenueIncrease_E3CA06F73288C9F435393C50E90AC91A_label_en-US" xlink:label="lab_duk_RequestedRiderRevenueIncrease_E3CA06F73288C9F435393C50E90AC91A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Requested Rider Revenue Increase </link:label>
<link:label id="lab_duk_RequestedRiderRevenueIncrease_E3CA06F73288C9F435393C50E90AC91A_documentation_en-US" xlink:label="lab_duk_RequestedRiderRevenueIncrease_E3CA06F73288C9F435393C50E90AC91A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Requested Rider Revenue Increase </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_RequestedRiderRevenueIncrease" xlink:label="loc_duk_RequestedRiderRevenueIncrease_E3CA06F73288C9F435393C50E90AC91A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_RequestedRiderRevenueIncrease_E3CA06F73288C9F435393C50E90AC91A" xlink:to="lab_duk_RequestedRiderRevenueIncrease_E3CA06F73288C9F435393C50E90AC91A" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage_438D319DD00DD51A9CE93C50E90AD451_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage_438D319DD00DD51A9CE93C50E90AD451" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public utilities, approved equity capital structure, percentage </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage_438D319DD00DD51A9CE93C50E90AD451_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage_438D319DD00DD51A9CE93C50E90AD451" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Approved Equity Capital Structure, Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage" xlink:label="loc_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage_438D319DD00DD51A9CE93C50E90AD451" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesApprovedDebtCapitalStructurePercentage_E27B06D49128F396252A3C50E90A17BC_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedDebtCapitalStructurePercentage_E27B06D49128F396252A3C50E90A17BC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public utilities, approved debt capital structure, percentage </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesApprovedDebtCapitalStructurePercentage_E27B06D49128F396252A3C50E90A17BC_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedDebtCapitalStructurePercentage_E27B06D49128F396252A3C50E90A17BC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Approved Debt Capital Structure, Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesApprovedDebtCapitalStructurePercentage" xlink:label="loc_us-gaap_PublicUtilitiesApprovedDebtCapitalStructurePercentage_E27B06D49128F396252A3C50E90A17BC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesApprovedDebtCapitalStructurePercentage_E27B06D49128F396252A3C50E90A17BC" xlink:to="lab_us-gaap_PublicUtilitiesApprovedDebtCapitalStructurePercentage_E27B06D49128F396252A3C50E90A17BC" xlink:type="arc"/>
<link:label id="lab_duk_PublicUtilitiesRegulatoryAssetAmountofRecoveryCostsDisallowed_4E88DBE03C2A1B8DBE0E3C50E90ABCC0_terseLabel_en-US" xlink:label="lab_duk_PublicUtilitiesRegulatoryAssetAmountofRecoveryCostsDisallowed_4E88DBE03C2A1B8DBE0E3C50E90ABCC0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Recovery costs denied </link:label>
<link:label id="lab_duk_PublicUtilitiesRegulatoryAssetAmountofRecoveryCostsDisallowed_4E88DBE03C2A1B8DBE0E3C50E90ABCC0_label_en-US" xlink:label="lab_duk_PublicUtilitiesRegulatoryAssetAmountofRecoveryCostsDisallowed_4E88DBE03C2A1B8DBE0E3C50E90ABCC0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Regulatory Asset, Amount of Recovery Costs Disallowed </link:label>
<link:label id="lab_duk_PublicUtilitiesRegulatoryAssetAmountofRecoveryCostsDisallowed_4E88DBE03C2A1B8DBE0E3C50E90ABCC0_documentation_en-US" xlink:label="lab_duk_PublicUtilitiesRegulatoryAssetAmountofRecoveryCostsDisallowed_4E88DBE03C2A1B8DBE0E3C50E90ABCC0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Utilities, Regulatory Asset, Amount of Recovery Costs Disallowed </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PublicUtilitiesRegulatoryAssetAmountofRecoveryCostsDisallowed" xlink:label="loc_duk_PublicUtilitiesRegulatoryAssetAmountofRecoveryCostsDisallowed_4E88DBE03C2A1B8DBE0E3C50E90ABCC0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RegulatoryAssets_845FD2012B48559A1DE53C50E90A6016_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssets_845FD2012B48559A1DE53C50E90A6016" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Regulatory assets </link:label>
<link:label id="lab_us-gaap_RegulatoryAssets_845FD2012B48559A1DE53C50E90A6016_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssets_845FD2012B48559A1DE53C50E90A6016" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Regulatory Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatoryAssets" xlink:label="loc_us-gaap_RegulatoryAssets_845FD2012B48559A1DE53C50E90A6016" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RegulatoryAssetAmortizationPeriod_FDC5E393535F8ABEEE483C50E90B54D1_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetAmortizationPeriod_FDC5E393535F8ABEEE483C50E90B54D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Regulatory asset, amortization period </link:label>
<link:label id="lab_us-gaap_RegulatoryAssetAmortizationPeriod_FDC5E393535F8ABEEE483C50E90B54D1_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssetAmortizationPeriod_FDC5E393535F8ABEEE483C50E90B54D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Regulatory Asset, Amortization Period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatoryAssetAmortizationPeriod" xlink:label="loc_us-gaap_RegulatoryAssetAmortizationPeriod_FDC5E393535F8ABEEE483C50E90B54D1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CustomerRefundableFeesRefundPayments1_1AE934AFFA2418CB3DAD3C50E90BEE91_terseLabel_en-US" xlink:label="lab_us-gaap_CustomerRefundableFeesRefundPayments1_1AE934AFFA2418CB3DAD3C50E90BEE91" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Customer refundable fees, refund payments </link:label>
<link:label id="lab_us-gaap_CustomerRefundableFeesRefundPayments1_1AE934AFFA2418CB3DAD3C50E90BEE91_label_en-US" xlink:label="lab_us-gaap_CustomerRefundableFeesRefundPayments1_1AE934AFFA2418CB3DAD3C50E90BEE91" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Customer Refundable Fees, Refund Payments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CustomerRefundableFeesRefundPayments1" xlink:label="loc_us-gaap_CustomerRefundableFeesRefundPayments1_1AE934AFFA2418CB3DAD3C50E90BEE91" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CustomerRefundableFeesRefundPayments1_1AE934AFFA2418CB3DAD3C50E90BEE91" xlink:to="lab_us-gaap_CustomerRefundableFeesRefundPayments1_1AE934AFFA2418CB3DAD3C50E90BEE91" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_13B47AB925F525769E2E3C50E90BA88D_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_13B47AB925F525769E2E3C50E90BA88D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Approved rate increase (decrease), amount </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_13B47AB925F525769E2E3C50E90BA88D_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_13B47AB925F525769E2E3C50E90BA88D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Approved Rate Increase (Decrease), Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount" xlink:label="loc_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_13B47AB925F525769E2E3C50E90BA88D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_13B47AB925F525769E2E3C50E90BA88D" xlink:to="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_13B47AB925F525769E2E3C50E90BA88D" xlink:type="arc"/>
<link:label id="lab_us-gaap_JointlyOwnedUtilityPlantProportionateOwnershipShare_B8BE0115D720387890EB3C50E90BE791_terseLabel_en-US" xlink:label="lab_us-gaap_JointlyOwnedUtilityPlantProportionateOwnershipShare_B8BE0115D720387890EB3C50E90BE791" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Joint owner ownership percentage </link:label>
<link:label id="lab_us-gaap_JointlyOwnedUtilityPlantProportionateOwnershipShare_B8BE0115D720387890EB3C50E90BE791_label_en-US" xlink:label="lab_us-gaap_JointlyOwnedUtilityPlantProportionateOwnershipShare_B8BE0115D720387890EB3C50E90BE791" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Jointly Owned Utility Plant, Proportionate Ownership Share </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_JointlyOwnedUtilityPlantProportionateOwnershipShare" xlink:label="loc_us-gaap_JointlyOwnedUtilityPlantProportionateOwnershipShare_B8BE0115D720387890EB3C50E90BE791" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantProportionateOwnershipShare_B8BE0115D720387890EB3C50E90BE791" xlink:to="lab_us-gaap_JointlyOwnedUtilityPlantProportionateOwnershipShare_B8BE0115D720387890EB3C50E90BE791" xlink:type="arc"/>
<link:label id="lab_duk_EstimatedlossonAssetSale_76448DDE1AEE022910653C50E90BA804_terseLabel_en-US" xlink:label="lab_duk_EstimatedlossonAssetSale_76448DDE1AEE022910653C50E90BA804" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated loss on asset sale </link:label>
<link:label id="lab_duk_EstimatedlossonAssetSale_76448DDE1AEE022910653C50E90BA804_label_en-US" xlink:label="lab_duk_EstimatedlossonAssetSale_76448DDE1AEE022910653C50E90BA804" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Estimated loss on Asset Sale </link:label>
<link:label id="lab_duk_EstimatedlossonAssetSale_76448DDE1AEE022910653C50E90BA804_documentation_en-US" xlink:label="lab_duk_EstimatedlossonAssetSale_76448DDE1AEE022910653C50E90BA804" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Estimated loss on Asset Sale </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_EstimatedlossonAssetSale" xlink:label="loc_duk_EstimatedlossonAssetSale_76448DDE1AEE022910653C50E90BA804" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_EstimatedlossonAssetSale_76448DDE1AEE022910653C50E90BA804" xlink:to="lab_duk_EstimatedlossonAssetSale_76448DDE1AEE022910653C50E90BA804" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount_9511263E661B68D357943C50E90B90AD_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount_9511263E661B68D357943C50E90B90AD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Requested rate increase (decrease), amended amount </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount_9511263E661B68D357943C50E90B90AD_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount_9511263E661B68D357943C50E90B90AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Amended, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount" xlink:label="loc_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount_9511263E661B68D357943C50E90B90AD" xlink:type="locator"/>
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<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseAmountAmendedFromInitialRequest_DD0D4192F29D822A536E3C50E90C42E0_negatedTerseLabel_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseAmountAmendedFromInitialRequest_DD0D4192F29D822A536E3C50E90C42E0" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Amount reduced from initial request </link:label>
<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseAmountAmendedFromInitialRequest_DD0D4192F29D822A536E3C50E90C42E0_label_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseAmountAmendedFromInitialRequest_DD0D4192F29D822A536E3C50E90C42E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Amount Amended From Initial Request </link:label>
<link:label id="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseAmountAmendedFromInitialRequest_DD0D4192F29D822A536E3C50E90C42E0_documentation_en-US" xlink:label="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseAmountAmendedFromInitialRequest_DD0D4192F29D822A536E3C50E90C42E0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Amount Amended From Initial Request </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PublicUtilitiesRequestedRateIncreaseDecreaseAmountAmendedFromInitialRequest" xlink:label="loc_duk_PublicUtilitiesRequestedRateIncreaseDecreaseAmountAmendedFromInitialRequest_DD0D4192F29D822A536E3C50E90C42E0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PublicUtilitiesRequestedRateIncreaseDecreaseAmountAmendedFromInitialRequest_DD0D4192F29D822A536E3C50E90C42E0" xlink:to="lab_duk_PublicUtilitiesRequestedRateIncreaseDecreaseAmountAmendedFromInitialRequest_DD0D4192F29D822A536E3C50E90C42E0" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedPercentage_F2DDF6E6367029FB5ECE3C50E90C141A_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedPercentage_F2DDF6E6367029FB5ECE3C50E90C141A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Requested rate increase (decrease) amended, percentage </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedPercentage_F2DDF6E6367029FB5ECE3C50E90C141A_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedPercentage_F2DDF6E6367029FB5ECE3C50E90C141A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Requested Rate Increase (Decrease), Amended, Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedPercentage" xlink:label="loc_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedPercentage_F2DDF6E6367029FB5ECE3C50E90C141A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedPercentage_F2DDF6E6367029FB5ECE3C50E90C141A" xlink:to="lab_us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedPercentage_F2DDF6E6367029FB5ECE3C50E90C141A" xlink:type="arc"/>
<link:label id="lab_duk_EstimatedStormCostsCapitalandOperationMaintenance_A056F08ADD468684987C3C50E90C9F7C_terseLabel_en-US" xlink:label="lab_duk_EstimatedStormCostsCapitalandOperationMaintenance_A056F08ADD468684987C3C50E90C9F7C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated storm costs - capital and operation maintenance </link:label>
<link:label id="lab_duk_EstimatedStormCostsCapitalandOperationMaintenance_A056F08ADD468684987C3C50E90C9F7C_label_en-US" xlink:label="lab_duk_EstimatedStormCostsCapitalandOperationMaintenance_A056F08ADD468684987C3C50E90C9F7C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Estimated Storm Costs - Capital and Operation Maintenance </link:label>
<link:label id="lab_duk_EstimatedStormCostsCapitalandOperationMaintenance_A056F08ADD468684987C3C50E90C9F7C_documentation_en-US" xlink:label="lab_duk_EstimatedStormCostsCapitalandOperationMaintenance_A056F08ADD468684987C3C50E90C9F7C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Estimated Storm Costs - Capital and Operation Maintenance </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_EstimatedStormCostsCapitalandOperationMaintenance" xlink:label="loc_duk_EstimatedStormCostsCapitalandOperationMaintenance_A056F08ADD468684987C3C50E90C9F7C" xlink:type="locator"/>
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<link:label id="lab_duk_AllowedStormReserve_08512BFEC4806B72E7B63C50E90C5EF7_terseLabel_en-US" xlink:label="lab_duk_AllowedStormReserve_08512BFEC4806B72E7B63C50E90C5EF7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Allowed storm reserve </link:label>
<link:label id="lab_duk_AllowedStormReserve_08512BFEC4806B72E7B63C50E90C5EF7_label_en-US" xlink:label="lab_duk_AllowedStormReserve_08512BFEC4806B72E7B63C50E90C5EF7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Allowed Storm Reserve </link:label>
<link:label id="lab_duk_AllowedStormReserve_08512BFEC4806B72E7B63C50E90C5EF7_documentation_en-US" xlink:label="lab_duk_AllowedStormReserve_08512BFEC4806B72E7B63C50E90C5EF7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Allowed Storm Reserve </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_AllowedStormReserve" xlink:label="loc_duk_AllowedStormReserve_08512BFEC4806B72E7B63C50E90C5EF7" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_DCF9DD1518AA29CED7663C50E90C1F5A_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_DCF9DD1518AA29CED7663C50E90C1F5A" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Loss before income taxes </link:label>
<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_DCF9DD1518AA29CED7663C50E90C1F5A_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_DCF9DD1518AA29CED7663C50E90C1F5A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_DCF9DD1518AA29CED7663C50E90C1F5A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_0AD4944457DAF60954CE3C50E90C80B6_verboseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_0AD4944457DAF60954CE3C50E90C80B6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Approved return on equity percentage </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_0AD4944457DAF60954CE3C50E90C80B6_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_0AD4944457DAF60954CE3C50E90C80B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Approved Return on Equity, Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage" xlink:label="loc_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_0AD4944457DAF60954CE3C50E90C80B6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_0AD4944457DAF60954CE3C50E90C80B6" xlink:to="lab_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_0AD4944457DAF60954CE3C50E90C80B6" xlink:type="arc"/>
<link:label id="lab_duk_GenerationFacilitiesToBeRetiredNet_219A8E0B25E58C443AEE3C50E90D46EA_verboseLabel_en-US" xlink:label="lab_duk_GenerationFacilitiesToBeRetiredNet_219A8E0B25E58C443AEE3C50E90D46EA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Generation facilities to be retired, net </link:label>
<link:label id="lab_duk_GenerationFacilitiesToBeRetiredNet_219A8E0B25E58C443AEE3C50E90D46EA_label_en-US" xlink:label="lab_duk_GenerationFacilitiesToBeRetiredNet_219A8E0B25E58C443AEE3C50E90D46EA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Generation Facilities To Be Retired Net </link:label>
<link:label id="lab_duk_GenerationFacilitiesToBeRetiredNet_219A8E0B25E58C443AEE3C50E90D46EA_documentation_en-US" xlink:label="lab_duk_GenerationFacilitiesToBeRetiredNet_219A8E0B25E58C443AEE3C50E90D46EA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Generation facilities to be retired, net </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_GenerationFacilitiesToBeRetiredNet" xlink:label="loc_duk_GenerationFacilitiesToBeRetiredNet_219A8E0B25E58C443AEE3C50E90D46EA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_GenerationFacilitiesToBeRetiredNet_219A8E0B25E58C443AEE3C50E90D46EA" xlink:to="lab_duk_GenerationFacilitiesToBeRetiredNet_219A8E0B25E58C443AEE3C50E90D46EA" xlink:type="arc"/>
<link:label id="lab_duk_TaxActAnnualTaxSavingsRequestedRateDecreaseAmount_E3385F0BA040D068A9233C50E90DE109_terseLabel_en-US" xlink:label="lab_duk_TaxActAnnualTaxSavingsRequestedRateDecreaseAmount_E3385F0BA040D068A9233C50E90DE109" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tax act annual savings </link:label>
<link:label id="lab_duk_TaxActAnnualTaxSavingsRequestedRateDecreaseAmount_E3385F0BA040D068A9233C50E90DE109_label_en-US" xlink:label="lab_duk_TaxActAnnualTaxSavingsRequestedRateDecreaseAmount_E3385F0BA040D068A9233C50E90DE109" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tax Act Annual Tax Savings Requested Rate Decrease, Amount </link:label>
<link:label id="lab_duk_TaxActAnnualTaxSavingsRequestedRateDecreaseAmount_E3385F0BA040D068A9233C50E90DE109_documentation_en-US" xlink:label="lab_duk_TaxActAnnualTaxSavingsRequestedRateDecreaseAmount_E3385F0BA040D068A9233C50E90DE109" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tax Act Annual Tax Savings requested rate decrease as a result of the 2017 Federal Tax Cut and Jobs Act </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_TaxActAnnualTaxSavingsRequestedRateDecreaseAmount" xlink:label="loc_duk_TaxActAnnualTaxSavingsRequestedRateDecreaseAmount_E3385F0BA040D068A9233C50E90DE109" xlink:type="locator"/>
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<link:label id="lab_duk_TaxActExcessDeferredTaxAmortizationRequestedRateDecreaseAmount_CFBFEF5E7EFE8F22C3DB3C50E90DE600_terseLabel_en-US" xlink:label="lab_duk_TaxActExcessDeferredTaxAmortizationRequestedRateDecreaseAmount_CFBFEF5E7EFE8F22C3DB3C50E90DE600" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tax act excess deferred tax amortization requested rate decrease, amount </link:label>
<link:label id="lab_duk_TaxActExcessDeferredTaxAmortizationRequestedRateDecreaseAmount_CFBFEF5E7EFE8F22C3DB3C50E90DE600_label_en-US" xlink:label="lab_duk_TaxActExcessDeferredTaxAmortizationRequestedRateDecreaseAmount_CFBFEF5E7EFE8F22C3DB3C50E90DE600" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tax Act Excess Deferred Tax Amortization Requested Rate Decrease, Amount </link:label>
<link:label id="lab_duk_TaxActExcessDeferredTaxAmortizationRequestedRateDecreaseAmount_CFBFEF5E7EFE8F22C3DB3C50E90DE600_documentation_en-US" xlink:label="lab_duk_TaxActExcessDeferredTaxAmortizationRequestedRateDecreaseAmount_CFBFEF5E7EFE8F22C3DB3C50E90DE600" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tax Act Excess Deferred Tax Amortization requested rate decrease as a result of the 2017 Federal Tax Cut and Jobs Act </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_TaxActExcessDeferredTaxAmortizationRequestedRateDecreaseAmount" xlink:label="loc_duk_TaxActExcessDeferredTaxAmortizationRequestedRateDecreaseAmount_CFBFEF5E7EFE8F22C3DB3C50E90DE600" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_TaxActExcessDeferredTaxAmortizationRequestedRateDecreaseAmount_CFBFEF5E7EFE8F22C3DB3C50E90DE600" xlink:to="lab_duk_TaxActExcessDeferredTaxAmortizationRequestedRateDecreaseAmount_CFBFEF5E7EFE8F22C3DB3C50E90DE600" xlink:type="arc"/>
<link:label id="lab_us-gaap_RegulatedOperatingRevenueElectricNonNuclear_733065B014FE9EDCEEC23C50E90D2DA9_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatedOperatingRevenueElectricNonNuclear_733065B014FE9EDCEEC23C50E90D2DA9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Regulated operating revenue, electric, non-nuclear </link:label>
<link:label id="lab_us-gaap_RegulatedOperatingRevenueElectricNonNuclear_733065B014FE9EDCEEC23C50E90D2DA9_label_en-US" xlink:label="lab_us-gaap_RegulatedOperatingRevenueElectricNonNuclear_733065B014FE9EDCEEC23C50E90D2DA9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Regulated Operating Revenue, Electric, Non-Nuclear </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatedOperatingRevenueElectricNonNuclear" xlink:label="loc_us-gaap_RegulatedOperatingRevenueElectricNonNuclear_733065B014FE9EDCEEC23C50E90D2DA9" xlink:type="locator"/>
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<link:label id="lab_duk_ApprovedRateIncreaseDecreaseOneTimeWaiverAmount_D9F43B2C5F7272CC21E23C50E90ECBFB_terseLabel_en-US" xlink:label="lab_duk_ApprovedRateIncreaseDecreaseOneTimeWaiverAmount_D9F43B2C5F7272CC21E23C50E90ECBFB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Approved rate increase (decrease), one-time waiver amount </link:label>
<link:label id="lab_duk_ApprovedRateIncreaseDecreaseOneTimeWaiverAmount_D9F43B2C5F7272CC21E23C50E90ECBFB_label_en-US" xlink:label="lab_duk_ApprovedRateIncreaseDecreaseOneTimeWaiverAmount_D9F43B2C5F7272CC21E23C50E90ECBFB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Approved Rate Increase (Decrease), One Time Waiver, Amount </link:label>
<link:label id="lab_duk_ApprovedRateIncreaseDecreaseOneTimeWaiverAmount_D9F43B2C5F7272CC21E23C50E90ECBFB_documentation_en-US" xlink:label="lab_duk_ApprovedRateIncreaseDecreaseOneTimeWaiverAmount_D9F43B2C5F7272CC21E23C50E90ECBFB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Approved Rate Increase (Decrease) One Time Waiver, Amount </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_ApprovedRateIncreaseDecreaseOneTimeWaiverAmount" xlink:label="loc_duk_ApprovedRateIncreaseDecreaseOneTimeWaiverAmount_D9F43B2C5F7272CC21E23C50E90ECBFB" xlink:type="locator"/>
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<link:label id="lab_duk_EstimatedCapitalCostExcludingAFUDC_24E41CC6C91DF081CB933C50E90EFB6D_terseLabel_en-US" xlink:label="lab_duk_EstimatedCapitalCostExcludingAFUDC_24E41CC6C91DF081CB933C50E90EFB6D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated capital cost excluding AFUDC </link:label>
<link:label id="lab_duk_EstimatedCapitalCostExcludingAFUDC_24E41CC6C91DF081CB933C50E90EFB6D_label_en-US" xlink:label="lab_duk_EstimatedCapitalCostExcludingAFUDC_24E41CC6C91DF081CB933C50E90EFB6D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Estimated Capital Cost Excluding AFUDC </link:label>
<link:label id="lab_duk_EstimatedCapitalCostExcludingAFUDC_24E41CC6C91DF081CB933C50E90EFB6D_documentation_en-US" xlink:label="lab_duk_EstimatedCapitalCostExcludingAFUDC_24E41CC6C91DF081CB933C50E90EFB6D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Estimated Capital Cost Excluding AFUDC </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_EstimatedCapitalCostExcludingAFUDC" xlink:label="loc_duk_EstimatedCapitalCostExcludingAFUDC_24E41CC6C91DF081CB933C50E90EFB6D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_EstimatedCapitalCostExcludingAFUDC_24E41CC6C91DF081CB933C50E90EFB6D" xlink:to="lab_duk_EstimatedCapitalCostExcludingAFUDC_24E41CC6C91DF081CB933C50E90EFB6D" xlink:type="arc"/>
<link:label id="lab_duk_ApprovedReturnonEquityPercentageAdder_A021554F83F4F091AB4C3C50E90EA8DB_terseLabel_en-US" xlink:label="lab_duk_ApprovedReturnonEquityPercentageAdder_A021554F83F4F091AB4C3C50E90EA8DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Approved return on equity percentage adder </link:label>
<link:label id="lab_duk_ApprovedReturnonEquityPercentageAdder_A021554F83F4F091AB4C3C50E90EA8DB_label_en-US" xlink:label="lab_duk_ApprovedReturnonEquityPercentageAdder_A021554F83F4F091AB4C3C50E90EA8DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Approved Return on Equity Percentage Adder </link:label>
<link:label id="lab_duk_ApprovedReturnonEquityPercentageAdder_A021554F83F4F091AB4C3C50E90EA8DB_documentation_en-US" xlink:label="lab_duk_ApprovedReturnonEquityPercentageAdder_A021554F83F4F091AB4C3C50E90EA8DB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Approved Return on Equity Percentage Adder </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_ApprovedReturnonEquityPercentageAdder" xlink:label="loc_duk_ApprovedReturnonEquityPercentageAdder_A021554F83F4F091AB4C3C50E90EA8DB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_ApprovedReturnonEquityPercentageAdder_A021554F83F4F091AB4C3C50E90EA8DB" xlink:to="lab_duk_ApprovedReturnonEquityPercentageAdder_A021554F83F4F091AB4C3C50E90EA8DB" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongtermPurchaseCommitmentPeriod_102374149A6DE4C2F66F3C50E90EB90D_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermPurchaseCommitmentPeriod_102374149A6DE4C2F66F3C50E90EB90D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term purchase commitment, period </link:label>
<link:label id="lab_us-gaap_LongtermPurchaseCommitmentPeriod_102374149A6DE4C2F66F3C50E90EB90D_label_en-US" xlink:label="lab_us-gaap_LongtermPurchaseCommitmentPeriod_102374149A6DE4C2F66F3C50E90EB90D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Purchase Commitment, Period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermPurchaseCommitmentPeriod" xlink:label="loc_us-gaap_LongtermPurchaseCommitmentPeriod_102374149A6DE4C2F66F3C50E90EB90D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermPurchaseCommitmentPeriod_102374149A6DE4C2F66F3C50E90EB90D" xlink:to="lab_us-gaap_LongtermPurchaseCommitmentPeriod_102374149A6DE4C2F66F3C50E90EB90D" xlink:type="arc"/>
<link:label id="lab_duk_EstimatedContributions_6378DEB41A88E15FB1303C50E90E7B72_terseLabel_en-US" xlink:label="lab_duk_EstimatedContributions_6378DEB41A88E15FB1303C50E90E7B72" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated contributions </link:label>
<link:label id="lab_duk_EstimatedContributions_6378DEB41A88E15FB1303C50E90E7B72_label_en-US" xlink:label="lab_duk_EstimatedContributions_6378DEB41A88E15FB1303C50E90E7B72" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Estimated Contributions </link:label>
<link:label id="lab_duk_EstimatedContributions_6378DEB41A88E15FB1303C50E90E7B72_documentation_en-US" xlink:label="lab_duk_EstimatedContributions_6378DEB41A88E15FB1303C50E90E7B72" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The estimated cash outflow associated with contributions to an equity method investment (EMI) to fund the EMI's development and construction of a new natural gas pipeline. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_EstimatedContributions" xlink:label="loc_duk_EstimatedContributions_6378DEB41A88E15FB1303C50E90E7B72" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_EstimatedContributions_6378DEB41A88E15FB1303C50E90E7B72" xlink:to="lab_duk_EstimatedContributions_6378DEB41A88E15FB1303C50E90E7B72" xlink:type="arc"/>
<link:label id="lab_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_845C33C1808162E802B73C50E90E3D79_terseLabel_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_845C33C1808162E802B73C50E90E3D79" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity method investment, OTTI </link:label>
<link:label id="lab_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_845C33C1808162E802B73C50E90E3D79_label_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_845C33C1808162E802B73C50E90E3D79" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Method Investment, Other than Temporary Impairment </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment" xlink:label="loc_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_845C33C1808162E802B73C50E90E3D79" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_845C33C1808162E802B73C50E90E3D79" xlink:to="lab_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_845C33C1808162E802B73C50E90E3D79" xlink:type="arc"/>
<link:label id="lab_us-gaap_TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxLiabilityIncomeTaxBenefit_1A3FB23E03DC58C6EA323C50E90FA5AF_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxLiabilityIncomeTaxBenefit_1A3FB23E03DC58C6EA323C50E90FA5AF" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Change in tax rate, deferred tax liability, income tax benefit </link:label>
<link:label id="lab_us-gaap_TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxLiabilityIncomeTaxBenefit_1A3FB23E03DC58C6EA323C50E90FA5AF_label_en-US" xlink:label="lab_us-gaap_TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxLiabilityIncomeTaxBenefit_1A3FB23E03DC58C6EA323C50E90FA5AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tax Cuts and Jobs Act, Change in Tax Rate, Deferred Tax Liability, Income Tax Benefit </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxLiabilityIncomeTaxBenefit" xlink:label="loc_us-gaap_TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxLiabilityIncomeTaxBenefit_1A3FB23E03DC58C6EA323C50E90FA5AF" xlink:type="locator"/>
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<link:label id="lab_duk_TaxCutsandJobsActMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit_7E2126ED4E62DBFA8E1D3C50E90F8FCF_negatedLabel_en-US" xlink:label="lab_duk_TaxCutsandJobsActMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit_7E2126ED4E62DBFA8E1D3C50E90F8FCF" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Measurement period adjustment, income tax expense (benefit) </link:label>
<link:label id="lab_duk_TaxCutsandJobsActMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit_7E2126ED4E62DBFA8E1D3C50E90F8FCF_label_en-US" xlink:label="lab_duk_TaxCutsandJobsActMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit_7E2126ED4E62DBFA8E1D3C50E90F8FCF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tax Cuts and Jobs Act, Measurement Period Adjustment, Income Tax Expense (Benefit) </link:label>
<link:label id="lab_duk_TaxCutsandJobsActMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit_7E2126ED4E62DBFA8E1D3C50E90F8FCF_documentation_en-US" xlink:label="lab_duk_TaxCutsandJobsActMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit_7E2126ED4E62DBFA8E1D3C50E90F8FCF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tax Cuts and Jobs Act, Measurement Period Adjustment, Income Tax Expense (Benefit) </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_TaxCutsandJobsActMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit" xlink:label="loc_duk_TaxCutsandJobsActMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit_7E2126ED4E62DBFA8E1D3C50E90F8FCF" xlink:type="locator"/>
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<link:label id="lab_duk_EffectiveIncomeTaxRateReconciliationStateandLocalTaxesIncreaseReductionAmount_B90443F133B47A59F91A3C50E90F7927_terseLabel_en-US" xlink:label="lab_duk_EffectiveIncomeTaxRateReconciliationStateandLocalTaxesIncreaseReductionAmount_B90443F133B47A59F91A3C50E90F7927" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> State and local taxes, increase (reduction), amount </link:label>
<link:label id="lab_duk_EffectiveIncomeTaxRateReconciliationStateandLocalTaxesIncreaseReductionAmount_B90443F133B47A59F91A3C50E90F7927_label_en-US" xlink:label="lab_duk_EffectiveIncomeTaxRateReconciliationStateandLocalTaxesIncreaseReductionAmount_B90443F133B47A59F91A3C50E90F7927" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, State and Local Taxes, Increase (Reduction), Amount </link:label>
<link:label id="lab_duk_EffectiveIncomeTaxRateReconciliationStateandLocalTaxesIncreaseReductionAmount_B90443F133B47A59F91A3C50E90F7927_documentation_en-US" xlink:label="lab_duk_EffectiveIncomeTaxRateReconciliationStateandLocalTaxesIncreaseReductionAmount_B90443F133B47A59F91A3C50E90F7927" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, State and Local Taxes, Increase (Reduction), Amount </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_EffectiveIncomeTaxRateReconciliationStateandLocalTaxesIncreaseReductionAmount" xlink:label="loc_duk_EffectiveIncomeTaxRateReconciliationStateandLocalTaxesIncreaseReductionAmount_B90443F133B47A59F91A3C50E90F7927" xlink:type="locator"/>
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<link:label id="lab_duk_EstimatedCapitalCostIncludingAfudc_59544571592A9E142D353C50E9148D1F_terseLabel_en-US" xlink:label="lab_duk_EstimatedCapitalCostIncludingAfudc_59544571592A9E142D353C50E9148D1F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated capital costs </link:label>
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<link:label id="lab_us-gaap_JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService_B394528ED4C2235E63663C50E9152A3D_terseLabel_en-US" xlink:label="lab_us-gaap_JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService_B394528ED4C2235E63663C50E9152A3D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Investment amount </link:label>
<link:label id="lab_us-gaap_JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService_B394528ED4C2235E63663C50E9152A3D_label_en-US" xlink:label="lab_us-gaap_JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService_B394528ED4C2235E63663C50E9152A3D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Jointly Owned Utility Plant, Gross Ownership Amount of Plant in Service </link:label>
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<link:label id="lab_duk_JointlyOwnedUtilityPlanGuaranteeMaximumExposurePercentageOfOutstandingBorrowings_DA72831AD9D9AF8B42673C50E9157C3A_terseLabel_en-US" xlink:label="lab_duk_JointlyOwnedUtilityPlanGuaranteeMaximumExposurePercentageOfOutstandingBorrowings_DA72831AD9D9AF8B42673C50E9157C3A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Percentage of outstanding borrowings </link:label>
<link:label id="lab_duk_JointlyOwnedUtilityPlanGuaranteeMaximumExposurePercentageOfOutstandingBorrowings_DA72831AD9D9AF8B42673C50E9157C3A_label_en-US" xlink:label="lab_duk_JointlyOwnedUtilityPlanGuaranteeMaximumExposurePercentageOfOutstandingBorrowings_DA72831AD9D9AF8B42673C50E9157C3A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Jointly Owned Utility Plan, Guarantee, Maximum Exposure, Percentage Of Outstanding Borrowings </link:label>
<link:label id="lab_duk_JointlyOwnedUtilityPlanGuaranteeMaximumExposurePercentageOfOutstandingBorrowings_DA72831AD9D9AF8B42673C50E9157C3A_documentation_en-US" xlink:label="lab_duk_JointlyOwnedUtilityPlanGuaranteeMaximumExposurePercentageOfOutstandingBorrowings_DA72831AD9D9AF8B42673C50E9157C3A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Jointly Owned Utility Plan, Guarantee, Maximum Exposure, Percentage Of Outstanding Borrowings </link:label>
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<link:label id="lab_duk_PublicUtilitiesAgreementReturnOnEquityPercentage_3C6BC2E68060B1E0DB193C50E915B7AD_label_en-US" xlink:label="lab_duk_PublicUtilitiesAgreementReturnOnEquityPercentage_3C6BC2E68060B1E0DB193C50E915B7AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Agreement Return On Equity, Percentage </link:label>
<link:label id="lab_duk_PublicUtilitiesAgreementReturnOnEquityPercentage_3C6BC2E68060B1E0DB193C50E915B7AD_documentation_en-US" xlink:label="lab_duk_PublicUtilitiesAgreementReturnOnEquityPercentage_3C6BC2E68060B1E0DB193C50E915B7AD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Public Utilities, Agreement Return On Equity, Percentage </link:label>
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<link:label id="lab_us-gaap_SegmentReportingAbstract_809AD16D382F5E8DF4BBDF9DDB54E785_label_en-US" xlink:label="lab_us-gaap_SegmentReportingAbstract_809AD16D382F5E8DF4BBDF9DDB54E785" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segment Reporting [Abstract] </link:label>
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<link:label id="lab_us-gaap_CorporateNonSegmentMember_D10603564280B44E19E1DF9DDB57C024_label_en-US" xlink:label="lab_us-gaap_CorporateNonSegmentMember_D10603564280B44E19E1DF9DDB57C024" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Corporate, Non-Segment [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_D10603564280B44E19E1DF9DDB57C024" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CorporateNonSegmentMember_D10603564280B44E19E1DF9DDB57C024" xlink:to="lab_us-gaap_CorporateNonSegmentMember_D10603564280B44E19E1DF9DDB57C024" xlink:type="arc"/>
<link:label id="lab_duk_TotalReportableSegmentsMember_362A85BAA6A53EB04559DF9DDB58D11C_terseLabel_en-US" xlink:label="lab_duk_TotalReportableSegmentsMember_362A85BAA6A53EB04559DF9DDB58D11C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total Reportable Segments [Member] </link:label>
<link:label id="lab_duk_TotalReportableSegmentsMember_362A85BAA6A53EB04559DF9DDB58D11C_label_en-US" xlink:label="lab_duk_TotalReportableSegmentsMember_362A85BAA6A53EB04559DF9DDB58D11C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Total Reportable Segments [Member] </link:label>
<link:label id="lab_duk_TotalReportableSegmentsMember_362A85BAA6A53EB04559DF9DDB58D11C_documentation_en-US" xlink:label="lab_duk_TotalReportableSegmentsMember_362A85BAA6A53EB04559DF9DDB58D11C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Total Reportable Segments </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_TotalReportableSegmentsMember" xlink:label="loc_duk_TotalReportableSegmentsMember_362A85BAA6A53EB04559DF9DDB58D11C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_TotalReportableSegmentsMember_362A85BAA6A53EB04559DF9DDB58D11C" xlink:to="lab_duk_TotalReportableSegmentsMember_362A85BAA6A53EB04559DF9DDB58D11C" xlink:type="arc"/>
<link:label id="lab_us-gaap_AllOtherSegmentsMember_B2C20BFED7127963B811DF9DDB58F6D7_terseLabel_en-US" xlink:label="lab_us-gaap_AllOtherSegmentsMember_B2C20BFED7127963B811DF9DDB58F6D7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other [Member] </link:label>
<link:label id="lab_us-gaap_AllOtherSegmentsMember_B2C20BFED7127963B811DF9DDB58F6D7_label_en-US" xlink:label="lab_us-gaap_AllOtherSegmentsMember_B2C20BFED7127963B811DF9DDB58F6D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Segments [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllOtherSegmentsMember" xlink:label="loc_us-gaap_AllOtherSegmentsMember_B2C20BFED7127963B811DF9DDB58F6D7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllOtherSegmentsMember_B2C20BFED7127963B811DF9DDB58F6D7" xlink:to="lab_us-gaap_AllOtherSegmentsMember_B2C20BFED7127963B811DF9DDB58F6D7" xlink:type="arc"/>
<link:label id="lab_us-gaap_SegmentReportingInformationLineItems_A20581138ED06DE73C10DF9DDB58C00A_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems_A20581138ED06DE73C10DF9DDB58C00A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Segment Reporting Information [Line Items] </link:label>
<link:label id="lab_us-gaap_SegmentReportingInformationLineItems_A20581138ED06DE73C10DF9DDB58C00A_label_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems_A20581138ED06DE73C10DF9DDB58C00A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segment Reporting Information [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_A20581138ED06DE73C10DF9DDB58C00A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_A20581138ED06DE73C10DF9DDB58C00A" xlink:to="lab_us-gaap_SegmentReportingInformationLineItems_A20581138ED06DE73C10DF9DDB58C00A" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_63068D9ED01FFEDD22B8DF9DDB58ABF0_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_63068D9ED01FFEDD22B8DF9DDB58ABF0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income (Loss) From Discontinued Operations, net of tax </link:label>
<link:label id="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_63068D9ED01FFEDD22B8DF9DDB58ABF0_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_63068D9ED01FFEDD22B8DF9DDB58ABF0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_63068D9ED01FFEDD22B8DF9DDB58ABF0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_63068D9ED01FFEDD22B8DF9DDB58ABF0" xlink:to="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_63068D9ED01FFEDD22B8DF9DDB58ABF0" xlink:type="arc"/>
<link:label id="lab_us-gaap_RegulatedAndUnregulatedOperatingRevenue_4605B395FD3ACDF35ABEDF9DDB592C59_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatedAndUnregulatedOperatingRevenue_4605B395FD3ACDF35ABEDF9DDB592C59" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating revenues </link:label>
<link:label id="lab_us-gaap_RegulatedAndUnregulatedOperatingRevenue_4605B395FD3ACDF35ABEDF9DDB592C59_label_en-US" xlink:label="lab_us-gaap_RegulatedAndUnregulatedOperatingRevenue_4605B395FD3ACDF35ABEDF9DDB592C59" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Regulated and Unregulated Operating Revenue </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatedAndUnregulatedOperatingRevenue" xlink:label="loc_us-gaap_RegulatedAndUnregulatedOperatingRevenue_4605B395FD3ACDF35ABEDF9DDB592C59" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncomeLossFromContinuingOperations_74BDEE260BADE960370DDF9DDB59C21E_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperations_74BDEE260BADE960370DDF9DDB59C21E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Segment income (loss) </link:label>
<link:label id="lab_us-gaap_IncomeLossFromContinuingOperations_74BDEE260BADE960370DDF9DDB59C21E_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperations_74BDEE260BADE960370DDF9DDB59C21E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_74BDEE260BADE960370DDF9DDB59C21E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_74BDEE260BADE960370DDF9DDB59C21E" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperations_74BDEE260BADE960370DDF9DDB59C21E" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_096D55F30D04554CCB2ADF9DDB591CDB_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_096D55F30D04554CCB2ADF9DDB591CDB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Add back noncontrolling interests(b) </link:label>
<link:label id="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_096D55F30D04554CCB2ADF9DDB591CDB_label_en-US" xlink:label="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_096D55F30D04554CCB2ADF9DDB591CDB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss) Attributable to Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_096D55F30D04554CCB2ADF9DDB591CDB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_096D55F30D04554CCB2ADF9DDB591CDB" xlink:to="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_096D55F30D04554CCB2ADF9DDB591CDB" xlink:type="arc"/>
<link:label id="lab_us-gaap_PreferredStockDividendsIncomeStatementImpact_D139E3D94BAB48AAE481DF9DDB59610F_verboseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockDividendsIncomeStatementImpact_D139E3D94BAB48AAE481DF9DDB59610F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Add back preferred stock dividend </link:label>
<link:label id="lab_us-gaap_PreferredStockDividendsIncomeStatementImpact_D139E3D94BAB48AAE481DF9DDB59610F_label_en-US" xlink:label="lab_us-gaap_PreferredStockDividendsIncomeStatementImpact_D139E3D94BAB48AAE481DF9DDB59610F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock Dividends, Income Statement Impact </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact" xlink:label="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_D139E3D94BAB48AAE481DF9DDB59610F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProfitLoss_1F743105CA7E20B49730DF9DDB596673_totalLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss_1F743105CA7E20B49730DF9DDB596673" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net Income </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_1F743105CA7E20B49730DF9DDB596673" xlink:type="locator"/>
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<link:label id="lab_us-gaap_Assets_AB4F122ED9D9C046D8E5DF9DDB5A04DA_verboseLabel_en-US" xlink:label="lab_us-gaap_Assets_AB4F122ED9D9C046D8E5DF9DDB5A04DA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Segment assets </link:label>
<link:label id="lab_us-gaap_Assets_AB4F122ED9D9C046D8E5DF9DDB5A04DA_label_en-US" xlink:label="lab_us-gaap_Assets_AB4F122ED9D9C046D8E5DF9DDB5A04DA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_AB4F122ED9D9C046D8E5DF9DDB5A04DA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets_AB4F122ED9D9C046D8E5DF9DDB5A04DA" xlink:to="lab_us-gaap_Assets_AB4F122ED9D9C046D8E5DF9DDB5A04DA" xlink:type="arc"/>
<link:label id="lab_us-gaap_EquityAbstract_0795BA5D3A966FAEF1483C6AAC7699B4_label_en-US" xlink:label="lab_us-gaap_EquityAbstract_0795BA5D3A966FAEF1483C6AAC7699B4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_0795BA5D3A966FAEF1483C6AAC7699B4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityAbstract_0795BA5D3A966FAEF1483C6AAC7699B4" xlink:to="lab_us-gaap_EquityAbstract_0795BA5D3A966FAEF1483C6AAC7699B4" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfStockByClassTable_EFDE28B1628278634EB63C6AAC76E986_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfStockByClassTable_EFDE28B1628278634EB63C6AAC76E986" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Stock by Class [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfStockByClassTable_EFDE28B1628278634EB63C6AAC76E986_label_en-US" xlink:label="lab_us-gaap_ScheduleOfStockByClassTable_EFDE28B1628278634EB63C6AAC76E986" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Stock by Class [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_EFDE28B1628278634EB63C6AAC76E986" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ClassOfStockLineItems_A0FBE7297CA67A4FB1763C6AAC7AC7B5_terseLabel_en-US" xlink:label="lab_us-gaap_ClassOfStockLineItems_A0FBE7297CA67A4FB1763C6AAC7AC7B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Class of Stock [Line Items] </link:label>
<link:label id="lab_us-gaap_ClassOfStockLineItems_A0FBE7297CA67A4FB1763C6AAC7AC7B5_label_en-US" xlink:label="lab_us-gaap_ClassOfStockLineItems_A0FBE7297CA67A4FB1763C6AAC7AC7B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Class of Stock [Line Items] </link:label>
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<link:label id="lab_duk_IncomeLossfromContinuingOperationsNetofTaxExcludingParticipatingSecurities_082B106158C533D0823A3C6AAC7A4CED_terseLabel_en-US" xlink:label="lab_duk_IncomeLossfromContinuingOperationsNetofTaxExcludingParticipatingSecurities_082B106158C533D0823A3C6AAC7A4CED" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income from continuing operations attributable to Duke Energy common stockholders excluding impact of participating securities </link:label>
<link:label id="lab_duk_IncomeLossfromContinuingOperationsNetofTaxExcludingParticipatingSecurities_082B106158C533D0823A3C6AAC7A4CED_label_en-US" xlink:label="lab_duk_IncomeLossfromContinuingOperationsNetofTaxExcludingParticipatingSecurities_082B106158C533D0823A3C6AAC7A4CED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Continuing Operations, Net of Tax, Excluding Participating Securities </link:label>
<link:label id="lab_duk_IncomeLossfromContinuingOperationsNetofTaxExcludingParticipatingSecurities_082B106158C533D0823A3C6AAC7A4CED_documentation_en-US" xlink:label="lab_duk_IncomeLossfromContinuingOperationsNetofTaxExcludingParticipatingSecurities_082B106158C533D0823A3C6AAC7A4CED" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount after tax of income (loss) from continuing operations attributable to parent, excluding the impact of participating securities. </link:label>
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<link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_B22C05AA956CE7379EBE3C6AAC7AF247_verboseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_B22C05AA956CE7379EBE3C6AAC7AF247" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Weighted average common shares outstanding – basic (in shares) </link:label>
<link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_B22C05AA956CE7379EBE3C6AAC7AF247_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_B22C05AA956CE7379EBE3C6AAC7AF247" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weighted Average Number of Shares Outstanding, Basic </link:label>
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<link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_C85C62385354BEDF47A23C6AAC7A3EC4_terseLabel_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_C85C62385354BEDF47A23C6AAC7A3EC4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity Forwards (in shares) </link:label>
<link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_C85C62385354BEDF47A23C6AAC7A3EC4_label_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_C85C62385354BEDF47A23C6AAC7A3EC4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_C85C62385354BEDF47A23C6AAC7A3EC4" xlink:type="locator"/>
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<link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_05187B92D2897F1167923C6AAC7AE364_totalLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_05187B92D2897F1167923C6AAC7AE364" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Weighted average common shares outstanding – diluted (in shares) </link:label>
<link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_05187B92D2897F1167923C6AAC7AE364_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_05187B92D2897F1167923C6AAC7AE364" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weighted Average Number of Shares Outstanding, Diluted </link:label>
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<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_FDFADBBAA6FF384B7D0A3C6AAC7AC9DC_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_FDFADBBAA6FF384B7D0A3C6AAC7AC9DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Basic (in usd per share) </link:label>
<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_FDFADBBAA6FF384B7D0A3C6AAC7AC9DC_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_FDFADBBAA6FF384B7D0A3C6AAC7AC9DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Continuing Operations, Per Basic Share </link:label>
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<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_7230297FF88BB64ECCD23C6AAC7A42C4_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_7230297FF88BB64ECCD23C6AAC7A42C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Diluted (in usd per share) </link:label>
<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_7230297FF88BB64ECCD23C6AAC7A42C4_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_7230297FF88BB64ECCD23C6AAC7A42C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Continuing Operations, Per Diluted Share </link:label>
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<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_2FF596291E831D51CB623C6AAC7A7CC4_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_2FF596291E831D51CB623C6AAC7A7CC4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Potentially dilutive items excluded from the calculation (in shares) </link:label>
<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_2FF596291E831D51CB623C6AAC7A7CC4_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_2FF596291E831D51CB623C6AAC7A7CC4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_2FF596291E831D51CB623C6AAC7A7CC4" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_9AA724FE39579F76BFA73C6AAC7A6B51_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared_9AA724FE39579F76BFA73C6AAC7A6B51" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Dividends declared per common share (in usd per share) </link:label>
<link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_9AA724FE39579F76BFA73C6AAC7A6B51_label_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared_9AA724FE39579F76BFA73C6AAC7A6B51" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Dividends, Per Share, Declared </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_9AA724FE39579F76BFA73C6AAC7A6B51" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PreferredStockDividendsPerShareDeclared_BFF2447826193B74FB453C6AAC7A5EEE_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockDividendsPerShareDeclared_BFF2447826193B74FB453C6AAC7A5EEE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Dividends declared on preferred stock per depositary share (in usd per share) </link:label>
<link:label id="lab_us-gaap_PreferredStockDividendsPerShareDeclared_BFF2447826193B74FB453C6AAC7A5EEE_label_en-US" xlink:label="lab_us-gaap_PreferredStockDividendsPerShareDeclared_BFF2447826193B74FB453C6AAC7A5EEE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Dividends Per Share, Declared </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_PreferredStockDividendsPerShareDeclared_BFF2447826193B74FB453C6AAC7A5EEE" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LeasesAbstract_019928DA4B13D8F5D3223C6AAFCE726E_label_en-US" xlink:label="lab_us-gaap_LeasesAbstract_019928DA4B13D8F5D3223C6AAFCE726E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Leases [Abstract] </link:label>
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<link:label id="lab_us-gaap_LesseeLeaseDescriptionTable_4F6B4BB8E1181DD60C1D3C6AAFCE8965_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionTable_4F6B4BB8E1181DD60C1D3C6AAFCE8965" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Table] </link:label>
<link:label id="lab_us-gaap_LesseeLeaseDescriptionTable_4F6B4BB8E1181DD60C1D3C6AAFCE8965_label_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionTable_4F6B4BB8E1181DD60C1D3C6AAFCE8965" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Table] </link:label>
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<link:label id="lab_duk_RenewableEnergyProjectsMember_D2B66E0942248378FE3C3C6AAFCEFBCB_terseLabel_en-US" xlink:label="lab_duk_RenewableEnergyProjectsMember_D2B66E0942248378FE3C3C6AAFCEFBCB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Renewable Energy Projects [Member] </link:label>
<link:label id="lab_duk_RenewableEnergyProjectsMember_D2B66E0942248378FE3C3C6AAFCEFBCB_label_en-US" xlink:label="lab_duk_RenewableEnergyProjectsMember_D2B66E0942248378FE3C3C6AAFCEFBCB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Renewable Energy Projects [Member] </link:label>
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<link:label id="lab_us-gaap_LesseeLeaseDescriptionLineItems_7DD4D40F9D5BFD0272E93C6AAFCEC8B5_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionLineItems_7DD4D40F9D5BFD0272E93C6AAFCEC8B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Line Items] </link:label>
<link:label id="lab_us-gaap_LesseeLeaseDescriptionLineItems_7DD4D40F9D5BFD0272E93C6AAFCEC8B5_label_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionLineItems_7DD4D40F9D5BFD0272E93C6AAFCEC8B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Line Items] </link:label>
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<link:label id="lab_duk_LesseeLeasesContingentLeasePayments_8800535025D2402600C13C6AAFCE12EE_terseLabel_en-US" xlink:label="lab_duk_LesseeLeasesContingentLeasePayments_8800535025D2402600C13C6AAFCE12EE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contingent lease payments </link:label>
<link:label id="lab_duk_LesseeLeasesContingentLeasePayments_8800535025D2402600C13C6AAFCE12EE_label_en-US" xlink:label="lab_duk_LesseeLeasesContingentLeasePayments_8800535025D2402600C13C6AAFCE12EE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Leases, Contingent Lease Payments </link:label>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_7B6A543BDA2C9C7C36F43C6AAFCE2079_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_7B6A543BDA2C9C7C36F43C6AAFCE2079" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease assets, cost basis </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_7B6A543BDA2C9C7C36F43C6AAFCE2079_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_7B6A543BDA2C9C7C36F43C6AAFCE2079" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Gross </link:label>
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<link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_2D3454EFD409C69450443C6AAFCE1C71_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_2D3454EFD409C69450443C6AAFCE1C71" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease assets, accumulated depreciation </link:label>
<link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_2D3454EFD409C69450443C6AAFCE1C71_label_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_2D3454EFD409C69450443C6AAFCE1C71" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment </link:label>
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<link:label id="lab_us-gaap_DesignatedAsHedgingInstrumentMember_A7AEE27E3396A662EF030347674324F6_terseLabel_en-US" xlink:label="lab_us-gaap_DesignatedAsHedgingInstrumentMember_A7AEE27E3396A662EF030347674324F6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Designated as Hedging Instrument [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DesignatedAsHedgingInstrumentMember" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_A7AEE27E3396A662EF030347674324F6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PriceRiskDerivativeMember_A68C15AA5305947DDC7103476744B502_terseLabel_en-US" xlink:label="lab_us-gaap_PriceRiskDerivativeMember_A68C15AA5305947DDC7103476744B502" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Commodity Contracts [Member] </link:label>
<link:label id="lab_us-gaap_PriceRiskDerivativeMember_A68C15AA5305947DDC7103476744B502_label_en-US" xlink:label="lab_us-gaap_PriceRiskDerivativeMember_A68C15AA5305947DDC7103476744B502" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Price Risk Derivative [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PriceRiskDerivativeMember" xlink:label="loc_us-gaap_PriceRiskDerivativeMember_A68C15AA5305947DDC7103476744B502" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ElectricTransmissionMember_85191E900C43E865B66E034767455489_terseLabel_en-US" xlink:label="lab_us-gaap_ElectricTransmissionMember_85191E900C43E865B66E034767455489" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Electricity [Member] </link:label>
<link:label id="lab_us-gaap_ElectricTransmissionMember_85191E900C43E865B66E034767455489_label_en-US" xlink:label="lab_us-gaap_ElectricTransmissionMember_85191E900C43E865B66E034767455489" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Electric Transmission [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ElectricTransmissionMember" xlink:label="loc_us-gaap_ElectricTransmissionMember_85191E900C43E865B66E034767455489" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ElectricTransmissionMember_85191E900C43E865B66E034767455489" xlink:to="lab_us-gaap_ElectricTransmissionMember_85191E900C43E865B66E034767455489" xlink:type="arc"/>
<link:label id="lab_us-gaap_GasDistributionMember_671568156A57DA8DF220034767454F2F_terseLabel_en-US" xlink:label="lab_us-gaap_GasDistributionMember_671568156A57DA8DF220034767454F2F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Natural Gas [Member] </link:label>
<link:label id="lab_us-gaap_GasDistributionMember_671568156A57DA8DF220034767454F2F_label_en-US" xlink:label="lab_us-gaap_GasDistributionMember_671568156A57DA8DF220034767454F2F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Gas Distribution [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GasDistributionMember" xlink:label="loc_us-gaap_GasDistributionMember_671568156A57DA8DF220034767454F2F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GasDistributionMember_671568156A57DA8DF220034767454F2F" xlink:to="lab_us-gaap_GasDistributionMember_671568156A57DA8DF220034767454F2F" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativeNotionalAmount_AF5DD9A4879A2E41CDE403476746D09F_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeNotionalAmount_AF5DD9A4879A2E41CDE403476746D09F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notional amount </link:label>
<link:label id="lab_us-gaap_DerivativeNotionalAmount_AF5DD9A4879A2E41CDE403476746D09F_label_en-US" xlink:label="lab_us-gaap_DerivativeNotionalAmount_AF5DD9A4879A2E41CDE403476746D09F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative, Notional Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNotionalAmount" xlink:label="loc_us-gaap_DerivativeNotionalAmount_AF5DD9A4879A2E41CDE403476746D09F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeNotionalAmount_AF5DD9A4879A2E41CDE403476746D09F" xlink:to="lab_us-gaap_DerivativeNotionalAmount_AF5DD9A4879A2E41CDE403476746D09F" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure_06AB2A184315AF788B2403476746C914_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure_06AB2A184315AF788B2403476746C914" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notional amount, energy measure (in gigawatt-hours) </link:label>
<link:label id="lab_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure_06AB2A184315AF788B2403476746C914_label_en-US" xlink:label="lab_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure_06AB2A184315AF788B2403476746C914" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative, Nonmonetary Notional Amount, Energy Measure </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure" xlink:label="loc_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure_06AB2A184315AF788B2403476746C914" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DerivativeNonmonetaryNotionalAmountVolume_82BDFC3819B416834CB503476746C915_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeNonmonetaryNotionalAmountVolume_82BDFC3819B416834CB503476746C915" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notional amount, volume (in millions of decatherms) </link:label>
<link:label id="lab_us-gaap_DerivativeNonmonetaryNotionalAmountVolume_82BDFC3819B416834CB503476746C915_label_en-US" xlink:label="lab_us-gaap_DerivativeNonmonetaryNotionalAmountVolume_82BDFC3819B416834CB503476746C915" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative, Nonmonetary Notional Amount, Volume </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNonmonetaryNotionalAmountVolume" xlink:label="loc_us-gaap_DerivativeNonmonetaryNotionalAmountVolume_82BDFC3819B416834CB503476746C915" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_DEF2707B9DBE7DB3A80EB88F9674B6E6_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_F77813531D35589C80DBE5DF650248A6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Organization, Consolidation and Presentation of Financial Statements [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_F77813531D35589C80DBE5DF650248A6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfCashAndCashEquivalentsTable_93EB349F77C3C062FCA2B88F9674F7D0_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfCashAndCashEquivalentsTable_AACA1CDF885C51E190FEA45683BA00A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Cash and Cash Equivalents [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfCashAndCashEquivalentsTable_93EB349F77C3C062FCA2B88F9674F7D0_label_en-US" xlink:label="lab_us-gaap_ScheduleOfCashAndCashEquivalentsTable_AACA1CDF885C51E190FEA45683BA00A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Cash and Cash Equivalents [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfCashAndCashEquivalentsTable" xlink:label="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_AACA1CDF885C51E190FEA45683BA00A9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashAndCashEquivalentsLineItems_79761E93CA8C53827D9DB88F9676DA03_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsLineItems_CB2064AC56465974B36F0F022C2BCA51" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents [Line Items] </link:label>
<link:label id="lab_us-gaap_CashAndCashEquivalentsLineItems_79761E93CA8C53827D9DB88F9676DA03_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsLineItems_CB2064AC56465974B36F0F022C2BCA51" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsLineItems" xlink:label="loc_us-gaap_CashAndCashEquivalentsLineItems_CB2064AC56465974B36F0F022C2BCA51" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AssetsCurrentAbstract_FF4A23F2B92B3B87E9FFB88F9676FB30_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_4351A8E313345A7299226CE112AFE26A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current Assets </link:label>
<link:label id="lab_us-gaap_AssetsCurrentAbstract_FF4A23F2B92B3B87E9FFB88F9676FB30_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_4351A8E313345A7299226CE112AFE26A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Current [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_4351A8E313345A7299226CE112AFE26A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_8852BF105F4F05FA8E4AB88F9676DD00_verboseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_D9A1A2E06CA754AFB7CA35246F5E0C12" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents </link:label>
<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_8852BF105F4F05FA8E4AB88F9676DD00_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_D9A1A2E06CA754AFB7CA35246F5E0C12" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, at Carrying Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_D9A1A2E06CA754AFB7CA35246F5E0C12" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_B57F148CD073DA7ABF19B88F96770068_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_074C2689D8F65D2F85AEEF9D9DA262AF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_B57F148CD073DA7ABF19B88F96770068_label_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_074C2689D8F65D2F85AEEF9D9DA262AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restricted Cash and Cash Equivalents, Current </link:label>
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<link:label id="lab_us-gaap_OtherAssetsNoncurrentAbstract_AC6AA14128D743BC9CAFB88F96778F40_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrentAbstract_ECAFDA8C15B9560DBB93888F68B1C8D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Noncurrent Assets </link:label>
<link:label id="lab_us-gaap_OtherAssetsNoncurrentAbstract_AC6AA14128D743BC9CAFB88F96778F40_label_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrentAbstract_ECAFDA8C15B9560DBB93888F68B1C8D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Assets, Noncurrent [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsNoncurrentAbstract" xlink:label="loc_us-gaap_OtherAssetsNoncurrentAbstract_ECAFDA8C15B9560DBB93888F68B1C8D1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_CB39F852641289483BB3B88F96773EB3_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_D4188D7DA9AB5694855916095348A361" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_CB39F852641289483BB3B88F96773EB3_label_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_D4188D7DA9AB5694855916095348A361" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restricted Cash and Cash Equivalents, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_D4188D7DA9AB5694855916095348A361" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_DE7B4F873336B616E353B88F9677F5F9_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1FE4ED91D0875D72B998CBF79597B875" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total cash, cash equivalents and restricted cash </link:label>
<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_DE7B4F873336B616E353B88F9677F5F9_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1FE4ED91D0875D72B998CBF79597B875" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1FE4ED91D0875D72B998CBF79597B875" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1FE4ED91D0875D72B998CBF79597B875" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1FE4ED91D0875D72B998CBF79597B875" xlink:type="arc"/>
<link:label id="lab_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_5DFAF6328096F876BAD0B88F96C70E90_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_869BD2E3BE595DEA9BD95EFA22406BFA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity, Not Primary Beneficiary [Member] </link:label>
<link:label id="lab_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_5DFAF6328096F876BAD0B88F96C70E90_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_869BD2E3BE595DEA9BD95EFA22406BFA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity, Not Primary Beneficiary [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember" xlink:label="loc_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_869BD2E3BE595DEA9BD95EFA22406BFA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_869BD2E3BE595DEA9BD95EFA22406BFA" xlink:to="lab_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_869BD2E3BE595DEA9BD95EFA22406BFA" xlink:type="arc"/>
<link:label id="lab_us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding_5115E3B71E999ED11D99B88F96C9A0CF_terseLabel_en-US" xlink:label="lab_us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding_2DBE35BFEC565C9384753DF667286338" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Receivables sold </link:label>
<link:label id="lab_us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding_5115E3B71E999ED11D99B88F96C9A0CF_label_en-US" xlink:label="lab_us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding_2DBE35BFEC565C9384753DF667286338" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Continuing Involvement with Transferred Financial Assets, Principal Amount Outstanding </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding" xlink:label="loc_us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding_2DBE35BFEC565C9384753DF667286338" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding_2DBE35BFEC565C9384753DF667286338" xlink:to="lab_us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding_2DBE35BFEC565C9384753DF667286338" xlink:type="arc"/>
<link:label id="lab_us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_6FF27CE99D92C7E2C5E0B88F96C9C08D_terseLabel_en-US" xlink:label="lab_us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_9C5EE00EB1C550D0BC67EE3FF6289BD2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Less: Retained interests </link:label>
<link:label id="lab_us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_6FF27CE99D92C7E2C5E0B88F96C9C08D_label_en-US" xlink:label="lab_us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_9C5EE00EB1C550D0BC67EE3FF6289BD2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Continuing Involvement with Continued to be Recognized Transferred Financial Assets, Amount Outstanding </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding" xlink:label="loc_us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_9C5EE00EB1C550D0BC67EE3FF6289BD2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_9C5EE00EB1C550D0BC67EE3FF6289BD2" xlink:to="lab_us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_9C5EE00EB1C550D0BC67EE3FF6289BD2" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_A87061035986E09AEC19B88F96CA4C01_terseLabel_en-US" xlink:label="lab_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_2592F82E0CFD548989462FF6C69EECB1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net receivables sold </link:label>
<link:label id="lab_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_A87061035986E09AEC19B88F96CA4C01_label_en-US" xlink:label="lab_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_2592F82E0CFD548989462FF6C69EECB1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Continuing Involvement with Derecognized Transferred Financial Assets, Amount Outstanding </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding" xlink:label="loc_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_2592F82E0CFD548989462FF6C69EECB1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_2592F82E0CFD548989462FF6C69EECB1" xlink:to="lab_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_2592F82E0CFD548989462FF6C69EECB1" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasePayments_E3A462BE0B3CB14BB7303C6AB012E4B1_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments_E3A462BE0B3CB14BB7303C6AB012E4B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating cash flows from operating leases </link:label>
<link:label id="lab_us-gaap_OperatingLeasePayments_E3A462BE0B3CB14BB7303C6AB012E4B1_label_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments_E3A462BE0B3CB14BB7303C6AB012E4B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Payments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasePayments" xlink:label="loc_us-gaap_OperatingLeasePayments_E3A462BE0B3CB14BB7303C6AB012E4B1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasePayments_E3A462BE0B3CB14BB7303C6AB012E4B1" xlink:to="lab_us-gaap_OperatingLeasePayments_E3A462BE0B3CB14BB7303C6AB012E4B1" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseCost_1A22B8612959FC22325F3C6AB012EC54_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseCost_1A22B8612959FC22325F3C6AB012EC54" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease expense </link:label>
<link:label id="lab_us-gaap_OperatingLeaseCost_1A22B8612959FC22325F3C6AB012EC54_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseCost_1A22B8612959FC22325F3C6AB012EC54" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseCost" xlink:label="loc_us-gaap_OperatingLeaseCost_1A22B8612959FC22325F3C6AB012EC54" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseCost_1A22B8612959FC22325F3C6AB012EC54" xlink:to="lab_us-gaap_OperatingLeaseCost_1A22B8612959FC22325F3C6AB012EC54" xlink:type="arc"/>
<link:label id="lab_us-gaap_ShortTermLeaseCost_11AB46ACBED488FE50D33C6AB0128AC1_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermLeaseCost_11AB46ACBED488FE50D33C6AB0128AC1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Short-term lease expense </link:label>
<link:label id="lab_us-gaap_ShortTermLeaseCost_11AB46ACBED488FE50D33C6AB0128AC1_label_en-US" xlink:label="lab_us-gaap_ShortTermLeaseCost_11AB46ACBED488FE50D33C6AB0128AC1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Short-term Lease, Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermLeaseCost" xlink:label="loc_us-gaap_ShortTermLeaseCost_11AB46ACBED488FE50D33C6AB0128AC1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShortTermLeaseCost_11AB46ACBED488FE50D33C6AB0128AC1" xlink:to="lab_us-gaap_ShortTermLeaseCost_11AB46ACBED488FE50D33C6AB0128AC1" xlink:type="arc"/>
<link:label id="lab_us-gaap_VariableLeaseCost_7C6A8FB966632C04577F3C6AB01645B3_terseLabel_en-US" xlink:label="lab_us-gaap_VariableLeaseCost_7C6A8FB966632C04577F3C6AB01645B3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable lease expense </link:label>
<link:label id="lab_us-gaap_VariableLeaseCost_7C6A8FB966632C04577F3C6AB01645B3_label_en-US" xlink:label="lab_us-gaap_VariableLeaseCost_7C6A8FB966632C04577F3C6AB01645B3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Lease, Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableLeaseCost" xlink:label="loc_us-gaap_VariableLeaseCost_7C6A8FB966632C04577F3C6AB01645B3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableLeaseCost_7C6A8FB966632C04577F3C6AB01645B3" xlink:to="lab_us-gaap_VariableLeaseCost_7C6A8FB966632C04577F3C6AB01645B3" xlink:type="arc"/>
<link:label id="lab_duk_FinanceLeaseExpenseAbstract_E0DB20727E845073D5013C6AB01698BB_terseLabel_en-US" xlink:label="lab_duk_FinanceLeaseExpenseAbstract_E0DB20727E845073D5013C6AB01698BB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance lease expense </link:label>
<link:label id="lab_duk_FinanceLeaseExpenseAbstract_E0DB20727E845073D5013C6AB01698BB_label_en-US" xlink:label="lab_duk_FinanceLeaseExpenseAbstract_E0DB20727E845073D5013C6AB01698BB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Expense [Abstract] </link:label>
<link:label id="lab_duk_FinanceLeaseExpenseAbstract_E0DB20727E845073D5013C6AB01698BB_documentation_en-US" xlink:label="lab_duk_FinanceLeaseExpenseAbstract_E0DB20727E845073D5013C6AB01698BB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Finance Lease, Expense [Abstract] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_FinanceLeaseExpenseAbstract" xlink:label="loc_duk_FinanceLeaseExpenseAbstract_E0DB20727E845073D5013C6AB01698BB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_FinanceLeaseExpenseAbstract_E0DB20727E845073D5013C6AB01698BB" xlink:to="lab_duk_FinanceLeaseExpenseAbstract_E0DB20727E845073D5013C6AB01698BB" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_2F414EA62C502F98087A3C6AB01670E5_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_2F414EA62C502F98087A3C6AB01670E5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of leased assets </link:label>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_2F414EA62C502F98087A3C6AB01670E5_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_2F414EA62C502F98087A3C6AB01670E5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Right-of-Use Asset, Amortization </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_2F414EA62C502F98087A3C6AB01670E5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_2F414EA62C502F98087A3C6AB01670E5" xlink:to="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_2F414EA62C502F98087A3C6AB01670E5" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseInterestExpense_E8CBC13CCBE457C68BFC3C6AB0160689_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestExpense_E8CBC13CCBE457C68BFC3C6AB0160689" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest on lease liabilities </link:label>
<link:label id="lab_us-gaap_FinanceLeaseInterestExpense_E8CBC13CCBE457C68BFC3C6AB0160689_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestExpense_E8CBC13CCBE457C68BFC3C6AB0160689" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Interest Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseInterestExpense" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_E8CBC13CCBE457C68BFC3C6AB0160689" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseInterestExpense_E8CBC13CCBE457C68BFC3C6AB0160689" xlink:to="lab_us-gaap_FinanceLeaseInterestExpense_E8CBC13CCBE457C68BFC3C6AB0160689" xlink:type="arc"/>
<link:label id="lab_duk_FinanceLeaseCost1_DF67931BDA95F7FFFF793C6AB016FC75_totalLabel_en-US" xlink:label="lab_duk_FinanceLeaseCost1_DF67931BDA95F7FFFF793C6AB016FC75" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total finance lease expense </link:label>
<link:label id="lab_duk_FinanceLeaseCost1_DF67931BDA95F7FFFF793C6AB016FC75_label_en-US" xlink:label="lab_duk_FinanceLeaseCost1_DF67931BDA95F7FFFF793C6AB016FC75" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Cost1 </link:label>
<link:label id="lab_duk_FinanceLeaseCost1_DF67931BDA95F7FFFF793C6AB016FC75_documentation_en-US" xlink:label="lab_duk_FinanceLeaseCost1_DF67931BDA95F7FFFF793C6AB016FC75" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Finance Lease, Cost1 </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_FinanceLeaseCost1" xlink:label="loc_duk_FinanceLeaseCost1_DF67931BDA95F7FFFF793C6AB016FC75" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_FinanceLeaseCost1_DF67931BDA95F7FFFF793C6AB016FC75" xlink:to="lab_duk_FinanceLeaseCost1_DF67931BDA95F7FFFF793C6AB016FC75" xlink:type="arc"/>
<link:label id="lab_us-gaap_LeaseCost_E8CFF3D57A992E750CA83C6AB01654E8_totalLabel_en-US" xlink:label="lab_us-gaap_LeaseCost_E8CFF3D57A992E750CA83C6AB01654E8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total lease expense </link:label>
<link:label id="lab_us-gaap_LeaseCost_E8CFF3D57A992E750CA83C6AB01654E8_label_en-US" xlink:label="lab_us-gaap_LeaseCost_E8CFF3D57A992E750CA83C6AB01654E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lease, Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseCost" xlink:label="loc_us-gaap_LeaseCost_E8CFF3D57A992E750CA83C6AB01654E8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability_00ACCF54260B44E0D4743C6AB016C1A2_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability_00ACCF54260B44E0D4743C6AB016C1A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating cash flows from finance leases </link:label>
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<link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_0C71A36ED98392F92C2B3C6AB016D231_label_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_0C71A36ED98392F92C2B3C6AB016D231" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Right-of-Use Asset Obtained in Exchange for Finance Lease Liability </link:label>
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<link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_B2F1BA5A79AF0B4054DB3C6AB016A43B_terseLabel_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_B2F1BA5A79AF0B4054DB3C6AB016A43B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating, lease assets obtained </link:label>
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<link:label id="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_35EEDBFC6ECB4C345777B88F979AFE75_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_C214620E910A580FB1D19F7C6FF5F19D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock_E6B01788CEDD6D338804B88F979AAB11_label_en-US" xlink:label="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock_0EF7F0E81E125C4BB4EEE55AE49078C1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Line of Credit Facilities [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_DescriptionOfCreditRiskRelatedContingentFeaturesAbstract_C7BD69AA3F6F1589F94CB88F962ED924_terseLabel_en-US" xlink:label="lab_us-gaap_DescriptionOfCreditRiskRelatedContingentFeaturesAbstract_4BCED3D41034512696EC4E5A23A04AB5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Information Regarding Derivative Instruments That Contain Credit-Risk Related Contingent Features </link:label>
<link:label id="lab_us-gaap_DescriptionOfCreditRiskRelatedContingentFeaturesAbstract_C7BD69AA3F6F1589F94CB88F962ED924_label_en-US" xlink:label="lab_us-gaap_DescriptionOfCreditRiskRelatedContingentFeaturesAbstract_4BCED3D41034512696EC4E5A23A04AB5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Description of Credit Risk Related Contingent Features [Abstract] </link:label>
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<link:label id="lab_us-gaap_DerivativeNetLiabilityPositionAggregateFairValue_EBD52E815F7A71FFB9DDB88F962F368B_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeNetLiabilityPositionAggregateFairValue_285E08E8942C50789AD62D486E244C3E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Aggregate fair value amounts of derivative instruments in a net liability position </link:label>
<link:label id="lab_us-gaap_DerivativeNetLiabilityPositionAggregateFairValue_EBD52E815F7A71FFB9DDB88F962F368B_label_en-US" xlink:label="lab_us-gaap_DerivativeNetLiabilityPositionAggregateFairValue_285E08E8942C50789AD62D486E244C3E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative, Net Liability Position, Aggregate Fair Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNetLiabilityPositionAggregateFairValue" xlink:label="loc_us-gaap_DerivativeNetLiabilityPositionAggregateFairValue_285E08E8942C50789AD62D486E244C3E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AdditionalCollateralAggregateFairValue_039BC2ABA10D06F5A223B88F962F6447_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalCollateralAggregateFairValue_866E8F7CEF315140A9904989AFC067CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered </link:label>
<link:label id="lab_us-gaap_AdditionalCollateralAggregateFairValue_039BC2ABA10D06F5A223B88F962F6447_label_en-US" xlink:label="lab_us-gaap_AdditionalCollateralAggregateFairValue_866E8F7CEF315140A9904989AFC067CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Additional Collateral, Aggregate Fair Value </link:label>
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<link:label id="lab_us-gaap_IncomeTaxDisclosureAbstract_05548DE1E2F9B3C07CC5B88F97E55724_label_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureAbstract_DF6611CE39945FA0921A28FC872E97EE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Tax Disclosure [Abstract] </link:label>
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<link:label id="lab_us-gaap_IncomeTaxDisclosureTextBlock_6EC670A78681148F5958B88F97E5A6D3_label_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock_299BC147ACAD59D6A72590F15CD47612" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Tax Disclosure [Text Block] </link:label>
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<link:label id="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_42C9C192129D480225B2636C64E19E20_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_42C9C192129D480225B2636C64E19E20" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule Of Unbilled Revenues With Restricted Receivables </link:label>
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<link:label id="lab_us-gaap_FirstMortgageMember_6E5100970509E9F65DC1DF749D1A9D2D_verboseLabel_en-US" xlink:label="lab_us-gaap_FirstMortgageMember_6E5100970509E9F65DC1DF749D1A9D2D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> First Mortgage Bonds [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FirstMortgageMember" xlink:label="loc_us-gaap_FirstMortgageMember_6E5100970509E9F65DC1DF749D1A9D2D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FirstMortgageMember_6E5100970509E9F65DC1DF749D1A9D2D" xlink:to="lab_us-gaap_FirstMortgageMember_6E5100970509E9F65DC1DF749D1A9D2D" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherDebtSecuritiesMember_3E77B5457DF39B5C5734DF749D1AB07B_terseLabel_en-US" xlink:label="lab_us-gaap_OtherDebtSecuritiesMember_3E77B5457DF39B5C5734DF749D1AB07B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other debt obligations [Member] </link:label>
<link:label id="lab_us-gaap_OtherDebtSecuritiesMember_3E77B5457DF39B5C5734DF749D1AB07B_label_en-US" xlink:label="lab_us-gaap_OtherDebtSecuritiesMember_3E77B5457DF39B5C5734DF749D1AB07B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Debt Obligations [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherDebtSecuritiesMember" xlink:label="loc_us-gaap_OtherDebtSecuritiesMember_3E77B5457DF39B5C5734DF749D1AB07B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherDebtSecuritiesMember_3E77B5457DF39B5C5734DF749D1AB07B" xlink:to="lab_us-gaap_OtherDebtSecuritiesMember_3E77B5457DF39B5C5734DF749D1AB07B" xlink:type="arc"/>
<link:label id="lab_duk_DebtMaturingSeptember20195.050CouponMember_071DC1CA90D8CEF153B8DF749D1AF449_terseLabel_en-US" xlink:label="lab_duk_DebtMaturingSeptember20195.050CouponMember_071DC1CA90D8CEF153B8DF749D1AF449" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Maturing September 2019, 5.050% Coupon [Member] </link:label>
<link:label id="lab_duk_DebtMaturingSeptember20195.050CouponMember_071DC1CA90D8CEF153B8DF749D1AF449_label_en-US" xlink:label="lab_duk_DebtMaturingSeptember20195.050CouponMember_071DC1CA90D8CEF153B8DF749D1AF449" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Maturing September 2019, 5.050% Coupon [Member] </link:label>
<link:label id="lab_duk_DebtMaturingSeptember20195.050CouponMember_071DC1CA90D8CEF153B8DF749D1AF449_documentation_en-US" xlink:label="lab_duk_DebtMaturingSeptember20195.050CouponMember_071DC1CA90D8CEF153B8DF749D1AF449" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt Maturing September 2019, 5.050% Coupon [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DebtMaturingSeptember20195.050CouponMember" xlink:label="loc_duk_DebtMaturingSeptember20195.050CouponMember_071DC1CA90D8CEF153B8DF749D1AF449" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_DebtMaturingSeptember20195.050CouponMember_071DC1CA90D8CEF153B8DF749D1AF449" xlink:to="lab_duk_DebtMaturingSeptember20195.050CouponMember_071DC1CA90D8CEF153B8DF749D1AF449" xlink:type="arc"/>
<link:label id="lab_duk_DebtMaturingOctober20194.650CouponMember_C54117D2F243A667DD36DF749D1B61EB_terseLabel_en-US" xlink:label="lab_duk_DebtMaturingOctober20194.650CouponMember_C54117D2F243A667DD36DF749D1B61EB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Maturing October 2019, 4.650% Coupon [Member] </link:label>
<link:label id="lab_duk_DebtMaturingOctober20194.650CouponMember_C54117D2F243A667DD36DF749D1B61EB_label_en-US" xlink:label="lab_duk_DebtMaturingOctober20194.650CouponMember_C54117D2F243A667DD36DF749D1B61EB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Maturing October 2019, 4.650% Coupon [Member] </link:label>
<link:label id="lab_duk_DebtMaturingOctober20194.650CouponMember_C54117D2F243A667DD36DF749D1B61EB_documentation_en-US" xlink:label="lab_duk_DebtMaturingOctober20194.650CouponMember_C54117D2F243A667DD36DF749D1B61EB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt Maturing October 2019, 4.650% Coupon [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DebtMaturingOctober20194.650CouponMember" xlink:label="loc_duk_DebtMaturingOctober20194.650CouponMember_C54117D2F243A667DD36DF749D1B61EB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_DebtMaturingOctober20194.650CouponMember_C54117D2F243A667DD36DF749D1B61EB" xlink:to="lab_duk_DebtMaturingOctober20194.650CouponMember_C54117D2F243A667DD36DF749D1B61EB" xlink:type="arc"/>
<link:label id="lab_duk_DebtMaturingDecember20194.875CouponMember_739779AD8BF68F4C3DC5DF749D1B2774_terseLabel_en-US" xlink:label="lab_duk_DebtMaturingDecember20194.875CouponMember_739779AD8BF68F4C3DC5DF749D1B2774" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Maturing December 2019, 4.875% Coupon [Member] </link:label>
<link:label id="lab_duk_DebtMaturingDecember20194.875CouponMember_739779AD8BF68F4C3DC5DF749D1B2774_label_en-US" xlink:label="lab_duk_DebtMaturingDecember20194.875CouponMember_739779AD8BF68F4C3DC5DF749D1B2774" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Maturing December 2019, 4.875% Coupon [Member] </link:label>
<link:label id="lab_duk_DebtMaturingDecember20194.875CouponMember_739779AD8BF68F4C3DC5DF749D1B2774_documentation_en-US" xlink:label="lab_duk_DebtMaturingDecember20194.875CouponMember_739779AD8BF68F4C3DC5DF749D1B2774" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt Maturing December 2019, 4.875% Coupon [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DebtMaturingDecember20194.875CouponMember" xlink:label="loc_duk_DebtMaturingDecember20194.875CouponMember_739779AD8BF68F4C3DC5DF749D1B2774" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_DebtMaturingDecember20194.875CouponMember_739779AD8BF68F4C3DC5DF749D1B2774" xlink:to="lab_duk_DebtMaturingDecember20194.875CouponMember_739779AD8BF68F4C3DC5DF749D1B2774" xlink:type="arc"/>
<link:label id="lab_duk_DebtMaturingJune20202.100CouponMember_59016A77B66B3D3F770CDF749D1B10BE_terseLabel_en-US" xlink:label="lab_duk_DebtMaturingJune20202.100CouponMember_59016A77B66B3D3F770CDF749D1B10BE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Maturing June 2020, 2.100% Coupon [Member] </link:label>
<link:label id="lab_duk_DebtMaturingJune20202.100CouponMember_59016A77B66B3D3F770CDF749D1B10BE_label_en-US" xlink:label="lab_duk_DebtMaturingJune20202.100CouponMember_59016A77B66B3D3F770CDF749D1B10BE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Maturing June 2020, 2.100% Coupon [Member] </link:label>
<link:label id="lab_duk_DebtMaturingJune20202.100CouponMember_59016A77B66B3D3F770CDF749D1B10BE_documentation_en-US" xlink:label="lab_duk_DebtMaturingJune20202.100CouponMember_59016A77B66B3D3F770CDF749D1B10BE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt Maturing June 2020, 2.100% Coupon [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DebtMaturingJune20202.100CouponMember" xlink:label="loc_duk_DebtMaturingJune20202.100CouponMember_59016A77B66B3D3F770CDF749D1B10BE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_DebtMaturingJune20202.100CouponMember_59016A77B66B3D3F770CDF749D1B10BE" xlink:to="lab_duk_DebtMaturingJune20202.100CouponMember_59016A77B66B3D3F770CDF749D1B10BE" xlink:type="arc"/>
<link:label id="lab_duk_BondsMaturingJanuary20201.850CouponMember_F3A5151DE0D78F194AFFDF749D1BE5ED_terseLabel_en-US" xlink:label="lab_duk_BondsMaturingJanuary20201.850CouponMember_F3A5151DE0D78F194AFFDF749D1BE5ED" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Bonds Maturing January 2020, 1.850% Coupon [Member] </link:label>
<link:label id="lab_duk_BondsMaturingJanuary20201.850CouponMember_F3A5151DE0D78F194AFFDF749D1BE5ED_label_en-US" xlink:label="lab_duk_BondsMaturingJanuary20201.850CouponMember_F3A5151DE0D78F194AFFDF749D1BE5ED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Bonds Maturing January 2020, 1.850% Coupon [Member] </link:label>
<link:label id="lab_duk_BondsMaturingJanuary20201.850CouponMember_F3A5151DE0D78F194AFFDF749D1BE5ED_documentation_en-US" xlink:label="lab_duk_BondsMaturingJanuary20201.850CouponMember_F3A5151DE0D78F194AFFDF749D1BE5ED" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Bonds Maturing January 2020, 1.850% Coupon [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_BondsMaturingJanuary20201.850CouponMember" xlink:label="loc_duk_BondsMaturingJanuary20201.850CouponMember_F3A5151DE0D78F194AFFDF749D1BE5ED" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_BondsMaturingJanuary20201.850CouponMember_F3A5151DE0D78F194AFFDF749D1BE5ED" xlink:to="lab_duk_BondsMaturingJanuary20201.850CouponMember_F3A5151DE0D78F194AFFDF749D1BE5ED" xlink:type="arc"/>
<link:label id="lab_duk_BondsMaturingApril20204.550CouponMember_46F81FF20F1D7EADEAB3DF749D1B9C02_terseLabel_en-US" xlink:label="lab_duk_BondsMaturingApril20204.550CouponMember_46F81FF20F1D7EADEAB3DF749D1B9C02" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Bonds Maturing April 2020, 4.550% Coupon [Member] </link:label>
<link:label id="lab_duk_BondsMaturingApril20204.550CouponMember_46F81FF20F1D7EADEAB3DF749D1B9C02_label_en-US" xlink:label="lab_duk_BondsMaturingApril20204.550CouponMember_46F81FF20F1D7EADEAB3DF749D1B9C02" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Bonds Maturing April 2020, 4.550% Coupon [Member] </link:label>
<link:label id="lab_duk_BondsMaturingApril20204.550CouponMember_46F81FF20F1D7EADEAB3DF749D1B9C02_documentation_en-US" xlink:label="lab_duk_BondsMaturingApril20204.550CouponMember_46F81FF20F1D7EADEAB3DF749D1B9C02" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Bonds Maturing April 2020, 4.550% Coupon [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_BondsMaturingApril20204.550CouponMember" xlink:label="loc_duk_BondsMaturingApril20204.550CouponMember_46F81FF20F1D7EADEAB3DF749D1B9C02" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_BondsMaturingApril20204.550CouponMember_46F81FF20F1D7EADEAB3DF749D1B9C02" xlink:to="lab_duk_BondsMaturingApril20204.550CouponMember_46F81FF20F1D7EADEAB3DF749D1B9C02" xlink:type="arc"/>
<link:label id="lab_duk_BondsMaturingJune20204.300CouponMember_89EF76A3D1FDBE4D722DDF749D1B898E_terseLabel_en-US" xlink:label="lab_duk_BondsMaturingJune20204.300CouponMember_89EF76A3D1FDBE4D722DDF749D1B898E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Bonds Maturing June 2020, 4.300% Coupon [Member] </link:label>
<link:label id="lab_duk_BondsMaturingJune20204.300CouponMember_89EF76A3D1FDBE4D722DDF749D1B898E_label_en-US" xlink:label="lab_duk_BondsMaturingJune20204.300CouponMember_89EF76A3D1FDBE4D722DDF749D1B898E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Bonds Maturing June 2020, 4.300% Coupon [Member] </link:label>
<link:label id="lab_duk_BondsMaturingJune20204.300CouponMember_89EF76A3D1FDBE4D722DDF749D1B898E_documentation_en-US" xlink:label="lab_duk_BondsMaturingJune20204.300CouponMember_89EF76A3D1FDBE4D722DDF749D1B898E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Bonds Maturing June 2020, 4.300% Coupon [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_BondsMaturingJune20204.300CouponMember" xlink:label="loc_duk_BondsMaturingJune20204.300CouponMember_89EF76A3D1FDBE4D722DDF749D1B898E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_BondsMaturingJune20204.300CouponMember_89EF76A3D1FDBE4D722DDF749D1B898E" xlink:to="lab_duk_BondsMaturingJune20204.300CouponMember_89EF76A3D1FDBE4D722DDF749D1B898E" xlink:type="arc"/>
<link:label id="lab_duk_BondsMaturingJuly20203.750CouponMember_A7280960B4E396EA930BDF749D1C0575_terseLabel_en-US" xlink:label="lab_duk_BondsMaturingJuly20203.750CouponMember_A7280960B4E396EA930BDF749D1C0575" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Bonds Maturing July 2020, 3.750% Coupon [Member] </link:label>
<link:label id="lab_duk_BondsMaturingJuly20203.750CouponMember_A7280960B4E396EA930BDF749D1C0575_label_en-US" xlink:label="lab_duk_BondsMaturingJuly20203.750CouponMember_A7280960B4E396EA930BDF749D1C0575" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Bonds Maturing July 2020, 3.750% Coupon [Member] </link:label>
<link:label id="lab_duk_BondsMaturingJuly20203.750CouponMember_A7280960B4E396EA930BDF749D1C0575_documentation_en-US" xlink:label="lab_duk_BondsMaturingJuly20203.750CouponMember_A7280960B4E396EA930BDF749D1C0575" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Bonds Maturing July 2020, 3.750% Coupon [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_BondsMaturingJuly20203.750CouponMember" xlink:label="loc_duk_BondsMaturingJuly20203.750CouponMember_A7280960B4E396EA930BDF749D1C0575" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_BondsMaturingJuly20203.750CouponMember_A7280960B4E396EA930BDF749D1C0575" xlink:to="lab_duk_BondsMaturingJuly20203.750CouponMember_A7280960B4E396EA930BDF749D1C0575" xlink:type="arc"/>
<link:label id="lab_duk_BondsMaturingSeptember20202.282CouponMember_3FB7E1280DAFA38C7447DF749D1C1CD1_terseLabel_en-US" xlink:label="lab_duk_BondsMaturingSeptember20202.282CouponMember_3FB7E1280DAFA38C7447DF749D1C1CD1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Bonds Maturing September 2020, 2.282% Coupon [Member] </link:label>
<link:label id="lab_duk_BondsMaturingSeptember20202.282CouponMember_3FB7E1280DAFA38C7447DF749D1C1CD1_label_en-US" xlink:label="lab_duk_BondsMaturingSeptember20202.282CouponMember_3FB7E1280DAFA38C7447DF749D1C1CD1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Bonds Maturing September 2020, 2.282% Coupon [Member] </link:label>
<link:label id="lab_duk_BondsMaturingSeptember20202.282CouponMember_3FB7E1280DAFA38C7447DF749D1C1CD1_documentation_en-US" xlink:label="lab_duk_BondsMaturingSeptember20202.282CouponMember_3FB7E1280DAFA38C7447DF749D1C1CD1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Bonds Maturing September 2020, 2.282% Coupon [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_BondsMaturingSeptember20202.282CouponMember" xlink:label="loc_duk_BondsMaturingSeptember20202.282CouponMember_3FB7E1280DAFA38C7447DF749D1C1CD1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_BondsMaturingSeptember20202.282CouponMember_3FB7E1280DAFA38C7447DF749D1C1CD1" xlink:to="lab_duk_BondsMaturingSeptember20202.282CouponMember_3FB7E1280DAFA38C7447DF749D1C1CD1" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtCurrent_A59BE1C1DF2DCEB88382DF749D1CBA7B_verboseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtCurrent_A59BE1C1DF2DCEB88382DF749D1CBA7B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Current maturities of long-term debt </link:label>
<link:label id="lab_us-gaap_LongTermDebtCurrent_A59BE1C1DF2DCEB88382DF749D1CBA7B_label_en-US" xlink:label="lab_us-gaap_LongTermDebtCurrent_A59BE1C1DF2DCEB88382DF749D1CBA7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Current Maturities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_A59BE1C1DF2DCEB88382DF749D1CBA7B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtCurrent_A59BE1C1DF2DCEB88382DF749D1CBA7B" xlink:to="lab_us-gaap_LongTermDebtCurrent_A59BE1C1DF2DCEB88382DF749D1CBA7B" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetRetirementObligationAbstract_96866EC099B6AE34D88CB88F95E0FF9F_label_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationAbstract_BA66011446F659F9BB806A7D83C010F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligation [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetRetirementObligationAbstract" xlink:label="loc_us-gaap_AssetRetirementObligationAbstract_BA66011446F659F9BB806A7D83C010F7" xlink:type="locator"/>
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<link:label id="lab_duk_AssetRetirementObligationsTable_E1BB7F8BEB806947E4C1B88F95E00238_label_en-US" xlink:label="lab_duk_AssetRetirementObligationsTable_FD3F667B8163574385BD455863DB60E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligations [Table] </link:label>
<link:label id="lab_duk_AssetRetirementObligationsTable_E1BB7F8BEB806947E4C1B88F95E00238_documentation_en-US" xlink:label="lab_duk_AssetRetirementObligationsTable_FD3F667B8163574385BD455863DB60E7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Information and financial data about asset retirement obligations. </link:label>
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<link:label id="lab_duk_AssetRetirementObligationsLineItems_AB627878F93B91AE060AB88F95E2AD3C_label_en-US" xlink:label="lab_duk_AssetRetirementObligationsLineItems_8391D84333DF5C1F85D7E2B1970E2040" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligations [Line Items] </link:label>
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<link:label id="lab_us-gaap_AssetRetirementObligation_DB4E6F3496FEBC20E728B88F95E36E1F_label_en-US" xlink:label="lab_us-gaap_AssetRetirementObligation_ABBB4B7212A255988DCDFD2E1CC2B148" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligation </link:label>
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<link:label id="lab_us-gaap_AssetRetirementObligationAccretionExpense_C6559F8F5278D09334FEB88F95E4DFCE_terseLabel_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationAccretionExpense_C0C43CD7B2A757349693577919233666" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accretion expense </link:label>
<link:label id="lab_us-gaap_AssetRetirementObligationAccretionExpense_C6559F8F5278D09334FEB88F95E4DFCE_label_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationAccretionExpense_C0C43CD7B2A757349693577919233666" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligation, Accretion Expense </link:label>
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<link:label id="lab_us-gaap_AssetRetirementObligationLiabilitiesSettled_A40E6097997C41D1069EB88F95E453FD_label_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationLiabilitiesSettled_B1823270277D50EF8597BF17302249FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligation, Liabilities Settled </link:label>
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<link:label id="lab_duk_DEFPFMember_1691027C843A2D89535637126629987B_terseLabel_en-US" xlink:label="lab_duk_DEFPFMember_1691027C843A2D89535637126629987B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> DEFPF [Member] </link:label>
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<link:label id="lab_duk_DEFPFMember_1691027C843A2D89535637126629987B_documentation_en-US" xlink:label="lab_duk_DEFPFMember_1691027C843A2D89535637126629987B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Duke Energy Florida Project Finance LLC [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DEFPFMember" xlink:label="loc_duk_DEFPFMember_1691027C843A2D89535637126629987B" xlink:type="locator"/>
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<link:label id="lab_duk_PipelineInvestmentsMember_C38AAB9F56AA5328A564371266291CF8_terseLabel_en-US" xlink:label="lab_duk_PipelineInvestmentsMember_C38AAB9F56AA5328A564371266291CF8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Pipeline Investments [Member] </link:label>
<link:label id="lab_duk_PipelineInvestmentsMember_C38AAB9F56AA5328A564371266291CF8_label_en-US" xlink:label="lab_duk_PipelineInvestmentsMember_C38AAB9F56AA5328A564371266291CF8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Pipeline Investments [Member] </link:label>
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<link:label id="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_EBA451C39835D17D04CD37126629AE8A_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_EBA451C39835D17D04CD37126629AE8A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule Of Variable Interest Entities </link:label>
<link:label id="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_EBA451C39835D17D04CD37126629AE8A_label_en-US" xlink:label="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_EBA451C39835D17D04CD37126629AE8A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Variable Interest Entities [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_456AB6597D6A80727D641DA9A36EA395_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_456AB6597D6A80727D641DA9A36EA395" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Cash Flows [Abstract] </link:label>
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<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_B6AA38EC764F34F630361DA9A371FEF0_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_B6AA38EC764F34F630361DA9A371FEF0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> CASH FLOWS FROM OPERATING ACTIVITIES </link:label>
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<link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_C74F1941AA90DC30DD641DA9A37263A8_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization_C74F1941AA90DC30DD641DA9A37263A8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation, amortization and accretion (including amortization of nuclear fuel) </link:label>
<link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_C74F1941AA90DC30DD641DA9A37263A8_label_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization_C74F1941AA90DC30DD641DA9A37263A8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Depreciation, Depletion and Amortization </link:label>
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<link:label id="lab_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_BF898BDAB08BFBD32A7E1DA9A3727653_negatedLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_BF898BDAB08BFBD32A7E1DA9A3727653" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Equity component of AFUDC </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_BF898BDAB08BFBD32A7E1DA9A3727653_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_BF898BDAB08BFBD32A7E1DA9A3727653" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity" xlink:label="loc_us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity_BF898BDAB08BFBD32A7E1DA9A3727653" xlink:type="locator"/>
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<link:label id="lab_us-gaap_GainLossOnSaleOfOtherAssets_31A74E6E318C574A086F1DA9A3728A18_negatedLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfOtherAssets_31A74E6E318C574A086F1DA9A3728A18" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Losses on sales of other assets </link:label>
<link:label id="lab_us-gaap_GainLossOnSaleOfOtherAssets_31A74E6E318C574A086F1DA9A3728A18_label_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfOtherAssets_31A74E6E318C574A086F1DA9A3728A18" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Gain (Loss) on Disposition of Other Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainLossOnSaleOfOtherAssets" xlink:label="loc_us-gaap_GainLossOnSaleOfOtherAssets_31A74E6E318C574A086F1DA9A3728A18" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSaleOfOtherAssets_31A74E6E318C574A086F1DA9A3728A18" xlink:to="lab_us-gaap_GainLossOnSaleOfOtherAssets_31A74E6E318C574A086F1DA9A3728A18" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherAssetImpairmentCharges_20032E3A3E0017E6EA0B1DA9A37352B1_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetImpairmentCharges_20032E3A3E0017E6EA0B1DA9A37352B1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Impairment charges </link:label>
<link:label id="lab_us-gaap_OtherAssetImpairmentCharges_20032E3A3E0017E6EA0B1DA9A37352B1_label_en-US" xlink:label="lab_us-gaap_OtherAssetImpairmentCharges_20032E3A3E0017E6EA0B1DA9A37352B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Asset Impairment Charges </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetImpairmentCharges" xlink:label="loc_us-gaap_OtherAssetImpairmentCharges_20032E3A3E0017E6EA0B1DA9A37352B1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetImpairmentCharges_20032E3A3E0017E6EA0B1DA9A37352B1" xlink:to="lab_us-gaap_OtherAssetImpairmentCharges_20032E3A3E0017E6EA0B1DA9A37352B1" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_852C8AD06BD639B185CF1DA9A3731D32_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_852C8AD06BD639B185CF1DA9A3731D32" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Deferred income taxes </link:label>
<link:label id="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_852C8AD06BD639B185CF1DA9A3731D32_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_852C8AD06BD639B185CF1DA9A3731D32" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Income Taxes and Tax Credits </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_852C8AD06BD639B185CF1DA9A3731D32" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncomeLossFromEquityMethodInvestments_AF50D4815267E1ADDE861DA9A3737EE9_negatedLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromEquityMethodInvestments_AF50D4815267E1ADDE861DA9A3737EE9" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Equity in earnings of unconsolidated affiliates </link:label>
<link:label id="lab_us-gaap_IncomeLossFromEquityMethodInvestments_AF50D4815267E1ADDE861DA9A3737EE9_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromEquityMethodInvestments_AF50D4815267E1ADDE861DA9A3737EE9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Equity Method Investments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_AF50D4815267E1ADDE861DA9A3737EE9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromEquityMethodInvestments_AF50D4815267E1ADDE861DA9A3737EE9" xlink:to="lab_us-gaap_IncomeLossFromEquityMethodInvestments_AF50D4815267E1ADDE861DA9A3737EE9" xlink:type="arc"/>
<link:label id="lab_us-gaap_PensionAndOtherPostretirementBenefitExpense_6EBE32B29C5CC239D6D31DA9A373DB3A_terseLabel_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementBenefitExpense_6EBE32B29C5CC239D6D31DA9A373DB3A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued pension and other post-retirement benefit costs </link:label>
<link:label id="lab_us-gaap_PensionAndOtherPostretirementBenefitExpense_6EBE32B29C5CC239D6D31DA9A373DB3A_label_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementBenefitExpense_6EBE32B29C5CC239D6D31DA9A373DB3A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Pension and Other Postretirement Benefits Cost (Reversal of Cost) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitExpense" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitExpense_6EBE32B29C5CC239D6D31DA9A373DB3A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionAndOtherPostretirementBenefitExpense_6EBE32B29C5CC239D6D31DA9A373DB3A" xlink:to="lab_us-gaap_PensionAndOtherPostretirementBenefitExpense_6EBE32B29C5CC239D6D31DA9A373DB3A" xlink:type="arc"/>
<link:label id="lab_us-gaap_PensionContributions_7C0304BF10027943EBE31DA9A373C54C_negatedLabel_en-US" xlink:label="lab_us-gaap_PensionContributions_7C0304BF10027943EBE31DA9A373C54C" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Contributions to qualified pension plans </link:label>
<link:label id="lab_us-gaap_PensionContributions_7C0304BF10027943EBE31DA9A373C54C_label_en-US" xlink:label="lab_us-gaap_PensionContributions_7C0304BF10027943EBE31DA9A373C54C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payment for Pension Benefits </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PensionContributions" xlink:label="loc_us-gaap_PensionContributions_7C0304BF10027943EBE31DA9A373C54C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionContributions_7C0304BF10027943EBE31DA9A373C54C" xlink:to="lab_us-gaap_PensionContributions_7C0304BF10027943EBE31DA9A373C54C" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetRetirementObligationCashPaidToSettle_6317F86D7A4269F392251DA9A37408B7_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationCashPaidToSettle_6317F86D7A4269F392251DA9A37408B7" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Payments for asset retirement obligations </link:label>
<link:label id="lab_us-gaap_AssetRetirementObligationCashPaidToSettle_6317F86D7A4269F392251DA9A37408B7_label_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationCashPaidToSettle_6317F86D7A4269F392251DA9A37408B7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligation, Cash Paid to Settle </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetRetirementObligationCashPaidToSettle" xlink:label="loc_us-gaap_AssetRetirementObligationCashPaidToSettle_6317F86D7A4269F392251DA9A37408B7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetRetirementObligationCashPaidToSettle_6317F86D7A4269F392251DA9A37408B7" xlink:to="lab_us-gaap_AssetRetirementObligationCashPaidToSettle_6317F86D7A4269F392251DA9A37408B7" xlink:type="arc"/>
<link:label id="lab_duk_PaymentForDisposalOfOtherAssets_EEC0301851758DF237511DA9A3745B18_negatedTerseLabel_en-US" xlink:label="lab_duk_PaymentForDisposalOfOtherAssets_EEC0301851758DF237511DA9A3745B18" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Payment for disposal of other assets </link:label>
<link:label id="lab_duk_PaymentForDisposalOfOtherAssets_EEC0301851758DF237511DA9A3745B18_label_en-US" xlink:label="lab_duk_PaymentForDisposalOfOtherAssets_EEC0301851758DF237511DA9A3745B18" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payment For Disposal Of Other Assets </link:label>
<link:label id="lab_duk_PaymentForDisposalOfOtherAssets_EEC0301851758DF237511DA9A3745B18_documentation_en-US" xlink:label="lab_duk_PaymentForDisposalOfOtherAssets_EEC0301851758DF237511DA9A3745B18" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The cash outflow associated with the payment for the disposal of other assets. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PaymentForDisposalOfOtherAssets" xlink:label="loc_duk_PaymentForDisposalOfOtherAssets_EEC0301851758DF237511DA9A3745B18" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PaymentForDisposalOfOtherAssets_EEC0301851758DF237511DA9A3745B18" xlink:to="lab_duk_PaymentForDisposalOfOtherAssets_EEC0301851758DF237511DA9A3745B18" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_35D20BE759A53F39A2E21DA9A374883C_terseLabel_en-US" xlink:label="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_35D20BE759A53F39A2E21DA9A374883C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other rate case adjustments </link:label>
<link:label id="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_35D20BE759A53F39A2E21DA9A374883C_label_en-US" xlink:label="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_35D20BE759A53F39A2E21DA9A374883C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Operating Activities, Cash Flow Statement </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_35D20BE759A53F39A2E21DA9A374883C" xlink:type="locator"/>
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<link:label id="lab_duk_ProvisionForRateRefunds_EB71B14938152459D9E81DA9A374E669_terseLabel_en-US" xlink:label="lab_duk_ProvisionForRateRefunds_EB71B14938152459D9E81DA9A374E669" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Provision for rate refunds </link:label>
<link:label id="lab_duk_ProvisionForRateRefunds_EB71B14938152459D9E81DA9A374E669_label_en-US" xlink:label="lab_duk_ProvisionForRateRefunds_EB71B14938152459D9E81DA9A374E669" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Provision For Rate Refunds </link:label>
<link:label id="lab_duk_ProvisionForRateRefunds_EB71B14938152459D9E81DA9A374E669_documentation_en-US" xlink:label="lab_duk_ProvisionForRateRefunds_EB71B14938152459D9E81DA9A374E669" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Provision for rate refunds resulting from impacts of the federal statutory tax rate changing as a result of the Tax Cut and Jobs Act. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_ProvisionForRateRefunds" xlink:label="loc_duk_ProvisionForRateRefunds_EB71B14938152459D9E81DA9A374E669" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_418812CF289C2E28BA681DA9A3744CD6_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_418812CF289C2E28BA681DA9A3744CD6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> (Increase) decrease in </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_418812CF289C2E28BA681DA9A3744CD6_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_418812CF289C2E28BA681DA9A3744CD6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Operating Assets [Abstract] </link:label>
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<link:label id="lab_us-gaap_UnrealizedGainLossOnDerivatives_CB93CAA66C21A5C1D87B1DA9A3741285_negatedLabel_en-US" xlink:label="lab_us-gaap_UnrealizedGainLossOnDerivatives_CB93CAA66C21A5C1D87B1DA9A3741285" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Net realized and unrealized mark-to-market and hedging transactions </link:label>
<link:label id="lab_us-gaap_UnrealizedGainLossOnDerivatives_CB93CAA66C21A5C1D87B1DA9A3741285_label_en-US" xlink:label="lab_us-gaap_UnrealizedGainLossOnDerivatives_CB93CAA66C21A5C1D87B1DA9A3741285" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Unrealized Gain (Loss) on Derivatives </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UnrealizedGainLossOnDerivatives" xlink:label="loc_us-gaap_UnrealizedGainLossOnDerivatives_CB93CAA66C21A5C1D87B1DA9A3741285" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInReceivables_8E2817713F13A74AC03F1DA9A375F299_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInReceivables_8E2817713F13A74AC03F1DA9A375F299" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Receivables </link:label>
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<link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties_CCDB5359E69A5BA9F6071DA9A376D239_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties_CCDB5359E69A5BA9F6071DA9A376D239" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accounts payable to affiliated companies </link:label>
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<link:label id="lab_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_2842FA6CAC33FCF759591DA9A376DACF_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_2842FA6CAC33FCF759591DA9A376DACF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Other Current Liabilities </link:label>
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<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_181CBF2D200A1D8814DC1DA9A377537C_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_181CBF2D200A1D8814DC1DA9A377537C" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by operating activities </link:label>
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<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_74EE32C6EB1BB3DCC0991DA9A3776AD4_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_74EE32C6EB1BB3DCC0991DA9A3776AD4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> CASH FLOWS FROM INVESTING ACTIVITIES </link:label>
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<link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_ACBD5FE9BFA3D2B8FDED1DA9A3776128_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_ACBD5FE9BFA3D2B8FDED1DA9A3776128" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Capital expenditures </link:label>
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<link:label id="lab_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_3BDD89F72F28C58951DE1DA9A3776C1C_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_3BDD89F72F28C58951DE1DA9A3776C1C" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Contributions to equity method investments </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_3BDD89F72F28C58951DE1DA9A3776C1C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PaymentsToAcquireInvestments_B2E6EC89B0B1FDACE9FB1DA9A37C8159_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireInvestments_B2E6EC89B0B1FDACE9FB1DA9A37C8159" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Purchases of debt and equity securities </link:label>
<link:label id="lab_us-gaap_PaymentsToAcquireInvestments_B2E6EC89B0B1FDACE9FB1DA9A37C8159_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireInvestments_B2E6EC89B0B1FDACE9FB1DA9A37C8159" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Investments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments_B2E6EC89B0B1FDACE9FB1DA9A37C8159" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_600A085AF62FE28112821DA9A37CE2B1_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_600A085AF62FE28112821DA9A37CE2B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from sales and maturities of debt and equity securities </link:label>
<link:label id="lab_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_600A085AF62FE28112821DA9A37CE2B1_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_600A085AF62FE28112821DA9A37CE2B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Sale, Maturity and Collection of Investments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:label="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_600A085AF62FE28112821DA9A37CE2B1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_F04ACBB63EBE3A6D15A11DA9A37CE1C5_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_F04ACBB63EBE3A6D15A11DA9A37CE1C5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net proceeds from the sales of other assets </link:label>
<link:label id="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_F04ACBB63EBE3A6D15A11DA9A37CE1C5_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_F04ACBB63EBE3A6D15A11DA9A37CE1C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Sale of Productive Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:label="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_F04ACBB63EBE3A6D15A11DA9A37CE1C5" xlink:type="locator"/>
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<link:label id="lab_duk_ProceedsOrPaymentsFromCollectionOrAdvanceToAffiliate_37EA1EAAE971BCEC22BC1DA9A37CDB13_terseLabel_en-US" xlink:label="lab_duk_ProceedsOrPaymentsFromCollectionOrAdvanceToAffiliate_37EA1EAAE971BCEC22BC1DA9A37CDB13" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notes receivable from affiliated companies </link:label>
<link:label id="lab_duk_ProceedsOrPaymentsFromCollectionOrAdvanceToAffiliate_37EA1EAAE971BCEC22BC1DA9A37CDB13_label_en-US" xlink:label="lab_duk_ProceedsOrPaymentsFromCollectionOrAdvanceToAffiliate_37EA1EAAE971BCEC22BC1DA9A37CDB13" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds Or Payments From Collection Or Advance To Affiliate </link:label>
<link:label id="lab_duk_ProceedsOrPaymentsFromCollectionOrAdvanceToAffiliate_37EA1EAAE971BCEC22BC1DA9A37CDB13_documentation_en-US" xlink:label="lab_duk_ProceedsOrPaymentsFromCollectionOrAdvanceToAffiliate_37EA1EAAE971BCEC22BC1DA9A37CDB13" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The cash inflow (outflow) from the collection (advancement) of money to an affiliated entity. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_ProceedsOrPaymentsFromCollectionOrAdvanceToAffiliate" xlink:label="loc_duk_ProceedsOrPaymentsFromCollectionOrAdvanceToAffiliate_37EA1EAAE971BCEC22BC1DA9A37CDB13" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_DF47112A826A15889F6C1DA9A37D91D8_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_DF47112A826A15889F6C1DA9A37D91D8" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_DF47112A826A15889F6C1DA9A37D91D8_label_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_DF47112A826A15889F6C1DA9A37D91D8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments for (Proceeds from) Other Investing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_DF47112A826A15889F6C1DA9A37D91D8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_E5416526A225B344E9911DA9A37D5E06_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_E5416526A225B344E9911DA9A37D5E06" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash used in investing activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_E5416526A225B344E9911DA9A37D5E06_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_E5416526A225B344E9911DA9A37D5E06" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_E5416526A225B344E9911DA9A37D5E06" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_C25C0AB7DD83F20D81D21DA9A37D9954_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_C25C0AB7DD83F20D81D21DA9A37D9954" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> CASH FLOWS FROM FINANCING ACTIVITIES </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_C25C0AB7DD83F20D81D21DA9A37D9954_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_C25C0AB7DD83F20D81D21DA9A37D9954" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_C25C0AB7DD83F20D81D21DA9A37D9954" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_C25C0AB7DD83F20D81D21DA9A37D9954" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_C25C0AB7DD83F20D81D21DA9A37D9954" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_EB388F942EE72C333A4B1DA9A37D61AF_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_EB388F942EE72C333A4B1DA9A37D61AF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from the issuance of long-term debt </link:label>
<link:label id="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_EB388F942EE72C333A4B1DA9A37D61AF_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_EB388F942EE72C333A4B1DA9A37D61AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Issuance of Long-term Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_EB388F942EE72C333A4B1DA9A37D61AF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_EB388F942EE72C333A4B1DA9A37D61AF" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_EB388F942EE72C333A4B1DA9A37D61AF" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_8ACFE881A9782335F3801DA9A37E3D6D_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_8ACFE881A9782335F3801DA9A37E3D6D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from the issuance of preferred stock </link:label>
<link:label id="lab_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_8ACFE881A9782335F3801DA9A37E3D6D_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_8ACFE881A9782335F3801DA9A37E3D6D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Issuance of Preferred Stock and Preference Stock </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_8ACFE881A9782335F3801DA9A37E3D6D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_616D9032A94ED32EA3B31DA9A37E4FCB_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_616D9032A94ED32EA3B31DA9A37E4FCB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from the issuance of common stock </link:label>
<link:label id="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_616D9032A94ED32EA3B31DA9A37E4FCB_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_616D9032A94ED32EA3B31DA9A37E4FCB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Issuance or Sale of Equity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_616D9032A94ED32EA3B31DA9A37E4FCB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_C3A17AF87E7C9C6743471DA9A37E44DD_negatedLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_C3A17AF87E7C9C6743471DA9A37E44DD" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Payments for the redemption of long-term debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_C3A17AF87E7C9C6743471DA9A37E44DD" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths_1D430E1A75787898380F1DA9A37EE5B9_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths_1D430E1A75787898380F1DA9A37EE5B9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from the issuance of short-term debt with original maturities greater than 90 days </link:label>
<link:label id="lab_us-gaap_ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths_1D430E1A75787898380F1DA9A37EE5B9_label_en-US" xlink:label="lab_us-gaap_ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths_1D430E1A75787898380F1DA9A37EE5B9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Short-term Debt, Maturing in More than Three Months </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths" xlink:label="loc_us-gaap_ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths_1D430E1A75787898380F1DA9A37EE5B9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths_CCFEB7E48099BF846A6A1DA9A37EE254_negatedLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths_CCFEB7E48099BF846A6A1DA9A37EE254" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Payments for the redemption of short-term debt with original maturities greater than 90 days </link:label>
<link:label id="lab_us-gaap_RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths_CCFEB7E48099BF846A6A1DA9A37EE254_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths_CCFEB7E48099BF846A6A1DA9A37EE254" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Repayments of Short-term Debt, Maturing in More than Three Months </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths" xlink:label="loc_us-gaap_RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths_CCFEB7E48099BF846A6A1DA9A37EE254" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_5E4FD210AAC569D8A3961DA9A37E0179_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_5E4FD210AAC569D8A3961DA9A37E0179" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notes payable and commercial paper </link:label>
<link:label id="lab_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_5E4FD210AAC569D8A3961DA9A37E0179_label_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_5E4FD210AAC569D8A3961DA9A37E0179" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from (Repayments of) Short-term Debt </link:label>
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<link:label id="lab_us-gaap_ProceedsFromRepaymentsOfRelatedPartyDebt_5214779A3E52E52843B11DA9A37FC15E_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfRelatedPartyDebt_5214779A3E52E52843B11DA9A37FC15E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notes payable to affiliated companies </link:label>
<link:label id="lab_us-gaap_ProceedsFromRepaymentsOfRelatedPartyDebt_5214779A3E52E52843B11DA9A37FC15E_label_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfRelatedPartyDebt_5214779A3E52E52843B11DA9A37FC15E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from (Repayments of) Related Party Debt </link:label>
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<link:label id="lab_us-gaap_PaymentsOfDistributionsToAffiliates_CF633EB50B4AA40724F11DA9A37F424E_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfDistributionsToAffiliates_CF633EB50B4AA40724F11DA9A37F424E" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Dividends to parent </link:label>
<link:label id="lab_us-gaap_PaymentsOfDistributionsToAffiliates_CF633EB50B4AA40724F11DA9A37F424E_label_en-US" xlink:label="lab_us-gaap_PaymentsOfDistributionsToAffiliates_CF633EB50B4AA40724F11DA9A37F424E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments of Distributions to Affiliates </link:label>
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<link:label id="lab_us-gaap_ProceedsFromContributionsFromParent_29D4A0AF10CD1E1FAED71DA9A37F50C7_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromContributionsFromParent_29D4A0AF10CD1E1FAED71DA9A37F50C7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Capital contributions from parent </link:label>
<link:label id="lab_us-gaap_ProceedsFromContributionsFromParent_29D4A0AF10CD1E1FAED71DA9A37F50C7_label_en-US" xlink:label="lab_us-gaap_ProceedsFromContributionsFromParent_29D4A0AF10CD1E1FAED71DA9A37F50C7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Contributions from Parent </link:label>
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<link:label id="lab_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_BAA8D5A58A8D9D0068DB1DA9A37F8B97_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_BAA8D5A58A8D9D0068DB1DA9A37F8B97" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Distributions to parent </link:label>
<link:label id="lab_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_BAA8D5A58A8D9D0068DB1DA9A37F8B97_label_en-US" xlink:label="lab_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_BAA8D5A58A8D9D0068DB1DA9A37F8B97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid" xlink:label="loc_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_BAA8D5A58A8D9D0068DB1DA9A37F8B97" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromMinorityShareholders_A0102C80EE0C6FE780D01DA9A37F20CF_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromMinorityShareholders_A0102C80EE0C6FE780D01DA9A37F20CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contributions from noncontrolling interests </link:label>
<link:label id="lab_us-gaap_ProceedsFromMinorityShareholders_A0102C80EE0C6FE780D01DA9A37F20CF_label_en-US" xlink:label="lab_us-gaap_ProceedsFromMinorityShareholders_A0102C80EE0C6FE780D01DA9A37F20CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Noncontrolling Interests </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromMinorityShareholders" xlink:label="loc_us-gaap_ProceedsFromMinorityShareholders_A0102C80EE0C6FE780D01DA9A37F20CF" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PaymentsOfOrdinaryDividends_9D1E76565472B21AE9D51DA9A37FB932_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfOrdinaryDividends_9D1E76565472B21AE9D51DA9A37FB932" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Dividends paid </link:label>
<link:label id="lab_us-gaap_PaymentsOfOrdinaryDividends_9D1E76565472B21AE9D51DA9A37FB932_label_en-US" xlink:label="lab_us-gaap_PaymentsOfOrdinaryDividends_9D1E76565472B21AE9D51DA9A37FB932" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments of Ordinary Dividends </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsOfOrdinaryDividends" xlink:label="loc_us-gaap_PaymentsOfOrdinaryDividends_9D1E76565472B21AE9D51DA9A37FB932" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_43EC3D39FF42D162F66E1DA9A380D0DE_verboseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_43EC3D39FF42D162F66E1DA9A380D0DE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_43EC3D39FF42D162F66E1DA9A380D0DE_label_en-US" xlink:label="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_43EC3D39FF42D162F66E1DA9A380D0DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from (Payments for) Other Financing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_43EC3D39FF42D162F66E1DA9A380D0DE" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_7F384DED7088532F51941DA9A380590A_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_7F384DED7088532F51941DA9A380590A" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by financing activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_7F384DED7088532F51941DA9A380590A_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_7F384DED7088532F51941DA9A380590A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7F384DED7088532F51941DA9A380590A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_7EF17E2A3584FA259BCC1DA9A3801CA5_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_7EF17E2A3584FA259BCC1DA9A3801CA5" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net decrease in cash, cash equivalents and restricted cash </link:label>
<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_7EF17E2A3584FA259BCC1DA9A3801CA5_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_7EF17E2A3584FA259BCC1DA9A3801CA5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_7EF17E2A3584FA259BCC1DA9A3801CA5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_3FBABE5598FB7CB184F91DA9A3809449_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_3FBABE5598FB7CB184F91DA9A3809449" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Cash, cash equivalents and restricted cash at beginning of period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_3FBABE5598FB7CB184F91DA9A3809449" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_B128263E71577F92CA871DA9A380CFA1_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_B128263E71577F92CA871DA9A380CFA1" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Cash, cash equivalents and restricted cash at end of period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_B128263E71577F92CA871DA9A380CFA1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NoncashInvestingAndFinancingItemsAbstract_615F89BF4C3813A6D8421DA9A3804B95_terseLabel_en-US" xlink:label="lab_us-gaap_NoncashInvestingAndFinancingItemsAbstract_615F89BF4C3813A6D8421DA9A3804B95" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Significant non-cash transactions: </link:label>
<link:label id="lab_us-gaap_NoncashInvestingAndFinancingItemsAbstract_615F89BF4C3813A6D8421DA9A3804B95_label_en-US" xlink:label="lab_us-gaap_NoncashInvestingAndFinancingItemsAbstract_615F89BF4C3813A6D8421DA9A3804B95" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Noncash Investing and Financing Items [Abstract] </link:label>
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<link:label id="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EC93686AF68EFF18F2F11DA9A381E2DF_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EC93686AF68EFF18F2F11DA9A381E2DF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued capital expenditures </link:label>
<link:label id="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EC93686AF68EFF18F2F11DA9A381E2DF_label_en-US" xlink:label="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EC93686AF68EFF18F2F11DA9A381E2DF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Expenditures Incurred but Not yet Paid </link:label>
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<link:label id="lab_us-gaap_DividendsCommonStockStock_179F4C668908F7C888691DA9A381D7CF_terseLabel_en-US" xlink:label="lab_us-gaap_DividendsCommonStockStock_179F4C668908F7C888691DA9A381D7CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Non-cash dividends </link:label>
<link:label id="lab_us-gaap_DividendsCommonStockStock_179F4C668908F7C888691DA9A381D7CF_label_en-US" xlink:label="lab_us-gaap_DividendsCommonStockStock_179F4C668908F7C888691DA9A381D7CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Dividends, Common Stock, Stock </link:label>
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<link:label id="lab_us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1_9897A60D922E661C280A1DA9A381DF94_terseLabel_en-US" xlink:label="lab_us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1_9897A60D922E661C280A1DA9A381DF94" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Non-cash equity contribution from parent </link:label>
<link:label id="lab_us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1_9897A60D922E661C280A1DA9A381DF94_label_en-US" xlink:label="lab_us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1_9897A60D922E661C280A1DA9A381DF94" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Significant Noncash Transaction, Value of Consideration Received </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1" xlink:label="loc_us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1_9897A60D922E661C280A1DA9A381DF94" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RelatedPartyTransactionsAbstract_425D5C2D2E61987051C7B88F967E29CA_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract_1C748709C1665BF88E06A27EA2BE6344" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transactions [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_1C748709C1665BF88E06A27EA2BE6344" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_1C748709C1665BF88E06A27EA2BE6344" xlink:to="lab_us-gaap_RelatedPartyTransactionsAbstract_1C748709C1665BF88E06A27EA2BE6344" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_1BAB4DED3CCDF84F0A2BB88F967EB1D3_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C00CDFA4CE705C93BA30B9D142703E85" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Related Party Transactions, by Related Party [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_1BAB4DED3CCDF84F0A2BB88F967EB1D3_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C00CDFA4CE705C93BA30B9D142703E85" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Related Party Transactions, by Related Party [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C00CDFA4CE705C93BA30B9D142703E85" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C00CDFA4CE705C93BA30B9D142703E85" xlink:to="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C00CDFA4CE705C93BA30B9D142703E85" xlink:type="arc"/>
<link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_3226769159FF3A60168FB88F968084E5_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems_523E25D00B7A57179AF7D6250BAFFED3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party Transaction [Line Items] </link:label>
<link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_3226769159FF3A60168FB88F968084E5_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems_523E25D00B7A57179AF7D6250BAFFED3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transaction [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_523E25D00B7A57179AF7D6250BAFFED3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_523E25D00B7A57179AF7D6250BAFFED3" xlink:to="lab_us-gaap_RelatedPartyTransactionLineItems_523E25D00B7A57179AF7D6250BAFFED3" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_D078C532ADE0856FD16DB88F9680F346_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_0630FA0D14BE5153AB1CCF5DB3268A22" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Related Party Transactions, Other Revenue and Expense </link:label>
<link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_D078C532ADE0856FD16DB88F9680F346_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_0630FA0D14BE5153AB1CCF5DB3268A22" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Related Party Transactions [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_0630FA0D14BE5153AB1CCF5DB3268A22" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_0630FA0D14BE5153AB1CCF5DB3268A22" xlink:to="lab_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_0630FA0D14BE5153AB1CCF5DB3268A22" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetRetirementObligationDisclosureTextBlock_BEE6044E022794BDED7EB88F97E8EFC0_terseLabel_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationDisclosureTextBlock_E9C7AD970015529D9746EE8DBE5A9E23" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligations </link:label>
<link:label id="lab_us-gaap_AssetRetirementObligationDisclosureTextBlock_BEE6044E022794BDED7EB88F97E8EFC0_label_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationDisclosureTextBlock_E9C7AD970015529D9746EE8DBE5A9E23" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligation Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureTextBlock" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureTextBlock_E9C7AD970015529D9746EE8DBE5A9E23" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RelatedPartyTransactionAxis_FF665E0F7E57F40E7BCD493D477B1DA1_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionAxis_2ECF97F20DB157C78D84FF66F50A7D8E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party Transaction [Axis] </link:label>
<link:label id="lab_us-gaap_RelatedPartyTransactionAxis_FF665E0F7E57F40E7BCD493D477B1DA1_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionAxis_2ECF97F20DB157C78D84FF66F50A7D8E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transaction [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_2ECF97F20DB157C78D84FF66F50A7D8E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_2ECF97F20DB157C78D84FF66F50A7D8E" xlink:to="lab_us-gaap_RelatedPartyTransactionAxis_2ECF97F20DB157C78D84FF66F50A7D8E" xlink:type="arc"/>
<link:label id="lab_us-gaap_RelatedPartyTransactionDomain_7518D22BE8DFAA56D2C0493D477B6C7B_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionDomain_B1CAB9EE76F15F63BACA6372EE0613E2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party Transaction [Domain] </link:label>
<link:label id="lab_us-gaap_RelatedPartyTransactionDomain_7518D22BE8DFAA56D2C0493D477B6C7B_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionDomain_B1CAB9EE76F15F63BACA6372EE0613E2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transaction [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionDomain" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_B1CAB9EE76F15F63BACA6372EE0613E2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_B1CAB9EE76F15F63BACA6372EE0613E2" xlink:to="lab_us-gaap_RelatedPartyTransactionDomain_B1CAB9EE76F15F63BACA6372EE0613E2" xlink:type="arc"/>
<link:label id="lab_duk_CorporateGovernanceAndSharedServiceExpensesMember_DB1A05D89F7A494D78B5493D477BC558_terseLabel_en-US" xlink:label="lab_duk_CorporateGovernanceAndSharedServiceExpensesMember_800A787AAC8954EDA70AC5DDF6CC9535" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Corporate governance and shared service expenses [Member] </link:label>
<link:label id="lab_duk_CorporateGovernanceAndSharedServiceExpensesMember_DB1A05D89F7A494D78B5493D477BC558_label_en-US" xlink:label="lab_duk_CorporateGovernanceAndSharedServiceExpensesMember_800A787AAC8954EDA70AC5DDF6CC9535" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Corporate Governance And Shared Service Expenses [Member] </link:label>
<link:label id="lab_duk_CorporateGovernanceAndSharedServiceExpensesMember_DB1A05D89F7A494D78B5493D477BC558_documentation_en-US" xlink:label="lab_duk_CorporateGovernanceAndSharedServiceExpensesMember_800A787AAC8954EDA70AC5DDF6CC9535" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Proportionate share of corporate governance and other costs, primarily related to human resources, employee benefits, legal and accounting fees, as well as other third party costs. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_CorporateGovernanceAndSharedServiceExpensesMember" xlink:label="loc_duk_CorporateGovernanceAndSharedServiceExpensesMember_800A787AAC8954EDA70AC5DDF6CC9535" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_CorporateGovernanceAndSharedServiceExpensesMember_800A787AAC8954EDA70AC5DDF6CC9535" xlink:to="lab_duk_CorporateGovernanceAndSharedServiceExpensesMember_800A787AAC8954EDA70AC5DDF6CC9535" xlink:type="arc"/>
<link:label id="lab_duk_IndemnificationCoveragesMember_F79349974DEE14D6622C493D477CDDA0_terseLabel_en-US" xlink:label="lab_duk_IndemnificationCoveragesMember_86E6D3069EF950C7BE8583E48B730E03" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Indemnification coverages [Member] </link:label>
<link:label id="lab_duk_IndemnificationCoveragesMember_F79349974DEE14D6622C493D477CDDA0_label_en-US" xlink:label="lab_duk_IndemnificationCoveragesMember_86E6D3069EF950C7BE8583E48B730E03" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Indemnification Coverages [Member] </link:label>
<link:label id="lab_duk_IndemnificationCoveragesMember_F79349974DEE14D6622C493D477CDDA0_documentation_en-US" xlink:label="lab_duk_IndemnificationCoveragesMember_86E6D3069EF950C7BE8583E48B730E03" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Certain indemnification coverages incurred through captive insurance subsidiary </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_IndemnificationCoveragesMember" xlink:label="loc_duk_IndemnificationCoveragesMember_86E6D3069EF950C7BE8583E48B730E03" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_IndemnificationCoveragesMember_86E6D3069EF950C7BE8583E48B730E03" xlink:to="lab_duk_IndemnificationCoveragesMember_86E6D3069EF950C7BE8583E48B730E03" xlink:type="arc"/>
<link:label id="lab_duk_JointDispatchAgreementMember_5F3CE618DF52866E36B6493D477CE0F8_terseLabel_en-US" xlink:label="lab_duk_JointDispatchAgreementMember_60E8AD338F48549995D69AB0BDA12C38" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> JDA [Member] </link:label>
<link:label id="lab_duk_JointDispatchAgreementMember_5F3CE618DF52866E36B6493D477CE0F8_label_en-US" xlink:label="lab_duk_JointDispatchAgreementMember_60E8AD338F48549995D69AB0BDA12C38" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Joint Dispatch Agreement [Member] </link:label>
<link:label id="lab_duk_JointDispatchAgreementMember_5F3CE618DF52866E36B6493D477CE0F8_documentation_en-US" xlink:label="lab_duk_JointDispatchAgreementMember_60E8AD338F48549995D69AB0BDA12C38" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Revenues or expenses from the joint dispatch agreement between Duke Energy Carolinas and Progress Energy Carolinas </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_JointDispatchAgreementMember" xlink:label="loc_duk_JointDispatchAgreementMember_60E8AD338F48549995D69AB0BDA12C38" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_JointDispatchAgreementMember_60E8AD338F48549995D69AB0BDA12C38" xlink:to="lab_duk_JointDispatchAgreementMember_60E8AD338F48549995D69AB0BDA12C38" xlink:type="arc"/>
<link:label id="lab_duk_IntercompanyNaturalGasTransactionsMember_32CAC4927165EE1DA251493D477CDAF7_terseLabel_en-US" xlink:label="lab_duk_IntercompanyNaturalGasTransactionsMember_0AECA7C9918F5DE689F5262C0885CE2D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Intercompany natural gas transactions [Member] </link:label>
<link:label id="lab_duk_IntercompanyNaturalGasTransactionsMember_32CAC4927165EE1DA251493D477CDAF7_label_en-US" xlink:label="lab_duk_IntercompanyNaturalGasTransactionsMember_0AECA7C9918F5DE689F5262C0885CE2D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Intercompany Natural Gas Transactions [Member] </link:label>
<link:label id="lab_duk_IntercompanyNaturalGasTransactionsMember_32CAC4927165EE1DA251493D477CDAF7_documentation_en-US" xlink:label="lab_duk_IntercompanyNaturalGasTransactionsMember_0AECA7C9918F5DE689F5262C0885CE2D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Intercompany Natural Gas Transactions between Piedmont Natural Gas and Duke Energy Carolinas/Duke Energy Progress </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_IntercompanyNaturalGasTransactionsMember" xlink:label="loc_duk_IntercompanyNaturalGasTransactionsMember_0AECA7C9918F5DE689F5262C0885CE2D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_IntercompanyNaturalGasTransactionsMember_0AECA7C9918F5DE689F5262C0885CE2D" xlink:to="lab_duk_IntercompanyNaturalGasTransactionsMember_0AECA7C9918F5DE689F5262C0885CE2D" xlink:type="arc"/>
<link:label id="lab_duk_NaturalGasStorageAndTransportationCostsMember_1D1032652C25AC8DB9DD493D477C10C1_terseLabel_en-US" xlink:label="lab_duk_NaturalGasStorageAndTransportationCostsMember_E65471ACCEFB50F4806F0D501C5937E6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Natural gas storage and transportation costs [Member] </link:label>
<link:label id="lab_duk_NaturalGasStorageAndTransportationCostsMember_1D1032652C25AC8DB9DD493D477C10C1_label_en-US" xlink:label="lab_duk_NaturalGasStorageAndTransportationCostsMember_E65471ACCEFB50F4806F0D501C5937E6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Natural Gas Storage And Transportation Costs [Member] </link:label>
<link:label id="lab_duk_NaturalGasStorageAndTransportationCostsMember_1D1032652C25AC8DB9DD493D477C10C1_documentation_en-US" xlink:label="lab_duk_NaturalGasStorageAndTransportationCostsMember_E65471ACCEFB50F4806F0D501C5937E6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Natural Gas Storage And Transportation Costs [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_NaturalGasStorageAndTransportationCostsMember" xlink:label="loc_duk_NaturalGasStorageAndTransportationCostsMember_E65471ACCEFB50F4806F0D501C5937E6" xlink:type="locator"/>
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<link:label id="lab_srt_AffiliatedEntityMember_975FF6E4594C7C2B87AD493D477D8A2C_terseLabel_en-US" xlink:label="lab_srt_AffiliatedEntityMember_242A6E2E7FDD53F0A6B58DBE0135776F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Affiliated Entity [Member] </link:label>
<link:label id="lab_srt_AffiliatedEntityMember_975FF6E4594C7C2B87AD493D477D8A2C_label_en-US" xlink:label="lab_srt_AffiliatedEntityMember_242A6E2E7FDD53F0A6B58DBE0135776F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Affiliated Entity [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_AffiliatedEntityMember" xlink:label="loc_srt_AffiliatedEntityMember_242A6E2E7FDD53F0A6B58DBE0135776F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty_761F855FF165FD6F4C17493D477D9B2E_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty_764BBCD7FB555A088CB15FE4478D7215" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related party transaction, other revenues from transactions with related party </link:label>
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<link:label id="lab_duk_CertainRenewableAssetsMember_9AD0D290BDE14EBE2872030B300B724E_terseLabel_en-US" xlink:label="lab_duk_CertainRenewableAssetsMember_9AD0D290BDE14EBE2872030B300B724E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Certain Renewable Assets [Member] </link:label>
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<link:label id="lab_duk_OperatingWindSolarAndBatteryStorageAssetsMember_C5C20B19C4B6D1B6E6AB030B300BB419_terseLabel_en-US" xlink:label="lab_duk_OperatingWindSolarAndBatteryStorageAssetsMember_C5C20B19C4B6D1B6E6AB030B300BB419" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Wind, Solar and Battery Storage Assets [Member] </link:label>
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<link:loc xlink:href="duk-20190930.xsd#duk_RenewableMerchantPlantsMember" xlink:label="loc_duk_RenewableMerchantPlantsMember_4260B506FA44C4BAD12D030B300B88BE" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_2F390BDFBAFE56CCE5E1030B300B63A6_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_2F390BDFBAFE56CCE5E1030B300B63A6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Disposal Group Name [Axis] </link:label>
<link:label id="lab_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_2F390BDFBAFE56CCE5E1030B300B63A6_label_en-US" xlink:label="lab_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_2F390BDFBAFE56CCE5E1030B300B63A6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Disposal Group Name [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_2F390BDFBAFE56CCE5E1030B300B63A6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_2F390BDFBAFE56CCE5E1030B300B63A6" xlink:to="lab_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_2F390BDFBAFE56CCE5E1030B300B63A6" xlink:type="arc"/>
<link:label id="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_DB81F7A35DD0D45DBD7F030B300B7CC7_terseLabel_en-US" xlink:label="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_DB81F7A35DD0D45DBD7F030B300B7CC7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Disposal Group Name [Domain] </link:label>
<link:label id="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_DB81F7A35DD0D45DBD7F030B300B7CC7_label_en-US" xlink:label="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_DB81F7A35DD0D45DBD7F030B300B7CC7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Disposal Group Name [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_DB81F7A35DD0D45DBD7F030B300B7CC7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_DB81F7A35DD0D45DBD7F030B300B7CC7" xlink:to="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_DB81F7A35DD0D45DBD7F030B300B7CC7" xlink:type="arc"/>
<link:label id="lab_duk_BeckjordMember_CC46C3D7EA573B003E88030B300BBE4B_terseLabel_en-US" xlink:label="lab_duk_BeckjordMember_CC46C3D7EA573B003E88030B300BBE4B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Beckjord [Member] </link:label>
<link:label id="lab_duk_BeckjordMember_CC46C3D7EA573B003E88030B300BBE4B_label_en-US" xlink:label="lab_duk_BeckjordMember_CC46C3D7EA573B003E88030B300BBE4B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Beckjord [Member] </link:label>
<link:label id="lab_duk_BeckjordMember_CC46C3D7EA573B003E88030B300BBE4B_documentation_en-US" xlink:label="lab_duk_BeckjordMember_CC46C3D7EA573B003E88030B300BBE4B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Beckjord nonregulated facility. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_BeckjordMember" xlink:label="loc_duk_BeckjordMember_CC46C3D7EA573B003E88030B300BBE4B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_BeckjordMember_CC46C3D7EA573B003E88030B300BBE4B" xlink:to="lab_duk_BeckjordMember_CC46C3D7EA573B003E88030B300BBE4B" xlink:type="arc"/>
<link:label id="lab_duk_NonregulatedRetiredFacilitySaleAxis_F4CEDCC47B0A11EE9E01030B300B1426_terseLabel_en-US" xlink:label="lab_duk_NonregulatedRetiredFacilitySaleAxis_F4CEDCC47B0A11EE9E01030B300B1426" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Nonregulated Retired Facility Sale [Axis] </link:label>
<link:label id="lab_duk_NonregulatedRetiredFacilitySaleAxis_F4CEDCC47B0A11EE9E01030B300B1426_label_en-US" xlink:label="lab_duk_NonregulatedRetiredFacilitySaleAxis_F4CEDCC47B0A11EE9E01030B300B1426" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Nonregulated Retired Facility Sale [Axis] </link:label>
<link:label id="lab_duk_NonregulatedRetiredFacilitySaleAxis_F4CEDCC47B0A11EE9E01030B300B1426_documentation_en-US" xlink:label="lab_duk_NonregulatedRetiredFacilitySaleAxis_F4CEDCC47B0A11EE9E01030B300B1426" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Sale of a nonregulated retired facility. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_NonregulatedRetiredFacilitySaleAxis" xlink:label="loc_duk_NonregulatedRetiredFacilitySaleAxis_F4CEDCC47B0A11EE9E01030B300B1426" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_NonregulatedRetiredFacilitySaleAxis_F4CEDCC47B0A11EE9E01030B300B1426" xlink:to="lab_duk_NonregulatedRetiredFacilitySaleAxis_F4CEDCC47B0A11EE9E01030B300B1426" xlink:type="arc"/>
<link:label id="lab_duk_NonregulatedRetiredFacilitySaleDomain_B4EC2A81DE091C9925FA030B300BBB04_terseLabel_en-US" xlink:label="lab_duk_NonregulatedRetiredFacilitySaleDomain_B4EC2A81DE091C9925FA030B300BBB04" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Nonregulated Retired Facility Sale [Domain] </link:label>
<link:label id="lab_duk_NonregulatedRetiredFacilitySaleDomain_B4EC2A81DE091C9925FA030B300BBB04_label_en-US" xlink:label="lab_duk_NonregulatedRetiredFacilitySaleDomain_B4EC2A81DE091C9925FA030B300BBB04" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Nonregulated Retired Facility Sale [Domain] </link:label>
<link:label id="lab_duk_NonregulatedRetiredFacilitySaleDomain_B4EC2A81DE091C9925FA030B300BBB04_documentation_en-US" xlink:label="lab_duk_NonregulatedRetiredFacilitySaleDomain_B4EC2A81DE091C9925FA030B300BBB04" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> [Domain] for Sale of a nonregulated retired facility. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_NonregulatedRetiredFacilitySaleDomain" xlink:label="loc_duk_NonregulatedRetiredFacilitySaleDomain_B4EC2A81DE091C9925FA030B300BBB04" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_NonregulatedRetiredFacilitySaleDomain_B4EC2A81DE091C9925FA030B300BBB04" xlink:to="lab_duk_NonregulatedRetiredFacilitySaleDomain_B4EC2A81DE091C9925FA030B300BBB04" xlink:type="arc"/>
<link:label id="lab_duk_SegmentReportingOwnershipDivested_25954BB9B8C956A8FF48030B300BDC79_terseLabel_en-US" xlink:label="lab_duk_SegmentReportingOwnershipDivested_25954BB9B8C956A8FF48030B300BDC79" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Ownership percent divested </link:label>
<link:label id="lab_duk_SegmentReportingOwnershipDivested_25954BB9B8C956A8FF48030B300BDC79_label_en-US" xlink:label="lab_duk_SegmentReportingOwnershipDivested_25954BB9B8C956A8FF48030B300BDC79" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segment Reporting, Ownership Divested </link:label>
<link:label id="lab_duk_SegmentReportingOwnershipDivested_25954BB9B8C956A8FF48030B300BDC79_documentation_en-US" xlink:label="lab_duk_SegmentReportingOwnershipDivested_25954BB9B8C956A8FF48030B300BDC79" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Segment Reporting, Ownership Divested </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_SegmentReportingOwnershipDivested" xlink:label="loc_duk_SegmentReportingOwnershipDivested_25954BB9B8C956A8FF48030B300BDC79" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_SegmentReportingOwnershipDivested_25954BB9B8C956A8FF48030B300BDC79" xlink:to="lab_duk_SegmentReportingOwnershipDivested_25954BB9B8C956A8FF48030B300BDC79" xlink:type="arc"/>
<link:label id="lab_duk_PropertyPlantAndEquipmentAssetsDivested_DE0B24A6B7B2D99FBA58030B300B7D60_terseLabel_en-US" xlink:label="lab_duk_PropertyPlantAndEquipmentAssetsDivested_DE0B24A6B7B2D99FBA58030B300B7D60" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Assets divested </link:label>
<link:label id="lab_duk_PropertyPlantAndEquipmentAssetsDivested_DE0B24A6B7B2D99FBA58030B300B7D60_label_en-US" xlink:label="lab_duk_PropertyPlantAndEquipmentAssetsDivested_DE0B24A6B7B2D99FBA58030B300B7D60" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant And Equipment, Assets Divested </link:label>
<link:label id="lab_duk_PropertyPlantAndEquipmentAssetsDivested_DE0B24A6B7B2D99FBA58030B300B7D60_documentation_en-US" xlink:label="lab_duk_PropertyPlantAndEquipmentAssetsDivested_DE0B24A6B7B2D99FBA58030B300B7D60" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Property, Plant And Equipment, Assets Divested </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PropertyPlantAndEquipmentAssetsDivested" xlink:label="loc_duk_PropertyPlantAndEquipmentAssetsDivested_DE0B24A6B7B2D99FBA58030B300B7D60" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PropertyPlantAndEquipmentAssetsDivested_DE0B24A6B7B2D99FBA58030B300B7D60" xlink:to="lab_duk_PropertyPlantAndEquipmentAssetsDivested_DE0B24A6B7B2D99FBA58030B300B7D60" xlink:type="arc"/>
<link:label id="lab_us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation_E5EA64BB7543CABF8F4803100D3FAF43_terseLabel_en-US" xlink:label="lab_us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation_E5EA64BB7543CABF8F4803100D3FAF43" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Sale of noncontrolling interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation" xlink:label="loc_us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation_E5EA64BB7543CABF8F4803100D3FAF43" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation_E5EA64BB7543CABF8F4803100D3FAF43" xlink:to="lab_us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation_E5EA64BB7543CABF8F4803100D3FAF43" xlink:type="arc"/>
<link:label id="lab_duk_NoncontrollingInterestDecreaseFromDeconsolidationTaxBenefit_EB4399DDB3F176DCB96C030ECBD90BB3_terseLabel_en-US" xlink:label="lab_duk_NoncontrollingInterestDecreaseFromDeconsolidationTaxBenefit_EB4399DDB3F176DCB96C030ECBD90BB3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Sale of noncontrolling interest, tax benefit </link:label>
<link:label id="lab_duk_NoncontrollingInterestDecreaseFromDeconsolidationTaxBenefit_EB4399DDB3F176DCB96C030ECBD90BB3_label_en-US" xlink:label="lab_duk_NoncontrollingInterestDecreaseFromDeconsolidationTaxBenefit_EB4399DDB3F176DCB96C030ECBD90BB3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest, Decrease From Deconsolidation, Tax Benefit </link:label>
<link:label id="lab_duk_NoncontrollingInterestDecreaseFromDeconsolidationTaxBenefit_EB4399DDB3F176DCB96C030ECBD90BB3_documentation_en-US" xlink:label="lab_duk_NoncontrollingInterestDecreaseFromDeconsolidationTaxBenefit_EB4399DDB3F176DCB96C030ECBD90BB3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest, Decrease From Deconsolidation, Tax Benefit </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_NoncontrollingInterestDecreaseFromDeconsolidationTaxBenefit" xlink:label="loc_duk_NoncontrollingInterestDecreaseFromDeconsolidationTaxBenefit_EB4399DDB3F176DCB96C030ECBD90BB3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_NoncontrollingInterestDecreaseFromDeconsolidationTaxBenefit_EB4399DDB3F176DCB96C030ECBD90BB3" xlink:to="lab_duk_NoncontrollingInterestDecreaseFromDeconsolidationTaxBenefit_EB4399DDB3F176DCB96C030ECBD90BB3" xlink:type="arc"/>
<link:label id="lab_us-gaap_GainLossOnDispositionOfAssets1_ED8226FF2AD9E22C3D8E030B300B5720_negatedLabel_en-US" xlink:label="lab_us-gaap_GainLossOnDispositionOfAssets1_ED8226FF2AD9E22C3D8E030B300B5720" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Pretax (gain) loss on disposal </link:label>
<link:label id="lab_us-gaap_GainLossOnDispositionOfAssets1_ED8226FF2AD9E22C3D8E030B300B5720_label_en-US" xlink:label="lab_us-gaap_GainLossOnDispositionOfAssets1_ED8226FF2AD9E22C3D8E030B300B5720" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Gain (Loss) on Disposition of Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets1" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_ED8226FF2AD9E22C3D8E030B300B5720" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnDispositionOfAssets1_ED8226FF2AD9E22C3D8E030B300B5720" xlink:to="lab_us-gaap_GainLossOnDispositionOfAssets1_ED8226FF2AD9E22C3D8E030B300B5720" xlink:type="arc"/>
<link:label id="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_7E6F8C4B8D1898672901030B300B32C8_terseLabel_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_7E6F8C4B8D1898672901030B300B32C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Ownership percentage </link:label>
<link:label id="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_7E6F8C4B8D1898672901030B300B32C8_label_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_7E6F8C4B8D1898672901030B300B32C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Method Investment, Ownership Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_7E6F8C4B8D1898672901030B300B32C8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_7E6F8C4B8D1898672901030B300B32C8" xlink:to="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_7E6F8C4B8D1898672901030B300B32C8" xlink:type="arc"/>
<link:label id="lab_us-gaap_NumberOfReportableSegments_24AF814EE2A47DB5797A030B300B365C_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfReportableSegments_24AF814EE2A47DB5797A030B300B365C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Number of reportable segments </link:label>
<link:label id="lab_us-gaap_NumberOfReportableSegments_24AF814EE2A47DB5797A030B300B365C_label_en-US" xlink:label="lab_us-gaap_NumberOfReportableSegments_24AF814EE2A47DB5797A030B300B365C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Number of Reportable Segments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_24AF814EE2A47DB5797A030B300B365C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NumberOfReportableSegments_24AF814EE2A47DB5797A030B300B365C" xlink:to="lab_us-gaap_NumberOfReportableSegments_24AF814EE2A47DB5797A030B300B365C" xlink:type="arc"/>
<link:label id="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_7E5C98B425EF9A5D7C9BB88F9893D341_terseLabel_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_658CCEDD242B513789F5F78A8A8D8752" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Organization and Basis of Presentation </link:label>
<link:label id="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_7E5C98B425EF9A5D7C9BB88F9893D341_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_658CCEDD242B513789F5F78A8A8D8752" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_658CCEDD242B513789F5F78A8A8D8752" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_658CCEDD242B513789F5F78A8A8D8752" xlink:to="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_658CCEDD242B513789F5F78A8A8D8752" xlink:type="arc"/>
<link:label id="lab_us-gaap_CompensationAndRetirementDisclosureAbstract_88E08FE7C7EA36FF4AA70333D81905C1_label_en-US" xlink:label="lab_us-gaap_CompensationAndRetirementDisclosureAbstract_88E08FE7C7EA36FF4AA70333D81905C1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retirement Benefits [Abstract] </link:label>
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<link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_8EC78160FD1A28387E523705E16AE40F_totalLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax_8EC78160FD1A28387E523705E16AE40F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Comprehensive Income Attributable to Duke Energy Corporation </link:label>
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<link:label id="lab_us-gaap_FairValueDisclosuresAbstract_B957A1024664C48896F9B88F98B5732E_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract_A49767782D275181A2F1772B9BF5FE8E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures [Abstract] </link:label>
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<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths_CB68B340E5F44255E2BB3C6AAFFEF543_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths_CB68B340E5F44255E2BB3C6AAFFEF543" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2020 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths_CB68B340E5F44255E2BB3C6AAFFEF543_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths_CB68B340E5F44255E2BB3C6AAFFEF543" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Payments, Due Next Rolling Twelve Months </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths_CB68B340E5F44255E2BB3C6AAFFEF543" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths_CB68B340E5F44255E2BB3C6AAFFEF543" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths_CB68B340E5F44255E2BB3C6AAFFEF543" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo_B4EE22EC51FB0EBADA793C6AAFFEE439_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo_B4EE22EC51FB0EBADA793C6AAFFEE439" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2021 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo_B4EE22EC51FB0EBADA793C6AAFFEE439_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo_B4EE22EC51FB0EBADA793C6AAFFEE439" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Two </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo_B4EE22EC51FB0EBADA793C6AAFFEE439" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo_B4EE22EC51FB0EBADA793C6AAFFEE439" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo_B4EE22EC51FB0EBADA793C6AAFFEE439" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree_0BD7DD25256DA77AD9A33C6AAFFEB4C0_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree_0BD7DD25256DA77AD9A33C6AAFFEB4C0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2022 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree_0BD7DD25256DA77AD9A33C6AAFFEB4C0_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree_0BD7DD25256DA77AD9A33C6AAFFEB4C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Three </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree_0BD7DD25256DA77AD9A33C6AAFFEB4C0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree_0BD7DD25256DA77AD9A33C6AAFFEB4C0" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree_0BD7DD25256DA77AD9A33C6AAFFEB4C0" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour_04565B9E911162483D113C6AAFFE957C_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour_04565B9E911162483D113C6AAFFE957C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2023 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour_04565B9E911162483D113C6AAFFE957C_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour_04565B9E911162483D113C6AAFFE957C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Four </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour_04565B9E911162483D113C6AAFFE957C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour_04565B9E911162483D113C6AAFFE957C" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour_04565B9E911162483D113C6AAFFE957C" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive_6C15DE5374B61D7435923C6AAFFE1484_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive_6C15DE5374B61D7435923C6AAFFE1484" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2024 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive_6C15DE5374B61D7435923C6AAFFE1484_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive_6C15DE5374B61D7435923C6AAFFE1484" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Five </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive_6C15DE5374B61D7435923C6AAFFE1484" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive_6C15DE5374B61D7435923C6AAFFE1484" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive_6C15DE5374B61D7435923C6AAFFE1484" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive_619D252F3C88288382953C6AAFFE9382_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive_619D252F3C88288382953C6AAFFE9382" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Thereafter </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive_619D252F3C88288382953C6AAFFE9382_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive_619D252F3C88288382953C6AAFFE9382" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Payments, Due after Rolling Year Five </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive_619D252F3C88288382953C6AAFFE9382" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive_619D252F3C88288382953C6AAFFE9382" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive_619D252F3C88288382953C6AAFFE9382" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_D51D4F7887A1F6D09DAB3C6AAFFE5235_totalLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_D51D4F7887A1F6D09DAB3C6AAFFE5235" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total operating lease payments </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_D51D4F7887A1F6D09DAB3C6AAFFE5235_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_D51D4F7887A1F6D09DAB3C6AAFFE5235" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Payments, Due </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_D51D4F7887A1F6D09DAB3C6AAFFE5235" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_D51D4F7887A1F6D09DAB3C6AAFFE5235" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_D51D4F7887A1F6D09DAB3C6AAFFE5235" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_DB2D2A9F39A367DF38913C6AAFFE4A65_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_DB2D2A9F39A367DF38913C6AAFFE4A65" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Less: present value discount </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_DB2D2A9F39A367DF38913C6AAFFE4A65_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_DB2D2A9F39A367DF38913C6AAFFE4A65" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Undiscounted Excess Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_DB2D2A9F39A367DF38913C6AAFFE4A65" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_DB2D2A9F39A367DF38913C6AAFFE4A65" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_DB2D2A9F39A367DF38913C6AAFFE4A65" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseLiability_3332E36100D1D1B2D1223C6AAFFE9B4C_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiability_3332E36100D1D1B2D1223C6AAFFE9B4C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Total operating lease liabilities </link:label>
<link:label id="lab_us-gaap_OperatingLeaseLiability_3332E36100D1D1B2D1223C6AAFFE9B4C_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiability_3332E36100D1D1B2D1223C6AAFFE9B4C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaap_OperatingLeaseLiability_3332E36100D1D1B2D1223C6AAFFE9B4C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiability_3332E36100D1D1B2D1223C6AAFFE9B4C" xlink:to="lab_us-gaap_OperatingLeaseLiability_3332E36100D1D1B2D1223C6AAFFE9B4C" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_FD1DB0B02033CD1AFD073C6AAFFE4070_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_FD1DB0B02033CD1AFD073C6AAFFE4070" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity (Topic 840) </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_FD1DB0B02033CD1AFD073C6AAFFE4070_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_FD1DB0B02033CD1AFD073C6AAFFE4070" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_FD1DB0B02033CD1AFD073C6AAFFE4070" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_FD1DB0B02033CD1AFD073C6AAFFE4070" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_FD1DB0B02033CD1AFD073C6AAFFE4070" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_4559762CB1FD96539CFA3C6AAFFE2ED1_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_4559762CB1FD96539CFA3C6AAFFE2ED1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2019 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_4559762CB1FD96539CFA3C6AAFFE2ED1_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_4559762CB1FD96539CFA3C6AAFFE2ED1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Due, Next Twelve Months </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_4559762CB1FD96539CFA3C6AAFFE2ED1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_4559762CB1FD96539CFA3C6AAFFE2ED1" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_4559762CB1FD96539CFA3C6AAFFE2ED1" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_3FAF97B972B121BD6ADE3C6AAFFE95E7_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_3FAF97B972B121BD6ADE3C6AAFFE95E7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2020 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_3FAF97B972B121BD6ADE3C6AAFFE95E7_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_3FAF97B972B121BD6ADE3C6AAFFE95E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Two Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_3FAF97B972B121BD6ADE3C6AAFFE95E7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_3FAF97B972B121BD6ADE3C6AAFFE95E7" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_3FAF97B972B121BD6ADE3C6AAFFE95E7" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_FD16DF6A3755D1C0D66D3C6AAFFE0041_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_FD16DF6A3755D1C0D66D3C6AAFFE0041" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2021 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_FD16DF6A3755D1C0D66D3C6AAFFE0041_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_FD16DF6A3755D1C0D66D3C6AAFFE0041" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Three Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_FD16DF6A3755D1C0D66D3C6AAFFE0041" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_FD16DF6A3755D1C0D66D3C6AAFFE0041" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_FD16DF6A3755D1C0D66D3C6AAFFE0041" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_6B4B7D531EEC1E55C8603C6AAFFEF648_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_6B4B7D531EEC1E55C8603C6AAFFEF648" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2022 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_6B4B7D531EEC1E55C8603C6AAFFEF648_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_6B4B7D531EEC1E55C8603C6AAFFEF648" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Four Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_6B4B7D531EEC1E55C8603C6AAFFEF648" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_D20D1D39E4D06D3B843CB88F98A35F68_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_94A50EB7A4C25800A5CE8F9F7DECD6CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value </link:label>
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<link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_4A5DFE3661608F79C0DFB88F98A32D45_totalLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_1299AA89AE835F5595A31D01A075C06A" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total </link:label>
<link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_4A5DFE3661608F79C0DFB88F98A32D45_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_1299AA89AE835F5595A31D01A075C06A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Securities, Available-for-sale </link:label>
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<link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_22A0398B5AD0B53CFE2B374BDEFCB4B1_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_22A0398B5AD0B53CFE2B374BDEFCB4B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Financial Position [Abstract] </link:label>
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<link:label id="lab_duk_VariableInterestEntityMember_FCA6F0B5F7D09A8EC969374BDF0C4ABA_terseLabel_en-US" xlink:label="lab_duk_VariableInterestEntityMember_FCA6F0B5F7D09A8EC969374BDF0C4ABA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity [Member] </link:label>
<link:label id="lab_duk_VariableInterestEntityMember_FCA6F0B5F7D09A8EC969374BDF0C4ABA_label_en-US" xlink:label="lab_duk_VariableInterestEntityMember_FCA6F0B5F7D09A8EC969374BDF0C4ABA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity [Member] </link:label>
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<link:loc xlink:href="duk-20190930.xsd#duk_VariableInterestEntityMember" xlink:label="loc_duk_VariableInterestEntityMember_FCA6F0B5F7D09A8EC969374BDF0C4ABA" xlink:type="locator"/>
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<link:label id="lab_duk_AllowanceforDoubtfulAccountsandOtherReceivablesCurrent_DC94FF872F0128672B91374BDF0CCF44_terseLabel_en-US" xlink:label="lab_duk_AllowanceforDoubtfulAccountsandOtherReceivablesCurrent_DC94FF872F0128672B91374BDF0CCF44" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Allowance for doubtful accounts - receivables </link:label>
<link:label id="lab_duk_AllowanceforDoubtfulAccountsandOtherReceivablesCurrent_DC94FF872F0128672B91374BDF0CCF44_label_en-US" xlink:label="lab_duk_AllowanceforDoubtfulAccountsandOtherReceivablesCurrent_DC94FF872F0128672B91374BDF0CCF44" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Allowance for Doubtful Accounts and Other Receivables, Current </link:label>
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<link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_52F3E48C6B4362D964D3374BDF0CFCA3_terseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_52F3E48C6B4362D964D3374BDF0CFCA3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Allowance for doubtful accounts - receivables of VIEs </link:label>
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<link:label id="lab_us-gaap_CommonStockSharesAuthorized_18D0DD2C93E457F5F157374BDF0CA562_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized_18D0DD2C93E457F5F157374BDF0CA562" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Shares Authorized </link:label>
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<link:label id="lab_us-gaap_PreferredStockSharesAuthorized_0B365DFC86F6B17F9A26374BDF0C33FE_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesAuthorized_0B365DFC86F6B17F9A26374BDF0C33FE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Shares Authorized </link:label>
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<link:label id="lab_us-gaap_Goodwill_1FBE15F44D40996030C1B88F97A4467F_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill_B113623E64325B92B402DB2845E9B8E6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
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<link:label id="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_B2818A95710B103F96C4B88F97A4A2F4_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_06D3E83ED8525A218CA9A679B1C868D5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated impairment charges </link:label>
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<link:label id="lab_us-gaap_DebtInstrumentNameDomain_4B7849D2A649D22CD85F030B2F9E49AE_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain_4B7849D2A649D22CD85F030B2F9E49AE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Name [Domain] </link:label>
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<link:label id="lab_duk_FluorLetterOfCreditMember_2F4329606FA6AE1AB4BA030B2F9E029B_terseLabel_en-US" xlink:label="lab_duk_FluorLetterOfCreditMember_2F4329606FA6AE1AB4BA030B2F9E029B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fluor Letter Of Credit [Member] </link:label>
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<link:label id="lab_us-gaap_LiabilityForAsbestosAndEnvironmentalClaimsGross_D61026C6C3051662A7B2030B2FAE249B_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilityForAsbestosAndEnvironmentalClaimsGross_D61026C6C3051662A7B2030B2FAE249B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Asbestos-related injuries and damages reserves </link:label>
<link:label id="lab_us-gaap_LiabilityForAsbestosAndEnvironmentalClaimsGross_D61026C6C3051662A7B2030B2FAE249B_label_en-US" xlink:label="lab_us-gaap_LiabilityForAsbestosAndEnvironmentalClaimsGross_D61026C6C3051662A7B2030B2FAE249B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liability for Asbestos and Environmental Claims, Gross </link:label>
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<link:label id="lab_us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured_8A66DB413242A1311570030B2FAECD17_terseLabel_en-US" xlink:label="lab_us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured_8A66DB413242A1311570030B2FAECD17" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Reinsurance retention policy, excess retention, amount reinsured </link:label>
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<link:label id="lab_us-gaap_ProceedsFromLinesOfCredit_2DF7FAF00BD6DB24998B030B2FAE9F4F_label_en-US" xlink:label="lab_us-gaap_ProceedsFromLinesOfCredit_2DF7FAF00BD6DB24998B030B2FAE9F4F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Lines of Credit </link:label>
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<link:label id="lab_duk_DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember_87A4E265688A1E2BAAB1B88F988EB942_terseLabel_en-US" xlink:label="lab_duk_DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember_AA01C83776325EF0BF34C93A1072BB0D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Financial Transmission Rights [Member] </link:label>
<link:label id="lab_duk_DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember_87A4E265688A1E2BAAB1B88F988EB942_label_en-US" xlink:label="lab_duk_DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember_AA01C83776325EF0BF34C93A1072BB0D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative Financial Instruments Liabilities Financial Transmission Rights [Member] </link:label>
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<link:label id="lab_us-gaap_FairValueByLiabilityClassAxis_B175F8400757633ACDF0B88F988E1B5F_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByLiabilityClassAxis_EF400B9C695B54B5818A010D30131B55" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Liability Class [Axis] </link:label>
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<link:label id="lab_us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss_75D0733B95DBD2CD6562B88F96D64405_terseLabel_en-US" xlink:label="lab_us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss_81E297E7D0D95BF5A4710D9604F798BE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt securities, available-for-sale, realized loss </link:label>
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<link:label id="lab_us-gaap_DebtDisclosureTextBlock_B2A8B28FAE16FBA9EC3AB88F985FA181_terseLabel_en-US" xlink:label="lab_us-gaap_DebtDisclosureTextBlock_2F7913F61B1A5FB8A79156D92FD2625B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt And Credit Facilities </link:label>
<link:label id="lab_us-gaap_DebtDisclosureTextBlock_B2A8B28FAE16FBA9EC3AB88F985FA181_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureTextBlock_2F7913F61B1A5FB8A79156D92FD2625B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Disclosure [Text Block] </link:label>
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<link:label id="lab_duk_DebtSecuritiesAvailableforsaleandEquitySecuritiesFVNIUnrealizedGain_BC8D262F913C3B34A041B88F98C87B25_terseLabel_en-US" xlink:label="lab_duk_DebtSecuritiesAvailableforsaleandEquitySecuritiesFVNIUnrealizedGain_4A47A92832AD57A086A02CC2E2D8F65E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Securities, Available-for-sale, and Equity Securities, FV-NI, Unrealized Gain </link:label>
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<link:label id="lab_duk_DebtSecuritiesAvailableforsaleandEquitySecuritiesFVNI_CED16F4A90D9F65DAFD6B88F98C8F915_documentation_en-US" xlink:label="lab_duk_DebtSecuritiesAvailableforsaleandEquitySecuritiesFVNI_E7A88AECB708562B8BD3E4D2EFA2C2C6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DebtSecuritiesAvailableforsaleandEquitySecuritiesFVNI" xlink:label="loc_duk_DebtSecuritiesAvailableforsaleandEquitySecuritiesFVNI_E7A88AECB708562B8BD3E4D2EFA2C2C6" xlink:type="locator"/>
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<link:label id="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedGain_E16E1954DB706FC587AFB88F98C93139_terseLabel_en-US" xlink:label="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedGain_C726C9376C9158499169004AFFF788EA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity Securities, FV-NI, Accumulated Unrealized Gain </link:label>
<link:label id="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedGain_E16E1954DB706FC587AFB88F98C93139_label_en-US" xlink:label="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedGain_C726C9376C9158499169004AFFF788EA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Securities, FV-NI, Accumulated Unrealized Gain </link:label>
<link:label id="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedGain_E16E1954DB706FC587AFB88F98C93139_documentation_en-US" xlink:label="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedGain_C726C9376C9158499169004AFFF788EA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount of accumulated unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Substantially all of the associated unrealized gains and losses on these investments are deferred as a regulatory asset or liability. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_EquitySecuritiesFVNIAccumulatedUnrealizedGain" xlink:label="loc_duk_EquitySecuritiesFVNIAccumulatedUnrealizedGain_C726C9376C9158499169004AFFF788EA" xlink:type="locator"/>
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<link:label id="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedLoss_CFF2A0683CC17F609F41B88F98C9BBAF_terseLabel_en-US" xlink:label="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedLoss_67E4E9F297D758978A05FB0B96AE7030" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity Securities, FV-NI, Accumulated Unrealized Loss </link:label>
<link:label id="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedLoss_CFF2A0683CC17F609F41B88F98C9BBAF_label_en-US" xlink:label="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedLoss_67E4E9F297D758978A05FB0B96AE7030" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Securities, FV-NI, Accumulated Unrealized Loss </link:label>
<link:label id="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedLoss_CFF2A0683CC17F609F41B88F98C9BBAF_documentation_en-US" xlink:label="lab_duk_EquitySecuritiesFVNIAccumulatedUnrealizedLoss_67E4E9F297D758978A05FB0B96AE7030" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount of accumulated unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Substantially all of the associated unrealized gains and losses on these investments are deferred as a regulatory asset or liability. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_EquitySecuritiesFVNIAccumulatedUnrealizedLoss" xlink:label="loc_duk_EquitySecuritiesFVNIAccumulatedUnrealizedLoss_67E4E9F297D758978A05FB0B96AE7030" xlink:type="locator"/>
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<link:label id="lab_duk_CashAndCashEquivalentInvestments_6AA5F4CF33FEB92773D6B88F98C9140C_terseLabel_en-US" xlink:label="lab_duk_CashAndCashEquivalentInvestments_2325221508CB59EAB681028776A819AB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents </link:label>
<link:label id="lab_duk_CashAndCashEquivalentInvestments_6AA5F4CF33FEB92773D6B88F98C9140C_label_en-US" xlink:label="lab_duk_CashAndCashEquivalentInvestments_2325221508CB59EAB681028776A819AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash And Cash Equivalent Investments </link:label>
<link:label id="lab_duk_CashAndCashEquivalentInvestments_6AA5F4CF33FEB92773D6B88F98C9140C_documentation_en-US" xlink:label="lab_duk_CashAndCashEquivalentInvestments_2325221508CB59EAB681028776A819AB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount of cash and cash equivalents held in a trust fund or other type of investment. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_CashAndCashEquivalentInvestments" xlink:label="loc_duk_CashAndCashEquivalentInvestments_2325221508CB59EAB681028776A819AB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_EquitySecuritiesFvNi_AB689B98ACC97DDFE3C3B88F98C91984_terseLabel_en-US" xlink:label="lab_us-gaap_EquitySecuritiesFvNi_02FDF46E3F715E9C991951A95ACFBDF6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity securities, FV-NI </link:label>
<link:label id="lab_us-gaap_EquitySecuritiesFvNi_AB689B98ACC97DDFE3C3B88F98C91984_label_en-US" xlink:label="lab_us-gaap_EquitySecuritiesFvNi_02FDF46E3F715E9C991951A95ACFBDF6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Securities, FV-NI </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquitySecuritiesFvNi" xlink:label="loc_us-gaap_EquitySecuritiesFvNi_02FDF46E3F715E9C991951A95ACFBDF6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_MinorityInterestTable_86DD512589F5B5899602412850E2DEAD_terseLabel_en-US" xlink:label="lab_us-gaap_MinorityInterestTable_86DD512589F5B5899602412850E2DEAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest [Table] </link:label>
<link:label id="lab_us-gaap_MinorityInterestTable_86DD512589F5B5899602412850E2DEAD_label_en-US" xlink:label="lab_us-gaap_MinorityInterestTable_86DD512589F5B5899602412850E2DEAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MinorityInterestTable" xlink:label="loc_us-gaap_MinorityInterestTable_86DD512589F5B5899602412850E2DEAD" xlink:type="locator"/>
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<link:label id="lab_duk_NorthRosamondSolarFarmMember_419D7BBA576159986E6E412850E41EAD_terseLabel_en-US" xlink:label="lab_duk_NorthRosamondSolarFarmMember_419D7BBA576159986E6E412850E41EAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> North Rosamond Solar Farm [Member] </link:label>
<link:label id="lab_duk_NorthRosamondSolarFarmMember_419D7BBA576159986E6E412850E41EAD_label_en-US" xlink:label="lab_duk_NorthRosamondSolarFarmMember_419D7BBA576159986E6E412850E41EAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> North Rosamond Solar Farm [Member] </link:label>
<link:label id="lab_duk_NorthRosamondSolarFarmMember_419D7BBA576159986E6E412850E41EAD_documentation_en-US" xlink:label="lab_duk_NorthRosamondSolarFarmMember_419D7BBA576159986E6E412850E41EAD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> North Rosamond Solar Farm [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_NorthRosamondSolarFarmMember" xlink:label="loc_duk_NorthRosamondSolarFarmMember_419D7BBA576159986E6E412850E41EAD" xlink:type="locator"/>
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<link:label id="lab_us-gaap_MinorityInterestLineItems_B0002125071F39209F83412850E4C042_terseLabel_en-US" xlink:label="lab_us-gaap_MinorityInterestLineItems_B0002125071F39209F83412850E4C042" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest [Line Items] </link:label>
<link:label id="lab_us-gaap_MinorityInterestLineItems_B0002125071F39209F83412850E4C042_label_en-US" xlink:label="lab_us-gaap_MinorityInterestLineItems_B0002125071F39209F83412850E4C042" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MinorityInterestLineItems" xlink:label="loc_us-gaap_MinorityInterestLineItems_B0002125071F39209F83412850E4C042" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MinorityInterestLineItems_B0002125071F39209F83412850E4C042" xlink:to="lab_us-gaap_MinorityInterestLineItems_B0002125071F39209F83412850E4C042" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_3D0120ACF8EEC7794A56412850E44A4A_netLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_3D0120ACF8EEC7794A56412850E44A4A" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US"> Allocation of losses to noncontrolling interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_3D0120ACF8EEC7794A56412850E44A4A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncomeTaxesReceivable_1ED3F451654595AE564C412850E5DE03_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxesReceivable_1ED3F451654595AE564C412850E5DE03" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income taxes receivable </link:label>
<link:label id="lab_us-gaap_IncomeTaxesReceivable_1ED3F451654595AE564C412850E5DE03_label_en-US" xlink:label="lab_us-gaap_IncomeTaxesReceivable_1ED3F451654595AE564C412850E5DE03" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Taxes Receivable, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxesReceivable" xlink:label="loc_us-gaap_IncomeTaxesReceivable_1ED3F451654595AE564C412850E5DE03" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PrepaidExpenseCurrentAndNoncurrent_A3F8932E32CDB578A8A9412850E5450D_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrentAndNoncurrent_A3F8932E32CDB578A8A9412850E5450D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Prepaid assets </link:label>
<link:label id="lab_us-gaap_PrepaidExpenseCurrentAndNoncurrent_A3F8932E32CDB578A8A9412850E5450D_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrentAndNoncurrent_A3F8932E32CDB578A8A9412850E5450D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Prepaid Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidExpenseCurrentAndNoncurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrentAndNoncurrent_A3F8932E32CDB578A8A9412850E5450D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_TaxCreditCarryforwardTable_EF6260596818DFC796AA030B2B842719_terseLabel_en-US" xlink:label="lab_us-gaap_TaxCreditCarryforwardTable_EF6260596818DFC796AA030B2B842719" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tax Credit Carryforward [Table] </link:label>
<link:label id="lab_us-gaap_TaxCreditCarryforwardTable_EF6260596818DFC796AA030B2B842719_label_en-US" xlink:label="lab_us-gaap_TaxCreditCarryforwardTable_EF6260596818DFC796AA030B2B842719" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tax Credit Carryforward [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TaxCreditCarryforwardTable" xlink:label="loc_us-gaap_TaxCreditCarryforwardTable_EF6260596818DFC796AA030B2B842719" xlink:type="locator"/>
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<link:label id="lab_us-gaap_TaxCreditCarryforwardAxis_045D62E61DC314D19F02030B2B84C136_terseLabel_en-US" xlink:label="lab_us-gaap_TaxCreditCarryforwardAxis_045D62E61DC314D19F02030B2B84C136" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tax Credit Carryforward [Axis] </link:label>
<link:label id="lab_us-gaap_TaxCreditCarryforwardAxis_045D62E61DC314D19F02030B2B84C136_label_en-US" xlink:label="lab_us-gaap_TaxCreditCarryforwardAxis_045D62E61DC314D19F02030B2B84C136" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tax Credit Carryforward [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TaxCreditCarryforwardAxis" xlink:label="loc_us-gaap_TaxCreditCarryforwardAxis_045D62E61DC314D19F02030B2B84C136" xlink:type="locator"/>
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<link:label id="lab_us-gaap_TaxCreditCarryforwardNameDomain_41F4F06C2C34E92A7B62030B2B853845_terseLabel_en-US" xlink:label="lab_us-gaap_TaxCreditCarryforwardNameDomain_41F4F06C2C34E92A7B62030B2B853845" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tax Credit Carryforward, Name [Domain] </link:label>
<link:label id="lab_us-gaap_TaxCreditCarryforwardNameDomain_41F4F06C2C34E92A7B62030B2B853845_label_en-US" xlink:label="lab_us-gaap_TaxCreditCarryforwardNameDomain_41F4F06C2C34E92A7B62030B2B853845" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tax Credit Carryforward, Name [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TaxCreditCarryforwardNameDomain" xlink:label="loc_us-gaap_TaxCreditCarryforwardNameDomain_41F4F06C2C34E92A7B62030B2B853845" xlink:type="locator"/>
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<link:label id="lab_duk_AMTCreditCarryforwardMember_586C9CAE6F354A350860030B2B85FF61_terseLabel_en-US" xlink:label="lab_duk_AMTCreditCarryforwardMember_586C9CAE6F354A350860030B2B85FF61" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> AMT Credit Carryforward [Member] </link:label>
<link:label id="lab_duk_AMTCreditCarryforwardMember_586C9CAE6F354A350860030B2B85FF61_label_en-US" xlink:label="lab_duk_AMTCreditCarryforwardMember_586C9CAE6F354A350860030B2B85FF61" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> AMT Credit Carryforward [Member] </link:label>
<link:label id="lab_duk_AMTCreditCarryforwardMember_586C9CAE6F354A350860030B2B85FF61_documentation_en-US" xlink:label="lab_duk_AMTCreditCarryforwardMember_586C9CAE6F354A350860030B2B85FF61" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> AMT Credit Carryforward [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_AMTCreditCarryforwardMember" xlink:label="loc_duk_AMTCreditCarryforwardMember_586C9CAE6F354A350860030B2B85FF61" xlink:type="locator"/>
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<link:label id="lab_us-gaap_TaxCreditCarryforwardLineItems_AB1D6FE21970BC2D3B57030B2B85D788_terseLabel_en-US" xlink:label="lab_us-gaap_TaxCreditCarryforwardLineItems_AB1D6FE21970BC2D3B57030B2B85D788" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tax Credit Carryforward [Line Items] </link:label>
<link:label id="lab_us-gaap_TaxCreditCarryforwardLineItems_AB1D6FE21970BC2D3B57030B2B85D788_label_en-US" xlink:label="lab_us-gaap_TaxCreditCarryforwardLineItems_AB1D6FE21970BC2D3B57030B2B85D788" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tax Credit Carryforward [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TaxCreditCarryforwardLineItems" xlink:label="loc_us-gaap_TaxCreditCarryforwardLineItems_AB1D6FE21970BC2D3B57030B2B85D788" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromIncomeTaxRefunds_861586FA52BB0EA39E7903363E577C89_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIncomeTaxRefunds_861586FA52BB0EA39E7903363E577C89" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tax refund </link:label>
<link:label id="lab_us-gaap_ProceedsFromIncomeTaxRefunds_861586FA52BB0EA39E7903363E577C89_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIncomeTaxRefunds_861586FA52BB0EA39E7903363E577C89" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Income Tax Refunds </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromIncomeTaxRefunds" xlink:label="loc_us-gaap_ProceedsFromIncomeTaxRefunds_861586FA52BB0EA39E7903363E577C89" xlink:type="locator"/>
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<link:label id="lab_duk_OtherViesMember_712D9E0B6A98558CE5B24A6BB29B19A7_terseLabel_en-US" xlink:label="lab_duk_OtherViesMember_712D9E0B6A98558CE5B24A6BB29B19A7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other VIEs [Member] </link:label>
<link:label id="lab_duk_OtherViesMember_712D9E0B6A98558CE5B24A6BB29B19A7_label_en-US" xlink:label="lab_duk_OtherViesMember_712D9E0B6A98558CE5B24A6BB29B19A7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Vies [Member] </link:label>
<link:label id="lab_duk_OtherViesMember_712D9E0B6A98558CE5B24A6BB29B19A7_documentation_en-US" xlink:label="lab_duk_OtherViesMember_712D9E0B6A98558CE5B24A6BB29B19A7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Other VIEs </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_OtherViesMember" xlink:label="loc_duk_OtherViesMember_712D9E0B6A98558CE5B24A6BB29B19A7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_OtherViesMember_712D9E0B6A98558CE5B24A6BB29B19A7" xlink:to="lab_duk_OtherViesMember_712D9E0B6A98558CE5B24A6BB29B19A7" xlink:type="arc"/>
<link:label id="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesAbstract_227C52747DD5A5D6794B4A6BB29F584F_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesAbstract_227C52747DD5A5D6794B4A6BB29F584F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract] </link:label>
<link:label id="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesAbstract_227C52747DD5A5D6794B4A6BB29F584F_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesAbstract_227C52747DD5A5D6794B4A6BB29F584F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesAbstract" xlink:label="loc_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesAbstract_227C52747DD5A5D6794B4A6BB29F584F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccountsReceivableFromSecuritization_3669272C141685027FDC4A6BB29F9F82_verboseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableFromSecuritization_3669272C141685027FDC4A6BB29F9F82" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Receivables of VIEs </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableFromSecuritization" xlink:label="loc_us-gaap_AccountsReceivableFromSecuritization_3669272C141685027FDC4A6BB29F9F82" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsReceivableFromSecuritization_3669272C141685027FDC4A6BB29F9F82" xlink:to="lab_us-gaap_AccountsReceivableFromSecuritization_3669272C141685027FDC4A6BB29F9F82" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_730F12ED3294D43863254A6BB29F7836_verboseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_730F12ED3294D43863254A6BB29F7836" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Property, plant and equipment, cost </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_730F12ED3294D43863254A6BB29F7836_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_730F12ED3294D43863254A6BB29F7836" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Property, Plant and Equipment, Plant in Service </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_730F12ED3294D43863254A6BB29F7836" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_DAA1A1438980BE7291574A6BB29F04BA_negatedLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_DAA1A1438980BE7291574A6BB29F04BA" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Accumulated depreciation and amortization </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_DAA1A1438980BE7291574A6BB29F04BA_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_DAA1A1438980BE7291574A6BB29F04BA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Property, Plant and Equipment, Accumulated Depreciation </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_DAA1A1438980BE7291574A6BB29F04BA" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherAssetsNoncurrent_08CC63F9B516307BBD944A6BB2A3E458_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_08CC63F9B516307BBD944A6BB2A3E458" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other noncurrent assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_08CC63F9B516307BBD944A6BB2A3E458" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherLiabilitiesCurrent_E69092F4EF51521016714A6BB2A3EFD8_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent_E69092F4EF51521016714A6BB2A3EFD8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current Liabilities: Other </link:label>
<link:label id="lab_us-gaap_OtherLiabilitiesCurrent_E69092F4EF51521016714A6BB2A3EFD8_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent_E69092F4EF51521016714A6BB2A3EFD8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_E69092F4EF51521016714A6BB2A3EFD8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_E69092F4EF51521016714A6BB2A3EFD8" xlink:to="lab_us-gaap_OtherLiabilitiesCurrent_E69092F4EF51521016714A6BB2A3EFD8" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetRetirementObligationsNoncurrent_310B7FF658E4092CE8294A6BB2A473A7_netLabel_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationsNoncurrent_310B7FF658E4092CE8294A6BB2A473A7" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US"> Other Noncurrent Liabilities: Asset retirement obligations </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetRetirementObligationsNoncurrent" xlink:label="loc_us-gaap_AssetRetirementObligationsNoncurrent_310B7FF658E4092CE8294A6BB2A473A7" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DeferredCreditsAndOtherLiabilities_9157BB03DD4DCB7FFA2F4A6BB2A4520C_netLabel_en-US" xlink:label="lab_us-gaap_DeferredCreditsAndOtherLiabilities_9157BB03DD4DCB7FFA2F4A6BB2A4520C" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US"> Other Noncurrent Liabilities: Other </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredCreditsAndOtherLiabilities" xlink:label="loc_us-gaap_DeferredCreditsAndOtherLiabilities_9157BB03DD4DCB7FFA2F4A6BB2A4520C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RetirementPlanNameAxis_82D481A672D97235D632030B2BAB2911_terseLabel_en-US" xlink:label="lab_us-gaap_RetirementPlanNameAxis_82D481A672D97235D632030B2BAB2911" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Retirement Plan Name [Axis] </link:label>
<link:label id="lab_us-gaap_RetirementPlanNameAxis_82D481A672D97235D632030B2BAB2911_label_en-US" xlink:label="lab_us-gaap_RetirementPlanNameAxis_82D481A672D97235D632030B2BAB2911" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retirement Plan Name [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanNameAxis" xlink:label="loc_us-gaap_RetirementPlanNameAxis_82D481A672D97235D632030B2BAB2911" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RetirementPlanNameDomain_660CA6ACD99E1232EBBD030B2BAB085A_terseLabel_en-US" xlink:label="lab_us-gaap_RetirementPlanNameDomain_660CA6ACD99E1232EBBD030B2BAB085A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Retirement Plan Name [Domain] </link:label>
<link:label id="lab_us-gaap_RetirementPlanNameDomain_660CA6ACD99E1232EBBD030B2BAB085A_label_en-US" xlink:label="lab_us-gaap_RetirementPlanNameDomain_660CA6ACD99E1232EBBD030B2BAB085A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retirement Plan Name [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanNameDomain" xlink:label="loc_us-gaap_RetirementPlanNameDomain_660CA6ACD99E1232EBBD030B2BAB085A" xlink:type="locator"/>
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<link:label id="lab_duk_DukeEnergyRetirementCashBalancePlanMember_0C34A95167B7416FCE3F030B2BAB50C8_terseLabel_en-US" xlink:label="lab_duk_DukeEnergyRetirementCashBalancePlanMember_0C34A95167B7416FCE3F030B2BAB50C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Duke Energy RCBP [Member] </link:label>
<link:label id="lab_duk_DukeEnergyRetirementCashBalancePlanMember_0C34A95167B7416FCE3F030B2BAB50C8_label_en-US" xlink:label="lab_duk_DukeEnergyRetirementCashBalancePlanMember_0C34A95167B7416FCE3F030B2BAB50C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Duke Energy Retirement Cash Balance Plan [Member] </link:label>
<link:label id="lab_duk_DukeEnergyRetirementCashBalancePlanMember_0C34A95167B7416FCE3F030B2BAB50C8_documentation_en-US" xlink:label="lab_duk_DukeEnergyRetirementCashBalancePlanMember_0C34A95167B7416FCE3F030B2BAB50C8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Duke Energy Retirement Cash Balance Plan [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DukeEnergyRetirementCashBalancePlanMember" xlink:label="loc_duk_DukeEnergyRetirementCashBalancePlanMember_0C34A95167B7416FCE3F030B2BAB50C8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate_EE5C201F69CAA644D91B030B2BAC5E1A_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate_EE5C201F69CAA644D91B030B2BAC5E1A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Discount rate </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate_EE5C201F69CAA644D91B030B2BAC5E1A_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate_EE5C201F69CAA644D91B030B2BAC5E1A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate" xlink:label="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate_EE5C201F69CAA644D91B030B2BAC5E1A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate_E078BE5592456FB7B70F030B2BAC5F34_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate_E078BE5592456FB7B70F030B2BAC5F34" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash balance interest crediting rate </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate_E078BE5592456FB7B70F030B2BAC5F34_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate_E078BE5592456FB7B70F030B2BAC5F34" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted-Average Interest Crediting Rate </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate" xlink:label="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate_E078BE5592456FB7B70F030B2BAC5F34" xlink:type="locator"/>
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<link:label id="lab_duk_DefinedBenefitPlanRemeasurementGainRecognizedInStatementOfFinancialPosition_268E391E6EE795D69DB7030B2BACE2E0_terseLabel_en-US" xlink:label="lab_duk_DefinedBenefitPlanRemeasurementGainRecognizedInStatementOfFinancialPosition_268E391E6EE795D69DB7030B2BACE2E0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Remeasurement gain (loss) recognized </link:label>
<link:label id="lab_duk_DefinedBenefitPlanRemeasurementGainRecognizedInStatementOfFinancialPosition_268E391E6EE795D69DB7030B2BACE2E0_label_en-US" xlink:label="lab_duk_DefinedBenefitPlanRemeasurementGainRecognizedInStatementOfFinancialPosition_268E391E6EE795D69DB7030B2BACE2E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Remeasurement Gain Recognized In Statement Of Financial Position </link:label>
<link:label id="lab_duk_DefinedBenefitPlanRemeasurementGainRecognizedInStatementOfFinancialPosition_268E391E6EE795D69DB7030B2BACE2E0_documentation_en-US" xlink:label="lab_duk_DefinedBenefitPlanRemeasurementGainRecognizedInStatementOfFinancialPosition_268E391E6EE795D69DB7030B2BACE2E0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Remeasurement Gain (Loss) Recognized In Statement Of Financial Position </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DefinedBenefitPlanRemeasurementGainRecognizedInStatementOfFinancialPosition" xlink:label="loc_duk_DefinedBenefitPlanRemeasurementGainRecognizedInStatementOfFinancialPosition_268E391E6EE795D69DB7030B2BACE2E0" xlink:type="locator"/>
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<link:label id="lab_duk_DefinedBenefitPlanPlanAssetsIncreaseDecreaseForRemeasurementDueToSettlement_DFE156C8577FCEF63877030B2BAD8404_terseLabel_en-US" xlink:label="lab_duk_DefinedBenefitPlanPlanAssetsIncreaseDecreaseForRemeasurementDueToSettlement_DFE156C8577FCEF63877030B2BAD8404" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (decrease) in plan assets </link:label>
<link:label id="lab_duk_DefinedBenefitPlanPlanAssetsIncreaseDecreaseForRemeasurementDueToSettlement_DFE156C8577FCEF63877030B2BAD8404_label_en-US" xlink:label="lab_duk_DefinedBenefitPlanPlanAssetsIncreaseDecreaseForRemeasurementDueToSettlement_DFE156C8577FCEF63877030B2BAD8404" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Plan Assets, Increase (Decrease) For Remeasurement Due To Settlement </link:label>
<link:label id="lab_duk_DefinedBenefitPlanPlanAssetsIncreaseDecreaseForRemeasurementDueToSettlement_DFE156C8577FCEF63877030B2BAD8404_documentation_en-US" xlink:label="lab_duk_DefinedBenefitPlanPlanAssetsIncreaseDecreaseForRemeasurementDueToSettlement_DFE156C8577FCEF63877030B2BAD8404" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Plan Assets, Increase (Decrease) For Remeasurement Due To Settlement </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DefinedBenefitPlanPlanAssetsIncreaseDecreaseForRemeasurementDueToSettlement" xlink:label="loc_duk_DefinedBenefitPlanPlanAssetsIncreaseDecreaseForRemeasurementDueToSettlement_DFE156C8577FCEF63877030B2BAD8404" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement_872F18C4965D947FB71E030B2BAD64B6_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement_872F18C4965D947FB71E030B2BAD64B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase in projected benefit obligation </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement_872F18C4965D947FB71E030B2BAD64B6_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement_872F18C4965D947FB71E030B2BAD64B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement" xlink:label="loc_us-gaap_DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement_872F18C4965D947FB71E030B2BAD64B6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement_872F18C4965D947FB71E030B2BAD64B6" xlink:to="lab_us-gaap_DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement_872F18C4965D947FB71E030B2BAD64B6" xlink:type="arc"/>
<link:label id="lab_duk_DefinedBenefitPlanSettlementCharge_8D1FE3D258EC45CF5B40030B2BAD6196_terseLabel_en-US" xlink:label="lab_duk_DefinedBenefitPlanSettlementCharge_8D1FE3D258EC45CF5B40030B2BAD6196" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Settlement charge </link:label>
<link:label id="lab_duk_DefinedBenefitPlanSettlementCharge_8D1FE3D258EC45CF5B40030B2BAD6196_label_en-US" xlink:label="lab_duk_DefinedBenefitPlanSettlementCharge_8D1FE3D258EC45CF5B40030B2BAD6196" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Settlement Charge </link:label>
<link:label id="lab_duk_DefinedBenefitPlanSettlementCharge_8D1FE3D258EC45CF5B40030B2BAD6196_documentation_en-US" xlink:label="lab_duk_DefinedBenefitPlanSettlementCharge_8D1FE3D258EC45CF5B40030B2BAD6196" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Settlement Charge </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_DefinedBenefitPlanSettlementCharge" xlink:label="loc_duk_DefinedBenefitPlanSettlementCharge_8D1FE3D258EC45CF5B40030B2BAD6196" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_DefinedBenefitPlanSettlementCharge_8D1FE3D258EC45CF5B40030B2BAD6196" xlink:to="lab_duk_DefinedBenefitPlanSettlementCharge_8D1FE3D258EC45CF5B40030B2BAD6196" xlink:type="arc"/>
<link:label id="lab_duk_PioneerTransmissionMember_024AC802C338FBB196E93C51243553D3_terseLabel_en-US" xlink:label="lab_duk_PioneerTransmissionMember_024AC802C338FBB196E93C51243553D3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Pioneer Transmission [Member] </link:label>
<link:label id="lab_duk_PioneerTransmissionMember_024AC802C338FBB196E93C51243553D3_label_en-US" xlink:label="lab_duk_PioneerTransmissionMember_024AC802C338FBB196E93C51243553D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Pioneer Transmission [Member] </link:label>
<link:label id="lab_duk_PioneerTransmissionMember_024AC802C338FBB196E93C51243553D3_documentation_en-US" xlink:label="lab_duk_PioneerTransmissionMember_024AC802C338FBB196E93C51243553D3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Pioneer Transmission, LLC </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PioneerTransmissionMember" xlink:label="loc_duk_PioneerTransmissionMember_024AC802C338FBB196E93C51243553D3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PioneerTransmissionMember_024AC802C338FBB196E93C51243553D3" xlink:to="lab_duk_PioneerTransmissionMember_024AC802C338FBB196E93C51243553D3" xlink:type="arc"/>
<link:label id="lab_duk_OVECMember_F71546F4A26B09BF9F603C51243541A0_terseLabel_en-US" xlink:label="lab_duk_OVECMember_F71546F4A26B09BF9F603C51243541A0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> OVEC [Member] </link:label>
<link:label id="lab_duk_OVECMember_F71546F4A26B09BF9F603C51243541A0_label_en-US" xlink:label="lab_duk_OVECMember_F71546F4A26B09BF9F603C51243541A0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> OVEC [Member] </link:label>
<link:label id="lab_duk_OVECMember_F71546F4A26B09BF9F603C51243541A0_documentation_en-US" xlink:label="lab_duk_OVECMember_F71546F4A26B09BF9F603C51243541A0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> OVEC [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_OVECMember" xlink:label="loc_duk_OVECMember_F71546F4A26B09BF9F603C51243541A0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_OVECMember_F71546F4A26B09BF9F603C51243541A0" xlink:to="lab_duk_OVECMember_F71546F4A26B09BF9F603C51243541A0" xlink:type="arc"/>
<link:label id="lab_us-gaap_VariableInterestEntityFinancialOrOtherSupportAmount_F885CC07378859193E753C512436C2C6_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityFinancialOrOtherSupportAmount_F885CC07378859193E753C512436C2C6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable interest entity, financial or other support, amount </link:label>
<link:label id="lab_us-gaap_VariableInterestEntityFinancialOrOtherSupportAmount_F885CC07378859193E753C512436C2C6_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityFinancialOrOtherSupportAmount_F885CC07378859193E753C512436C2C6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity, Financial or Other Support, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableInterestEntityFinancialOrOtherSupportAmount" xlink:label="loc_us-gaap_VariableInterestEntityFinancialOrOtherSupportAmount_F885CC07378859193E753C512436C2C6" xlink:type="locator"/>
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<link:label id="lab_duk_Percentofproceedsreceivedascash_88C29BD539C9F2E4AA343C51243772F5_terseLabel_en-US" xlink:label="lab_duk_Percentofproceedsreceivedascash_88C29BD539C9F2E4AA343C51243772F5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Percent of proceeds received as cash </link:label>
<link:label id="lab_duk_Percentofproceedsreceivedascash_88C29BD539C9F2E4AA343C51243772F5_label_en-US" xlink:label="lab_duk_Percentofproceedsreceivedascash_88C29BD539C9F2E4AA343C51243772F5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Percent of proceeds received as cash </link:label>
<link:label id="lab_duk_Percentofproceedsreceivedascash_88C29BD539C9F2E4AA343C51243772F5_documentation_en-US" xlink:label="lab_duk_Percentofproceedsreceivedascash_88C29BD539C9F2E4AA343C51243772F5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Percent of proceeds from accounts receivable securitization received as cash. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_Percentofproceedsreceivedascash" xlink:label="loc_duk_Percentofproceedsreceivedascash_88C29BD539C9F2E4AA343C51243772F5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_Percentofproceedsreceivedascash_88C29BD539C9F2E4AA343C51243772F5" xlink:to="lab_duk_Percentofproceedsreceivedascash_88C29BD539C9F2E4AA343C51243772F5" xlink:type="arc"/>
<link:label id="lab_duk_Percentofproceedsreceivedassubordinatednote_2D392EA44213E681E00D3C5124371B62_terseLabel_en-US" xlink:label="lab_duk_Percentofproceedsreceivedassubordinatednote_2D392EA44213E681E00D3C5124371B62" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Percent of proceeds received as subordinated note </link:label>
<link:label id="lab_duk_Percentofproceedsreceivedassubordinatednote_2D392EA44213E681E00D3C5124371B62_label_en-US" xlink:label="lab_duk_Percentofproceedsreceivedassubordinatednote_2D392EA44213E681E00D3C5124371B62" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Percent of proceeds received as subordinated note </link:label>
<link:label id="lab_duk_Percentofproceedsreceivedassubordinatednote_2D392EA44213E681E00D3C5124371B62_documentation_en-US" xlink:label="lab_duk_Percentofproceedsreceivedassubordinatednote_2D392EA44213E681E00D3C5124371B62" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Percent of proceeds from accounts receivable securitization received as subordinated note. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_Percentofproceedsreceivedassubordinatednote" xlink:label="loc_duk_Percentofproceedsreceivedassubordinatednote_2D392EA44213E681E00D3C5124371B62" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_Percentofproceedsreceivedassubordinatednote_2D392EA44213E681E00D3C5124371B62" xlink:to="lab_duk_Percentofproceedsreceivedassubordinatednote_2D392EA44213E681E00D3C5124371B62" xlink:type="arc"/>
<link:label id="lab_duk_ReceivablesToMaintainMinimumEquityBalance_4EA3F226A95361D8E7B73C512437AF68_terseLabel_en-US" xlink:label="lab_duk_ReceivablesToMaintainMinimumEquityBalance_4EA3F226A95361D8E7B73C512437AF68" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Minimum equity balance required by Cinergy Receivables </link:label>
<link:label id="lab_duk_ReceivablesToMaintainMinimumEquityBalance_4EA3F226A95361D8E7B73C512437AF68_label_en-US" xlink:label="lab_duk_ReceivablesToMaintainMinimumEquityBalance_4EA3F226A95361D8E7B73C512437AF68" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Receivables To Maintain Minimum equity Balance </link:label>
<link:label id="lab_duk_ReceivablesToMaintainMinimumEquityBalance_4EA3F226A95361D8E7B73C512437AF68_documentation_en-US" xlink:label="lab_duk_ReceivablesToMaintainMinimumEquityBalance_4EA3F226A95361D8E7B73C512437AF68" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Minimum equity Balance required by Cinergy Receivables </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_ReceivablesToMaintainMinimumEquityBalance" xlink:label="loc_duk_ReceivablesToMaintainMinimumEquityBalance_4EA3F226A95361D8E7B73C512437AF68" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_ReceivablesToMaintainMinimumEquityBalance_4EA3F226A95361D8E7B73C512437AF68" xlink:to="lab_duk_ReceivablesToMaintainMinimumEquityBalance_4EA3F226A95361D8E7B73C512437AF68" xlink:type="arc"/>
<link:label id="lab_duk_GuaranteeObligationsMaximumExposurePercentage_B4D14C27EEA557E41EE83C5124379700_terseLabel_en-US" xlink:label="lab_duk_GuaranteeObligationsMaximumExposurePercentage_B4D14C27EEA557E41EE83C5124379700" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Percentage of potential amount of future payments associated with guarantees as percent of outstanding borrowings </link:label>
<link:label id="lab_duk_GuaranteeObligationsMaximumExposurePercentage_B4D14C27EEA557E41EE83C5124379700_label_en-US" xlink:label="lab_duk_GuaranteeObligationsMaximumExposurePercentage_B4D14C27EEA557E41EE83C5124379700" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Guarantee Obligations Maximum Exposure Percentage </link:label>
<link:label id="lab_duk_GuaranteeObligationsMaximumExposurePercentage_B4D14C27EEA557E41EE83C5124379700_documentation_en-US" xlink:label="lab_duk_GuaranteeObligationsMaximumExposurePercentage_B4D14C27EEA557E41EE83C5124379700" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Maximum potential percentage of future payments the guarantor could be required to make under the guarantee in relationship to the total borrowings by the joint venture on the credit facility. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_GuaranteeObligationsMaximumExposurePercentage" xlink:label="loc_duk_GuaranteeObligationsMaximumExposurePercentage_B4D14C27EEA557E41EE83C5124379700" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CreditFacilityAxis_0D9401E4F442372C937F495FD92E8BDD_label_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis_4D1ED5C0D89658D780A89DC315B342AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Credit Facility [Axis] </link:label>
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<link:label id="lab_us-gaap_CreditFacilityDomain_FAD715D45D6AC2F0C7A5495FD92E45E8_label_en-US" xlink:label="lab_us-gaap_CreditFacilityDomain_E2D489087548560AA1E4979BB8AE1A8A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Credit Facility [Domain] </link:label>
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<link:label id="lab_us-gaap_RevolvingCreditFacilityMember_3367BD8E61C7BD7B056E495FD92E44CA_label_en-US" xlink:label="lab_us-gaap_RevolvingCreditFacilityMember_E0777B47C2F856B088456509C0D7601F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revolving Credit Facility [Member] </link:label>
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<link:label id="lab_us-gaap_LineOfCreditFacilityLineItems_81DCD48F40C41E51AADB495FD92E446E_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityLineItems_6BD286BE058351C3881D283C907E0C42" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility [Line Items] </link:label>
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<link:label id="lab_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_39C3275E01B28006DBD941973C7AB471_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_39C3275E01B28006DBD941973C7AB471" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value Measured at Net Asset Value Per Share [Member] </link:label>
<link:label id="lab_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_39C3275E01B28006DBD941973C7AB471_label_en-US" xlink:label="lab_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_39C3275E01B28006DBD941973C7AB471" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Measured at Net Asset Value Per Share [Member] </link:label>
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<link:label id="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_29B00C9ACC2DD21537B941973C7A34E6_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_29B00C9ACC2DD21537B941973C7A34E6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] </link:label>
<link:label id="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_29B00C9ACC2DD21537B941973C7A34E6_label_en-US" xlink:label="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_29B00C9ACC2DD21537B941973C7A34E6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_29B00C9ACC2DD21537B941973C7A34E6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DerivativeAssets_ADAFB49923168346AE3E41973C7A656A_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssets_ADAFB49923168346AE3E41973C7A656A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Derivative assets </link:label>
<link:label id="lab_us-gaap_DerivativeAssets_ADAFB49923168346AE3E41973C7A656A_label_en-US" xlink:label="lab_us-gaap_DerivativeAssets_ADAFB49923168346AE3E41973C7A656A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative Asset </link:label>
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<link:label id="lab_us-gaap_AssetsFairValueDisclosure_2E4D3374CD8491F0C06A41973C7A9DA2_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosure_2E4D3374CD8491F0C06A41973C7A9DA2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total assets </link:label>
<link:label id="lab_us-gaap_AssetsFairValueDisclosure_2E4D3374CD8491F0C06A41973C7A9DA2_label_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosure_2E4D3374CD8491F0C06A41973C7A9DA2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Fair Value Disclosure </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_2E4D3374CD8491F0C06A41973C7A9DA2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DerivativeLiabilities_357EF88AF221CD47F7ED41973C7A066B_negatedLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities_357EF88AF221CD47F7ED41973C7A066B" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Derivative liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeLiabilities" xlink:label="loc_us-gaap_DerivativeLiabilities_357EF88AF221CD47F7ED41973C7A066B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FairValueNetAssetLiability_1ADDE7CFBC5F379FFD4641973C7A1AE8_totalLabel_en-US" xlink:label="lab_us-gaap_FairValueNetAssetLiability_1ADDE7CFBC5F379FFD4641973C7A1AE8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net assets (liabilities) </link:label>
<link:label id="lab_us-gaap_FairValueNetAssetLiability_1ADDE7CFBC5F379FFD4641973C7A1AE8_label_en-US" xlink:label="lab_us-gaap_FairValueNetAssetLiability_1ADDE7CFBC5F379FFD4641973C7A1AE8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Net Asset (Liability) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueNetAssetLiability" xlink:label="loc_us-gaap_FairValueNetAssetLiability_1ADDE7CFBC5F379FFD4641973C7A1AE8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfOperatingLeasedAssetsTable_A664293C6265CFCF50073C6AB006C6D9_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfOperatingLeasedAssetsTable_A664293C6265CFCF50073C6AB006C6D9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Operating Leased Assets [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfOperatingLeasedAssetsTable_A664293C6265CFCF50073C6AB006C6D9_label_en-US" xlink:label="lab_us-gaap_ScheduleOfOperatingLeasedAssetsTable_A664293C6265CFCF50073C6AB006C6D9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Operating Leased Assets [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfOperatingLeasedAssetsTable" xlink:label="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_A664293C6265CFCF50073C6AB006C6D9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OperatingLeasedAssetsLineItems_EF6D35EECB61394C7FBB3C6AB00A0DA4_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasedAssetsLineItems_EF6D35EECB61394C7FBB3C6AB00A0DA4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Leased Assets [Line Items] </link:label>
<link:label id="lab_us-gaap_OperatingLeasedAssetsLineItems_EF6D35EECB61394C7FBB3C6AB00A0DA4_label_en-US" xlink:label="lab_us-gaap_OperatingLeasedAssetsLineItems_EF6D35EECB61394C7FBB3C6AB00A0DA4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leased Assets [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasedAssetsLineItems" xlink:label="loc_us-gaap_OperatingLeasedAssetsLineItems_EF6D35EECB61394C7FBB3C6AB00A0DA4" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LeaseAndRentalExpense_9BA9F785BBAE73F6EB933C6AB00A2BF9_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseAndRentalExpense_9BA9F785BBAE73F6EB933C6AB00A2BF9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Rent expense </link:label>
<link:label id="lab_us-gaap_LeaseAndRentalExpense_9BA9F785BBAE73F6EB933C6AB00A2BF9_label_en-US" xlink:label="lab_us-gaap_LeaseAndRentalExpense_9BA9F785BBAE73F6EB933C6AB00A2BF9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Rent Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseAndRentalExpense" xlink:label="loc_us-gaap_LeaseAndRentalExpense_9BA9F785BBAE73F6EB933C6AB00A2BF9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeaseAndRentalExpense_9BA9F785BBAE73F6EB933C6AB00A2BF9" xlink:to="lab_us-gaap_LeaseAndRentalExpense_9BA9F785BBAE73F6EB933C6AB00A2BF9" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock_0DCD99058FC08ABA4769B88F97876A95_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock_CE0F1AA39CD85FED83DB803C68022ED0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Asset Retirement Obligations </link:label>
<link:label id="lab_us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock_0DCD99058FC08ABA4769B88F97876A95_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock_CE0F1AA39CD85FED83DB803C68022ED0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Asset Retirement Obligations [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock_CE0F1AA39CD85FED83DB803C68022ED0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_8D357C7325F3E9A28F7BB88F978790B1_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_5C34DF0D71A859C281CD3DBD07A33030" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Change in Asset Retirement Obligation </link:label>
<link:label id="lab_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_8D357C7325F3E9A28F7BB88F978790B1_label_en-US" xlink:label="lab_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_5C34DF0D71A859C281CD3DBD07A33030" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Change in Asset Retirement Obligation [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_5C34DF0D71A859C281CD3DBD07A33030" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock_5A3FF9A6F07297649309B88F978733E9_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock_29CCF90E369D50768DAD7CEDB42A7A81" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public Utilities General Disclosures </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock_5A3FF9A6F07297649309B88F978733E9_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock_29CCF90E369D50768DAD7CEDB42A7A81" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities General Disclosures [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_BE7629A0A02C1E9946C31B0E2537149D_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_951E259C5B7B5F47AD4D1BA948EE9E8B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] </link:label>
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<link:label id="lab_us-gaap_DefinedBenefitPlanServiceCost_CCBCAA98851A3E75214E1B0E25374125_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanServiceCost_0E06B9E0227350109261DF6EA8EBBE7B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Service cost </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanServiceCost_CCBCAA98851A3E75214E1B0E25374125_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanServiceCost_0E06B9E0227350109261DF6EA8EBBE7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Service Cost </link:label>
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<link:label id="lab_us-gaap_DefinedBenefitPlanInterestCost_898F38D25B9D2F17BFA81B0E2537D66C_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanInterestCost_E9EDF53CA2015A40A1DF08F2B12C1538" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest cost on projected benefit obligation </link:label>
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<link:label id="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_B865FEE9187EE24B2A391B0E253C227E_negatedLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_0EBA763B6581598B914E75CF361413D2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Expected return on plan assets </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_B865FEE9187EE24B2A391B0E253C227E_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_0EBA763B6581598B914E75CF361413D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Expected Return (Loss) on Plan Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_0EBA763B6581598B914E75CF361413D2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_18221BEAB5F25408E2091B0E253D66D8_negatedLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_9700A4901142517290E9C00D540C45F5" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Amortization of actuarial loss (gain) </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_18221BEAB5F25408E2091B0E253D66D8_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_9700A4901142517290E9C00D540C45F5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Amortization of Gain (Loss) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_9700A4901142517290E9C00D540C45F5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_21CF8A7C0B206F1BBED31B0E253D013A_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_41FC2CF25528538C8A2C0778F130F3A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of prior service (credit) cost </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_21CF8A7C0B206F1BBED31B0E253D013A_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_41FC2CF25528538C8A2C0778F130F3A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Amortization of Prior Service Cost (Credit) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_41FC2CF25528538C8A2C0778F130F3A9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_41FC2CF25528538C8A2C0778F130F3A9" xlink:to="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_41FC2CF25528538C8A2C0778F130F3A9" xlink:type="arc"/>
<link:label id="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_B0CD45C2C958EE332C2C1B0E253DB44B_totalLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_57901476B8B95D3DB9B94AC3617335E5" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net periodic costs </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_B0CD45C2C958EE332C2C1B0E253DB44B_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_57901476B8B95D3DB9B94AC3617335E5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Net Periodic Benefit Cost (Credit) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_57901476B8B95D3DB9B94AC3617335E5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_57901476B8B95D3DB9B94AC3617335E5" xlink:to="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_57901476B8B95D3DB9B94AC3617335E5" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeStatementAbstract_DDB11D8A551962493ABF4168624EE14E_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract_DDB11D8A551962493ABF4168624EE14E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Statement [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_DDB11D8A551962493ABF4168624EE14E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract_DDB11D8A551962493ABF4168624EE14E" xlink:to="lab_us-gaap_IncomeStatementAbstract_DDB11D8A551962493ABF4168624EE14E" xlink:type="arc"/>
<link:label id="lab_us-gaap_ElectricityUsRegulatedMember_A5094C452048AD176E4A4168624E0189_terseLabel_en-US" xlink:label="lab_us-gaap_ElectricityUsRegulatedMember_A5094C452048AD176E4A4168624E0189" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Electricity, US Regulated [Member] </link:label>
<link:label id="lab_us-gaap_ElectricityUsRegulatedMember_A5094C452048AD176E4A4168624E0189_label_en-US" xlink:label="lab_us-gaap_ElectricityUsRegulatedMember_A5094C452048AD176E4A4168624E0189" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Electricity, US Regulated [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ElectricityUsRegulatedMember" xlink:label="loc_us-gaap_ElectricityUsRegulatedMember_A5094C452048AD176E4A4168624E0189" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ElectricityUsRegulatedMember_A5094C452048AD176E4A4168624E0189" xlink:to="lab_us-gaap_ElectricityUsRegulatedMember_A5094C452048AD176E4A4168624E0189" xlink:type="arc"/>
<link:label id="lab_duk_ElectricityNonregulatedMember_15635BF8286978142A1C4168624ED3CC_terseLabel_en-US" xlink:label="lab_duk_ElectricityNonregulatedMember_15635BF8286978142A1C4168624ED3CC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Electricity, Nonregulated [Member] </link:label>
<link:label id="lab_duk_ElectricityNonregulatedMember_15635BF8286978142A1C4168624ED3CC_label_en-US" xlink:label="lab_duk_ElectricityNonregulatedMember_15635BF8286978142A1C4168624ED3CC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Electricity, Nonregulated [Member] </link:label>
<link:label id="lab_duk_ElectricityNonregulatedMember_15635BF8286978142A1C4168624ED3CC_documentation_en-US" xlink:label="lab_duk_ElectricityNonregulatedMember_15635BF8286978142A1C4168624ED3CC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Electricity, Nonregulated [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_ElectricityNonregulatedMember" xlink:label="loc_duk_ElectricityNonregulatedMember_15635BF8286978142A1C4168624ED3CC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_ElectricityNonregulatedMember_15635BF8286978142A1C4168624ED3CC" xlink:to="lab_duk_ElectricityNonregulatedMember_15635BF8286978142A1C4168624ED3CC" xlink:type="arc"/>
<link:label id="lab_us-gaap_ElectricityMember_C44F6C21043B05868E204168624EC92D_terseLabel_en-US" xlink:label="lab_us-gaap_ElectricityMember_C44F6C21043B05868E204168624EC92D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Electricity [Member] </link:label>
<link:label id="lab_us-gaap_ElectricityMember_C44F6C21043B05868E204168624EC92D_label_en-US" xlink:label="lab_us-gaap_ElectricityMember_C44F6C21043B05868E204168624EC92D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Electricity [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ElectricityMember" xlink:label="loc_us-gaap_ElectricityMember_C44F6C21043B05868E204168624EC92D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ElectricityMember_C44F6C21043B05868E204168624EC92D" xlink:to="lab_us-gaap_ElectricityMember_C44F6C21043B05868E204168624EC92D" xlink:type="arc"/>
<link:label id="lab_srt_NaturalGasReservesMember_E59AD85CF7FED99446234168624EB4D2_terseLabel_en-US" xlink:label="lab_srt_NaturalGasReservesMember_E59AD85CF7FED99446234168624EB4D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Natural Gas [Member] </link:label>
<link:label id="lab_srt_NaturalGasReservesMember_E59AD85CF7FED99446234168624EB4D2_label_en-US" xlink:label="lab_srt_NaturalGasReservesMember_E59AD85CF7FED99446234168624EB4D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Natural Gas [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_NaturalGasReservesMember" xlink:label="loc_srt_NaturalGasReservesMember_E59AD85CF7FED99446234168624EB4D2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_NaturalGasReservesMember_E59AD85CF7FED99446234168624EB4D2" xlink:to="lab_srt_NaturalGasReservesMember_E59AD85CF7FED99446234168624EB4D2" xlink:type="arc"/>
<link:label id="lab_us-gaap_RevenuesAbstract_222439F77BF3BB519ACF4168624E19DB_terseLabel_en-US" xlink:label="lab_us-gaap_RevenuesAbstract_222439F77BF3BB519ACF4168624E19DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Revenues </link:label>
<link:label id="lab_us-gaap_RevenuesAbstract_222439F77BF3BB519ACF4168624E19DB_label_en-US" xlink:label="lab_us-gaap_RevenuesAbstract_222439F77BF3BB519ACF4168624E19DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenues [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="loc_us-gaap_RevenuesAbstract_222439F77BF3BB519ACF4168624E19DB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenuesAbstract_222439F77BF3BB519ACF4168624E19DB" xlink:to="lab_us-gaap_RevenuesAbstract_222439F77BF3BB519ACF4168624E19DB" xlink:type="arc"/>
<link:label id="lab_us-gaap_RegulatedOperatingRevenueElectricNonNuclear_A2405A3C2630073A16784168624E1AA7_verboseLabel_en-US" xlink:label="lab_us-gaap_RegulatedOperatingRevenueElectricNonNuclear_A2405A3C2630073A16784168624E1AA7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Regulated electric </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatedOperatingRevenueElectricNonNuclear" xlink:label="loc_us-gaap_RegulatedOperatingRevenueElectricNonNuclear_A2405A3C2630073A16784168624E1AA7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatedOperatingRevenueElectricNonNuclear_A2405A3C2630073A16784168624E1AA7" xlink:to="lab_us-gaap_RegulatedOperatingRevenueElectricNonNuclear_A2405A3C2630073A16784168624E1AA7" xlink:type="arc"/>
<link:label id="lab_us-gaap_RegulatedOperatingRevenueGas_50A712D3FB5937C5F9824168624EB843_verboseLabel_en-US" xlink:label="lab_us-gaap_RegulatedOperatingRevenueGas_50A712D3FB5937C5F9824168624EB843" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Regulated natural gas </link:label>
<link:label id="lab_us-gaap_RegulatedOperatingRevenueGas_50A712D3FB5937C5F9824168624EB843_label_en-US" xlink:label="lab_us-gaap_RegulatedOperatingRevenueGas_50A712D3FB5937C5F9824168624EB843" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Regulated Operating Revenue, Gas </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatedOperatingRevenueGas" xlink:label="loc_us-gaap_RegulatedOperatingRevenueGas_50A712D3FB5937C5F9824168624EB843" xlink:type="locator"/>
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<link:label id="lab_us-gaap_UnregulatedOperatingRevenue_97F97B44B64E001CF08D4168624EA9E2_verboseLabel_en-US" xlink:label="lab_us-gaap_UnregulatedOperatingRevenue_97F97B44B64E001CF08D4168624EA9E2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Nonregulated electric and other </link:label>
<link:label id="lab_us-gaap_UnregulatedOperatingRevenue_97F97B44B64E001CF08D4168624EA9E2_label_en-US" xlink:label="lab_us-gaap_UnregulatedOperatingRevenue_97F97B44B64E001CF08D4168624EA9E2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Unregulated Operating Revenue </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UnregulatedOperatingRevenue" xlink:label="loc_us-gaap_UnregulatedOperatingRevenue_97F97B44B64E001CF08D4168624EA9E2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RegulatedAndUnregulatedOperatingRevenue_4202893CC3E7CD76DA6E4168624EA9C2_totalLabel_en-US" xlink:label="lab_us-gaap_RegulatedAndUnregulatedOperatingRevenue_4202893CC3E7CD76DA6E4168624EA9C2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total operating revenues </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatedAndUnregulatedOperatingRevenue" xlink:label="loc_us-gaap_RegulatedAndUnregulatedOperatingRevenue_4202893CC3E7CD76DA6E4168624EA9C2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CostsAndExpensesAbstract_27C08A57212EA07FF6CF4168624E9BAD_terseLabel_en-US" xlink:label="lab_us-gaap_CostsAndExpensesAbstract_27C08A57212EA07FF6CF4168624E9BAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Expenses </link:label>
<link:label id="lab_us-gaap_CostsAndExpensesAbstract_27C08A57212EA07FF6CF4168624E9BAD_label_en-US" xlink:label="lab_us-gaap_CostsAndExpensesAbstract_27C08A57212EA07FF6CF4168624E9BAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Costs and Expenses [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="loc_us-gaap_CostsAndExpensesAbstract_27C08A57212EA07FF6CF4168624E9BAD" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CostOfGoodsAndServicesSold_2B4907DC29B48527D07D4168624EECB2_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSold_2B4907DC29B48527D07D4168624EECB2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fuel used in electric generation and purchased power/Cost of natural gas </link:label>
<link:label id="lab_us-gaap_CostOfGoodsAndServicesSold_2B4907DC29B48527D07D4168624EECB2_label_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSold_2B4907DC29B48527D07D4168624EECB2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cost of Goods and Services Sold </link:label>
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<link:label id="lab_us-gaap_OperatingIncomeLoss_5176A1ED279265559E244168624EF209_label_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_5176A1ED279265559E244168624EF209" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Income (Loss) </link:label>
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<link:label id="lab_us-gaap_NonoperatingIncomeExpenseAbstract_42CDBAE05E99CC1596654168624EFA7B_terseLabel_en-US" xlink:label="lab_us-gaap_NonoperatingIncomeExpenseAbstract_42CDBAE05E99CC1596654168624EFA7B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Income and Expenses </link:label>
<link:label id="lab_us-gaap_NonoperatingIncomeExpenseAbstract_42CDBAE05E99CC1596654168624EFA7B_label_en-US" xlink:label="lab_us-gaap_NonoperatingIncomeExpenseAbstract_42CDBAE05E99CC1596654168624EFA7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Nonoperating Income (Expense) [Abstract] </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_5694646D6BAFED2437E34168624E7D4F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NonoperatingIncomeExpense_360600BE6EABEF1C5BC94168624E0AB2_label_en-US" xlink:label="lab_us-gaap_NonoperatingIncomeExpense_360600BE6EABEF1C5BC94168624E0AB2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Nonoperating Income (Expense) </link:label>
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<link:label id="lab_us-gaap_InterestExpense_BA59E04C094FFC18068C4168624ED1A4_label_en-US" xlink:label="lab_us-gaap_InterestExpense_BA59E04C094FFC18068C4168624ED1A4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest Expense </link:label>
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<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_FB15359F34BBA64937774168624EC565_totalLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_FB15359F34BBA64937774168624EC565" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Income From Continuing Operations </link:label>
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<link:label id="lab_duk_WellsFargoBankMember_D483E327F2230E181788411421EDAC44_documentation_en-US" xlink:label="lab_duk_WellsFargoBankMember_D483E327F2230E181788411421EDAC44" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Wells Fargo Bank [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_WellsFargoBankMember" xlink:label="loc_duk_WellsFargoBankMember_D483E327F2230E181788411421EDAC44" xlink:type="locator"/>
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<link:label id="lab_duk_JPMorganChaseMember_BE0B9181FD6EECD3F8C3414950004044_terseLabel_en-US" xlink:label="lab_duk_JPMorganChaseMember_BE0B9181FD6EECD3F8C3414950004044" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> JPMorgan Chase [Member] </link:label>
<link:label id="lab_duk_JPMorganChaseMember_BE0B9181FD6EECD3F8C3414950004044_label_en-US" xlink:label="lab_duk_JPMorganChaseMember_BE0B9181FD6EECD3F8C3414950004044" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> JPMorgan Chase [Member] </link:label>
<link:label id="lab_duk_JPMorganChaseMember_BE0B9181FD6EECD3F8C3414950004044_documentation_en-US" xlink:label="lab_duk_JPMorganChaseMember_BE0B9181FD6EECD3F8C3414950004044" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> JPMorgan Chase [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_JPMorganChaseMember" xlink:label="loc_duk_JPMorganChaseMember_BE0B9181FD6EECD3F8C3414950004044" xlink:type="locator"/>
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<link:label id="lab_duk_CitibankMember_34888D632A3C0B089418411421EEE567_terseLabel_en-US" xlink:label="lab_duk_CitibankMember_34888D632A3C0B089418411421EEE567" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Citibank [Member] </link:label>
<link:label id="lab_duk_CitibankMember_34888D632A3C0B089418411421EEE567_label_en-US" xlink:label="lab_duk_CitibankMember_34888D632A3C0B089418411421EEE567" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Citibank [Member] </link:label>
<link:label id="lab_duk_CitibankMember_34888D632A3C0B089418411421EEE567_documentation_en-US" xlink:label="lab_duk_CitibankMember_34888D632A3C0B089418411421EEE567" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Citibank [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_CitibankMember" xlink:label="loc_duk_CitibankMember_34888D632A3C0B089418411421EEE567" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquityLineItems_419686F1183F32E25816411421EEEB37_terseLabel_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquityLineItems_419686F1183F32E25816411421EEEB37" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Forward Contract Indexed to Issuer's Equity [Line Items] </link:label>
<link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquityLineItems_419686F1183F32E25816411421EEEB37_label_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquityLineItems_419686F1183F32E25816411421EEEB37" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Forward Contract Indexed to Issuer's Equity [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForwardContractIndexedToIssuersEquityLineItems" xlink:label="loc_us-gaap_ForwardContractIndexedToIssuersEquityLineItems_419686F1183F32E25816411421EEEB37" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ForwardContractIndexedToIssuersEquityLineItems_419686F1183F32E25816411421EEEB37" xlink:to="lab_us-gaap_ForwardContractIndexedToIssuersEquityLineItems_419686F1183F32E25816411421EEEB37" xlink:type="arc"/>
<link:label id="lab_duk_MaximumValueOfSharesToBeIssuedUnderATMProgram_2430A9B3528A685A802C411421EE342F_terseLabel_en-US" xlink:label="lab_duk_MaximumValueOfSharesToBeIssuedUnderATMProgram_2430A9B3528A685A802C411421EE342F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Maximum value of shares to be issued under ATM program </link:label>
<link:label id="lab_duk_MaximumValueOfSharesToBeIssuedUnderATMProgram_2430A9B3528A685A802C411421EE342F_label_en-US" xlink:label="lab_duk_MaximumValueOfSharesToBeIssuedUnderATMProgram_2430A9B3528A685A802C411421EE342F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Maximum Value Of Shares To Be Issued Under ATM Program </link:label>
<link:label id="lab_duk_MaximumValueOfSharesToBeIssuedUnderATMProgram_2430A9B3528A685A802C411421EE342F_documentation_en-US" xlink:label="lab_duk_MaximumValueOfSharesToBeIssuedUnderATMProgram_2430A9B3528A685A802C411421EE342F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Maximum value of shares to be issued under ATM program of its common stock through an at-the-market offering program, including an equity forward sales component. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_MaximumValueOfSharesToBeIssuedUnderATMProgram" xlink:label="loc_duk_MaximumValueOfSharesToBeIssuedUnderATMProgram_2430A9B3528A685A802C411421EE342F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquityIndexedShares_E73F44AFD103098287FC411421EECEBE_verboseLabel_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquityIndexedShares_E73F44AFD103098287FC411421EECEBE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Shares offered </link:label>
<link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquityIndexedShares_E73F44AFD103098287FC411421EECEBE_label_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquityIndexedShares_E73F44AFD103098287FC411421EECEBE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Forward Contract Indexed to Issuer's Equity, Indexed Shares </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForwardContractIndexedToIssuersEquityIndexedShares" xlink:label="loc_us-gaap_ForwardContractIndexedToIssuersEquityIndexedShares_E73F44AFD103098287FC411421EECEBE" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate_325598706B1361AD9613411421EFDE97_terseLabel_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate_325598706B1361AD9613411421EFDE97" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Forward contract indexed to issuer's equity, forward rate per share </link:label>
<link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate_325598706B1361AD9613411421EFDE97_label_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate_325598706B1361AD9613411421EFDE97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForwardContractIndexedToIssuersEquityForwardRate" xlink:label="loc_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate_325598706B1361AD9613411421EFDE97" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue_3BAA928046E003C8B6D2411421EFBD7E_terseLabel_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue_3BAA928046E003C8B6D2411421EFBD7E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Settlement alternative, shares </link:label>
<link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue_3BAA928046E003C8B6D2411421EFBD7E_label_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue_3BAA928046E003C8B6D2411421EFBD7E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Shares, at Fair Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue" xlink:label="loc_us-gaap_ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue_3BAA928046E003C8B6D2411421EFBD7E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SharesIssued_93E9AFFAB67F316A1ED6411421EF6B27_terseLabel_en-US" xlink:label="lab_us-gaap_SharesIssued_93E9AFFAB67F316A1ED6411421EF6B27" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Shares, Issued </link:label>
<link:label id="lab_us-gaap_SharesIssued_93E9AFFAB67F316A1ED6411421EF6B27_label_en-US" xlink:label="lab_us-gaap_SharesIssued_93E9AFFAB67F316A1ED6411421EF6B27" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Shares, Issued </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaap_SharesIssued_93E9AFFAB67F316A1ED6411421EF6B27" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_514E32D0D309111D2766411421EFF632_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_514E32D0D309111D2766411421EFF632" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock issued during period, shares, DRIP </link:label>
<link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_514E32D0D309111D2766411421EFF632_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_514E32D0D309111D2766411421EFF632" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Issued During Period, Shares, Dividend Reinvestment Plan </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_514E32D0D309111D2766411421EFF632" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_B79B44810BAD5506B777411421EFC8B5_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_B79B44810BAD5506B777411421EFC8B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock issued during period, value, DRIP </link:label>
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<link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_A8DB4A3B533D95B6153DB88F967AF0D8_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_2268FB29F41A5E41A8C8056C3540307F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party Transactions </link:label>
<link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_A8DB4A3B533D95B6153DB88F967AF0D8_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_2268FB29F41A5E41A8C8056C3540307F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transactions Disclosure [Text Block] </link:label>
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<link:label id="lab_us-gaap_DisaggregationOfRevenueTable_407D416A88581C88C88B3BC1701B7B6D_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTable_407D416A88581C88C88B3BC1701B7B6D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Disaggregation of Revenue [Table] </link:label>
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<link:label id="lab_us-gaap_NaturalGasUsRegulatedMember_4028D4B274A746F8FB183BC1701FBF49_terseLabel_en-US" xlink:label="lab_us-gaap_NaturalGasUsRegulatedMember_4028D4B274A746F8FB183BC1701FBF49" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Natural Gas, US Regulated [Member] </link:label>
<link:label id="lab_us-gaap_NaturalGasUsRegulatedMember_4028D4B274A746F8FB183BC1701FBF49_label_en-US" xlink:label="lab_us-gaap_NaturalGasUsRegulatedMember_4028D4B274A746F8FB183BC1701FBF49" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Natural Gas, US Regulated [Member] </link:label>
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<link:label id="lab_duk_OtherRevenuesMember_1F4081803A461C7F660E3BC1701FB86D_terseLabel_en-US" xlink:label="lab_duk_OtherRevenuesMember_1F4081803A461C7F660E3BC1701FB86D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Revenues [Member] </link:label>
<link:label id="lab_duk_OtherRevenuesMember_1F4081803A461C7F660E3BC1701FB86D_label_en-US" xlink:label="lab_duk_OtherRevenuesMember_1F4081803A461C7F660E3BC1701FB86D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Revenues [Member] </link:label>
<link:label id="lab_duk_OtherRevenuesMember_1F4081803A461C7F660E3BC1701FB86D_documentation_en-US" xlink:label="lab_duk_OtherRevenuesMember_1F4081803A461C7F660E3BC1701FB86D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Other Revenues </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_OtherRevenuesMember" xlink:label="loc_duk_OtherRevenuesMember_1F4081803A461C7F660E3BC1701FB86D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_OtherRevenuesMember_1F4081803A461C7F660E3BC1701FB86D" xlink:to="lab_duk_OtherRevenuesMember_1F4081803A461C7F660E3BC1701FB86D" xlink:type="arc"/>
<link:label id="lab_srt_MajorCustomersAxis_5AD0A1A7E81B175563373BC17020E453_terseLabel_en-US" xlink:label="lab_srt_MajorCustomersAxis_5AD0A1A7E81B175563373BC17020E453" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Customer [Axis] </link:label>
<link:label id="lab_srt_MajorCustomersAxis_5AD0A1A7E81B175563373BC17020E453_label_en-US" xlink:label="lab_srt_MajorCustomersAxis_5AD0A1A7E81B175563373BC17020E453" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Customer [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MajorCustomersAxis" xlink:label="loc_srt_MajorCustomersAxis_5AD0A1A7E81B175563373BC17020E453" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MajorCustomersAxis_5AD0A1A7E81B175563373BC17020E453" xlink:to="lab_srt_MajorCustomersAxis_5AD0A1A7E81B175563373BC17020E453" xlink:type="arc"/>
<link:label id="lab_srt_NameOfMajorCustomerDomain_95E817ADF5C6FB3909083BC170202612_terseLabel_en-US" xlink:label="lab_srt_NameOfMajorCustomerDomain_95E817ADF5C6FB3909083BC170202612" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Customer [Domain] </link:label>
<link:label id="lab_srt_NameOfMajorCustomerDomain_95E817ADF5C6FB3909083BC170202612_label_en-US" xlink:label="lab_srt_NameOfMajorCustomerDomain_95E817ADF5C6FB3909083BC170202612" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Customer [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_NameOfMajorCustomerDomain" xlink:label="loc_srt_NameOfMajorCustomerDomain_95E817ADF5C6FB3909083BC170202612" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_NameOfMajorCustomerDomain_95E817ADF5C6FB3909083BC170202612" xlink:to="lab_srt_NameOfMajorCustomerDomain_95E817ADF5C6FB3909083BC170202612" xlink:type="arc"/>
<link:label id="lab_duk_ResidentialMember_D707FD02514A82CD0C403BC170206B0D_terseLabel_en-US" xlink:label="lab_duk_ResidentialMember_D707FD02514A82CD0C403BC170206B0D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Residential [Member] </link:label>
<link:label id="lab_duk_ResidentialMember_D707FD02514A82CD0C403BC170206B0D_label_en-US" xlink:label="lab_duk_ResidentialMember_D707FD02514A82CD0C403BC170206B0D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Residential [Member] </link:label>
<link:label id="lab_duk_ResidentialMember_D707FD02514A82CD0C403BC170206B0D_documentation_en-US" xlink:label="lab_duk_ResidentialMember_D707FD02514A82CD0C403BC170206B0D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Residential Customer Class [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_ResidentialMember" xlink:label="loc_duk_ResidentialMember_D707FD02514A82CD0C403BC170206B0D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_ResidentialMember_D707FD02514A82CD0C403BC170206B0D" xlink:to="lab_duk_ResidentialMember_D707FD02514A82CD0C403BC170206B0D" xlink:type="arc"/>
<link:label id="lab_duk_GeneralMember_B8D35DB78B3AD2892D423BC170208CAD_terseLabel_en-US" xlink:label="lab_duk_GeneralMember_B8D35DB78B3AD2892D423BC170208CAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> General [Member] </link:label>
<link:label id="lab_duk_GeneralMember_B8D35DB78B3AD2892D423BC170208CAD_label_en-US" xlink:label="lab_duk_GeneralMember_B8D35DB78B3AD2892D423BC170208CAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> General [Member] </link:label>
<link:label id="lab_duk_GeneralMember_B8D35DB78B3AD2892D423BC170208CAD_documentation_en-US" xlink:label="lab_duk_GeneralMember_B8D35DB78B3AD2892D423BC170208CAD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> General service customers </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_GeneralMember" xlink:label="loc_duk_GeneralMember_B8D35DB78B3AD2892D423BC170208CAD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_GeneralMember_B8D35DB78B3AD2892D423BC170208CAD" xlink:to="lab_duk_GeneralMember_B8D35DB78B3AD2892D423BC170208CAD" xlink:type="arc"/>
<link:label id="lab_duk_CommercialMember_371BE03785EDA32758763BC17021A2F3_terseLabel_en-US" xlink:label="lab_duk_CommercialMember_371BE03785EDA32758763BC17021A2F3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Commercial [Member] </link:label>
<link:label id="lab_duk_CommercialMember_371BE03785EDA32758763BC17021A2F3_label_en-US" xlink:label="lab_duk_CommercialMember_371BE03785EDA32758763BC17021A2F3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Commercial [Member] </link:label>
<link:label id="lab_duk_CommercialMember_371BE03785EDA32758763BC17021A2F3_documentation_en-US" xlink:label="lab_duk_CommercialMember_371BE03785EDA32758763BC17021A2F3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Commercial Customer [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_CommercialMember" xlink:label="loc_duk_CommercialMember_371BE03785EDA32758763BC17021A2F3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_CommercialMember_371BE03785EDA32758763BC17021A2F3" xlink:to="lab_duk_CommercialMember_371BE03785EDA32758763BC17021A2F3" xlink:type="arc"/>
<link:label id="lab_duk_IndustrialMember_8DDBDFC516126EC1EB973BC170215DA0_terseLabel_en-US" xlink:label="lab_duk_IndustrialMember_8DDBDFC516126EC1EB973BC170215DA0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Industrial [Member] </link:label>
<link:label id="lab_duk_IndustrialMember_8DDBDFC516126EC1EB973BC170215DA0_label_en-US" xlink:label="lab_duk_IndustrialMember_8DDBDFC516126EC1EB973BC170215DA0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Industrial [Member] </link:label>
<link:label id="lab_duk_IndustrialMember_8DDBDFC516126EC1EB973BC170215DA0_documentation_en-US" xlink:label="lab_duk_IndustrialMember_8DDBDFC516126EC1EB973BC170215DA0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Industrial Customer [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_IndustrialMember" xlink:label="loc_duk_IndustrialMember_8DDBDFC516126EC1EB973BC170215DA0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_IndustrialMember_8DDBDFC516126EC1EB973BC170215DA0" xlink:to="lab_duk_IndustrialMember_8DDBDFC516126EC1EB973BC170215DA0" xlink:type="arc"/>
<link:label id="lab_duk_WholesaleMember_CC87D1CF05E2CF298C3D3BC170213DE4_terseLabel_en-US" xlink:label="lab_duk_WholesaleMember_CC87D1CF05E2CF298C3D3BC170213DE4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Wholesale [Member] </link:label>
<link:label id="lab_duk_WholesaleMember_CC87D1CF05E2CF298C3D3BC170213DE4_label_en-US" xlink:label="lab_duk_WholesaleMember_CC87D1CF05E2CF298C3D3BC170213DE4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Wholesale [Member] </link:label>
<link:label id="lab_duk_WholesaleMember_CC87D1CF05E2CF298C3D3BC170213DE4_documentation_en-US" xlink:label="lab_duk_WholesaleMember_CC87D1CF05E2CF298C3D3BC170213DE4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Wholesale Customer [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_WholesaleMember" xlink:label="loc_duk_WholesaleMember_CC87D1CF05E2CF298C3D3BC170213DE4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_WholesaleMember_CC87D1CF05E2CF298C3D3BC170213DE4" xlink:to="lab_duk_WholesaleMember_CC87D1CF05E2CF298C3D3BC170213DE4" xlink:type="arc"/>
<link:label id="lab_duk_PowerGenerationMember_B1A0FAD8B23709B398593BC170215333_terseLabel_en-US" xlink:label="lab_duk_PowerGenerationMember_B1A0FAD8B23709B398593BC170215333" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Power Generation [Member] </link:label>
<link:label id="lab_duk_PowerGenerationMember_B1A0FAD8B23709B398593BC170215333_label_en-US" xlink:label="lab_duk_PowerGenerationMember_B1A0FAD8B23709B398593BC170215333" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Power Generation [Member] </link:label>
<link:label id="lab_duk_PowerGenerationMember_B1A0FAD8B23709B398593BC170215333_documentation_en-US" xlink:label="lab_duk_PowerGenerationMember_B1A0FAD8B23709B398593BC170215333" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Power Generation [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PowerGenerationMember" xlink:label="loc_duk_PowerGenerationMember_B1A0FAD8B23709B398593BC170215333" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PowerGenerationMember_B1A0FAD8B23709B398593BC170215333" xlink:to="lab_duk_PowerGenerationMember_B1A0FAD8B23709B398593BC170215333" xlink:type="arc"/>
<link:label id="lab_us-gaap_DisaggregationOfRevenueLineItems_4370F1D670D08A2ECC9B3BC1702175B8_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueLineItems_4370F1D670D08A2ECC9B3BC1702175B8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Disaggregation of Revenue [Line Items] </link:label>
<link:label id="lab_us-gaap_DisaggregationOfRevenueLineItems_4370F1D670D08A2ECC9B3BC1702175B8_label_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueLineItems_4370F1D670D08A2ECC9B3BC1702175B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Disaggregation of Revenue [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_4370F1D670D08A2ECC9B3BC1702175B8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_4370F1D670D08A2ECC9B3BC1702175B8" xlink:to="lab_us-gaap_DisaggregationOfRevenueLineItems_4370F1D670D08A2ECC9B3BC1702175B8" xlink:type="arc"/>
<link:label id="lab_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CFFE251ED8B0BC4B010F3BC170212C8C_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CFFE251ED8B0BC4B010F3BC170212C8C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue from contracts with customers </link:label>
<link:label id="lab_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CFFE251ED8B0BC4B010F3BC170212C8C_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CFFE251ED8B0BC4B010F3BC170212C8C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue from Contract with Customer, Including Assessed Tax </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CFFE251ED8B0BC4B010F3BC170212C8C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CFFE251ED8B0BC4B010F3BC170212C8C" xlink:to="lab_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CFFE251ED8B0BC4B010F3BC170212C8C" xlink:type="arc"/>
<link:label id="lab_us-gaap_RevenueNotFromContractWithCustomer_027C637D2035CCE170463BC170221F52_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueNotFromContractWithCustomer_027C637D2035CCE170463BC170221F52" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue from sources other than contracts with customers </link:label>
<link:label id="lab_us-gaap_RevenueNotFromContractWithCustomer_027C637D2035CCE170463BC170221F52_label_en-US" xlink:label="lab_us-gaap_RevenueNotFromContractWithCustomer_027C637D2035CCE170463BC170221F52" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue Not from Contract with Customer </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueNotFromContractWithCustomer" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomer_027C637D2035CCE170463BC170221F52" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueNotFromContractWithCustomer_027C637D2035CCE170463BC170221F52" xlink:to="lab_us-gaap_RevenueNotFromContractWithCustomer_027C637D2035CCE170463BC170221F52" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_CFB048A831FDF5820CA3B88F96401E04_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_414E25B3F05752F8BE5C38B6661B8265" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value Measurements </link:label>
<link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_CFB048A831FDF5820CA3B88F96401E04_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_414E25B3F05752F8BE5C38B6661B8265" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_414E25B3F05752F8BE5C38B6661B8265" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresTextBlock_414E25B3F05752F8BE5C38B6661B8265" xlink:to="lab_us-gaap_FairValueDisclosuresTextBlock_414E25B3F05752F8BE5C38B6661B8265" xlink:type="arc"/>
<link:label id="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_D582597FF3B8D14ECB5AB88F97CAA499_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_AA3159BA6FFC5028AA7FA37D4DE75699" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stockholders' Equity </link:label>
<link:label id="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_D582597FF3B8D14ECB5AB88F97CAA499_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_AA3159BA6FFC5028AA7FA37D4DE75699" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stockholders' Equity Note Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_AA3159BA6FFC5028AA7FA37D4DE75699" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_AA3159BA6FFC5028AA7FA37D4DE75699" xlink:to="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_AA3159BA6FFC5028AA7FA37D4DE75699" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_89DA6948CFBB7C4267763C6AB01E0B10_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_89DA6948CFBB7C4267763C6AB01E0B10" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> ROU assets </link:label>
<link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_89DA6948CFBB7C4267763C6AB01E0B10_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_89DA6948CFBB7C4267763C6AB01E0B10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Right-of-Use Asset </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_89DA6948CFBB7C4267763C6AB01E0B10" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseRightOfUseAsset_89DA6948CFBB7C4267763C6AB01E0B10" xlink:to="lab_us-gaap_OperatingLeaseRightOfUseAsset_89DA6948CFBB7C4267763C6AB01E0B10" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_AC521988FB8F8B4DA7173C6AB01EF204_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_AC521988FB8F8B4DA7173C6AB01EF204" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease liabilities – current </link:label>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_AC521988FB8F8B4DA7173C6AB01EF204_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_AC521988FB8F8B4DA7173C6AB01EF204" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Liability, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_AC521988FB8F8B4DA7173C6AB01EF204" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_C3133A2D2C70287ED7623C6AB01E5663_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_C3133A2D2C70287ED7623C6AB01E5663" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease liabilities – noncurrent </link:label>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_C3133A2D2C70287ED7623C6AB01E5663_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_C3133A2D2C70287ED7623C6AB01E5663" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Liability, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_C3133A2D2C70287ED7623C6AB01E5663" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_C3133A2D2C70287ED7623C6AB01E5663" xlink:to="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_C3133A2D2C70287ED7623C6AB01E5663" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetsAbstract_E50ADBEAC1AF382D349F374BDF9522F7_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract_E50ADBEAC1AF382D349F374BDF9522F7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> ASSETS </link:label>
<link:label id="lab_us-gaap_AssetsAbstract_E50ADBEAC1AF382D349F374BDF9522F7_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract_E50ADBEAC1AF382D349F374BDF9522F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_E50ADBEAC1AF382D349F374BDF9522F7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract_E50ADBEAC1AF382D349F374BDF9522F7" xlink:to="lab_us-gaap_AssetsAbstract_E50ADBEAC1AF382D349F374BDF9522F7" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccountsAndOtherReceivablesNetCurrent_A9FAFB859680B6ADBBBE374BDF957FD6_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsAndOtherReceivablesNetCurrent_A9FAFB859680B6ADBBBE374BDF957FD6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Receivables (net of allowance for doubtful accounts) </link:label>
<link:label id="lab_us-gaap_AccountsAndOtherReceivablesNetCurrent_A9FAFB859680B6ADBBBE374BDF957FD6_label_en-US" xlink:label="lab_us-gaap_AccountsAndOtherReceivablesNetCurrent_A9FAFB859680B6ADBBBE374BDF957FD6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts and Other Receivables, Net, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsAndOtherReceivablesNetCurrent" xlink:label="loc_us-gaap_AccountsAndOtherReceivablesNetCurrent_A9FAFB859680B6ADBBBE374BDF957FD6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccountsReceivableNetCurrent_C12D65CB885608D1F992374BDF9526D8_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_C12D65CB885608D1F992374BDF9526D8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Receivables of VIEs (net of allowance for doubtful accounts) </link:label>
<link:label id="lab_us-gaap_AccountsReceivableNetCurrent_C12D65CB885608D1F992374BDF9526D8_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_C12D65CB885608D1F992374BDF9526D8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, after Allowance for Credit Loss, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_C12D65CB885608D1F992374BDF9526D8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DueFromRelatedPartiesCurrent_17D8B1BAFFE01B0EF6C3374BDF950739_verboseLabel_en-US" xlink:label="lab_us-gaap_DueFromRelatedPartiesCurrent_17D8B1BAFFE01B0EF6C3374BDF950739" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Receivables from affiliated companies </link:label>
<link:label id="lab_us-gaap_DueFromRelatedPartiesCurrent_17D8B1BAFFE01B0EF6C3374BDF950739_label_en-US" xlink:label="lab_us-gaap_DueFromRelatedPartiesCurrent_17D8B1BAFFE01B0EF6C3374BDF950739" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Due from Related Parties, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueFromRelatedPartiesCurrent" xlink:label="loc_us-gaap_DueFromRelatedPartiesCurrent_17D8B1BAFFE01B0EF6C3374BDF950739" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NotesReceivableRelatedPartiesCurrent_0723548A8A5E0797B29C374BDF9557B1_terseLabel_en-US" xlink:label="lab_us-gaap_NotesReceivableRelatedPartiesCurrent_0723548A8A5E0797B29C374BDF9557B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notes receivable from affiliated companies </link:label>
<link:label id="lab_us-gaap_NotesReceivableRelatedPartiesCurrent_0723548A8A5E0797B29C374BDF9557B1_label_en-US" xlink:label="lab_us-gaap_NotesReceivableRelatedPartiesCurrent_0723548A8A5E0797B29C374BDF9557B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Notes Receivable, Related Parties, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NotesReceivableRelatedPartiesCurrent" xlink:label="loc_us-gaap_NotesReceivableRelatedPartiesCurrent_0723548A8A5E0797B29C374BDF9557B1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesInventory_5E3E1F490EAAACBB83CC374BDF95D9AB_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventory_5E3E1F490EAAACBB83CC374BDF95D9AB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Inventory </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesInventory_5E3E1F490EAAACBB83CC374BDF95D9AB_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventory_5E3E1F490EAAACBB83CC374BDF95D9AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Inventory </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesInventory" xlink:label="loc_us-gaap_PublicUtilitiesInventory_5E3E1F490EAAACBB83CC374BDF95D9AB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesInventory_5E3E1F490EAAACBB83CC374BDF95D9AB" xlink:to="lab_us-gaap_PublicUtilitiesInventory_5E3E1F490EAAACBB83CC374BDF95D9AB" xlink:type="arc"/>
<link:label id="lab_us-gaap_RegulatoryAssetsCurrent_199A3AA4C00E476ED2EE374BDF9561E6_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetsCurrent_199A3AA4C00E476ED2EE374BDF9561E6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Regulatory assets (includes amounts related to VIEs) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_199A3AA4C00E476ED2EE374BDF9561E6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_CF4B2BDFF5DCE0C83D4E374BDF950C7B_verboseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_CF4B2BDFF5DCE0C83D4E374BDF950C7B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Other (includes amounts related to VIEs) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_CF4B2BDFF5DCE0C83D4E374BDF950C7B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AssetsCurrent_1A696DA25C88D20CA1AD374BDF95835E_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent_1A696DA25C88D20CA1AD374BDF95835E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total current assets </link:label>
<link:label id="lab_us-gaap_AssetsCurrent_1A696DA25C88D20CA1AD374BDF95835E_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent_1A696DA25C88D20CA1AD374BDF95835E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_1A696DA25C88D20CA1AD374BDF95835E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrent_1A696DA25C88D20CA1AD374BDF95835E" xlink:to="lab_us-gaap_AssetsCurrent_1A696DA25C88D20CA1AD374BDF95835E" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAbstract_274F25454AC83B0CDE66374BDF95BAD2_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAbstract_274F25454AC83B0CDE66374BDF95BAD2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAbstract_274F25454AC83B0CDE66374BDF95BAD2_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAbstract_274F25454AC83B0CDE66374BDF95BAD2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_274F25454AC83B0CDE66374BDF95BAD2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_69AB5E68078A9C100B36374BDF95C98B_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_69AB5E68078A9C100B36374BDF95C98B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_69AB5E68078A9C100B36374BDF95C98B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_655CA2A731F1A7F2B8B3374BDF95030F_totalLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_655CA2A731F1A7F2B8B3374BDF95030F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net property, plant and equipment </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_655CA2A731F1A7F2B8B3374BDF95030F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AssetsNoncurrentAbstract_C692974E81D4BA522C99374BDF955369_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsNoncurrentAbstract_C692974E81D4BA522C99374BDF955369" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Noncurrent Assets </link:label>
<link:label id="lab_us-gaap_AssetsNoncurrentAbstract_C692974E81D4BA522C99374BDF955369_label_en-US" xlink:label="lab_us-gaap_AssetsNoncurrentAbstract_C692974E81D4BA522C99374BDF955369" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Noncurrent [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsNoncurrentAbstract" xlink:label="loc_us-gaap_AssetsNoncurrentAbstract_C692974E81D4BA522C99374BDF955369" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RegulatoryAssetsNoncurrent_ED9BDE39F03EC560E1D3374BDF95C8EE_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetsNoncurrent_ED9BDE39F03EC560E1D3374BDF95C8EE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Regulatory assets (includes amounts related to VIEs) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_ED9BDE39F03EC560E1D3374BDF95C8EE" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DecommissioningFundInvestments_911F48A9B7A05DA4F899374BDF95BD78_terseLabel_en-US" xlink:label="lab_us-gaap_DecommissioningFundInvestments_911F48A9B7A05DA4F899374BDF95BD78" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Nuclear decommissioning trust funds </link:label>
<link:label id="lab_us-gaap_DecommissioningFundInvestments_911F48A9B7A05DA4F899374BDF95BD78_label_en-US" xlink:label="lab_us-gaap_DecommissioningFundInvestments_911F48A9B7A05DA4F899374BDF95BD78" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Decommissioning Fund Investments </link:label>
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<link:label id="lab_us-gaap_OtherAssetsNoncurrent_86624853B7CE6E40B868374BDF952C2C_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_86624853B7CE6E40B868374BDF952C2C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Other (includes amounts related to VIEs) </link:label>
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<link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_8057BAC290CB303D7E79374BDF95753B_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_8057BAC290CB303D7E79374BDF95753B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities and Equity [Abstract] </link:label>
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<link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_AA363506B18A36A998FF374BDF950320_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_AA363506B18A36A998FF374BDF950320" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities, Current [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_AA363506B18A36A998FF374BDF950320" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccountsPayableCurrent_C17E792DE33358DBC9A0374BDF952DDC_label_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_C17E792DE33358DBC9A0374BDF952DDC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Payable, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_C17E792DE33358DBC9A0374BDF952DDC" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DueToRelatedPartiesCurrent_1B2B345FD5D228B4AC9D374BDF9564CF_label_en-US" xlink:label="lab_us-gaap_DueToRelatedPartiesCurrent_1B2B345FD5D228B4AC9D374BDF9564CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Due to Related Parties, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent" xlink:label="loc_us-gaap_DueToRelatedPartiesCurrent_1B2B345FD5D228B4AC9D374BDF9564CF" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShortTermBorrowings_5A0BA6C6CEC1BE1EBBE6374BDF951DB6_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermBorrowings_5A0BA6C6CEC1BE1EBBE6374BDF951DB6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notes payable and commercial paper </link:label>
<link:label id="lab_us-gaap_ShortTermBorrowings_5A0BA6C6CEC1BE1EBBE6374BDF951DB6_label_en-US" xlink:label="lab_us-gaap_ShortTermBorrowings_5A0BA6C6CEC1BE1EBBE6374BDF951DB6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Short-term Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermBorrowings" xlink:label="loc_us-gaap_ShortTermBorrowings_5A0BA6C6CEC1BE1EBBE6374BDF951DB6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent_DD3418D7EB786038F88E374BDF955B10_label_en-US" xlink:label="lab_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent_DD3418D7EB786038F88E374BDF955B10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Notes Payable, Related Parties, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NotesPayableRelatedPartiesClassifiedCurrent" xlink:label="loc_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent_DD3418D7EB786038F88E374BDF955B10" xlink:type="locator"/>
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<link:label id="lab_us-gaap_TaxesPayableCurrent_0025AAD8A4424CC6C7B9374BDF953013_verboseLabel_en-US" xlink:label="lab_us-gaap_TaxesPayableCurrent_0025AAD8A4424CC6C7B9374BDF953013" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Taxes accrued </link:label>
<link:label id="lab_us-gaap_TaxesPayableCurrent_0025AAD8A4424CC6C7B9374BDF953013_label_en-US" xlink:label="lab_us-gaap_TaxesPayableCurrent_0025AAD8A4424CC6C7B9374BDF953013" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Taxes Payable, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TaxesPayableCurrent" xlink:label="loc_us-gaap_TaxesPayableCurrent_0025AAD8A4424CC6C7B9374BDF953013" xlink:type="locator"/>
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<link:label id="lab_us-gaap_InterestPayableCurrent_E1B4EE08E2E7476D5FC0374BDF95A248_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPayableCurrent_E1B4EE08E2E7476D5FC0374BDF95A248" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest accrued </link:label>
<link:label id="lab_us-gaap_InterestPayableCurrent_E1B4EE08E2E7476D5FC0374BDF95A248_label_en-US" xlink:label="lab_us-gaap_InterestPayableCurrent_E1B4EE08E2E7476D5FC0374BDF95A248" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest Payable, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_E1B4EE08E2E7476D5FC0374BDF95A248" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LongTermDebtCurrent_B70F3895FE221B3D7F5C374BDF95B2C7_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtCurrent_B70F3895FE221B3D7F5C374BDF95B2C7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current maturities of long-term debt (includes amounts related to VIEs) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_B70F3895FE221B3D7F5C374BDF95B2C7" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AssetRetirementObligationCurrent_2F269652F36586DF3CA1374BDF95416E_verboseLabel_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationCurrent_2F269652F36586DF3CA1374BDF95416E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Asset retirement obligations </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetRetirementObligationCurrent" xlink:label="loc_us-gaap_AssetRetirementObligationCurrent_2F269652F36586DF3CA1374BDF95416E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LiabilitiesCurrent_A90C7A936E870F8846DA374BDF95D576_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_A90C7A936E870F8846DA374BDF95D576" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total current liabilities </link:label>
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<link:label id="lab_duk_LesseeLeaseSupplementalInformationTableTextBlock_4DAF1AAAE52C18965C223C6AB026F069_terseLabel_en-US" xlink:label="lab_duk_LesseeLeaseSupplementalInformationTableTextBlock_4DAF1AAAE52C18965C223C6AB026F069" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Supplemental Information </link:label>
<link:label id="lab_duk_LesseeLeaseSupplementalInformationTableTextBlock_4DAF1AAAE52C18965C223C6AB026F069_label_en-US" xlink:label="lab_duk_LesseeLeaseSupplementalInformationTableTextBlock_4DAF1AAAE52C18965C223C6AB026F069" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Supplemental Information [Table Text Block] </link:label>
<link:label id="lab_duk_LesseeLeaseSupplementalInformationTableTextBlock_4DAF1AAAE52C18965C223C6AB026F069_documentation_en-US" xlink:label="lab_duk_LesseeLeaseSupplementalInformationTableTextBlock_4DAF1AAAE52C18965C223C6AB026F069" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Supplemental Information [Table Text Block] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_LesseeLeaseSupplementalInformationTableTextBlock" xlink:label="loc_duk_LesseeLeaseSupplementalInformationTableTextBlock_4DAF1AAAE52C18965C223C6AB026F069" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_LesseeLeaseSupplementalInformationTableTextBlock_4DAF1AAAE52C18965C223C6AB026F069" xlink:to="lab_duk_LesseeLeaseSupplementalInformationTableTextBlock_4DAF1AAAE52C18965C223C6AB026F069" xlink:type="arc"/>
<link:label id="lab_srt_StatementScenarioAxis_43895DD4044F8D161D5D4147075EB144_terseLabel_en-US" xlink:label="lab_srt_StatementScenarioAxis_43895DD4044F8D161D5D4147075EB144" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Scenario [Axis] </link:label>
<link:label id="lab_srt_StatementScenarioAxis_43895DD4044F8D161D5D4147075EB144_label_en-US" xlink:label="lab_srt_StatementScenarioAxis_43895DD4044F8D161D5D4147075EB144" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Scenario [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_StatementScenarioAxis" xlink:label="loc_srt_StatementScenarioAxis_43895DD4044F8D161D5D4147075EB144" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_StatementScenarioAxis_43895DD4044F8D161D5D4147075EB144" xlink:to="lab_srt_StatementScenarioAxis_43895DD4044F8D161D5D4147075EB144" xlink:type="arc"/>
<link:label id="lab_srt_ScenarioUnspecifiedDomain_22A404E89F492BD4724A4147075E0B01_terseLabel_en-US" xlink:label="lab_srt_ScenarioUnspecifiedDomain_22A404E89F492BD4724A4147075E0B01" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Scenario [Domain] </link:label>
<link:label id="lab_srt_ScenarioUnspecifiedDomain_22A404E89F492BD4724A4147075E0B01_label_en-US" xlink:label="lab_srt_ScenarioUnspecifiedDomain_22A404E89F492BD4724A4147075E0B01" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Scenario [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioUnspecifiedDomain" xlink:label="loc_srt_ScenarioUnspecifiedDomain_22A404E89F492BD4724A4147075E0B01" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScenarioUnspecifiedDomain_22A404E89F492BD4724A4147075E0B01" xlink:to="lab_srt_ScenarioUnspecifiedDomain_22A404E89F492BD4724A4147075E0B01" xlink:type="arc"/>
<link:label id="lab_srt_ScenarioForecastMember_BD0353EE8B2288A382784147075E6505_terseLabel_en-US" xlink:label="lab_srt_ScenarioForecastMember_BD0353EE8B2288A382784147075E6505" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Forecast [Member] </link:label>
<link:label id="lab_srt_ScenarioForecastMember_BD0353EE8B2288A382784147075E6505_label_en-US" xlink:label="lab_srt_ScenarioForecastMember_BD0353EE8B2288A382784147075E6505" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Forecast [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioForecastMember" xlink:label="loc_srt_ScenarioForecastMember_BD0353EE8B2288A382784147075E6505" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScenarioForecastMember_BD0353EE8B2288A382784147075E6505" xlink:to="lab_srt_ScenarioForecastMember_BD0353EE8B2288A382784147075E6505" xlink:type="arc"/>
<link:label id="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_ED7B23A8449F7FCA63E14147075F8960_terseLabel_en-US" xlink:label="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_ED7B23A8449F7FCA63E14147075F8960" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Shares issued (in shares) </link:label>
<link:label id="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_ED7B23A8449F7FCA63E14147075F8960_label_en-US" xlink:label="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_ED7B23A8449F7FCA63E14147075F8960" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Sale of Stock, Number of Shares Issued in Transaction </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_ED7B23A8449F7FCA63E14147075F8960" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SaleOfStockPricePerShare_F30A1B61DE836B29088F414707601CC5_terseLabel_en-US" xlink:label="lab_us-gaap_SaleOfStockPricePerShare_F30A1B61DE836B29088F414707601CC5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Price per share (in usd per share) </link:label>
<link:label id="lab_us-gaap_SaleOfStockPricePerShare_F30A1B61DE836B29088F414707601CC5_label_en-US" xlink:label="lab_us-gaap_SaleOfStockPricePerShare_F30A1B61DE836B29088F414707601CC5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Sale of Stock, Price Per Share </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleOfStockPricePerShare" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_F30A1B61DE836B29088F414707601CC5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_5037BC53490337B994E4414707601D03_verboseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_5037BC53490337B994E4414707601D03" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from the issuance of preferred stock, net of issuance costs </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_5037BC53490337B994E4414707601D03" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_5037BC53490337B994E4414707601D03" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_5037BC53490337B994E4414707601D03" xlink:type="arc"/>
<link:label id="lab_us-gaap_PreferredStockLiquidationPreference_529219F425AA94325E7B414707604964_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockLiquidationPreference_529219F425AA94325E7B414707604964" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Liquidation preference per share (in usd per share) </link:label>
<link:label id="lab_us-gaap_PreferredStockLiquidationPreference_529219F425AA94325E7B414707604964_label_en-US" xlink:label="lab_us-gaap_PreferredStockLiquidationPreference_529219F425AA94325E7B414707604964" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Liquidation Preference Per Share </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockLiquidationPreference" xlink:label="loc_us-gaap_PreferredStockLiquidationPreference_529219F425AA94325E7B414707604964" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockLiquidationPreference_529219F425AA94325E7B414707604964" xlink:to="lab_us-gaap_PreferredStockLiquidationPreference_529219F425AA94325E7B414707604964" xlink:type="arc"/>
<link:label id="lab_us-gaap_PreferredStockDividendRatePercentage_C9CA16B35AFAA8B66B574147076168D9_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockDividendRatePercentage_C9CA16B35AFAA8B66B574147076168D9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cumulative dividend rate per annum </link:label>
<link:label id="lab_us-gaap_PreferredStockDividendRatePercentage_C9CA16B35AFAA8B66B574147076168D9_label_en-US" xlink:label="lab_us-gaap_PreferredStockDividendRatePercentage_C9CA16B35AFAA8B66B574147076168D9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Dividend Rate, Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockDividendRatePercentage" xlink:label="loc_us-gaap_PreferredStockDividendRatePercentage_C9CA16B35AFAA8B66B574147076168D9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PreferredStockRedemptionPricePerShare_DCE6AF958AE2CD170FF3414707613B51_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockRedemptionPricePerShare_DCE6AF958AE2CD170FF3414707613B51" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Redemption price (in usd per share) </link:label>
<link:label id="lab_us-gaap_PreferredStockRedemptionPricePerShare_DCE6AF958AE2CD170FF3414707613B51_label_en-US" xlink:label="lab_us-gaap_PreferredStockRedemptionPricePerShare_DCE6AF958AE2CD170FF3414707613B51" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Redemption Price Per Share </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockRedemptionPricePerShare" xlink:label="loc_us-gaap_PreferredStockRedemptionPricePerShare_DCE6AF958AE2CD170FF3414707613B51" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_7B4C04E40DE72104C13B3BC14DD3CFBE_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_7B4C04E40DE72104C13B3BC14DD3CFBE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] </link:label>
<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_7B4C04E40DE72104C13B3BC14DD3CFBE_label_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_7B4C04E40DE72104C13B3BC14DD3CFBE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_7B4C04E40DE72104C13B3BC14DD3CFBE" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_361207C1817A77DFF0BB3BC14DD333A1_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_361207C1817A77DFF0BB3BC14DD333A1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] </link:label>
<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_361207C1817A77DFF0BB3BC14DD333A1_label_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_361207C1817A77DFF0BB3BC14DD333A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_361207C1817A77DFF0BB3BC14DD333A1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_399DAB6508997277A1D53BC14DD375DE_label_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_399DAB6508997277A1D53BC14DD375DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_399DAB6508997277A1D53BC14DD375DE" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_66AF9291ABDED038B90D3BC14DD37F93_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_66AF9291ABDED038B90D3BC14DD37F93" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue, remaining performance obligation, expected timing of satisfaction, period </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_66AF9291ABDED038B90D3BC14DD37F93" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligation_300694879B396878680C3BC14DD360F9_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligation_300694879B396878680C3BC14DD360F9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue, remaining performance obligation, amount </link:label>
<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligation_300694879B396878680C3BC14DD360F9_label_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligation_300694879B396878680C3BC14DD360F9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue, Remaining Performance Obligation, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligation" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_300694879B396878680C3BC14DD360F9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LossContingenciesLineItems_B155A5641F77F69831A0B88F97EF48CA_verboseLabel_en-US" xlink:label="lab_us-gaap_LossContingenciesLineItems_727AE719E21657868BE6652C6E4F3781" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Environmental Matters Details [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossContingenciesLineItems" xlink:label="loc_us-gaap_LossContingenciesLineItems_727AE719E21657868BE6652C6E4F3781" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossContingenciesLineItems_727AE719E21657868BE6652C6E4F3781" xlink:to="lab_us-gaap_LossContingenciesLineItems_727AE719E21657868BE6652C6E4F3781" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_92D2DC14BBCA69DBC328B88F97EF4C6A_terseLabel_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_65A9CA7344BD5647835E109D372191DE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrual for Environmental Loss Contingencies [Roll Forward] </link:label>
<link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_92D2DC14BBCA69DBC328B88F97EF4C6A_label_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_65A9CA7344BD5647835E109D372191DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrual for Environmental Loss Contingencies [Roll Forward] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesRollForward" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_65A9CA7344BD5647835E109D372191DE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_65A9CA7344BD5647835E109D372191DE" xlink:to="lab_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_65A9CA7344BD5647835E109D372191DE" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingencies_F78BC7283A3B0872E7D4B88F97EF41F9_periodStartLabel_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingencies_3F89DB5B712A5DDF93CE3E92111B663B" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Balance at beginning of period </link:label>
<link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingencies_F78BC7283A3B0872E7D4B88F97EF41F9_label_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingencies_3F89DB5B712A5DDF93CE3E92111B663B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrual for Environmental Loss Contingencies </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_3F89DB5B712A5DDF93CE3E92111B663B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingencies_3F89DB5B712A5DDF93CE3E92111B663B" xlink:to="lab_us-gaap_AccrualForEnvironmentalLossContingencies_3F89DB5B712A5DDF93CE3E92111B663B" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease_FB4E92268FD8DB7CCF33B88F97F033CF_terseLabel_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease_B463117F95DA5566AB1286A6DC5CC0F0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Provisions/adjustments </link:label>
<link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease_FB4E92268FD8DB7CCF33B88F97F033CF_label_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease_B463117F95DA5566AB1286A6DC5CC0F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrual for Environmental Loss Contingencies, Period Increase (Decrease) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease_B463117F95DA5566AB1286A6DC5CC0F0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease_B463117F95DA5566AB1286A6DC5CC0F0" xlink:to="lab_us-gaap_AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease_B463117F95DA5566AB1286A6DC5CC0F0" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_3A1AD73D7748FEE4D68DB88F97F02B60_negatedLabel_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_9C94203FBEDF5FF987D5D69EC3180B2D" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Cash reductions </link:label>
<link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_3A1AD73D7748FEE4D68DB88F97F02B60_label_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_9C94203FBEDF5FF987D5D69EC3180B2D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrual for Environmental Loss Contingencies, Payments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesPayments1" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_9C94203FBEDF5FF987D5D69EC3180B2D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_9C94203FBEDF5FF987D5D69EC3180B2D" xlink:to="lab_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_9C94203FBEDF5FF987D5D69EC3180B2D" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingencies_2E108958DE5B98B8B0C6B88F97F0E405_periodEndLabel_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingencies_48EBAE0CA4AE5D37B31CA671EBAA3328" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Balance at end of period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_48EBAE0CA4AE5D37B31CA671EBAA3328" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingencies_48EBAE0CA4AE5D37B31CA671EBAA3328" xlink:to="lab_us-gaap_AccrualForEnvironmentalLossContingencies_48EBAE0CA4AE5D37B31CA671EBAA3328" xlink:type="arc"/>
<link:label id="lab_us-gaap_EnvironmentalExitCostsReasonablyPossibleAdditionalLoss_134316826F3B9A96A133B88F97F05A9A_terseLabel_en-US" xlink:label="lab_us-gaap_EnvironmentalExitCostsReasonablyPossibleAdditionalLoss_F8300D5B1A0C56DE8414406FCB952366" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Environmental exit costs, reasonably possible additional loss </link:label>
<link:label id="lab_us-gaap_EnvironmentalExitCostsReasonablyPossibleAdditionalLoss_134316826F3B9A96A133B88F97F05A9A_label_en-US" xlink:label="lab_us-gaap_EnvironmentalExitCostsReasonablyPossibleAdditionalLoss_F8300D5B1A0C56DE8414406FCB952366" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Environmental Exit Costs, Reasonably Possible Additional Loss </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EnvironmentalExitCostsReasonablyPossibleAdditionalLoss" xlink:label="loc_us-gaap_EnvironmentalExitCostsReasonablyPossibleAdditionalLoss_F8300D5B1A0C56DE8414406FCB952366" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EnvironmentalExitCostsReasonablyPossibleAdditionalLoss_F8300D5B1A0C56DE8414406FCB952366" xlink:to="lab_us-gaap_EnvironmentalExitCostsReasonablyPossibleAdditionalLoss_F8300D5B1A0C56DE8414406FCB952366" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_DB0530A8D192525727EF3C6AAFEA8171_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_DB0530A8D192525727EF3C6AAFEA8171" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance Lease Liabilities, Payments, Due (Topic 842) </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_DB0530A8D192525727EF3C6AAFEA8171_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_DB0530A8D192525727EF3C6AAFEA8171" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payment, Due [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract" xlink:label="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_DB0530A8D192525727EF3C6AAFEA8171" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_DB0530A8D192525727EF3C6AAFEA8171" xlink:to="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_DB0530A8D192525727EF3C6AAFEA8171" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths_ABB69D8B167E7B135FEE3C6AAFEE644F_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths_ABB69D8B167E7B135FEE3C6AAFEE644F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2020 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths_ABB69D8B167E7B135FEE3C6AAFEE644F_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths_ABB69D8B167E7B135FEE3C6AAFEE644F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due in Next Rolling Twelve Months </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths_ABB69D8B167E7B135FEE3C6AAFEE644F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths_ABB69D8B167E7B135FEE3C6AAFEE644F" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths_ABB69D8B167E7B135FEE3C6AAFEE644F" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearTwo_AD935A7CECFE1AB38CDA3C6AAFEEF63B_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearTwo_AD935A7CECFE1AB38CDA3C6AAFEEF63B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2021 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearTwo_AD935A7CECFE1AB38CDA3C6AAFEEF63B_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearTwo_AD935A7CECFE1AB38CDA3C6AAFEEF63B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due in Rolling Year Two </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearTwo" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearTwo_AD935A7CECFE1AB38CDA3C6AAFEEF63B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearTwo_AD935A7CECFE1AB38CDA3C6AAFEEF63B" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearTwo_AD935A7CECFE1AB38CDA3C6AAFEEF63B" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearThree_3492A8914A59D256C1C43C6AAFEE31C8_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearThree_3492A8914A59D256C1C43C6AAFEE31C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2022 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearThree_3492A8914A59D256C1C43C6AAFEE31C8_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearThree_3492A8914A59D256C1C43C6AAFEE31C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due in Rolling Year Three </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearThree" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearThree_3492A8914A59D256C1C43C6AAFEE31C8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearThree_3492A8914A59D256C1C43C6AAFEE31C8" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearThree_3492A8914A59D256C1C43C6AAFEE31C8" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFour_EE2EB9B0659AF739407B3C6AAFEEAEE0_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFour_EE2EB9B0659AF739407B3C6AAFEEAEE0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2023 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFour_EE2EB9B0659AF739407B3C6AAFEEAEE0_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFour_EE2EB9B0659AF739407B3C6AAFEEAEE0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due in Rolling Year Four </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFour" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFour_EE2EB9B0659AF739407B3C6AAFEEAEE0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFour_EE2EB9B0659AF739407B3C6AAFEEAEE0" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFour_EE2EB9B0659AF739407B3C6AAFEEAEE0" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFive_55020E8D54650C9DA22C3C6AAFEED05C_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFive_55020E8D54650C9DA22C3C6AAFEED05C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2024 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFive_55020E8D54650C9DA22C3C6AAFEED05C_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFive_55020E8D54650C9DA22C3C6AAFEED05C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due in Rolling Year Five </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFive" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFive_55020E8D54650C9DA22C3C6AAFEED05C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFive_55020E8D54650C9DA22C3C6AAFEED05C" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingYearFive_55020E8D54650C9DA22C3C6AAFEED05C" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive_9F28F7B8BA1515AD3B0B3C6AAFEE701C_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive_9F28F7B8BA1515AD3B0B3C6AAFEE701C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Thereafter </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive_9F28F7B8BA1515AD3B0B3C6AAFEE701C_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive_9F28F7B8BA1515AD3B0B3C6AAFEE701C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due in Rolling after Year Five </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive_9F28F7B8BA1515AD3B0B3C6AAFEE701C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive_9F28F7B8BA1515AD3B0B3C6AAFEE701C" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive_9F28F7B8BA1515AD3B0B3C6AAFEE701C" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_6E2E43C8DF20817B94EC3C6AAFEE6041_totalLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_6E2E43C8DF20817B94EC3C6AAFEE6041" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total finance lease payments </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_6E2E43C8DF20817B94EC3C6AAFEE6041_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_6E2E43C8DF20817B94EC3C6AAFEE6041" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payment, Due </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_6E2E43C8DF20817B94EC3C6AAFEE6041" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_6E2E43C8DF20817B94EC3C6AAFEE6041" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_6E2E43C8DF20817B94EC3C6AAFEE6041" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_BE98F1CA6A78CDB7953A3C6AAFEE12AE_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_BE98F1CA6A78CDB7953A3C6AAFEE12AE" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Less: amounts representing interest </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_BE98F1CA6A78CDB7953A3C6AAFEE12AE_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_BE98F1CA6A78CDB7953A3C6AAFEE12AE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Undiscounted Excess Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_BE98F1CA6A78CDB7953A3C6AAFEE12AE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_BE98F1CA6A78CDB7953A3C6AAFEE12AE" xlink:to="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_BE98F1CA6A78CDB7953A3C6AAFEE12AE" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiability_95EA2E25F1077EF248463C6AAFEEC01F_verboseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiability_95EA2E25F1077EF248463C6AAFEEC01F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Total finance lease liabilities </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiability_95EA2E25F1077EF248463C6AAFEEC01F_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiability_95EA2E25F1077EF248463C6AAFEEC01F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiability" xlink:label="loc_us-gaap_FinanceLeaseLiability_95EA2E25F1077EF248463C6AAFEEC01F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiability_95EA2E25F1077EF248463C6AAFEEC01F" xlink:to="lab_us-gaap_FinanceLeaseLiability_95EA2E25F1077EF248463C6AAFEEC01F" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsNetPresentValueAbstract_E8A0D1533129D5462F713C6AAFEEF61C_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsNetPresentValueAbstract_E8A0D1533129D5462F713C6AAFEEF61C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance Lease Liabilities, Payments Due (Topic 840) </link:label>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsNetPresentValueAbstract_E8A0D1533129D5462F713C6AAFEEF61C_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsNetPresentValueAbstract_E8A0D1533129D5462F713C6AAFEEF61C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leases, Future Minimum Payments, Net Present Value [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsNetPresentValueAbstract" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsNetPresentValueAbstract_E8A0D1533129D5462F713C6AAFEEF61C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsNetPresentValueAbstract_E8A0D1533129D5462F713C6AAFEEF61C" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsNetPresentValueAbstract_E8A0D1533129D5462F713C6AAFEEF61C" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear_3D063079157F7D23A6CD3C6AAFEEDE43_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear_3D063079157F7D23A6CD3C6AAFEEDE43" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2019 </link:label>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear_3D063079157F7D23A6CD3C6AAFEEDE43_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear_3D063079157F7D23A6CD3C6AAFEEDE43" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leases, Future Minimum Payments, Remainder of Fiscal Year </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear_3D063079157F7D23A6CD3C6AAFEEDE43" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear_3D063079157F7D23A6CD3C6AAFEEDE43" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear_3D063079157F7D23A6CD3C6AAFEEDE43" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_BA2D7F5CE2D5449DDA913C6AAFEE1FFC_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_BA2D7F5CE2D5449DDA913C6AAFEE1FFC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2020 </link:label>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_BA2D7F5CE2D5449DDA913C6AAFEE1FFC_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_BA2D7F5CE2D5449DDA913C6AAFEE1FFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leases, Future Minimum Payments Due in Two Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_BA2D7F5CE2D5449DDA913C6AAFEE1FFC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_BA2D7F5CE2D5449DDA913C6AAFEE1FFC" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_BA2D7F5CE2D5449DDA913C6AAFEE1FFC" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_DB73CAFC24B62A59F5F33C6AAFEEF3D6_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_DB73CAFC24B62A59F5F33C6AAFEEF3D6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2021 </link:label>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_DB73CAFC24B62A59F5F33C6AAFEEF3D6_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_DB73CAFC24B62A59F5F33C6AAFEEF3D6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leases, Future Minimum Payments Due in Three Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_DB73CAFC24B62A59F5F33C6AAFEEF3D6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_DB73CAFC24B62A59F5F33C6AAFEEF3D6" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_DB73CAFC24B62A59F5F33C6AAFEEF3D6" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_DADB3432FD3CA8BB89CA3C6AAFEEB4FD_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_DADB3432FD3CA8BB89CA3C6AAFEEB4FD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2022 </link:label>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_DADB3432FD3CA8BB89CA3C6AAFEEB4FD_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_DADB3432FD3CA8BB89CA3C6AAFEEB4FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leases, Future Minimum Payments Due in Four Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_DADB3432FD3CA8BB89CA3C6AAFEEB4FD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_DADB3432FD3CA8BB89CA3C6AAFEEB4FD" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_DADB3432FD3CA8BB89CA3C6AAFEEB4FD" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_AF5A0CBA533D420E76C83C6AAFEE01C0_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_AF5A0CBA533D420E76C83C6AAFEE01C0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2023 </link:label>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_AF5A0CBA533D420E76C83C6AAFEE01C0_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_AF5A0CBA533D420E76C83C6AAFEE01C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leases, Future Minimum Payments Due in Five Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_AF5A0CBA533D420E76C83C6AAFEE01C0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_AF5A0CBA533D420E76C83C6AAFEE01C0" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_AF5A0CBA533D420E76C83C6AAFEE01C0" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_CEE057AC7A3B006291213C6AAFEE08D0_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_CEE057AC7A3B006291213C6AAFEE08D0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Thereafter </link:label>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_CEE057AC7A3B006291213C6AAFEE08D0_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_CEE057AC7A3B006291213C6AAFEE08D0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leases, Future Minimum Payments Due Thereafter </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_CEE057AC7A3B006291213C6AAFEE08D0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_CEE057AC7A3B006291213C6AAFEE08D0" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_CEE057AC7A3B006291213C6AAFEE08D0" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_9AD578ECF9F3AE2972863C6AAFEEC181_totalLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_9AD578ECF9F3AE2972863C6AAFEEC181" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Minimum annual payments </link:label>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_9AD578ECF9F3AE2972863C6AAFEEC181_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_9AD578ECF9F3AE2972863C6AAFEEC181" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leases, Future Minimum Payments Due </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_9AD578ECF9F3AE2972863C6AAFEEC181" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_9AD578ECF9F3AE2972863C6AAFEEC181" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_9AD578ECF9F3AE2972863C6AAFEEC181" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_390CCABA3DC242632C173C6AAFEE3934_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_390CCABA3DC242632C173C6AAFEE3934" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Less: amount representing interest </link:label>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_390CCABA3DC242632C173C6AAFEE3934_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_390CCABA3DC242632C173C6AAFEE3934" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leases, Future Minimum Payments, Interest Included in Payments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_390CCABA3DC242632C173C6AAFEE3934" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_390CCABA3DC242632C173C6AAFEE3934" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_390CCABA3DC242632C173C6AAFEE3934" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5A7C72D31B3703DA87DD3C6AAFEED039_totalLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5A7C72D31B3703DA87DD3C6AAFEED039" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total </link:label>
<link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5A7C72D31B3703DA87DD3C6AAFEED039_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5A7C72D31B3703DA87DD3C6AAFEED039" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5A7C72D31B3703DA87DD3C6AAFEED039" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5A7C72D31B3703DA87DD3C6AAFEED039" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5A7C72D31B3703DA87DD3C6AAFEED039" xlink:type="arc"/>
<link:label id="lab_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsTable_29E96F13EE7116DB4F8DB88F95396D2D_terseLabel_en-US" xlink:label="lab_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsTable_AA775935EED1590FA48ABE8D69E5B745" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule Of Available For Sale Securities And Other Trading Assets [Table] </link:label>
<link:label id="lab_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsTable_29E96F13EE7116DB4F8DB88F95396D2D_label_en-US" xlink:label="lab_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsTable_AA775935EED1590FA48ABE8D69E5B745" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule Of Available For Sale Securities And Other Trading Assets [Table] </link:label>
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<link:loc xlink:href="duk-20190930.xsd#duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsTable" xlink:label="loc_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsTable_AA775935EED1590FA48ABE8D69E5B745" xlink:type="locator"/>
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<link:label id="lab_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsLineItems_4AC0EB2D750A86504EA8B88F953B418E_terseLabel_en-US" xlink:label="lab_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsLineItems_BB352D88ED4956FB9CD139A9E28A4970" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule Of Available For Sale Securities And Other Trading Assets [Line Items] </link:label>
<link:label id="lab_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsLineItems_4AC0EB2D750A86504EA8B88F953B418E_label_en-US" xlink:label="lab_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsLineItems_BB352D88ED4956FB9CD139A9E28A4970" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule Of Available For Sale Securities And Other Trading Assets [Line Items] </link:label>
<link:label id="lab_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsLineItems_4AC0EB2D750A86504EA8B88F953B418E_documentation_en-US" xlink:label="lab_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsLineItems_BB352D88ED4956FB9CD139A9E28A4970" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> [Line Items] for Disclosure of information about investment in debt security measured at fair value with change in other comprehensive income and investment in equity security with change in fair value recognized in net income (FV-NI). </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsLineItems" xlink:label="loc_duk_ScheduleOfAvailableForSaleSecuritiesAndOtherTradingAssetsLineItems_BB352D88ED4956FB9CD139A9E28A4970" xlink:type="locator"/>
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<link:label id="lab_duk_FairValueMeasurementTransfersBetweenActivityLevels_8319E2D02830A3B15AAA1DA3CFC1E902_terseLabel_en-US" xlink:label="lab_duk_FairValueMeasurementTransfersBetweenActivityLevels_8319E2D02830A3B15AAA1DA3CFC1E902" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair value measurement, transfers between activity levels </link:label>
<link:label id="lab_duk_FairValueMeasurementTransfersBetweenActivityLevels_8319E2D02830A3B15AAA1DA3CFC1E902_label_en-US" xlink:label="lab_duk_FairValueMeasurementTransfersBetweenActivityLevels_8319E2D02830A3B15AAA1DA3CFC1E902" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Measurement Transfers Between Activity Levels </link:label>
<link:label id="lab_duk_FairValueMeasurementTransfersBetweenActivityLevels_8319E2D02830A3B15AAA1DA3CFC1E902_documentation_en-US" xlink:label="lab_duk_FairValueMeasurementTransfersBetweenActivityLevels_8319E2D02830A3B15AAA1DA3CFC1E902" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Transfers into and out of fair value hierarchy levels for assets or liabilities measured at fair value. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_FairValueMeasurementTransfersBetweenActivityLevels" xlink:label="loc_duk_FairValueMeasurementTransfersBetweenActivityLevels_8319E2D02830A3B15AAA1DA3CFC1E902" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationRollForward_2EEB7476D58D65D288AD1DA3CFC1BEFB_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationRollForward_2EEB7476D58D65D288AD1DA3CFC1BEFB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Derivatives (net) </link:label>
<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationRollForward_2EEB7476D58D65D288AD1DA3CFC1BEFB_label_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationRollForward_2EEB7476D58D65D288AD1DA3CFC1BEFB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationRollForward" xlink:label="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationRollForward_2EEB7476D58D65D288AD1DA3CFC1BEFB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_EC0FE6CBD5D10B7E053A1DA3CFC1DEF3_periodStartLabel_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_EC0FE6CBD5D10B7E053A1DA3CFC1DEF3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Balance at beginning of period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs" xlink:label="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_EC0FE6CBD5D10B7E053A1DA3CFC1DEF3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_EC0FE6CBD5D10B7E053A1DA3CFC1DEF3" xlink:to="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_EC0FE6CBD5D10B7E053A1DA3CFC1DEF3" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlementsAbstract_62F0AB48DFEB47A431B91DA3CFC30EBC_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlementsAbstract_62F0AB48DFEB47A431B91DA3CFC30EBC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Purchases, sales, issuances and settlements: </link:label>
<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlementsAbstract_62F0AB48DFEB47A431B91DA3CFC30EBC_label_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlementsAbstract_62F0AB48DFEB47A431B91DA3CFC30EBC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases, Sales, Issues, Settlements [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlementsAbstract" xlink:label="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlementsAbstract_62F0AB48DFEB47A431B91DA3CFC30EBC" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases_C3F1CF9BBE735D75D3331DA3CFC44A65_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases_C3F1CF9BBE735D75D3331DA3CFC44A65" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Purchases </link:label>
<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases_C3F1CF9BBE735D75D3331DA3CFC44A65_label_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases_C3F1CF9BBE735D75D3331DA3CFC44A65" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases" xlink:label="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases_C3F1CF9BBE735D75D3331DA3CFC44A65" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases_C3F1CF9BBE735D75D3331DA3CFC44A65" xlink:to="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases_C3F1CF9BBE735D75D3331DA3CFC44A65" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements_856614EBC2DAF215F7761DA3CFC4117F_negatedLabel_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements_856614EBC2DAF215F7761DA3CFC4117F" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Settlements </link:label>
<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements_856614EBC2DAF215F7761DA3CFC4117F_label_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements_856614EBC2DAF215F7761DA3CFC4117F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements" xlink:label="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements_856614EBC2DAF215F7761DA3CFC4117F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements_856614EBC2DAF215F7761DA3CFC4117F" xlink:to="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements_856614EBC2DAF215F7761DA3CFC4117F" xlink:type="arc"/>
<link:label id="lab_duk_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsDeferredGainsOrLossesAsRegulatoryAssetOrLiability_552A5DE418FAEA8F42701DA3CFC4DD43_terseLabel_en-US" xlink:label="lab_duk_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsDeferredGainsOrLossesAsRegulatoryAssetOrLiability_552A5DE418FAEA8F42701DA3CFC4DD43" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total (losses) gains included on the Condensed Consolidated Balance Sheet </link:label>
<link:label id="lab_duk_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsDeferredGainsOrLossesAsRegulatoryAssetOrLiability_552A5DE418FAEA8F42701DA3CFC4DD43_label_en-US" xlink:label="lab_duk_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsDeferredGainsOrLossesAsRegulatoryAssetOrLiability_552A5DE418FAEA8F42701DA3CFC4DD43" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Deferred Gains Or Losses As Regulatory Asset Or Liability </link:label>
<link:label id="lab_duk_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsDeferredGainsOrLossesAsRegulatoryAssetOrLiability_552A5DE418FAEA8F42701DA3CFC4DD43_documentation_en-US" xlink:label="lab_duk_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsDeferredGainsOrLossesAsRegulatoryAssetOrLiability_552A5DE418FAEA8F42701DA3CFC4DD43" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Total amount, including deferred gains or losses, recorded as regulatory assets and liabilities [net] measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsDeferredGainsOrLossesAsRegulatoryAssetOrLiability" xlink:label="loc_duk_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsDeferredGainsOrLossesAsRegulatoryAssetOrLiability_552A5DE418FAEA8F42701DA3CFC4DD43" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease_5639AA69A612BD96B31E1DA3CFC48965_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease_5639AA69A612BD96B31E1DA3CFC48965" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total gains (losses) and settlements </link:label>
<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease_5639AA69A612BD96B31E1DA3CFC48965_label_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease_5639AA69A612BD96B31E1DA3CFC48965" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease" xlink:label="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease_5639AA69A612BD96B31E1DA3CFC48965" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_C8FD54E3ABACC378B8F11DA3CFC4FD95_periodEndLabel_en-US" xlink:label="lab_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_C8FD54E3ABACC378B8F11DA3CFC4FD95" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Balance at end of period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs" xlink:label="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_C8FD54E3ABACC378B8F11DA3CFC4FD95" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccruedIncomeTaxesCurrent_D35E73A490425039E8D8B88F98D87E83_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedIncomeTaxesCurrent_33C70B59742857129CE7A70F7785353E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income tax payable </link:label>
<link:label id="lab_us-gaap_AccruedIncomeTaxesCurrent_D35E73A490425039E8D8B88F98D87E83_label_en-US" xlink:label="lab_us-gaap_AccruedIncomeTaxesCurrent_33C70B59742857129CE7A70F7785353E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Income Taxes, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_33C70B59742857129CE7A70F7785353E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PublicUtilitiesInventoryTable_4D3E20912C8EE614D35BB88F96B08B56_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryTable_CA3C21C29DBA532BA684EA847657F6F1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public Utilities, Inventory [Table] </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesInventoryTable_4D3E20912C8EE614D35BB88F96B08B56_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryTable_CA3C21C29DBA532BA684EA847657F6F1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Inventory [Table] </link:label>
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<link:label id="lab_us-gaap_PublicUtilitiesInventoryAxis_39FC388397DA5A2EDCCFB88F96B247DD_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryAxis_8BFF1425B341598C8A12DC99DC98D55B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Inventory [Axis] </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesInventoryAxis_39FC388397DA5A2EDCCFB88F96B247DD_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryAxis_8BFF1425B341598C8A12DC99DC98D55B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Inventory [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesInventoryAxis" xlink:label="loc_us-gaap_PublicUtilitiesInventoryAxis_8BFF1425B341598C8A12DC99DC98D55B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesInventoryAxis_8BFF1425B341598C8A12DC99DC98D55B" xlink:to="lab_us-gaap_PublicUtilitiesInventoryAxis_8BFF1425B341598C8A12DC99DC98D55B" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesInventoryTypeDomain_23F4D21DB3D29A0FE851B88F96B337A1_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryTypeDomain_28D5A12194825835912B2F2361C6B588" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Inventory [Domain] </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesInventoryTypeDomain_23F4D21DB3D29A0FE851B88F96B337A1_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryTypeDomain_28D5A12194825835912B2F2361C6B588" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Inventory [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesInventoryTypeDomain" xlink:label="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_28D5A12194825835912B2F2361C6B588" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_28D5A12194825835912B2F2361C6B588" xlink:to="lab_us-gaap_PublicUtilitiesInventoryTypeDomain_28D5A12194825835912B2F2361C6B588" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesInventorySuppliesMember_E76A4A9E420B0FC9CED3B88F96B365F5_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventorySuppliesMember_7744C57DD2295CBC860C25451485A886" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Materials and supplies [Member] </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesInventorySuppliesMember_E76A4A9E420B0FC9CED3B88F96B365F5_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventorySuppliesMember_7744C57DD2295CBC860C25451485A886" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Supplies [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesInventorySuppliesMember" xlink:label="loc_us-gaap_PublicUtilitiesInventorySuppliesMember_7744C57DD2295CBC860C25451485A886" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesInventorySuppliesMember_7744C57DD2295CBC860C25451485A886" xlink:to="lab_us-gaap_PublicUtilitiesInventorySuppliesMember_7744C57DD2295CBC860C25451485A886" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesInventoryCoalMember_3BCBC7AF0C1224656700B88F96B38466_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryCoalMember_D18408C2522751179EB84656707665D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Coal [Member] </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesInventoryCoalMember_3BCBC7AF0C1224656700B88F96B38466_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryCoalMember_D18408C2522751179EB84656707665D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Coal [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesInventoryCoalMember" xlink:label="loc_us-gaap_PublicUtilitiesInventoryCoalMember_D18408C2522751179EB84656707665D1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesInventoryCoalMember_D18408C2522751179EB84656707665D1" xlink:to="lab_us-gaap_PublicUtilitiesInventoryCoalMember_D18408C2522751179EB84656707665D1" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesInventoryFuelMember_A294435D3CC50FC34CC7B88F96B3B16A_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryFuelMember_AE2BD8C820015C4089B685AB16A7C665" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Natural gas, oil and other fuel [Member] </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesInventoryFuelMember_A294435D3CC50FC34CC7B88F96B3B16A_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryFuelMember_AE2BD8C820015C4089B685AB16A7C665" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Inventory, Fuel [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesInventoryFuelMember" xlink:label="loc_us-gaap_PublicUtilitiesInventoryFuelMember_AE2BD8C820015C4089B685AB16A7C665" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesInventoryFuelMember_AE2BD8C820015C4089B685AB16A7C665" xlink:to="lab_us-gaap_PublicUtilitiesInventoryFuelMember_AE2BD8C820015C4089B685AB16A7C665" xlink:type="arc"/>
<link:label id="lab_us-gaap_PublicUtilitiesInventoryLineItems_20E16C1D7EE4F2AAC173B88F96B305E5_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryLineItems_D60B84FA816E5D318C0EC2F9E3CC00FA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public Utilities, Inventory [Line Items] </link:label>
<link:label id="lab_us-gaap_PublicUtilitiesInventoryLineItems_20E16C1D7EE4F2AAC173B88F96B305E5_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryLineItems_D60B84FA816E5D318C0EC2F9E3CC00FA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utilities, Inventory [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PublicUtilitiesInventoryLineItems" xlink:label="loc_us-gaap_PublicUtilitiesInventoryLineItems_D60B84FA816E5D318C0EC2F9E3CC00FA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesInventoryLineItems_D60B84FA816E5D318C0EC2F9E3CC00FA" xlink:to="lab_us-gaap_PublicUtilitiesInventoryLineItems_D60B84FA816E5D318C0EC2F9E3CC00FA" xlink:type="arc"/>
<link:label id="lab_duk_ProceedsLoanedToSubsidiaryRegistrantsMember_A3A0BA972F3DB1B15B3AB88F96BA56B0_terseLabel_en-US" xlink:label="lab_duk_ProceedsLoanedToSubsidiaryRegistrantsMember_8186A74B051E519A8A89C6B8D6ED83C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds Loaned To Subsidiary Registrants [Member] </link:label>
<link:label id="lab_duk_ProceedsLoanedToSubsidiaryRegistrantsMember_A3A0BA972F3DB1B15B3AB88F96BA56B0_label_en-US" xlink:label="lab_duk_ProceedsLoanedToSubsidiaryRegistrantsMember_8186A74B051E519A8A89C6B8D6ED83C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds Loaned To Subsidiary Registrants [Member] </link:label>
<link:label id="lab_duk_ProceedsLoanedToSubsidiaryRegistrantsMember_A3A0BA972F3DB1B15B3AB88F96BA56B0_documentation_en-US" xlink:label="lab_duk_ProceedsLoanedToSubsidiaryRegistrantsMember_8186A74B051E519A8A89C6B8D6ED83C8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Proceeds Loaned To Subsidiary Registrants </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_ProceedsLoanedToSubsidiaryRegistrantsMember" xlink:label="loc_duk_ProceedsLoanedToSubsidiaryRegistrantsMember_8186A74B051E519A8A89C6B8D6ED83C8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_ProceedsLoanedToSubsidiaryRegistrantsMember_8186A74B051E519A8A89C6B8D6ED83C8" xlink:to="lab_duk_ProceedsLoanedToSubsidiaryRegistrantsMember_8186A74B051E519A8A89C6B8D6ED83C8" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongtermCommercialPaperCurrentAndNoncurrent_18981F1534E85AC515DAB88F96BFB696_negatedLabel_en-US" xlink:label="lab_us-gaap_LongtermCommercialPaperCurrentAndNoncurrent_C8CCB7AF044753E79AD3384DB1C0B2C9" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Commercial paper </link:label>
<link:label id="lab_us-gaap_LongtermCommercialPaperCurrentAndNoncurrent_18981F1534E85AC515DAB88F96BFB696_label_en-US" xlink:label="lab_us-gaap_LongtermCommercialPaperCurrentAndNoncurrent_C8CCB7AF044753E79AD3384DB1C0B2C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Commercial Paper </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermCommercialPaperCurrentAndNoncurrent" xlink:label="loc_us-gaap_LongtermCommercialPaperCurrentAndNoncurrent_C8CCB7AF044753E79AD3384DB1C0B2C9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermCommercialPaperCurrentAndNoncurrent_C8CCB7AF044753E79AD3384DB1C0B2C9" xlink:to="lab_us-gaap_LongtermCommercialPaperCurrentAndNoncurrent_C8CCB7AF044753E79AD3384DB1C0B2C9" xlink:type="arc"/>
<link:label id="lab_us-gaap_LettersOfCreditOutstandingAmount_D78D7E13D09DBB68C090B88F96C0357D_negatedLabel_en-US" xlink:label="lab_us-gaap_LettersOfCreditOutstandingAmount_F85FF4147C4555598EC2E7A61B92FAF7" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Outstanding letters of credit </link:label>
<link:label id="lab_us-gaap_LettersOfCreditOutstandingAmount_D78D7E13D09DBB68C090B88F96C0357D_label_en-US" xlink:label="lab_us-gaap_LettersOfCreditOutstandingAmount_F85FF4147C4555598EC2E7A61B92FAF7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Letters of Credit Outstanding, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_F85FF4147C4555598EC2E7A61B92FAF7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LettersOfCreditOutstandingAmount_F85FF4147C4555598EC2E7A61B92FAF7" xlink:to="lab_us-gaap_LettersOfCreditOutstandingAmount_F85FF4147C4555598EC2E7A61B92FAF7" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongtermPollutionControlBondCurrentAndNoncurrent_FBBA58F1BDAE19CAF0EFB88F96C0E53E_negatedLabel_en-US" xlink:label="lab_us-gaap_LongtermPollutionControlBondCurrentAndNoncurrent_E21919DF72C6590CBC6421A5D0D546F0" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Tax exempt bonds </link:label>
<link:label id="lab_us-gaap_LongtermPollutionControlBondCurrentAndNoncurrent_FBBA58F1BDAE19CAF0EFB88F96C0E53E_label_en-US" xlink:label="lab_us-gaap_LongtermPollutionControlBondCurrentAndNoncurrent_E21919DF72C6590CBC6421A5D0D546F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Pollution Control Bond </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermPollutionControlBondCurrentAndNoncurrent" xlink:label="loc_us-gaap_LongtermPollutionControlBondCurrentAndNoncurrent_E21919DF72C6590CBC6421A5D0D546F0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases_86FCF90108F030779EE3B88F96C0EAD1_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases_DEC13B466E2C5CB3B818C13D638B845D" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Coal ash set-aside </link:label>
<link:label id="lab_us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases_86FCF90108F030779EE3B88F96C0EAD1_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases_DEC13B466E2C5CB3B818C13D638B845D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases" xlink:label="loc_us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases_DEC13B466E2C5CB3B818C13D638B845D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_E4AE2514D86C5F910665B88F96C0A88E_verboseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_39F0A653163B51D594836A6DA3AE13C3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Available capacity </link:label>
<link:label id="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_E4AE2514D86C5F910665B88F96C0A88E_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_39F0A653163B51D594836A6DA3AE13C3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Remaining Borrowing Capacity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_39F0A653163B51D594836A6DA3AE13C3" xlink:type="locator"/>
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<link:label id="lab_duk_LesseeLeasesRightOfUseAssetsAbstract_F65803370C342B7C36EF3C6AAFDA6BC1_terseLabel_en-US" xlink:label="lab_duk_LesseeLeasesRightOfUseAssetsAbstract_F65803370C342B7C36EF3C6AAFDA6BC1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Assets </link:label>
<link:label id="lab_duk_LesseeLeasesRightOfUseAssetsAbstract_F65803370C342B7C36EF3C6AAFDA6BC1_label_en-US" xlink:label="lab_duk_LesseeLeasesRightOfUseAssetsAbstract_F65803370C342B7C36EF3C6AAFDA6BC1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Leases, Right Of Use Assets [Abstract] </link:label>
<link:label id="lab_duk_LesseeLeasesRightOfUseAssetsAbstract_F65803370C342B7C36EF3C6AAFDA6BC1_documentation_en-US" xlink:label="lab_duk_LesseeLeasesRightOfUseAssetsAbstract_F65803370C342B7C36EF3C6AAFDA6BC1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lessee, Leases, Right Of Use Assets [Abstract] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_LesseeLeasesRightOfUseAssetsAbstract" xlink:label="loc_duk_LesseeLeasesRightOfUseAssetsAbstract_F65803370C342B7C36EF3C6AAFDA6BC1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_7C0C6F1F72B1CCA232773C6AAFDA4D98_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_7C0C6F1F72B1CCA232773C6AAFDA4D98" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Operating </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_7C0C6F1F72B1CCA232773C6AAFDA4D98" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAsset_43C6C45A284EA7835C3C3C6AAFDA40B4_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAsset_43C6C45A284EA7835C3C3C6AAFDA40B4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance </link:label>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAsset_43C6C45A284EA7835C3C3C6AAFDA40B4_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAsset_43C6C45A284EA7835C3C3C6AAFDA40B4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Right-of-Use Asset </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAsset" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_43C6C45A284EA7835C3C3C6AAFDA40B4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAsset_43C6C45A284EA7835C3C3C6AAFDA40B4" xlink:to="lab_us-gaap_FinanceLeaseRightOfUseAsset_43C6C45A284EA7835C3C3C6AAFDA40B4" xlink:type="arc"/>
<link:label id="lab_duk_LeaseRightOfUseAssets_FC221C8FB3494E5A2B0E3C6AAFDA67B1_totalLabel_en-US" xlink:label="lab_duk_LeaseRightOfUseAssets_FC221C8FB3494E5A2B0E3C6AAFDA67B1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total lease assets </link:label>
<link:label id="lab_duk_LeaseRightOfUseAssets_FC221C8FB3494E5A2B0E3C6AAFDA67B1_label_en-US" xlink:label="lab_duk_LeaseRightOfUseAssets_FC221C8FB3494E5A2B0E3C6AAFDA67B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lease, Right Of Use Assets </link:label>
<link:label id="lab_duk_LeaseRightOfUseAssets_FC221C8FB3494E5A2B0E3C6AAFDA67B1_documentation_en-US" xlink:label="lab_duk_LeaseRightOfUseAssets_FC221C8FB3494E5A2B0E3C6AAFDA67B1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lease, Right Of Use Assets </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_LeaseRightOfUseAssets" xlink:label="loc_duk_LeaseRightOfUseAssets_FC221C8FB3494E5A2B0E3C6AAFDA67B1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_LeaseRightOfUseAssets_FC221C8FB3494E5A2B0E3C6AAFDA67B1" xlink:to="lab_duk_LeaseRightOfUseAssets_FC221C8FB3494E5A2B0E3C6AAFDA67B1" xlink:type="arc"/>
<link:label id="lab_duk_LesseeLeasesLiabilityAbstract_D3D0CD8585657E3BD38B3C6AAFDA9BD6_terseLabel_en-US" xlink:label="lab_duk_LesseeLeasesLiabilityAbstract_D3D0CD8585657E3BD38B3C6AAFDA9BD6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Liabilities </link:label>
<link:label id="lab_duk_LesseeLeasesLiabilityAbstract_D3D0CD8585657E3BD38B3C6AAFDA9BD6_label_en-US" xlink:label="lab_duk_LesseeLeasesLiabilityAbstract_D3D0CD8585657E3BD38B3C6AAFDA9BD6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Leases, Liability [Abstract] </link:label>
<link:label id="lab_duk_LesseeLeasesLiabilityAbstract_D3D0CD8585657E3BD38B3C6AAFDA9BD6_documentation_en-US" xlink:label="lab_duk_LesseeLeasesLiabilityAbstract_D3D0CD8585657E3BD38B3C6AAFDA9BD6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lessee, Leases, Liability [Abstract] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_LesseeLeasesLiabilityAbstract" xlink:label="loc_duk_LesseeLeasesLiabilityAbstract_D3D0CD8585657E3BD38B3C6AAFDA9BD6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_LesseeLeasesLiabilityAbstract_D3D0CD8585657E3BD38B3C6AAFDA9BD6" xlink:to="lab_duk_LesseeLeasesLiabilityAbstract_D3D0CD8585657E3BD38B3C6AAFDA9BD6" xlink:type="arc"/>
<link:label id="lab_duk_LesseeLeasesCurrentLiabilitiesAbstract_FD6A267A5B9F0EBF6DD43C6AAFDAAF41_terseLabel_en-US" xlink:label="lab_duk_LesseeLeasesCurrentLiabilitiesAbstract_FD6A267A5B9F0EBF6DD43C6AAFDAAF41" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current </link:label>
<link:label id="lab_duk_LesseeLeasesCurrentLiabilitiesAbstract_FD6A267A5B9F0EBF6DD43C6AAFDAAF41_label_en-US" xlink:label="lab_duk_LesseeLeasesCurrentLiabilitiesAbstract_FD6A267A5B9F0EBF6DD43C6AAFDAAF41" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Leases, Current Liabilities [Abstract] </link:label>
<link:label id="lab_duk_LesseeLeasesCurrentLiabilitiesAbstract_FD6A267A5B9F0EBF6DD43C6AAFDAAF41_documentation_en-US" xlink:label="lab_duk_LesseeLeasesCurrentLiabilitiesAbstract_FD6A267A5B9F0EBF6DD43C6AAFDAAF41" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lessee, Leases, Current Liabilities [Abstract] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_LesseeLeasesCurrentLiabilitiesAbstract" xlink:label="loc_duk_LesseeLeasesCurrentLiabilitiesAbstract_FD6A267A5B9F0EBF6DD43C6AAFDAAF41" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_LesseeLeasesCurrentLiabilitiesAbstract_FD6A267A5B9F0EBF6DD43C6AAFDAAF41" xlink:to="lab_duk_LesseeLeasesCurrentLiabilitiesAbstract_FD6A267A5B9F0EBF6DD43C6AAFDAAF41" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_7319D11A3FF3CD7CDE1A3C6AAFDAA418_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_7319D11A3FF3CD7CDE1A3C6AAFDAA418" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Operating </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_7319D11A3FF3CD7CDE1A3C6AAFDAA418" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityCurrent_7319D11A3FF3CD7CDE1A3C6AAFDAA418" xlink:to="lab_us-gaap_OperatingLeaseLiabilityCurrent_7319D11A3FF3CD7CDE1A3C6AAFDAA418" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityCurrent_48C49929B9F2898C48D03C6AAFDAF0DC_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityCurrent_48C49929B9F2898C48D03C6AAFDAF0DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityCurrent_48C49929B9F2898C48D03C6AAFDAF0DC_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityCurrent_48C49929B9F2898C48D03C6AAFDAF0DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityCurrent" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_48C49929B9F2898C48D03C6AAFDAF0DC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityCurrent_48C49929B9F2898C48D03C6AAFDAF0DC" xlink:to="lab_us-gaap_FinanceLeaseLiabilityCurrent_48C49929B9F2898C48D03C6AAFDAF0DC" xlink:type="arc"/>
<link:label id="lab_duk_LesseeLeasesNoncurrentLiabilitiesAbstract_339A63954F8ADC406B173C6AAFDA1408_terseLabel_en-US" xlink:label="lab_duk_LesseeLeasesNoncurrentLiabilitiesAbstract_339A63954F8ADC406B173C6AAFDA1408" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Noncurrent </link:label>
<link:label id="lab_duk_LesseeLeasesNoncurrentLiabilitiesAbstract_339A63954F8ADC406B173C6AAFDA1408_label_en-US" xlink:label="lab_duk_LesseeLeasesNoncurrentLiabilitiesAbstract_339A63954F8ADC406B173C6AAFDA1408" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Leases, Noncurrent Liabilities [Abstract] </link:label>
<link:label id="lab_duk_LesseeLeasesNoncurrentLiabilitiesAbstract_339A63954F8ADC406B173C6AAFDA1408_documentation_en-US" xlink:label="lab_duk_LesseeLeasesNoncurrentLiabilitiesAbstract_339A63954F8ADC406B173C6AAFDA1408" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lessee, Leases, Noncurrent Liabilities [Abstract] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_LesseeLeasesNoncurrentLiabilitiesAbstract" xlink:label="loc_duk_LesseeLeasesNoncurrentLiabilitiesAbstract_339A63954F8ADC406B173C6AAFDA1408" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_LesseeLeasesNoncurrentLiabilitiesAbstract_339A63954F8ADC406B173C6AAFDA1408" xlink:to="lab_duk_LesseeLeasesNoncurrentLiabilitiesAbstract_339A63954F8ADC406B173C6AAFDA1408" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_D95F1AF7C97F8D53F22C3C6AAFDA61AD_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_D95F1AF7C97F8D53F22C3C6AAFDA61AD" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Operating </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_D95F1AF7C97F8D53F22C3C6AAFDA61AD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_D95F1AF7C97F8D53F22C3C6AAFDA61AD" xlink:to="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_D95F1AF7C97F8D53F22C3C6AAFDA61AD" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityNoncurrent_E61A3CF180034D1BC6973C6AAFDE2AF2_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityNoncurrent_E61A3CF180034D1BC6973C6AAFDE2AF2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityNoncurrent_E61A3CF180034D1BC6973C6AAFDE2AF2_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityNoncurrent_E61A3CF180034D1BC6973C6AAFDE2AF2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_E61A3CF180034D1BC6973C6AAFDE2AF2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_E61A3CF180034D1BC6973C6AAFDE2AF2" xlink:to="lab_us-gaap_FinanceLeaseLiabilityNoncurrent_E61A3CF180034D1BC6973C6AAFDE2AF2" xlink:type="arc"/>
<link:label id="lab_duk_LeaseLiability_59E051F39CD8B03F542F3C6AAFDEDF7B_totalLabel_en-US" xlink:label="lab_duk_LeaseLiability_59E051F39CD8B03F542F3C6AAFDEDF7B" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total lease liabilities </link:label>
<link:label id="lab_duk_LeaseLiability_59E051F39CD8B03F542F3C6AAFDEDF7B_label_en-US" xlink:label="lab_duk_LeaseLiability_59E051F39CD8B03F542F3C6AAFDEDF7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lease Liability </link:label>
<link:label id="lab_duk_LeaseLiability_59E051F39CD8B03F542F3C6AAFDEDF7B_documentation_en-US" xlink:label="lab_duk_LeaseLiability_59E051F39CD8B03F542F3C6AAFDEDF7B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lease Liability </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_LeaseLiability" xlink:label="loc_duk_LeaseLiability_59E051F39CD8B03F542F3C6AAFDEDF7B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_LeaseLiability_59E051F39CD8B03F542F3C6AAFDEDF7B" xlink:to="lab_duk_LeaseLiability_59E051F39CD8B03F542F3C6AAFDEDF7B" xlink:type="arc"/>
<link:label id="lab_duk_CashFlowLeasingActivitiesAbstract_79459BB663BBB334E3423C6AAFDE4909_terseLabel_en-US" xlink:label="lab_duk_CashFlowLeasingActivitiesAbstract_79459BB663BBB334E3423C6AAFDE4909" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash paid for amounts included in the measurement of lease liabilities(a) </link:label>
<link:label id="lab_duk_CashFlowLeasingActivitiesAbstract_79459BB663BBB334E3423C6AAFDE4909_label_en-US" xlink:label="lab_duk_CashFlowLeasingActivitiesAbstract_79459BB663BBB334E3423C6AAFDE4909" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash Flow, Leasing Activities [Abstract] </link:label>
<link:label id="lab_duk_CashFlowLeasingActivitiesAbstract_79459BB663BBB334E3423C6AAFDE4909_documentation_en-US" xlink:label="lab_duk_CashFlowLeasingActivitiesAbstract_79459BB663BBB334E3423C6AAFDE4909" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Cash Flow, Leasing Activities [Abstract] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_CashFlowLeasingActivitiesAbstract" xlink:label="loc_duk_CashFlowLeasingActivitiesAbstract_79459BB663BBB334E3423C6AAFDE4909" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_CashFlowLeasingActivitiesAbstract_79459BB663BBB334E3423C6AAFDE4909" xlink:to="lab_duk_CashFlowLeasingActivitiesAbstract_79459BB663BBB334E3423C6AAFDE4909" xlink:type="arc"/>
<link:label id="lab_duk_LesseeRightOfUseAssetsAcquiredInPeriodAbstract_8BC92F86AF661506723F3C6AAFDE8789_terseLabel_en-US" xlink:label="lab_duk_LesseeRightOfUseAssetsAcquiredInPeriodAbstract_8BC92F86AF661506723F3C6AAFDE8789" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lease assets obtained in exchange for new lease liabilities (non-cash) </link:label>
<link:label id="lab_duk_LesseeRightOfUseAssetsAcquiredInPeriodAbstract_8BC92F86AF661506723F3C6AAFDE8789_label_en-US" xlink:label="lab_duk_LesseeRightOfUseAssetsAcquiredInPeriodAbstract_8BC92F86AF661506723F3C6AAFDE8789" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Right Of Use Assets, Acquired In Period [Abstract] </link:label>
<link:label id="lab_duk_LesseeRightOfUseAssetsAcquiredInPeriodAbstract_8BC92F86AF661506723F3C6AAFDE8789_documentation_en-US" xlink:label="lab_duk_LesseeRightOfUseAssetsAcquiredInPeriodAbstract_8BC92F86AF661506723F3C6AAFDE8789" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lessee, Right Of Use Assets, Acquired In Period [Abstract] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_LesseeRightOfUseAssetsAcquiredInPeriodAbstract" xlink:label="loc_duk_LesseeRightOfUseAssetsAcquiredInPeriodAbstract_8BC92F86AF661506723F3C6AAFDE8789" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_LesseeRightOfUseAssetsAcquiredInPeriodAbstract_8BC92F86AF661506723F3C6AAFDE8789" xlink:to="lab_duk_LesseeRightOfUseAssetsAcquiredInPeriodAbstract_8BC92F86AF661506723F3C6AAFDE8789" xlink:type="arc"/>
<link:label id="lab_duk_WeightedAverageRemainingLeaseTermAbstract_F6D394347BBF4CEA0DDF3C6AAFDE7296_terseLabel_en-US" xlink:label="lab_duk_WeightedAverageRemainingLeaseTermAbstract_F6D394347BBF4CEA0DDF3C6AAFDE7296" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted-average remaining lease term (years) </link:label>
<link:label id="lab_duk_WeightedAverageRemainingLeaseTermAbstract_F6D394347BBF4CEA0DDF3C6AAFDE7296_label_en-US" xlink:label="lab_duk_WeightedAverageRemainingLeaseTermAbstract_F6D394347BBF4CEA0DDF3C6AAFDE7296" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weighted-Average Remaining Lease Term [Abstract] </link:label>
<link:label id="lab_duk_WeightedAverageRemainingLeaseTermAbstract_F6D394347BBF4CEA0DDF3C6AAFDE7296_documentation_en-US" xlink:label="lab_duk_WeightedAverageRemainingLeaseTermAbstract_F6D394347BBF4CEA0DDF3C6AAFDE7296" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Weighted-Average Remaining Lease Term [Abstract] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_WeightedAverageRemainingLeaseTermAbstract" xlink:label="loc_duk_WeightedAverageRemainingLeaseTermAbstract_F6D394347BBF4CEA0DDF3C6AAFDE7296" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_WeightedAverageRemainingLeaseTermAbstract_F6D394347BBF4CEA0DDF3C6AAFDE7296" xlink:to="lab_duk_WeightedAverageRemainingLeaseTermAbstract_F6D394347BBF4CEA0DDF3C6AAFDE7296" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_80A97F4EDB2CF2B991633C6AAFDE21C8_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_80A97F4EDB2CF2B991633C6AAFDE21C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases </link:label>
<link:label id="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_80A97F4EDB2CF2B991633C6AAFDE21C8_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_80A97F4EDB2CF2B991633C6AAFDE21C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Weighted Average Remaining Lease Term </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_80A97F4EDB2CF2B991633C6AAFDE21C8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_80A97F4EDB2CF2B991633C6AAFDE21C8" xlink:to="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_80A97F4EDB2CF2B991633C6AAFDE21C8" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_6CA8BE7BEDE2B8F738753C6AAFDE5BC9_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_6CA8BE7BEDE2B8F738753C6AAFDE5BC9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance leases </link:label>
<link:label id="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_6CA8BE7BEDE2B8F738753C6AAFDE5BC9_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_6CA8BE7BEDE2B8F738753C6AAFDE5BC9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Weighted Average Remaining Lease Term </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1" xlink:label="loc_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_6CA8BE7BEDE2B8F738753C6AAFDE5BC9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_6CA8BE7BEDE2B8F738753C6AAFDE5BC9" xlink:to="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_6CA8BE7BEDE2B8F738753C6AAFDE5BC9" xlink:type="arc"/>
<link:label id="lab_duk_WeightedAverageDiscountRateAbstract_E3DA8C407D3D918B56303C6AAFDEF853_terseLabel_en-US" xlink:label="lab_duk_WeightedAverageDiscountRateAbstract_E3DA8C407D3D918B56303C6AAFDEF853" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted-average discount rate </link:label>
<link:label id="lab_duk_WeightedAverageDiscountRateAbstract_E3DA8C407D3D918B56303C6AAFDEF853_label_en-US" xlink:label="lab_duk_WeightedAverageDiscountRateAbstract_E3DA8C407D3D918B56303C6AAFDEF853" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weighted-Average Discount Rate [Abstract] </link:label>
<link:label id="lab_duk_WeightedAverageDiscountRateAbstract_E3DA8C407D3D918B56303C6AAFDEF853_documentation_en-US" xlink:label="lab_duk_WeightedAverageDiscountRateAbstract_E3DA8C407D3D918B56303C6AAFDEF853" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Weighted-Average Discount Rate [Abstract] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_WeightedAverageDiscountRateAbstract" xlink:label="loc_duk_WeightedAverageDiscountRateAbstract_E3DA8C407D3D918B56303C6AAFDEF853" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_WeightedAverageDiscountRateAbstract_E3DA8C407D3D918B56303C6AAFDEF853" xlink:to="lab_duk_WeightedAverageDiscountRateAbstract_E3DA8C407D3D918B56303C6AAFDEF853" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_D71D5F49D193A6A2BB293C6AAFDE59E3_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_D71D5F49D193A6A2BB293C6AAFDE59E3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases </link:label>
<link:label id="lab_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_D71D5F49D193A6A2BB293C6AAFDE59E3_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_D71D5F49D193A6A2BB293C6AAFDE59E3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Weighted Average Discount Rate, Percent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_D71D5F49D193A6A2BB293C6AAFDE59E3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_D71D5F49D193A6A2BB293C6AAFDE59E3" xlink:to="lab_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_D71D5F49D193A6A2BB293C6AAFDE59E3" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_CC09BE33E1F837E890D43C6AAFDE8B02_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_CC09BE33E1F837E890D43C6AAFDE8B02" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance leases </link:label>
<link:label id="lab_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_CC09BE33E1F837E890D43C6AAFDE8B02_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_CC09BE33E1F837E890D43C6AAFDE8B02" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Weighted Average Discount Rate, Percent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent" xlink:label="loc_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_CC09BE33E1F837E890D43C6AAFDE8B02" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_CC09BE33E1F837E890D43C6AAFDE8B02" xlink:to="lab_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_CC09BE33E1F837E890D43C6AAFDE8B02" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetRetirementObligationLegallyRestrictedAssetsFairValue_25E3041856690AD70A86B88F95B8BACB_terseLabel_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationLegallyRestrictedAssetsFairValue_EAF8E89A16035F958A53535645FBA264" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Legally restricted NDTF investments, fair value </link:label>
<link:label id="lab_us-gaap_AssetRetirementObligationLegallyRestrictedAssetsFairValue_25E3041856690AD70A86B88F95B8BACB_label_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationLegallyRestrictedAssetsFairValue_EAF8E89A16035F958A53535645FBA264" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligation, Legally Restricted Assets, Fair Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetRetirementObligationLegallyRestrictedAssetsFairValue" xlink:label="loc_us-gaap_AssetRetirementObligationLegallyRestrictedAssetsFairValue_EAF8E89A16035F958A53535645FBA264" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetRetirementObligationLegallyRestrictedAssetsFairValue_EAF8E89A16035F958A53535645FBA264" xlink:to="lab_us-gaap_AssetRetirementObligationLegallyRestrictedAssetsFairValue_EAF8E89A16035F958A53535645FBA264" xlink:type="arc"/>
<link:label id="lab_duk_FinancingReceivableSales_E0545F7B149C8EA3A2C21B0E26173F70_terseLabel_en-US" xlink:label="lab_duk_FinancingReceivableSales_714629A400BD5ACD881BC514E4F9721B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Receivables sold </link:label>
<link:label id="lab_duk_FinancingReceivableSales_E0545F7B149C8EA3A2C21B0E26173F70_label_en-US" xlink:label="lab_duk_FinancingReceivableSales_714629A400BD5ACD881BC514E4F9721B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Financing Receivable Sales </link:label>
<link:label id="lab_duk_FinancingReceivableSales_E0545F7B149C8EA3A2C21B0E26173F70_documentation_en-US" xlink:label="lab_duk_FinancingReceivableSales_714629A400BD5ACD881BC514E4F9721B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The amount of any sales of receivables during the reporting period. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_FinancingReceivableSales" xlink:label="loc_duk_FinancingReceivableSales_714629A400BD5ACD881BC514E4F9721B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_FinancingReceivableSales_714629A400BD5ACD881BC514E4F9721B" xlink:to="lab_duk_FinancingReceivableSales_714629A400BD5ACD881BC514E4F9721B" xlink:type="arc"/>
<link:label id="lab_us-gaap_GainLossOnSaleOfAccountsReceivable_23CC78A7B80ED50DE9E71B0E26185438_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfAccountsReceivable_4E1AEBD8A0495CF9998BA680AB07481A" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Loss recognized on sale </link:label>
<link:label id="lab_us-gaap_GainLossOnSaleOfAccountsReceivable_23CC78A7B80ED50DE9E71B0E26185438_label_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfAccountsReceivable_4E1AEBD8A0495CF9998BA680AB07481A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Gain (Loss) on Sale of Accounts Receivable </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainLossOnSaleOfAccountsReceivable" xlink:label="loc_us-gaap_GainLossOnSaleOfAccountsReceivable_4E1AEBD8A0495CF9998BA680AB07481A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers_B070041DBB054FBA5AA21B0E2618C56A_verboseLabel_en-US" xlink:label="lab_us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers_17B69881CBB25D26A1E163DC08C69CDB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Cash proceeds from receivables sold </link:label>
<link:label id="lab_us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers_B070041DBB054FBA5AA21B0E2618C56A_label_en-US" xlink:label="lab_us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers_17B69881CBB25D26A1E163DC08C69CDB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash Flows Between Transferor and Transferee, Proceeds from New Transfers </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers" xlink:label="loc_us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers_17B69881CBB25D26A1E163DC08C69CDB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers_17B69881CBB25D26A1E163DC08C69CDB" xlink:to="lab_us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers_17B69881CBB25D26A1E163DC08C69CDB" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFees_7504B10236478EBD58251B7A1221CBDA_terseLabel_en-US" xlink:label="lab_us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFees_E1C2533D9B33581C823F913A8CAB0903" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Collection fees received </link:label>
<link:label id="lab_us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFees_7504B10236478EBD58251B7A1221CBDA_label_en-US" xlink:label="lab_us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFees_E1C2533D9B33581C823F913A8CAB0903" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash Flows Between Transferor and Transferee, Servicing Fees </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFees" xlink:label="loc_us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFees_E1C2533D9B33581C823F913A8CAB0903" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFees_E1C2533D9B33581C823F913A8CAB0903" xlink:to="lab_us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFees_E1C2533D9B33581C823F913A8CAB0903" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables_3BE12DAE7ED815473E391B0E26186FF7_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables_6E3D163A8C405EC8BCBB9A016692D4C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Return received on retained interests </link:label>
<link:label id="lab_us-gaap_ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables_3BE12DAE7ED815473E391B0E26186FF7_label_en-US" xlink:label="lab_us-gaap_ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables_6E3D163A8C405EC8BCBB9A016692D4C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Collection of Retained Interest in Securitized Receivables </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables" xlink:label="loc_us-gaap_ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables_6E3D163A8C405EC8BCBB9A016692D4C8" xlink:type="locator"/>
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<link:label id="lab_duk_TermLoanMember_94CDF055F6BC655BA5B8142D8DA79A62_terseLabel_en-US" xlink:label="lab_duk_TermLoanMember_94CDF055F6BC655BA5B8142D8DA79A62" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Term Loan [Member] </link:label>
<link:label id="lab_duk_TermLoanMember_94CDF055F6BC655BA5B8142D8DA79A62_label_en-US" xlink:label="lab_duk_TermLoanMember_94CDF055F6BC655BA5B8142D8DA79A62" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Term Loan [Member] </link:label>
<link:label id="lab_duk_TermLoanMember_94CDF055F6BC655BA5B8142D8DA79A62_documentation_en-US" xlink:label="lab_duk_TermLoanMember_94CDF055F6BC655BA5B8142D8DA79A62" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Term Loan [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_TermLoanMember" xlink:label="loc_duk_TermLoanMember_94CDF055F6BC655BA5B8142D8DA79A62" xlink:type="locator"/>
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<link:label id="lab_srt_LitigationCaseTypeDomain_8FA49866B6AE233053E8142D8DAEAD3D_terseLabel_en-US" xlink:label="lab_srt_LitigationCaseTypeDomain_8FA49866B6AE233053E8142D8DAEAD3D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Litigation Case [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_LitigationCaseTypeDomain" xlink:label="loc_srt_LitigationCaseTypeDomain_8FA49866B6AE233053E8142D8DAEAD3D" xlink:type="locator"/>
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<link:label id="lab_duk_USDOJMember_924D7D9A70BEB8566139142D8DAE747A_terseLabel_en-US" xlink:label="lab_duk_USDOJMember_924D7D9A70BEB8566139142D8DAE747A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> USDOJ [Member] </link:label>
<link:label id="lab_duk_USDOJMember_924D7D9A70BEB8566139142D8DAE747A_label_en-US" xlink:label="lab_duk_USDOJMember_924D7D9A70BEB8566139142D8DAE747A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> USDOJ [Member] </link:label>
<link:label id="lab_duk_USDOJMember_924D7D9A70BEB8566139142D8DAE747A_documentation_en-US" xlink:label="lab_duk_USDOJMember_924D7D9A70BEB8566139142D8DAE747A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> United States Department of Justice [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_USDOJMember" xlink:label="loc_duk_USDOJMember_924D7D9A70BEB8566139142D8DAE747A" xlink:type="locator"/>
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<link:label id="lab_duk_NorthCarolinaAshBasinsMember_714C5F7A88EF39FE01D6142D8DAF9BE6_terseLabel_en-US" xlink:label="lab_duk_NorthCarolinaAshBasinsMember_714C5F7A88EF39FE01D6142D8DAF9BE6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> North Carolina Ash Basins [Member] </link:label>
<link:label id="lab_duk_NorthCarolinaAshBasinsMember_714C5F7A88EF39FE01D6142D8DAF9BE6_label_en-US" xlink:label="lab_duk_NorthCarolinaAshBasinsMember_714C5F7A88EF39FE01D6142D8DAF9BE6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> North Carolina Ash Basins [Member] </link:label>
<link:label id="lab_duk_NorthCarolinaAshBasinsMember_714C5F7A88EF39FE01D6142D8DAF9BE6_documentation_en-US" xlink:label="lab_duk_NorthCarolinaAshBasinsMember_714C5F7A88EF39FE01D6142D8DAF9BE6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> North Carolina Ash Basins </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_NorthCarolinaAshBasinsMember" xlink:label="loc_duk_NorthCarolinaAshBasinsMember_714C5F7A88EF39FE01D6142D8DAF9BE6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RepaymentsOfDebt_1BBD7265D4B07388CD0E142D8DB19F53_terseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfDebt_1BBD7265D4B07388CD0E142D8DB19F53" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Repayments of Debt </link:label>
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<link:label id="lab_duk_MinimumMasterCreditFacilityBalanceRequired_F90457DAFEF16C88A64B142D8DB2DEE3_label_en-US" xlink:label="lab_duk_MinimumMasterCreditFacilityBalanceRequired_F90457DAFEF16C88A64B142D8DB2DEE3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Minimum Master Credit Facility Balance Required </link:label>
<link:label id="lab_duk_MinimumMasterCreditFacilityBalanceRequired_F90457DAFEF16C88A64B142D8DB2DEE3_documentation_en-US" xlink:label="lab_duk_MinimumMasterCreditFacilityBalanceRequired_F90457DAFEF16C88A64B142D8DB2DEE3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Minimum Master Credit Facility Balance Required to be maintained to meet obligations outlined in Plea Agreements </link:label>
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<link:label id="lab_us-gaap_LineOfCredit_8C4B0DEA3DCFAE1EBD07142D8DB2F602_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCredit_8C4B0DEA3DCFAE1EBD07142D8DB2F602" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Outstanding balance </link:label>
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<link:label id="lab_us-gaap_OffsettingAssetsTable_742E9F8C51876FF244D0B88F98F43669_terseLabel_en-US" xlink:label="lab_us-gaap_OffsettingAssetsTable_9E0529D3B97651A4B78A8B42886FD6AA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Offsetting Assets [Table] </link:label>
<link:label id="lab_us-gaap_OffsettingAssetsTable_742E9F8C51876FF244D0B88F98F43669_label_en-US" xlink:label="lab_us-gaap_OffsettingAssetsTable_9E0529D3B97651A4B78A8B42886FD6AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Offsetting Assets [Table] </link:label>
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<link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_64AFB65D6FF0FB2BC1A6B88F98F8D48F_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_F4374F3FCD0951F6B7704E297554CF6D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Gross amounts recognized </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_F4374F3FCD0951F6B7704E297554CF6D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DerivativeAssetFairValueGrossLiability_000D7CB33F1F8C100242B88F98F81795_label_en-US" xlink:label="lab_us-gaap_DerivativeAssetFairValueGrossLiability_4140045131905C54BDFD2D6D2C59621B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative Asset, Fair Value, Gross Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeAssetFairValueGrossLiability" xlink:label="loc_us-gaap_DerivativeAssetFairValueGrossLiability_4140045131905C54BDFD2D6D2C59621B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DerivativeAssets_051FE09EFEB589BD9B02B88F98F80570_totalLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssets_5E7224F903C25B19A2FD7A2E06E33F91" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net amounts recognized on the Condensed Consolidated Balance Sheet </link:label>
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<link:label id="lab_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_789FD9D306C36592894AB88F97E308E9_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_A38A89E788A75C92B71430CE62B54D64" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Summary of Effective Tax Rates </link:label>
<link:label id="lab_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_789FD9D306C36592894AB88F97E308E9_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_A38A89E788A75C92B71430CE62B54D64" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_SegmentReportingDisclosureTextBlock_0486384F1745C2D10693DF4F85B47EFC_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingDisclosureTextBlock_0486384F1745C2D10693DF4F85B47EFC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Business Segments </link:label>
<link:label id="lab_us-gaap_SegmentReportingDisclosureTextBlock_0486384F1745C2D10693DF4F85B47EFC_label_en-US" xlink:label="lab_us-gaap_SegmentReportingDisclosureTextBlock_0486384F1745C2D10693DF4F85B47EFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segment Reporting Disclosure [Text Block] </link:label>
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<link:label id="lab_us-gaap_LesseeOperatingLeasesTextBlock_E67708B8B522709083B837298126BEC8_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeasesTextBlock_E67708B8B522709083B837298126BEC8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Leases </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeasesTextBlock_E67708B8B522709083B837298126BEC8_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeasesTextBlock_E67708B8B522709083B837298126BEC8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Leases [Text Block] </link:label>
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<link:label id="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssets_915210D3342986FAA040B88F97E046A4_totalLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssets_3FA35C7405CD5B338B4E6822132B5DB1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total assets </link:label>
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<link:label id="lab_us-gaap_TaxesPayableCurrent_40263E75EBED2EC80C07B88F97E04622_terseLabel_en-US" xlink:label="lab_us-gaap_TaxesPayableCurrent_2CA8294D50B553D8B8B33B4FC3F5DC8F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Taxes accrued </link:label>
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<link:label id="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountLiabilities_C6FB921F34617E289F72B88F97E10CD5_totalLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountLiabilities_878D2404481D5403921EF50B58E317C9" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total liabilities </link:label>
<link:label id="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountLiabilities_C6FB921F34617E289F72B88F97E10CD5_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountLiabilities_878D2404481D5403921EF50B58E317C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountLiabilities" xlink:label="loc_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountLiabilities_878D2404481D5403921EF50B58E317C9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountLiabilities_878D2404481D5403921EF50B58E317C9" xlink:to="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountLiabilities_878D2404481D5403921EF50B58E317C9" xlink:type="arc"/>
<link:label id="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet_8B450EC909B4E4157617B88F97E1A512_totalLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet_C1E93CE20DD35D7D9E0E2EEC768E5AD1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net assets </link:label>
<link:label id="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet_8B450EC909B4E4157617B88F97E1A512_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet_C1E93CE20DD35D7D9E0E2EEC768E5AD1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet" xlink:label="loc_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet_C1E93CE20DD35D7D9E0E2EEC768E5AD1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet_C1E93CE20DD35D7D9E0E2EEC768E5AD1" xlink:to="lab_us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet_C1E93CE20DD35D7D9E0E2EEC768E5AD1" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessAcquisitionAxis_C173D4BD85C0F7756333B88F98413E17_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis_8FAF886E0C7C50A78988DCC52D0B5FB1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Business Acquisition [Axis] </link:label>
<link:label id="lab_us-gaap_BusinessAcquisitionAxis_C173D4BD85C0F7756333B88F98413E17_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis_8FAF886E0C7C50A78988DCC52D0B5FB1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_8FAF886E0C7C50A78988DCC52D0B5FB1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_8FAF886E0C7C50A78988DCC52D0B5FB1" xlink:to="lab_us-gaap_BusinessAcquisitionAxis_8FAF886E0C7C50A78988DCC52D0B5FB1" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_DA59AF156C4E0D1FDA0AB88F9841D220_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain_928854C49DCB5D14B9D23854F4CDABE2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Acquiree [Domain] </link:label>
<link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_DA59AF156C4E0D1FDA0AB88F9841D220_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain_928854C49DCB5D14B9D23854F4CDABE2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Acquiree [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_928854C49DCB5D14B9D23854F4CDABE2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_928854C49DCB5D14B9D23854F4CDABE2" xlink:to="lab_us-gaap_BusinessAcquisitionAcquireeDomain_928854C49DCB5D14B9D23854F4CDABE2" xlink:type="arc"/>
<link:label id="lab_duk_PiedmontNaturalGasAndProgressEnergyMember_CBB105582C5DC5FFC373B88F984133E2_terseLabel_en-US" xlink:label="lab_duk_PiedmontNaturalGasAndProgressEnergyMember_B109413FBF0C52C7823CDFE029BA992A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Piedmont Natural Gas and Progress Energy [Member] </link:label>
<link:label id="lab_duk_PiedmontNaturalGasAndProgressEnergyMember_CBB105582C5DC5FFC373B88F984133E2_label_en-US" xlink:label="lab_duk_PiedmontNaturalGasAndProgressEnergyMember_B109413FBF0C52C7823CDFE029BA992A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Piedmont Natural Gas And Progress Energy [Member] </link:label>
<link:label id="lab_duk_PiedmontNaturalGasAndProgressEnergyMember_CBB105582C5DC5FFC373B88F984133E2_documentation_en-US" xlink:label="lab_duk_PiedmontNaturalGasAndProgressEnergyMember_B109413FBF0C52C7823CDFE029BA992A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Piedmont Natural Gas and Progress Energy [Member] </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PiedmontNaturalGasAndProgressEnergyMember" xlink:label="loc_duk_PiedmontNaturalGasAndProgressEnergyMember_B109413FBF0C52C7823CDFE029BA992A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PiedmontNaturalGasAndProgressEnergyMember_B109413FBF0C52C7823CDFE029BA992A" xlink:to="lab_duk_PiedmontNaturalGasAndProgressEnergyMember_B109413FBF0C52C7823CDFE029BA992A" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebt_29FE4822077CDF188266B88F98411069_verboseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebt_544F4B60AA2C567785A37D2B0C4E6434" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Long-term debt, book value </link:label>
<link:label id="lab_us-gaap_LongTermDebt_29FE4822077CDF188266B88F98411069_label_en-US" xlink:label="lab_us-gaap_LongTermDebt_544F4B60AA2C567785A37D2B0C4E6434" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_544F4B60AA2C567785A37D2B0C4E6434" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebt_544F4B60AA2C567785A37D2B0C4E6434" xlink:to="lab_us-gaap_LongTermDebt_544F4B60AA2C567785A37D2B0C4E6434" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtFairValue_20E5E8E7BD099A2692CAB88F9842CFDB_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue_5B7258FE4F5F50439716B9398B82FB1B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term debt, fair value </link:label>
<link:label id="lab_us-gaap_LongTermDebtFairValue_20E5E8E7BD099A2692CAB88F9842CFDB_label_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue_5B7258FE4F5F50439716B9398B82FB1B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Fair Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtFairValue" xlink:label="loc_us-gaap_LongTermDebtFairValue_5B7258FE4F5F50439716B9398B82FB1B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtFairValue_5B7258FE4F5F50439716B9398B82FB1B" xlink:to="lab_us-gaap_LongTermDebtFairValue_5B7258FE4F5F50439716B9398B82FB1B" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_D3502506CD972E83E8D8B88F9842A457_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_DD8AC03DB7D75D79B593E7904CDC97AC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Unamortized debt discount (premium), net </link:label>
<link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_D3502506CD972E83E8D8B88F9842A457_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_DD8AC03DB7D75D79B593E7904CDC97AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Unamortized Discount (Premium), Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_DD8AC03DB7D75D79B593E7904CDC97AC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_DD8AC03DB7D75D79B593E7904CDC97AC" xlink:to="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_DD8AC03DB7D75D79B593E7904CDC97AC" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock_F278AAC7105C0675142795BF1161D068_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock_F278AAC7105C0675142795BF1161D068" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Potential Plant Retirements </link:label>
<link:label id="lab_us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock_F278AAC7105C0675142795BF1161D068_label_en-US" xlink:label="lab_us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock_F278AAC7105C0675142795BF1161D068" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Public Utility Property, Plant, and Equipment [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock_F278AAC7105C0675142795BF1161D068" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock_F278AAC7105C0675142795BF1161D068" xlink:to="lab_us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock_F278AAC7105C0675142795BF1161D068" xlink:type="arc"/>
<link:label id="lab_duk_SignificantAccountingPoliciesRegistrantsTable_01E619F0BBFE0B6ECF073E65E7CC748B_terseLabel_en-US" xlink:label="lab_duk_SignificantAccountingPoliciesRegistrantsTable_672B50A7658856EE8B3F27A34256204F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Significant Accounting Policies Registrants [Table] </link:label>
<link:label id="lab_duk_SignificantAccountingPoliciesRegistrantsTable_01E619F0BBFE0B6ECF073E65E7CC748B_label_en-US" xlink:label="lab_duk_SignificantAccountingPoliciesRegistrantsTable_672B50A7658856EE8B3F27A34256204F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Significant Accounting Policies Registrants [Table] </link:label>
<link:label id="lab_duk_SignificantAccountingPoliciesRegistrantsTable_01E619F0BBFE0B6ECF073E65E7CC748B_documentation_en-US" xlink:label="lab_duk_SignificantAccountingPoliciesRegistrantsTable_672B50A7658856EE8B3F27A34256204F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Presents significant accounting policies information by registrant. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_SignificantAccountingPoliciesRegistrantsTable" xlink:label="loc_duk_SignificantAccountingPoliciesRegistrantsTable_672B50A7658856EE8B3F27A34256204F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_SignificantAccountingPoliciesRegistrantsTable_672B50A7658856EE8B3F27A34256204F" xlink:to="lab_duk_SignificantAccountingPoliciesRegistrantsTable_672B50A7658856EE8B3F27A34256204F" xlink:type="arc"/>
<link:label id="lab_duk_PolicyTextBlockLineItems_048E3C266235415225EB3E65E7CD5577_terseLabel_en-US" xlink:label="lab_duk_PolicyTextBlockLineItems_7205F1EF98D05E49A7AB8CBCD61C8752" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Policy Text Block [Line Items] </link:label>
<link:label id="lab_duk_PolicyTextBlockLineItems_048E3C266235415225EB3E65E7CD5577_label_en-US" xlink:label="lab_duk_PolicyTextBlockLineItems_7205F1EF98D05E49A7AB8CBCD61C8752" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Policy Text Block [Line Items] </link:label>
<link:label id="lab_duk_PolicyTextBlockLineItems_048E3C266235415225EB3E65E7CD5577_documentation_en-US" xlink:label="lab_duk_PolicyTextBlockLineItems_7205F1EF98D05E49A7AB8CBCD61C8752" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. </link:label>
<link:loc xlink:href="duk-20190930.xsd#duk_PolicyTextBlockLineItems" xlink:label="loc_duk_PolicyTextBlockLineItems_7205F1EF98D05E49A7AB8CBCD61C8752" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_duk_PolicyTextBlockLineItems_7205F1EF98D05E49A7AB8CBCD61C8752" xlink:to="lab_duk_PolicyTextBlockLineItems_7205F1EF98D05E49A7AB8CBCD61C8752" xlink:type="arc"/>
<link:label id="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_5704136C0F516B1522893E65E7CE1D20_terseLabel_en-US" xlink:label="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_BB8DF21AD3BE54149E7FCDF19FED1EAF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Basis of Presentation </link:label>
<link:label id="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_5704136C0F516B1522893E65E7CE1D20_label_en-US" xlink:label="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_BB8DF21AD3BE54149E7FCDF19FED1EAF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Basis of Accounting, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_BB8DF21AD3BE54149E7FCDF19FED1EAF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_BB8DF21AD3BE54149E7FCDF19FED1EAF" xlink:to="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_BB8DF21AD3BE54149E7FCDF19FED1EAF" xlink:type="arc"/>
<link:label id="lab_us-gaap_ConsolidationPolicyTextBlock_A4AEFA661E885B1071433E65E7CE3FD4_terseLabel_en-US" xlink:label="lab_us-gaap_ConsolidationPolicyTextBlock_0DA9133690065F91B9C2DDA5C875CDDA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Basis of Consolidation and Noncontrolling Interest </link:label>
<link:label id="lab_us-gaap_ConsolidationPolicyTextBlock_A4AEFA661E885B1071433E65E7CE3FD4_label_en-US" xlink:label="lab_us-gaap_ConsolidationPolicyTextBlock_0DA9133690065F91B9C2DDA5C875CDDA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Consolidation, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_0DA9133690065F91B9C2DDA5C875CDDA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConsolidationPolicyTextBlock_0DA9133690065F91B9C2DDA5C875CDDA" xlink:to="lab_us-gaap_ConsolidationPolicyTextBlock_0DA9133690065F91B9C2DDA5C875CDDA" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_726B726D12F1CDA9CB3F3E65E7CE16F6_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_F0E2C5F865F353788870D93C508CCCB6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash, Cash Equivalents, and Restricted Cash </link:label>
<link:label id="lab_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_726B726D12F1CDA9CB3F3E65E7CE16F6_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_F0E2C5F865F353788870D93C508CCCB6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:label="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_F0E2C5F865F353788870D93C508CCCB6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_F0E2C5F865F353788870D93C508CCCB6" xlink:to="lab_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_F0E2C5F865F353788870D93C508CCCB6" xlink:type="arc"/>
<link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_2ABEE2885A0AD6D934343E65E7CED309_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_10E8243F3BC35F95B176526761D15123" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> New Accounting Standards </link:label>
<link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_2ABEE2885A0AD6D934343E65E7CED309_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_10E8243F3BC35F95B176526761D15123" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> New Accounting Pronouncements, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_10E8243F3BC35F95B176526761D15123" xlink:type="locator"/>
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<link:label id="lab_us-gaap_EnvironmentalCostsPolicy_5CE5695BC9F81E7C9DCA3E65E7CEB1F8_terseLabel_en-US" xlink:label="lab_us-gaap_EnvironmentalCostsPolicy_737C449345765129B276525BF6448014" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Environmental Costs </link:label>
<link:label id="lab_us-gaap_EnvironmentalCostsPolicy_5CE5695BC9F81E7C9DCA3E65E7CEB1F8_label_en-US" xlink:label="lab_us-gaap_EnvironmentalCostsPolicy_737C449345765129B276525BF6448014" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Environmental Costs, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EnvironmentalCostsPolicy" xlink:label="loc_us-gaap_EnvironmentalCostsPolicy_737C449345765129B276525BF6448014" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EnvironmentalCostsPolicy_737C449345765129B276525BF6448014" xlink:to="lab_us-gaap_EnvironmentalCostsPolicy_737C449345765129B276525BF6448014" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativesPolicyTextBlock_4480F1A91EE1B485A0E13E65E7CF54D7_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativesPolicyTextBlock_1145DC91582F581E9E81C27C1625E447" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Derivatives </link:label>
<link:label id="lab_us-gaap_DerivativesPolicyTextBlock_4480F1A91EE1B485A0E13E65E7CF54D7_label_en-US" xlink:label="lab_us-gaap_DerivativesPolicyTextBlock_1145DC91582F581E9E81C27C1625E447" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivatives, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativesPolicyTextBlock" xlink:label="loc_us-gaap_DerivativesPolicyTextBlock_1145DC91582F581E9E81C27C1625E447" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativesPolicyTextBlock_1145DC91582F581E9E81C27C1625E447" xlink:to="lab_us-gaap_DerivativesPolicyTextBlock_1145DC91582F581E9E81C27C1625E447" xlink:type="arc"/>
<link:label id="lab_us-gaap_InvestmentPolicyTextBlock_B0B7247C9CF8E512A8933E65E7CFF714_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentPolicyTextBlock_19F2185027B45A349130557BB195A9AE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Investments </link:label>
<link:label id="lab_us-gaap_InvestmentPolicyTextBlock_B0B7247C9CF8E512A8933E65E7CFF714_label_en-US" xlink:label="lab_us-gaap_InvestmentPolicyTextBlock_19F2185027B45A349130557BB195A9AE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Investment, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InvestmentPolicyTextBlock" xlink:label="loc_us-gaap_InvestmentPolicyTextBlock_19F2185027B45A349130557BB195A9AE" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_A650EDC36D2C01EEC9F83E65E7CF64A0_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_4B9D2A478D405668ACDB1354766F1922" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue from Contract with Customer </link:label>
<link:label id="lab_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_A650EDC36D2C01EEC9F83E65E7CF64A0_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_4B9D2A478D405668ACDB1354766F1922" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue from Contract with Customer [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerPolicyTextBlock" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_4B9D2A478D405668ACDB1354766F1922" xlink:type="locator"/>
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<link:label id="lab_us-gaap_EarningsPerSharePolicyTextBlock_FF59BF19689A6277CCDD3E65E7CF4749_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerSharePolicyTextBlock_6AA443C7C92E5469B4B9AEDEEFC618C6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Earnings Per Share </link:label>
<link:label id="lab_us-gaap_EarningsPerSharePolicyTextBlock_FF59BF19689A6277CCDD3E65E7CF4749_label_en-US" xlink:label="lab_us-gaap_EarningsPerSharePolicyTextBlock_6AA443C7C92E5469B4B9AEDEEFC618C6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Earnings Per Share, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock_6AA443C7C92E5469B4B9AEDEEFC618C6" xlink:type="locator"/>
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