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Exelon Corp, et al. – ‘10-Q’ for 9/30/19 – ‘EX-101.PRE’

On:  Thursday, 10/31/19, at 12:34pm ET   ·   For:  9/30/19   ·   Accession #:  1109357-19-112   ·   File #s:  0-16844, 1-01072, 1-01405, 1-01839, 1-01910, 1-03559, 1-16169, 1-31403, 333-85496

Previous ‘10-Q’:  ‘10-Q’ on 8/1/19 for 6/30/19   ·   Next:  ‘10-Q’ on 5/8/20 for 3/31/20   ·   Latest:  ‘10-Q’ on 11/2/23 for 9/30/23   ·   4 References:   

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

10/31/19  Exelon Corp                       10-Q        9/30/19  161:61M
          Peco Energy Co
          Potomac Electric Power Co
          Delmarva Power & Light Co/DE
          Commonwealth Edison Co
          Baltimore Gas & Electric Co
          Atlantic City Electric Co
          Pepco Holdings LLC
          Exelon Generation Co LLC

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   9.82M 
 2: EX-3.1      Articles of Incorporation/Organization or Bylaws    HTML     73K 
 3: EX-10.1     Material Contract                                   HTML     75K 
 4: EX-10.2     Material Contract                                   HTML     62K 
 5: EX-10.3     Material Contract                                   HTML     75K 
 6: EX-10.4     Material Contract                                   HTML     78K 
 7: EX-10.5     Material Contract                                   HTML     81K 
 8: EX-31.1     Certification Filed by Christopher M. Crane for     HTML     53K 
                Exelon Corporation                                               
17: EX-31.10    Certification Filed by David M. Vahos for           HTML     53K 
                Baltimore Gas and Electric Company                               
18: EX-31.11    Certification Filed by David M. Velazquez for       HTML     53K 
                Pepco Holdings LLC                                               
19: EX-31.12    Certification Filed by Phillip S. Barnett for       HTML     53K 
                Pepco Holdings LLC                                               
20: EX-31.13    Certification Filed by David M. Velazquez for       HTML     53K 
                Potomac Electric Power Company                                   
21: EX-31.14    Certification Filed by Phillip S. Barnett for       HTML     53K 
                Potomac Electric Power Company                                   
22: EX-31.15    Certification Filed by David M. Velazquez for       HTML     53K 
                Delmarva Power & Light Company                                   
23: EX-31.16    Certification Filed by Phillip S. Barnett for       HTML     53K 
                Delmarva Power & Light Company                                   
24: EX-31.17    Certification Filed by David M. Velazquez for       HTML     53K 
                Atlantic City Electric Company                                   
25: EX-31.18    Certification Filed by Phillip S. Barnett for       HTML     53K 
                Atlantic City Electric Company                                   
 9: EX-31.2     Certification Filed by Joseph Nigro for Exelon      HTML     53K 
                Corporation                                                      
10: EX-31.3     Certification Filed by Kenneth W. Cornew for        HTML     53K 
                Exelon Generation Company, LLC                                   
11: EX-31.4     Certification Filed by Bryan P. Wright for Exelon   HTML     53K 
                Generation Company, LLC                                          
12: EX-31.5     Certification Filed by Joseph Dominguez for         HTML     53K 
                Commonwealth Edison Company                                      
13: EX-31.6     Certification Filed by Jeanne M. Jones for          HTML     53K 
                Commonwealth Edison Company                                      
14: EX-31.7     Certification Filed by Michael A. Innocenzo for     HTML     53K 
                Peco Energy Company                                              
15: EX-31.8     Certification Filed by Robert J. Stefani for Peco   HTML     53K 
                Energy Company                                                   
16: EX-31.9     Certification Filed by Calvin G. Butler, Jr. for    HTML     53K 
                Baltimore Gas and Electric Co                                    
26: EX-32.1     Certification Filed by Christopher M. Crane for     HTML     48K 
                Exelon Corporation                                               
35: EX-32.10    Certification Filed by David M. Vahos for           HTML     48K 
                Baltimore Gas and Electric Company                               
36: EX-32.11    Certification Filed by David M. Velazquez for       HTML     48K 
                Pepco Holdings LLC                                               
37: EX-32.12    Certification Filed by Phillip S. Barnett for       HTML     48K 
                Pepco Holdings LLC                                               
38: EX-32.13    Certification Filed by David M. Velazquez for       HTML     48K 
                Potomac Electric Power Company                                   
39: EX-32.14    Certification Filed by Phillip S. Barnett for       HTML     48K 
                Potomac Electric Power Company                                   
40: EX-32.15    Certification Filed by David M. Velazquez for       HTML     48K 
                Delmarva Power & Light Company                                   
41: EX-32.16    Certification Filed by Phillip S. Barnett for       HTML     48K 
                Delmarva Power & Light Company                                   
42: EX-32.17    Certification Filed by David M. Velazquez for       HTML     48K 
                Atlantic City Electric Company                                   
43: EX-32.18    Certification Filed by Phillip S. Barnett for       HTML     48K 
                Atlantic City Electric Company                                   
27: EX-32.2     Certification Filed by Joseph Nigro for Exelon      HTML     48K 
                Corporation                                                      
28: EX-32.3     Certification Filed by Kenneth W. Cornew for        HTML     48K 
                Exelon Generation Company, LLC                                   
29: EX-32.4     Certification Filed by Bryan P. Wright for Exelon   HTML     48K 
                Generation Company, LLC                                          
30: EX-32.5     Certification Filed by Joseph Dominguez for         HTML     48K 
                Commonwealth Edison Company                                      
31: EX-32.6     Certification Filed by Jeanne M. Jones for          HTML     48K 
                Commonwealth Edison Company                                      
32: EX-32.7     Certification Filed by Michael A. Innocenzo for     HTML     48K 
                Peco Energy Company                                              
33: EX-32.8     Certification Filed by Robert J. Stefani for Peco   HTML     48K 
                Energy Company                                                   
34: EX-32.9     Certification Filed by Calvin G. Butler, Jr. for    HTML     48K 
                Baltimore Gas and Electric Co                                    
121: R1          Cover Page                                          HTML    149K  
52: R2          Consolidated Statements of Operations and           HTML    323K 
                Comprehensive Income (Unaudited)                                 
94: R3          Consolidated Statements of Cash Flows (Unaudited)   HTML    272K 
133: R4          Consolidated Balance Sheets (Unaudited)             HTML    466K  
120: R5          Consolidated Balance Sheets (Unaudited)             HTML     81K  
                (Parenthetical)                                                  
51: R6          Consolidated Statements of Changes in Shareholders  HTML    325K 
                Equity (Unaudited)                                               
93: R7          Consolidated Statements of Changes in Shareholders  HTML     50K 
                Equity (Unaudited) (Parenthetical)                               
134: R8          Significant Accounting Policies                     HTML     92K  
119: R9          Variable Interest Entities (Exelon, Generation,     HTML    261K  
                PHI and ACE)                                                     
88: R10         Mergers, Acquisitions and Dispositions (Exelon and  HTML     57K 
                Generation)                                                      
74: R11         Revenue from Contracts with Customers (All          HTML     93K 
                Registrants)                                                     
111: R12         Leases (All Registrants)                            HTML    481K  
153: R13         Regulatory Matters (All Registrants)                HTML    179K  
89: R14         Asset Impairments (Exelon and Generation)           HTML     55K 
75: R15         Early Plant Retirements (Exelon and Generation)     HTML     92K 
112: R16         Fair Value of Financial Assets and Liabilities      HTML   1.52M  
                (All Registrants)                                                
155: R17         Derivative Financial Instruments (All Registrants)  HTML    250K  
90: R18         Debt and Credit Agreements (All Registrants)        HTML    116K 
73: R19         Income Taxes (All Registrants)                      HTML    297K 
123: R20         Nuclear Decommissioning (Exelon and Generation)     HTML     69K  
135: R21         Retirement Benefits (All Registrants)               HTML    173K  
91: R22         Changes in Accumulated Other Comprehensive Income   HTML    173K 
                (Exelon)                                                         
49: R23         Commitments and Contingencies (All Registrants)     HTML    365K 
124: R24         Supplemental Financial Information (All             HTML    877K  
                Registrants)                                                     
136: R25         Segment Information (All Registrants)               HTML   1.47M  
92: R26         Significant Accounting Policies (Policies)          HTML     77K 
50: R27         Variable Interest Entities (Tables)                 HTML    237K 
122: R28         Revenue from Contracts with Customers (Tables)      HTML     89K  
138: R29         Leases (Tables)                                     HTML    428K  
161: R30         Regulatory Matters (Tables)                         HTML    140K  
114: R31         Early Plant Retirements (Tables)                    HTML     83K  
72: R32         Fair Value of Financial Assets and Liabilities      HTML   1.53M 
                (Tables)                                                         
85: R33         Derivative Financial Instruments (Tables)           HTML    222K 
160: R34         Debt and Credit Agreements (Tables)                 HTML    112K  
113: R35         Income Taxes (Tables)                               HTML    301K  
71: R36         Nuclear Decommissioning (Tables)                    HTML     57K 
84: R37         Retirement Benefits (Tables)                        HTML    174K 
156: R38         Changes in Accumulated Other Comprehensive Income   HTML    174K  
                (Tables)                                                         
115: R39         Commitments and Contingencies (Tables)              HTML    334K  
141: R40         Supplemental Financial Information (Tables)         HTML    883K  
126: R41         Segment Information (Tables)                        HTML   1.47M  
60: R42         Variable Interest Entities - Narrative (Details)    HTML     67K 
102: R43         Variable Interest Entities - Assets and             HTML    238K  
                Liabilities of VIES which Creditors or                           
                Beneficiaries have no Recourse (Details)                         
140: R44         Variable Interest Entities - Summary of             HTML     81K  
                Significant Unconsolidated VIEs (Details)                        
125: R45         Mergers, Acquisitions and Dispositions -            HTML     55K  
                Acquisitions Narrative (Details)                                 
59: R46         Mergers, Acquisitions and Dispositions -            HTML     86K 
                Dispositions Narrative (Details)                                 
101: R47         Revenue from Contracts with Customers - Change in   HTML     68K  
                Contract with Customer, Asset and Liability                      
                (Details)                                                        
139: R48         Revenue from Contracts with Customers -             HTML     70K  
                Performance Obligations (Details)                                
127: R49         Leases Lessee - Narrative (Details)                 HTML    110K  
105: R50         Leases Lessee - Components of Lease Cost (Details)  HTML     96K  
146: R51         Leases Lessee - Supplemental Balance Sheet          HTML    119K  
                Information Related to Lessee Right-of-Use Assets                
                and Lease Liabilities (Details)                                  
82: R52         Leases Lessee - Future Minimum Operating Lease      HTML    101K 
                Maturity Payments (Details)                                      
67: R53         Leases Lessee - 2018 Schedule of Minimum Future     HTML    107K 
                Operating Lease Payments (Details)                               
106: R54         Leases Lessee - Supplemental Cash Flow Information  HTML     71K  
                Related to Leases (Details)                                      
147: R55         Leases Lessor - Narrative (Details)                 HTML     95K  
83: R56         Leases Lessor - Components of Operating Lease       HTML     71K 
                Income (Details)                                                 
68: R57         Leases Lessor - Future Minimum Operating Lease      HTML     93K 
                Maturity Payments (Details)                                      
103: R58         Regulatory Matters - Narrative (Details)            HTML    199K  
148: R59         Regulatory Matters Schedule of Completed Rate       HTML     99K  
                Cases (Details) (Details)                                        
95: R60         Regulatory Matters Schedule of Pending Rate Cases   HTML    103K 
                (Details) (Details)                                              
55: R61         Regulatory Matters - Annual Electric Transmission   HTML     84K 
                Fillings (Details)                                               
128: R62         Regulatory Matters Energy Efficiency Formula Rate   HTML     67K  
                (Details)                                                        
142: R63         Regulatory Matters - Capitalized Ratemaking Amount  HTML     65K  
                Not Recognized (Details)                                         
98: R64         Asset Impairments - Narrative (Details)             HTML     87K 
58: R65         Early Plant Retirements - Narrative (Details)       HTML     52K 
131: R66         Early Plant Retirements - Pretax Expense (Details)  HTML     66K  
145: R67         Early Plant Retirements - Implications of           HTML     68K  
                Potential Early Plant Retirement on Balance Sheet                
                (Details)                                                        
99: R68         Fair Value of Financial Assets and Liabilities -    HTML     67K 
                Narrative (Details)                                              
53: R69         Fair Value of Financial Assets and Liabilities -    HTML    136K 
                Fair Value of Financial Liabilities Recorded at                  
                Amortized Cost (Details)                                         
64: R70         Fair Value of Financial Assets and Liabilities -    HTML    714K 
                Fair Value Measurements of Assets and Liabilities,               
                Recurring and Nonrecurring (Details)                             
81: R71         Fair Value of Financial Assets and Liabilities -    HTML    156K 
                Fair Value Assets Liabilities Measured On                        
                Recurring Basis Unobservable Input Reconciliation                
                (Details)                                                        
152: R72         Fair Value of Financial Assets and Liabilities -    HTML     82K  
                Fair Value Assets And Liabilities Measured On                    
                Recurring Basis Gain Loss Included In Earnings                   
                (Details)                                                        
110: R73         Fair Value of Financial Assets and Liabilities -    HTML    109K  
                Fair Value Inputs Assets Quantitative Information                
                (Details)                                                        
61: R74         Derivative Financial Instruments - Summary of       HTML    105K 
                Derivative Fair Value Balances (Details)                         
78: R75         Derivative Financial Instruments - Summary of       HTML     61K 
                Economic Hedges (Details)                                        
149: R76         Derivative Financial Instruments - Summary of       HTML     83K  
                Credit Risk Exposure (Details)                                   
107: R77         Derivative Financial Instruments - Summary of       HTML     57K  
                Credit Risk Related Contingent Features (Details)                
66: R78         Derivative Financial Instruments - Narrative        HTML    101K 
                (Details)                                                        
77: R79         Derivative Financial Instruments Derivative         HTML     66K 
                Financial Instruments - Summary of Cash Collateral               
                and Letters of Credit (Details)                                  
63: R80         Debt and Credit Agreements - Narrative (Details)    HTML     72K 
80: R81         Debt and Credit Agreements - Commercial Paper       HTML     72K 
                Borrowings (Details)                                             
151: R82         Debt and Credit Agreements - Issuance of Long-Term  HTML     82K  
                Debt (Details)                                                   
109: R83         Income Taxes - Narrative (Details)                  HTML     77K  
62: R84         Income Taxes - Reconciliation to Effective Tax      HTML    145K 
                Rate (Details)                                                   
79: R85         Income Taxes - Accounting for Uncertainty in        HTML     58K 
                Income Taxes (Details)                                           
150: R86         Income Taxes Income Taxes - Reasonably possible     HTML     58K  
                the total amount of unrecognized tax benefits                    
                could significantly increase or decrease within 12               
                months after the reporting date (Details)                        
108: R87         Income Taxes Income Taxes - Other Income Tax        HTML     55K  
                Matters (Details)                                                
65: R88         Nuclear Decommissioning - Narrative (Details)       HTML     96K 
76: R89         Nuclear Decommissioning - Rollforward of Nuclear    HTML     93K 
                Decommissioning ARO (Details)                                    
96: R90         Retirement Benefits - Narrative (Details)           HTML     68K 
56: R91         Retirement Benefits - Calculation of Net Periodic   HTML     82K 
                Benefit Cost (Details)                                           
129: R92         Retirement Benefits - Allocated Portion of Pension  HTML     82K  
                and Postretirement Benefit Plan Costs (Details)                  
143: R93         Retirement Benefits - Defined Contribution Savings  HTML     70K  
                Plans (Details)                                                  
97: R94         Changes in Accumulated Other Comprehensive Income   HTML    113K 
                - Schedule of Changes in AOCI (Details)                          
57: R95         Changes in Accumulated Other Comprehensive Income   HTML     57K 
                - Components of Other Comprehensive Income (Loss)                
                (Details)                                                        
130: R96         Commitments and Contingencies - Narrative           HTML    118K  
                (Details)                                                        
144: R97         Commitments and Contingencies - Merger Commitment   HTML     68K  
                (Details)                                                        
100: R98         Commitments and Contingencies - Schedule of         HTML    190K  
                Commercial Commitments (Details)                                 
54: R99         Commitments and Contingencies - Schedule of         HTML     79K 
                Accruals for Environmental Matters (Details)                     
158: R100        Supplemental Financial Information - Utility Taxes  HTML     79K  
                (Details)                                                        
117: R101        Supplemental Financial Information - Operations     HTML     89K  
                (Detail)                                                         
70: R102        Supplemental Financial Information - Cash Flow      HTML    152K 
                (Details)                                                        
87: R103        Supplemental Financial Information - Balance Sheet  HTML    126K 
                (Details)                                                        
157: R104        Segment Information - Narrative (Details)           HTML     52K  
116: R105        Segment Information - Reconciliation to             HTML    394K  
                Consolidated Financial Statements (Details)                      
69: R106        Segment Information - Generation Total Revenues     HTML    133K 
                (Details)                                                        
86: R107        Segment Information - Generation Total Revenues     HTML     99K 
                Net of Purchased Power and Fuel Expense (Details)                
159: R108        Segment Information - Electric and Gas Revenue by   HTML    279K  
                Customer Class (Details)                                         
154: XML         IDEA XML File -- Filing Summary                      XML    257K  
118: XML         XBRL Instance -- exc-20190930x10q_htm                XML  25.50M  
104: EXCEL       IDEA Workbook of Financial Reports                  XLSX    284K  
45: EX-101.CAL  XBRL Calculations -- exc-20190930_cal                XML    432K 
46: EX-101.DEF  XBRL Definitions -- exc-20190930_def                 XML   2.45M 
47: EX-101.LAB  XBRL Labels -- exc-20190930_lab                      XML   3.20M 
48: EX-101.PRE  XBRL Presentations -- exc-20190930_pre               XML   2.60M 
44: EX-101.SCH  XBRL Schema -- exc-20190930                          XSD    358K 
137: JSON        XBRL Instance as JSON Data -- MetaLinks              650±  1.07M  
132: ZIP         XBRL Zipped Folder -- 0001109357-19-000112-xbrl      Zip   1.25M

‘EX-101.PRE’   —   XBRL Presentations — exc-20190930_pre

This Exhibit is an XBRL XML File.

                                                                                                                                                                                
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<link:roleRef roleURI="http://www.exeloncorp.com/role/AssetImpairmentsExelonAndGeneration" xlink:href="exc-20190930.xsd#AssetImpairmentsExelonAndGeneration" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/AssetImpairmentsNarrativeDetails" xlink:href="exc-20190930.xsd#AssetImpairmentsNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/AssetImpairmentsTables" xlink:href="exc-20190930.xsd#AssetImpairmentsTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/ChangesInAccumulatedOtherComprehensiveIncomeComponentsOfOtherComprehensiveIncomeLossDetails" xlink:href="exc-20190930.xsd#ChangesInAccumulatedOtherComprehensiveIncomeComponentsOfOtherComprehensiveIncomeLossDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/ChangesInAccumulatedOtherComprehensiveIncomeExelon" xlink:href="exc-20190930.xsd#ChangesInAccumulatedOtherComprehensiveIncomeExelon" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/ChangesInAccumulatedOtherComprehensiveIncomeScheduleOfChangesInAociDetails" xlink:href="exc-20190930.xsd#ChangesInAccumulatedOtherComprehensiveIncomeScheduleOfChangesInAociDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/ChangesInAccumulatedOtherComprehensiveIncomeTables" xlink:href="exc-20190930.xsd#ChangesInAccumulatedOtherComprehensiveIncomeTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/CommitmentsAndContingenciesAllRegistrants" xlink:href="exc-20190930.xsd#CommitmentsAndContingenciesAllRegistrants" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/CommitmentsAndContingenciesMergerCommitmentDetails" xlink:href="exc-20190930.xsd#CommitmentsAndContingenciesMergerCommitmentDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/CommitmentsAndContingenciesNarrativeDetails" xlink:href="exc-20190930.xsd#CommitmentsAndContingenciesNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/CommitmentsAndContingenciesScheduleOfAccrualsForEnvironmentalMattersDetails" xlink:href="exc-20190930.xsd#CommitmentsAndContingenciesScheduleOfAccrualsForEnvironmentalMattersDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/CommitmentsAndContingenciesScheduleOfCommercialCommitmentsDetails" xlink:href="exc-20190930.xsd#CommitmentsAndContingenciesScheduleOfCommercialCommitmentsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/CommitmentsAndContingenciesTables" xlink:href="exc-20190930.xsd#CommitmentsAndContingenciesTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsUnaudited" xlink:href="exc-20190930.xsd#ConsolidatedBalanceSheetsUnaudited" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsUnauditedParenthetical" xlink:href="exc-20190930.xsd#ConsolidatedBalanceSheetsUnauditedParenthetical" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsOfCashFlowsUnaudited" xlink:href="exc-20190930.xsd#ConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsOfChangesInShareholdersEquityUnaudited" xlink:href="exc-20190930.xsd#ConsolidatedStatementsOfChangesInShareholdersEquityUnaudited" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsOfChangesInShareholdersEquityUnauditedParenthetical" xlink:href="exc-20190930.xsd#ConsolidatedStatementsOfChangesInShareholdersEquityUnauditedParenthetical" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveIncomeUnaudited" xlink:href="exc-20190930.xsd#ConsolidatedStatementsOfOperationsAndComprehensiveIncomeUnaudited" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/CoverPage" xlink:href="exc-20190930.xsd#CoverPage" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DebtAndCreditAgreementsAllRegistrants" xlink:href="exc-20190930.xsd#DebtAndCreditAgreementsAllRegistrants" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DebtAndCreditAgreementsCommercialPaperBorrowingsDetails" xlink:href="exc-20190930.xsd#DebtAndCreditAgreementsCommercialPaperBorrowingsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DebtAndCreditAgreementsIssuanceOfLongTermDebtDetails" xlink:href="exc-20190930.xsd#DebtAndCreditAgreementsIssuanceOfLongTermDebtDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DebtAndCreditAgreementsNarrativeDetails" xlink:href="exc-20190930.xsd#DebtAndCreditAgreementsNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DebtAndCreditAgreementsTables" xlink:href="exc-20190930.xsd#DebtAndCreditAgreementsTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsAllRegistrants" xlink:href="exc-20190930.xsd#DerivativeFinancialInstrumentsAllRegistrants" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsDerivativeFinancialInstrumentsSummaryOfCashCollateralAndLettersOfCreditDetails" xlink:href="exc-20190930.xsd#DerivativeFinancialInstrumentsDerivativeFinancialInstrumentsSummaryOfCashCollateralAndLettersOfCreditDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsNarrativeDetails" xlink:href="exc-20190930.xsd#DerivativeFinancialInstrumentsNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsSummaryOfCreditRiskExposureDetails" xlink:href="exc-20190930.xsd#DerivativeFinancialInstrumentsSummaryOfCreditRiskExposureDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsSummaryOfCreditRiskRelatedContingentFeaturesDetails" xlink:href="exc-20190930.xsd#DerivativeFinancialInstrumentsSummaryOfCreditRiskRelatedContingentFeaturesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsSummaryOfDerivativeFairValueBalancesDetails" xlink:href="exc-20190930.xsd#DerivativeFinancialInstrumentsSummaryOfDerivativeFairValueBalancesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsSummaryOfEconomicHedgesDetails" xlink:href="exc-20190930.xsd#DerivativeFinancialInstrumentsSummaryOfEconomicHedgesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsTables" xlink:href="exc-20190930.xsd#DerivativeFinancialInstrumentsTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.exeloncorp.com/role/EarlyPlantRetirementsExelonAndGeneration" xlink:href="exc-20190930.xsd#EarlyPlantRetirementsExelonAndGeneration" xlink:type="simple"/>
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4 Subsequent Filings that Reference this Filing

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

 2/21/24  Exelon Corp.                      10-K       12/31/23  322:89M
 2/14/23  Exelon Corp.                      10-K       12/31/22  279:68M
 2/25/22  Exelon Corp.                      10-K       12/31/21  313:198M
 2/24/21  Exelon Corp.                      10-K       12/31/20  310:85M
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