<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:f2500d19-25d1-4d31-af7e-d15a7b488e8c,g:0690d314-9f0f-4167-b56b-342e00662942-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:exc="http://www.exeloncorp.com/20231231" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2022-03-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:dtr-types1="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:srt-types="http://fasb.org/srt-types/2023" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.exeloncorp.com/20231231">
  <xs:import namespace="http://fasb.org/srt-types/2023" schemaLocation="https://xbrl.fasb.org/srt/2023/elts/srt-types-2023.xsd"/>
  <xs:import namespace="http://fasb.org/srt/2023" schemaLocation="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2023" schemaLocation="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd"/>
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2022-03-31" schemaLocation="https://www.xbrl.org/dtr/type/2022-03-31/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2023" schemaLocation="https://xbrl.sec.gov/dei/2023/dei-2023.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/sic/2023" schemaLocation="https://xbrl.sec.gov/sic/2023/sic-2023.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/stpr/2023" schemaLocation="https://xbrl.sec.gov/stpr/2023/stpr-2023.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="exc-20231231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="exc-20231231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="exc-20231231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="exc-20231231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="CoverPage" roleURI="http://www.exeloncorp.com/role/CoverPage">
        <link:definition>0000001 - Document - Cover Page</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AuditorInformation" roleURI="http://www.exeloncorp.com/role/AuditorInformation">
        <link:definition>0000002 - Document - Auditor Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofOperationsandComprehensiveIncomeExelon" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofOperationsandComprehensiveIncomeExelon">
        <link:definition>0000003 - Statement - Consolidated Statements of Operations and Comprehensive Income - Exelon</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofOperationsandComprehensiveIncomeExelon_1" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofOperationsandComprehensiveIncomeExelon_1">
        <link:definition>0000003 - Statement - Consolidated Statements of Operations and Comprehensive Income - Exelon</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofOperationsandComprehensiveIncomeComEd" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofOperationsandComprehensiveIncomeComEd">
        <link:definition>0000004 - Statement - Consolidated Statements of Operations and Comprehensive Income - ComEd</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofOperationsandComprehensiveIncomePECO" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofOperationsandComprehensiveIncomePECO">
        <link:definition>0000005 - Statement - Consolidated Statements of Operations and Comprehensive Income - PECO</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsofOperationsandComprehensiveIncomeBGE" roleURI="http://www.exeloncorp.com/role/StatementsofOperationsandComprehensiveIncomeBGE">
        <link:definition>0000006 - Statement - Statements of Operations and Comprehensive Income - BGE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofOperationsandComprehensiveIncomePHI" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofOperationsandComprehensiveIncomePHI">
        <link:definition>0000007 - Statement - Consolidated Statements of Operations and Comprehensive Income - PHI</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsofOperationsandComprehensiveIncomePepco" roleURI="http://www.exeloncorp.com/role/StatementsofOperationsandComprehensiveIncomePepco">
        <link:definition>0000008 - Statement - Statements of Operations and Comprehensive Income - Pepco</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsofOperationsandComprehensiveIncomeDPL" roleURI="http://www.exeloncorp.com/role/StatementsofOperationsandComprehensiveIncomeDPL">
        <link:definition>0000009 - Statement - Statements of Operations and Comprehensive Income - DPL</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofOperationsandComprehensiveIncomeACE" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofOperationsandComprehensiveIncomeACE">
        <link:definition>0000010 - Statement - Consolidated Statements of Operations and Comprehensive Income - ACE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofCashFlowsExelon" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofCashFlowsExelon">
        <link:definition>0000011 - Statement - Consolidated Statements of Cash Flows - Exelon</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofCashFlowsComEd" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofCashFlowsComEd">
        <link:definition>0000012 - Statement - Consolidated Statements of Cash Flows - ComEd</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofCashFlowsComEdParentheticals" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofCashFlowsComEdParentheticals">
        <link:definition>0000013 - Statement - Consolidated Statements of Cash Flows - ComEd (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofCashFlowsPECO" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofCashFlowsPECO">
        <link:definition>0000014 - Statement - Consolidated Statements of Cash Flows - PECO</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofCashFlowsPECOParentheticals" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofCashFlowsPECOParentheticals">
        <link:definition>0000015 - Statement - Consolidated Statements of Cash Flows - PECO (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsofCashFlowsBGE" roleURI="http://www.exeloncorp.com/role/StatementsofCashFlowsBGE">
        <link:definition>0000016 - Statement - Statements of Cash Flows - BGE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsofCashFlowsBGEParentheticals" roleURI="http://www.exeloncorp.com/role/StatementsofCashFlowsBGEParentheticals">
        <link:definition>0000017 - Statement - Statements of Cash Flows - BGE (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofCashFlowsPHI" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofCashFlowsPHI">
        <link:definition>0000018 - Statement - Consolidated Statements of Cash Flows - PHI</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsofCashFlowsPepco" roleURI="http://www.exeloncorp.com/role/StatementsofCashFlowsPepco">
        <link:definition>0000019 - Statement - Statements of Cash Flows - Pepco</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsofCashFlowsPepcoParentheticals" roleURI="http://www.exeloncorp.com/role/StatementsofCashFlowsPepcoParentheticals">
        <link:definition>0000020 - Statement - Statements of Cash Flows - Pepco (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsofCashFlowsDPL" roleURI="http://www.exeloncorp.com/role/StatementsofCashFlowsDPL">
        <link:definition>0000021 - Statement - Statements of Cash Flows - DPL</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsofCashFlowsDPLParentheticals" roleURI="http://www.exeloncorp.com/role/StatementsofCashFlowsDPLParentheticals">
        <link:definition>0000022 - Statement - Statements of Cash Flows - DPL (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofCashFlowsACE" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofCashFlowsACE">
        <link:definition>0000023 - Statement - Consolidated Statements of Cash Flows - ACE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofCashFlowsACEParentheticals" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofCashFlowsACEParentheticals">
        <link:definition>0000024 - Statement - Consolidated Statements of Cash Flows - ACE (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsExelon" roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsExelon">
        <link:definition>0000025 - Statement - Consolidated Balance Sheets - Exelon</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsExelonParentheticals" roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsExelonParentheticals">
        <link:definition>0000026 - Statement - Consolidated Balance Sheets - Exelon (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsComEd" roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsComEd">
        <link:definition>0000027 - Statement - Consolidated Balance Sheets - ComEd</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsComEdParentheticals" roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsComEdParentheticals">
        <link:definition>0000028 - Statement - Consolidated Balance Sheets - ComEd (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsPECO" roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsPECO">
        <link:definition>0000029 - Statement - Consolidated Balance Sheets - PECO</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsPECOParentheticals" roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsPECOParentheticals">
        <link:definition>0000030 - Statement - Consolidated Balance Sheets - PECO (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetsBGE" roleURI="http://www.exeloncorp.com/role/BalanceSheetsBGE">
        <link:definition>0000031 - Statement - Balance Sheets - BGE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetsBGEParentheticals" roleURI="http://www.exeloncorp.com/role/BalanceSheetsBGEParentheticals">
        <link:definition>0000032 - Statement - Balance Sheets - BGE (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsPHI" roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsPHI">
        <link:definition>0000033 - Statement - Consolidated Balance Sheets - PHI</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsPHIParentheticals" roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsPHIParentheticals">
        <link:definition>0000034 - Statement - Consolidated Balance Sheets - PHI (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetsPepco" roleURI="http://www.exeloncorp.com/role/BalanceSheetsPepco">
        <link:definition>0000035 - Statement - Balance Sheets - Pepco</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetsPepcoParentheticals" roleURI="http://www.exeloncorp.com/role/BalanceSheetsPepcoParentheticals">
        <link:definition>0000036 - Statement - Balance Sheets - Pepco (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetsDPL" roleURI="http://www.exeloncorp.com/role/BalanceSheetsDPL">
        <link:definition>0000037 - Statement - Balance Sheets - DPL</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetsDPLParentheticals" roleURI="http://www.exeloncorp.com/role/BalanceSheetsDPLParentheticals">
        <link:definition>0000038 - Statement - Balance Sheets - DPL (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsACE" roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsACE">
        <link:definition>0000039 - Statement - Consolidated Balance Sheets - ACE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsACEParentheticals" roleURI="http://www.exeloncorp.com/role/ConsolidatedBalanceSheetsACEParentheticals">
        <link:definition>0000040 - Statement - Consolidated Balance Sheets - ACE (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofChangesinShareholdersEquityExelon" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementofChangesinShareholdersEquityExelon">
        <link:definition>0000041 - Statement - Consolidated Statement of Changes in Shareholders Equity - Exelon</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofChangesinShareholdersEquityExelonParentheticals" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementofChangesinShareholdersEquityExelonParentheticals">
        <link:definition>0000042 - Statement - Consolidated Statement of Changes in Shareholders Equity - Exelon (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofChangesinShareholdersEquityComEd" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementofChangesinShareholdersEquityComEd">
        <link:definition>0000043 - Statement - Consolidated Statement of Changes in Shareholders Equity - ComEd</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofChangesinShareholdersEquityPECO" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementofChangesinShareholdersEquityPECO">
        <link:definition>0000044 - Statement - Consolidated Statement of Changes in Shareholders Equity - PECO</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsofChangesinShareholdersEquityBGE" roleURI="http://www.exeloncorp.com/role/StatementsofChangesinShareholdersEquityBGE">
        <link:definition>0000045 - Statement - Statements of Changes in Shareholder's Equity - BGE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofChangesinEquityPHI" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementsofChangesinEquityPHI">
        <link:definition>0000046 - Statement - Consolidated Statements of Changes in Equity - PHI</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementofChangesinShareholdersEquityPepco" roleURI="http://www.exeloncorp.com/role/StatementofChangesinShareholdersEquityPepco">
        <link:definition>0000047 - Statement - Statement of Changes in Shareholders Equity - Pepco</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementofChangesinShareholdersEquityDPL" roleURI="http://www.exeloncorp.com/role/StatementofChangesinShareholdersEquityDPL">
        <link:definition>0000048 - Statement - Statement of Changes in Shareholders Equity - DPL</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofChangesinShareholdersEquityACE" roleURI="http://www.exeloncorp.com/role/ConsolidatedStatementofChangesinShareholdersEquityACE">
        <link:definition>0000049 - Statement - Consolidated Statement of Changes in Shareholders Equity - ACE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SignificantAccountingPoliciesAllRegistrants" roleURI="http://www.exeloncorp.com/role/SignificantAccountingPoliciesAllRegistrants">
        <link:definition>0000050 - Disclosure - Significant Accounting Policies (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DiscontinuedOperationsExelon" roleURI="http://www.exeloncorp.com/role/DiscontinuedOperationsExelon">
        <link:definition>0000051 - Disclosure - Discontinued Operations (Exelon)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersAllRegistrants" roleURI="http://www.exeloncorp.com/role/RegulatoryMattersAllRegistrants">
        <link:definition>0000052 - Disclosure - Regulatory Matters (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuefromContractswithCustomersAllRegistrants" roleURI="http://www.exeloncorp.com/role/RevenuefromContractswithCustomersAllRegistrants">
        <link:definition>0000053 - Disclosure - Revenue from Contracts with Customers (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationAllRegistrants" roleURI="http://www.exeloncorp.com/role/SegmentInformationAllRegistrants">
        <link:definition>0000054 - Disclosure - Segment Information (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountsReceivableAllRegistrants" roleURI="http://www.exeloncorp.com/role/AccountsReceivableAllRegistrants">
        <link:definition>0000055 - Disclosure - Accounts Receivable (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentAllRegistrants" roleURI="http://www.exeloncorp.com/role/PropertyPlantandEquipmentAllRegistrants">
        <link:definition>0000056 - Disclosure - Property, Plant and Equipment (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="JointlyOwnedElectricUtilityPlantExelonPECODPLandACE" roleURI="http://www.exeloncorp.com/role/JointlyOwnedElectricUtilityPlantExelonPECODPLandACE">
        <link:definition>0000057 - Disclosure - Jointly Owned Electric Utility Plant (Exelon, PECO, DPL and ACE)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AssetRetirementObligationsAllRegistrants" roleURI="http://www.exeloncorp.com/role/AssetRetirementObligationsAllRegistrants">
        <link:definition>0000058 - Disclosure - Asset Retirement Obligations (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesAllRegistrants" roleURI="http://www.exeloncorp.com/role/LeasesAllRegistrants">
        <link:definition>0000059 - Disclosure - Leases (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AssetImpairmentsExelonandBGE" roleURI="http://www.exeloncorp.com/role/AssetImpairmentsExelonandBGE">
        <link:definition>0000060 - Disclosure - Asset Impairments (Exelon and BGE)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssets" roleURI="http://www.exeloncorp.com/role/IntangibleAssets">
        <link:definition>0000061 - Disclosure - Intangible Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesAllRegistrants" roleURI="http://www.exeloncorp.com/role/IncomeTaxesAllRegistrants">
        <link:definition>0000062 - Disclosure - Income Taxes (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsAllRegistrants" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsAllRegistrants">
        <link:definition>0000063 - Disclosure - Retirement Benefits (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsAllRegistrants" roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsAllRegistrants">
        <link:definition>0000064 - Disclosure - Derivative Financial Instruments (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCreditAgreementsAllRegistrants" roleURI="http://www.exeloncorp.com/role/DebtandCreditAgreementsAllRegistrants">
        <link:definition>0000065 - Disclosure - Debt and Credit Agreements (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialAssetsandLiabilitiesAllRegistrants" roleURI="http://www.exeloncorp.com/role/FairValueofFinancialAssetsandLiabilitiesAllRegistrants">
        <link:definition>0000066 - Disclosure - Fair Value of Financial Assets and Liabilities (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesAllRegistrants" roleURI="http://www.exeloncorp.com/role/CommitmentsandContingenciesAllRegistrants">
        <link:definition>0000067 - Disclosure - Commitments and Contingencies (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeveranceAllRegistrants" roleURI="http://www.exeloncorp.com/role/SeveranceAllRegistrants">
        <link:definition>0000068 - Disclosure - Severance (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityAllRegistrants" roleURI="http://www.exeloncorp.com/role/ShareholdersEquityAllRegistrants">
        <link:definition>0000069 - Disclosure - Shareholders' Equity (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlansAllRegistrants" roleURI="http://www.exeloncorp.com/role/StockBasedCompensationPlansAllRegistrants">
        <link:definition>0000070 - Disclosure - Stock-Based Compensation Plans (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ChangesinAccumulatedOtherComprehensiveIncomeExelon" roleURI="http://www.exeloncorp.com/role/ChangesinAccumulatedOtherComprehensiveIncomeExelon">
        <link:definition>0000071 - Disclosure - Changes in Accumulated Other Comprehensive Income (Exelon)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialInformationAllRegistrants" roleURI="http://www.exeloncorp.com/role/SupplementalFinancialInformationAllRegistrants">
        <link:definition>0000072 - Disclosure - Supplemental Financial Information (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsAllRegistrants" roleURI="http://www.exeloncorp.com/role/RelatedPartyTransactionsAllRegistrants">
        <link:definition>0000073 - Disclosure - Related Party Transactions (All Registrants)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEvents" roleURI="http://www.exeloncorp.com/role/SubsequentEvents">
        <link:definition>0000074 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleICondensedFinancialInformationofParentExelonCorporate" roleURI="http://www.exeloncorp.com/role/ScheduleICondensedFinancialInformationofParentExelonCorporate">
        <link:definition>0000075 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIIValuationandQualifyingAccounts" roleURI="http://www.exeloncorp.com/role/ScheduleIIValuationandQualifyingAccounts">
        <link:definition>0000076 - Disclosure - Schedule II - Valuation and Qualifying Accounts</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SignificantAccountingPoliciesPolicies" roleURI="http://www.exeloncorp.com/role/SignificantAccountingPoliciesPolicies">
        <link:definition>9954471 - Disclosure - Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DiscontinuedOperationsTables" roleURI="http://www.exeloncorp.com/role/DiscontinuedOperationsTables">
        <link:definition>9954472 - Disclosure - Discontinued Operations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersTables" roleURI="http://www.exeloncorp.com/role/RegulatoryMattersTables">
        <link:definition>9954473 - Disclosure - Regulatory Matters (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuefromContractswithCustomersTables" roleURI="http://www.exeloncorp.com/role/RevenuefromContractswithCustomersTables">
        <link:definition>9954474 - Disclosure - Revenue from Contracts with Customers (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationTables" roleURI="http://www.exeloncorp.com/role/SegmentInformationTables">
        <link:definition>9954475 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountsReceivableTables" roleURI="http://www.exeloncorp.com/role/AccountsReceivableTables">
        <link:definition>9954476 - Disclosure - Accounts Receivable (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentTables" roleURI="http://www.exeloncorp.com/role/PropertyPlantandEquipmentTables">
        <link:definition>9954477 - Disclosure - Property, Plant and Equipment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="JointlyOwnedElectricUtilityPlantTables" roleURI="http://www.exeloncorp.com/role/JointlyOwnedElectricUtilityPlantTables">
        <link:definition>9954478 - Disclosure - Jointly Owned Electric Utility Plant (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AssetRetirementObligationsTables" roleURI="http://www.exeloncorp.com/role/AssetRetirementObligationsTables">
        <link:definition>9954479 - Disclosure - Asset Retirement Obligations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesTables" roleURI="http://www.exeloncorp.com/role/LeasesTables">
        <link:definition>9954480 - Disclosure - Leases (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsTables" roleURI="http://www.exeloncorp.com/role/IntangibleAssetsTables">
        <link:definition>9954481 - Disclosure - Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://www.exeloncorp.com/role/IncomeTaxesTables">
        <link:definition>9954482 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsTables" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsTables">
        <link:definition>9954483 - Disclosure - Retirement Benefits (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsTables" roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsTables">
        <link:definition>9954484 - Disclosure - Derivative Financial Instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCreditAgreementsTables" roleURI="http://www.exeloncorp.com/role/DebtandCreditAgreementsTables">
        <link:definition>9954485 - Disclosure - Debt and Credit Agreements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialAssetsandLiabilitiesTables" roleURI="http://www.exeloncorp.com/role/FairValueofFinancialAssetsandLiabilitiesTables">
        <link:definition>9954486 - Disclosure - Fair Value of Financial Assets and Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesTables" roleURI="http://www.exeloncorp.com/role/CommitmentsandContingenciesTables">
        <link:definition>9954487 - Disclosure - Commitments and Contingencies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeveranceTables" roleURI="http://www.exeloncorp.com/role/SeveranceTables">
        <link:definition>9954488 - Disclosure - Severance (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityTables" roleURI="http://www.exeloncorp.com/role/ShareholdersEquityTables">
        <link:definition>9954489 - Disclosure - Shareholders' Equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlansTables" roleURI="http://www.exeloncorp.com/role/StockBasedCompensationPlansTables">
        <link:definition>9954490 - Disclosure - Stock-Based Compensation Plans (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ChangesinAccumulatedOtherComprehensiveIncomeTables" roleURI="http://www.exeloncorp.com/role/ChangesinAccumulatedOtherComprehensiveIncomeTables">
        <link:definition>9954491 - Disclosure - Changes in Accumulated Other Comprehensive Income (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialInformationTables" roleURI="http://www.exeloncorp.com/role/SupplementalFinancialInformationTables">
        <link:definition>9954492 - Disclosure - Supplemental Financial Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsTables" roleURI="http://www.exeloncorp.com/role/RelatedPartyTransactionsTables">
        <link:definition>9954493 - Disclosure - Related Party Transactions (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SignificantAccountingPoliciesNarrativeDetails" roleURI="http://www.exeloncorp.com/role/SignificantAccountingPoliciesNarrativeDetails">
        <link:definition>9954494 - Disclosure - Significant Accounting Policies - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DiscontinuedOperationsandDisposalGroupsNarrativeDetails" roleURI="http://www.exeloncorp.com/role/DiscontinuedOperationsandDisposalGroupsNarrativeDetails">
        <link:definition>9954495 - Disclosure - Discontinued Operations and Disposal Groups - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DiscontinuedOperationsIncomeStatementDetails" roleURI="http://www.exeloncorp.com/role/DiscontinuedOperationsIncomeStatementDetails">
        <link:definition>9954496 - Disclosure - Discontinued Operations Income Statement - (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DiscontinuedOperationsCashFlowDetails" roleURI="http://www.exeloncorp.com/role/DiscontinuedOperationsCashFlowDetails">
        <link:definition>9954497 - Disclosure - Discontinued Operations Cash Flow - (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersNarrativeDetails" roleURI="http://www.exeloncorp.com/role/RegulatoryMattersNarrativeDetails">
        <link:definition>9954498 - Disclosure - Regulatory Matters- Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersScheduleofCompletedRateCasesDetails" roleURI="http://www.exeloncorp.com/role/RegulatoryMattersScheduleofCompletedRateCasesDetails">
        <link:definition>9954499 - Disclosure - Regulatory Matters - Schedule of Completed Rate Cases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersScheduleofPendingRateCasesDetails" roleURI="http://www.exeloncorp.com/role/RegulatoryMattersScheduleofPendingRateCasesDetails">
        <link:definition>9954500 - Disclosure - Regulatory Matters - Schedule of Pending Rate Cases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersAnnualElectricTransmissionFilingsDetails" roleURI="http://www.exeloncorp.com/role/RegulatoryMattersAnnualElectricTransmissionFilingsDetails">
        <link:definition>9954501 - Disclosure - Regulatory Matters - Annual Electric Transmission Filings (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersEnergyEfficiencyFormulaRateDetails" roleURI="http://www.exeloncorp.com/role/RegulatoryMattersEnergyEfficiencyFormulaRateDetails">
        <link:definition>9954502 - Disclosure - Regulatory Matters - Energy Efficiency Formula Rate (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersScheduleofRegulatoryAssetsDetails" roleURI="http://www.exeloncorp.com/role/RegulatoryMattersScheduleofRegulatoryAssetsDetails">
        <link:definition>9954503 - Disclosure - Regulatory Matters - Schedule of Regulatory Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersScheduleofRegulatoryLiabilitiesDetails" roleURI="http://www.exeloncorp.com/role/RegulatoryMattersScheduleofRegulatoryLiabilitiesDetails">
        <link:definition>9954504 - Disclosure - Regulatory Matters - Schedule of Regulatory Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersCapitalizedRatemakingAmountsNotRecognizedDetails" roleURI="http://www.exeloncorp.com/role/RegulatoryMattersCapitalizedRatemakingAmountsNotRecognizedDetails">
        <link:definition>9954505 - Disclosure - Regulatory Matters - Capitalized Ratemaking Amounts Not Recognized (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuefromContractswithCustomersAllRegistrantsNarrativeDetails" roleURI="http://www.exeloncorp.com/role/RevenuefromContractswithCustomersAllRegistrantsNarrativeDetails">
        <link:definition>9954506 - Disclosure - Revenue from Contracts with Customers (All Registrants) - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuefromContractswithCustomersAllRegistrantsNarrativeDetails_1" roleURI="http://www.exeloncorp.com/role/RevenuefromContractswithCustomersAllRegistrantsNarrativeDetails_1">
        <link:definition>9954506 - Disclosure - Revenue from Contracts with Customers (All Registrants) - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuefromContractswithCustomersAllRegistrantsChangeinContractwithCustomerAssetandLiabilityDetails" roleURI="http://www.exeloncorp.com/role/RevenuefromContractswithCustomersAllRegistrantsChangeinContractwithCustomerAssetandLiabilityDetails">
        <link:definition>9954507 - Disclosure - Revenue from Contracts with Customers (All Registrants) - Change in Contract with Customer, Asset and Liability (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuefromContractswithCustomersAllRegistrantsPerformanceObligationsDetails" roleURI="http://www.exeloncorp.com/role/RevenuefromContractswithCustomersAllRegistrantsPerformanceObligationsDetails">
        <link:definition>9954508 - Disclosure - Revenue from Contracts with Customers (All Registrants) - Performance Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuefromContractswithCustomersAllRegistrantsPerformanceObligationsDetails_1" roleURI="http://www.exeloncorp.com/role/RevenuefromContractswithCustomersAllRegistrantsPerformanceObligationsDetails_1">
        <link:definition>9954508 - Disclosure - Revenue from Contracts with Customers (All Registrants) - Performance Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationNarrativeDetails" roleURI="http://www.exeloncorp.com/role/SegmentInformationNarrativeDetails">
        <link:definition>9954509 - Disclosure - Segment Information - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationReconciliationtoConsolidatedFinancialStatementsDetails" roleURI="http://www.exeloncorp.com/role/SegmentInformationReconciliationtoConsolidatedFinancialStatementsDetails">
        <link:definition>9954510 - Disclosure - Segment Information - Reconciliation to Consolidated Financial Statements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationElectricandGasRevenuebyCustomerClassDetails" roleURI="http://www.exeloncorp.com/role/SegmentInformationElectricandGasRevenuebyCustomerClassDetails">
        <link:definition>9954511 - Disclosure - Segment Information - Electric and Gas Revenue by Customer Class (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountsReceivableNarrativeDetails" roleURI="http://www.exeloncorp.com/role/AccountsReceivableNarrativeDetails">
        <link:definition>9954512 - Disclosure - Accounts Receivable - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountsReceivableAllowanceforCreditLossesRollforwardDetails" roleURI="http://www.exeloncorp.com/role/AccountsReceivableAllowanceforCreditLossesRollforwardDetails">
        <link:definition>9954513 - Disclosure - Accounts Receivable - Allowance for Credit Losses Rollforward (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountsReceivableUnbilledCustomerRevenueDetails" roleURI="http://www.exeloncorp.com/role/AccountsReceivableUnbilledCustomerRevenueDetails">
        <link:definition>9954514 - Disclosure - Accounts Receivable - Unbilled Customer Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountsReceivablePurchasesandSalesofAccountsReceivableDetail" roleURI="http://www.exeloncorp.com/role/AccountsReceivablePurchasesandSalesofAccountsReceivableDetail">
        <link:definition>9954515 - Disclosure - Accounts Receivable - Purchases and Sales of Accounts Receivable (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentSummaryofPropertyPlantandEquipmentDetails" roleURI="http://www.exeloncorp.com/role/PropertyPlantandEquipmentSummaryofPropertyPlantandEquipmentDetails">
        <link:definition>9954516 - Disclosure - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentAnnualDepreciationProvisionsasPercentageofAverageServiceLifeDetails" roleURI="http://www.exeloncorp.com/role/PropertyPlantandEquipmentAnnualDepreciationProvisionsasPercentageofAverageServiceLifeDetails">
        <link:definition>9954517 - Disclosure - Property, Plant and Equipment - Annual Depreciation Provisions as Percentage of Average Service Life (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentSummaryofCapitalizedInterestandAFUDCDetails" roleURI="http://www.exeloncorp.com/role/PropertyPlantandEquipmentSummaryofCapitalizedInterestandAFUDCDetails">
        <link:definition>9954518 - Disclosure - Property, Plant and Equipment - Summary of Capitalized Interest and AFUDC (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="JointlyOwnedElectricUtilityPlantOwnershipInterestsinJointlyOwnedElectricPlantsandTransmissionFacilitiesDetails" roleURI="http://www.exeloncorp.com/role/JointlyOwnedElectricUtilityPlantOwnershipInterestsinJointlyOwnedElectricPlantsandTransmissionFacilitiesDetails">
        <link:definition>9954519 - Disclosure - Jointly Owned Electric Utility Plant - Ownership Interests in Jointly Owned Electric Plants and Transmission Facilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AssetRetirementObligationsNonNuclearAssetRetirementObligationsRollforwardDetails" roleURI="http://www.exeloncorp.com/role/AssetRetirementObligationsNonNuclearAssetRetirementObligationsRollforwardDetails">
        <link:definition>9954520 - Disclosure - Asset Retirement Obligations - Non-Nuclear Asset Retirement Obligations Rollforward (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesTypesofLeasesDetails" roleURI="http://www.exeloncorp.com/role/LeasesTypesofLeasesDetails">
        <link:definition>9954521 - Disclosure - Leases - Types of Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesComponentsofLeaseCostDetails" roleURI="http://www.exeloncorp.com/role/LeasesComponentsofLeaseCostDetails">
        <link:definition>9954522 - Disclosure - Leases - Components of Lease Cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesSupplementalBalanceSheetInformationDetails" roleURI="http://www.exeloncorp.com/role/LeasesSupplementalBalanceSheetInformationDetails">
        <link:definition>9954523 - Disclosure - Leases - Supplemental Balance Sheet Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesLesseeFutureMinimumOperatingLeaseMaturityPaymentsDetails" roleURI="http://www.exeloncorp.com/role/LeasesLesseeFutureMinimumOperatingLeaseMaturityPaymentsDetails">
        <link:definition>9954524 - Disclosure - Leases - Lessee Future Minimum Operating Lease Maturity Payments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesLesseeFutureMinimumOperatingLeaseMaturityPaymentsDetails_1" roleURI="http://www.exeloncorp.com/role/LeasesLesseeFutureMinimumOperatingLeaseMaturityPaymentsDetails_1">
        <link:definition>9954524 - Disclosure - Leases - Lessee Future Minimum Operating Lease Maturity Payments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesLesseeSupplementalCashFlowInformationRelatedtoLeasesDetails" roleURI="http://www.exeloncorp.com/role/LeasesLesseeSupplementalCashFlowInformationRelatedtoLeasesDetails">
        <link:definition>9954525 - Disclosure - Leases - Lessee - Supplemental Cash Flow Information Related to Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesLessorTypesofLeasesDetails" roleURI="http://www.exeloncorp.com/role/LeasesLessorTypesofLeasesDetails">
        <link:definition>9954526 - Disclosure - Leases - Lessor - Types of Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesLessorComponentsofOperatingLeaseIncomeDetails" roleURI="http://www.exeloncorp.com/role/LeasesLessorComponentsofOperatingLeaseIncomeDetails">
        <link:definition>9954527 - Disclosure - Leases - Lessor - Components of Operating Lease Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesLessorOperatingLeasePaymentsFiscalYearMaturityDetails" roleURI="http://www.exeloncorp.com/role/LeasesLessorOperatingLeasePaymentsFiscalYearMaturityDetails">
        <link:definition>9954528 - Disclosure - Leases - Lessor - Operating Lease, Payments, Fiscal Year Maturity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AssetImpairmentsExelonandBGENarrativeDetails" roleURI="http://www.exeloncorp.com/role/AssetImpairmentsExelonandBGENarrativeDetails">
        <link:definition>9954529 - Disclosure - Asset Impairments (Exelon and BGE) - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsNarrativeDetails" roleURI="http://www.exeloncorp.com/role/IntangibleAssetsNarrativeDetails">
        <link:definition>9954530 - Disclosure - Intangible Assets - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsScheduleofGoodwillDetails" roleURI="http://www.exeloncorp.com/role/IntangibleAssetsScheduleofGoodwillDetails">
        <link:definition>9954531 - Disclosure - Intangible Assets - Schedule of Goodwill (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsScheduleofOtherIntangibleAssetsDetails" roleURI="http://www.exeloncorp.com/role/IntangibleAssetsScheduleofOtherIntangibleAssetsDetails">
        <link:definition>9954532 - Disclosure - Intangible Assets - Schedule of Other Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsSummaryofAmortizationExpenseDetails" roleURI="http://www.exeloncorp.com/role/IntangibleAssetsSummaryofAmortizationExpenseDetails">
        <link:definition>9954533 - Disclosure - Intangible Assets - Summary of Amortization Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNarrativeDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesNarrativeDetails">
        <link:definition>9954534 - Disclosure - Income Taxes - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesComponentsofIncomeTaxExpenseBenefitfromContinuingOperationsDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesComponentsofIncomeTaxExpenseBenefitfromContinuingOperationsDetails">
        <link:definition>9954535 - Disclosure - Income Taxes - Components of Income Tax Expense (Benefit) from Continuing Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesReconciliationtoEffectiveTaxRateDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesReconciliationtoEffectiveTaxRateDetails">
        <link:definition>9954536 - Disclosure - Income Taxes - Reconciliation to Effective Tax Rate (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTaxEffectsofTemporaryDifferencesandCarryforwardsDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesTaxEffectsofTemporaryDifferencesandCarryforwardsDetails">
        <link:definition>9954537 - Disclosure - Income Taxes - Tax Effects of Temporary Differences and Carryforwards (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesScheduleofCarryforwardsandCorrespondingValuationAllowancesDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesScheduleofCarryforwardsandCorrespondingValuationAllowancesDetails">
        <link:definition>9954538 - Disclosure - Income Taxes - Schedule of Carryforwards and Corresponding Valuation Allowances (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesRollforwardofUnrecognizedTaxBenefitsDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesRollforwardofUnrecognizedTaxBenefitsDetails">
        <link:definition>9954539 - Disclosure - Income Taxes - Rollforward of Unrecognized Tax Benefits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesRecognitionofUnrecognizedTaxBenefitsDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesRecognitionofUnrecognizedTaxBenefitsDetails">
        <link:definition>9954540 - Disclosure - Income Taxes - Recognition of Unrecognized Tax Benefits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesSummaryofInterestandPenaltiesReceivablePayableDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesSummaryofInterestandPenaltiesReceivablePayableDetails">
        <link:definition>9954541 - Disclosure - Income Taxes - Summary of Interest and Penalties Receivable (Payable) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTaxYearsOpentoAssessmentDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesTaxYearsOpentoAssessmentDetails">
        <link:definition>9954542 - Disclosure - Income Taxes - Tax Years Open to Assessment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesLongTermMarginalStateIncomeTaxRateDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesLongTermMarginalStateIncomeTaxRateDetails">
        <link:definition>9954543 - Disclosure - Income Taxes - Long-Term Marginal State Income Tax Rate (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesAllocationofTaxBenefitsDetails" roleURI="http://www.exeloncorp.com/role/IncomeTaxesAllocationofTaxBenefitsDetails">
        <link:definition>9954544 - Disclosure - Income Taxes - Allocation of Tax Benefits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsNarrativeDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsNarrativeDetails">
        <link:definition>9954545 - Disclosure - Retirement Benefits- Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsSummaryofChangesinBenefitObligationsandPlanAssetsDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsSummaryofChangesinBenefitObligationsandPlanAssetsDetails">
        <link:definition>9954546 - Disclosure - Retirement Benefits - Summary of Changes in Benefit Obligations and Plan Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsBenefitObligationsandPlanAssetsinBalanceSheetDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsBenefitObligationsandPlanAssetsinBalanceSheetDetails">
        <link:definition>9954547 - Disclosure - Retirement Benefits - Benefit Obligations and Plan Assets in Balance Sheet (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsProjectedBenefitObligationsandAccumulatedBenefitObligationsinExcessofPlanAssetsDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsProjectedBenefitObligationsandAccumulatedBenefitObligationsinExcessofPlanAssetsDetails">
        <link:definition>9954548 - Disclosure - Retirement Benefits- Projected Benefit Obligations and Accumulated Benefit Obligations in Excess of Plan Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsComponentsofNetPeriodicBenefitCostDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsComponentsofNetPeriodicBenefitCostDetails">
        <link:definition>9954549 - Disclosure - Retirement Benefits - Components of Net Periodic Benefit Cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsAllocatedPortionofPensionandPostretirementBenefitPlanCostsDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsAllocatedPortionofPensionandPostretirementBenefitPlanCostsDetails">
        <link:definition>9954550 - Disclosure - Retirement Benefits - Allocated Portion of Pension and Postretirement Benefit Plan Costs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsComponentsofAccumulatedOtherComprehensiveIncomeandRegulatoryAssetsLiabilitiesrelatedtoRetirementPlansDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsComponentsofAccumulatedOtherComprehensiveIncomeandRegulatoryAssetsLiabilitiesrelatedtoRetirementPlansDetails">
        <link:definition>9954551 - Disclosure - Retirement Benefits - Components of Accumulated Other Comprehensive Income and Regulatory Assets (Liabilities) related to Retirement Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsGrossAccumulatedOtherComprehensiveLossandRegulatoryAssetsLiabilitiesnotRecognizedasComponentsofPeriodicBenefitCostDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsGrossAccumulatedOtherComprehensiveLossandRegulatoryAssetsLiabilitiesnotRecognizedasComponentsofPeriodicBenefitCostDetails">
        <link:definition>9954552 - Disclosure - Retirement Benefits - Gross Accumulated Other Comprehensive Loss and Regulatory Assets (Liabilities) not Recognized as Components of Periodic Benefit Cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsAssumptionsUsedinCalculationsDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsAssumptionsUsedinCalculationsDetails">
        <link:definition>9954553 - Disclosure - Retirement Benefits - Assumptions Used in Calculations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsContributionsmadetoPensionandOtherPostretirementBenefitPlansDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsContributionsmadetoPensionandOtherPostretirementBenefitPlansDetails">
        <link:definition>9954554 - Disclosure - Retirement Benefits - Contributions made to Pension and Other Postretirement Benefit Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsEstimatedFutureBenefitPaymentsDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsEstimatedFutureBenefitPaymentsDetails">
        <link:definition>9954555 - Disclosure - Retirement Benefits - Estimated Future Benefit Payments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsPensionandOtherPostretirementBenefitPlanTargetAssetAllocationsDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsPensionandOtherPostretirementBenefitPlanTargetAssetAllocationsDetails">
        <link:definition>9954556 - Disclosure - Retirement Benefits - Pension and Other Postretirement Benefit Plan Target Asset Allocations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsFairValueMeasurementsofPensionandPostretirementBenefitPlanAssetsDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsFairValueMeasurementsofPensionandPostretirementBenefitPlanAssetsDetails">
        <link:definition>9954557 - Disclosure - Retirement Benefits - Fair Value Measurements of Pension and Postretirement Benefit Plan Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsReconciliationofLevel3AssetsandLiabilitiesmeasuredatFairValueforPensionandOtherPostretirementBenefitPlansDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsReconciliationofLevel3AssetsandLiabilitiesmeasuredatFairValueforPensionandOtherPostretirementBenefitPlansDetails">
        <link:definition>9954558 - Disclosure - Retirement Benefits - Reconciliation of Level 3 Assets and Liabilities measured at Fair Value for Pension and Other Postretirement Benefit Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementBenefitsDefinedContributionSavingsPlanDetails" roleURI="http://www.exeloncorp.com/role/RetirementBenefitsDefinedContributionSavingsPlanDetails">
        <link:definition>9954559 - Disclosure - Retirement Benefits - Defined Contribution Savings Plan (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsNarrativeDetails" roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsNarrativeDetails">
        <link:definition>9954560 - Disclosure - Derivative Financial Instruments - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsSummaryofDerivativeHedgingInstrumentsDetails" roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsSummaryofDerivativeHedgingInstrumentsDetails">
        <link:definition>9954561 - Disclosure - Derivative Financial Instruments - Summary of Derivative Hedging Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsSummaryofInterestRateHedgeBalancesDetails" roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsSummaryofInterestRateHedgeBalancesDetails">
        <link:definition>9954562 - Disclosure - Derivative Financial Instruments - Summary of Interest Rate Hedge Balances (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsSummaryofNotionalAmountsofOutstandingDerivativePositionsDetails" roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsSummaryofNotionalAmountsofOutstandingDerivativePositionsDetails">
        <link:definition>9954563 - Disclosure - Derivative Financial Instruments - Summary of Notional Amounts of Outstanding Derivative Positions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsSummaryofDerivativesNotDesignatedasHedgingInstrumentsDetails" roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsSummaryofDerivativesNotDesignatedasHedgingInstrumentsDetails">
        <link:definition>9954564 - Disclosure - Derivative Financial Instruments -Summary of Derivatives Not Designated as Hedging Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsSummaryofEconomicHedgesDetails" roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsSummaryofEconomicHedgesDetails">
        <link:definition>9954565 - Disclosure - Derivative Financial Instruments - Summary of Economic Hedges (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsSummaryofCounterpartyCollateralDetails" roleURI="http://www.exeloncorp.com/role/DerivativeFinancialInstrumentsSummaryofCounterpartyCollateralDetails">
        <link:definition>9954566 - Disclosure - Derivative Financial Instruments - Summary of Counterparty Collateral (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCreditAgreementsNarrativeDetails" roleURI="http://www.exeloncorp.com/role/DebtandCreditAgreementsNarrativeDetails">
        <link:definition>9954567 - Disclosure - Debt and Credit Agreements - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCreditAgreementsCommercialPaperBorrowingsDetails" roleURI="http://www.exeloncorp.com/role/DebtandCreditAgreementsCommercialPaperBorrowingsDetails">
        <link:definition>9954568 - Disclosure - Debt and Credit Agreements - Commercial Paper Borrowings (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCreditAgreementsSummaryofBankCommitmentsCreditFacilityBorrowingsandAvailableCapacityDetails" roleURI="http://www.exeloncorp.com/role/DebtandCreditAgreementsSummaryofBankCommitmentsCreditFacilityBorrowingsandAvailableCapacityDetails">
        <link:definition>9954569 - Disclosure - Debt and Credit Agreements - Summary of Bank Commitments, Credit Facility Borrowings and Available Capacity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCreditAgreementsSummaryofCreditFacilityAgreementsatMinorityandCommunityBanksDetails" roleURI="http://www.exeloncorp.com/role/DebtandCreditAgreementsSummaryofCreditFacilityAgreementsatMinorityandCommunityBanksDetails">
        <link:definition>9954570 - Disclosure - Debt and Credit Agreements - Summary of Credit Facility Agreements at Minority and Community Banks (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCreditAgreementsSummaryofRevolvingCreditAgreementsDetails" roleURI="http://www.exeloncorp.com/role/DebtandCreditAgreementsSummaryofRevolvingCreditAgreementsDetails">
        <link:definition>9954571 - Disclosure - Debt and Credit Agreements - Summary of Revolving Credit Agreements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCreditAgreementsSummaryofBasisSpreadDetails" roleURI="http://www.exeloncorp.com/role/DebtandCreditAgreementsSummaryofBasisSpreadDetails">
        <link:definition>9954572 - Disclosure - Debt and Credit Agreements - Summary of Basis Spread (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCreditAgreementsSummaryofOutstandingLongtermDebtDetails" roleURI="http://www.exeloncorp.com/role/DebtandCreditAgreementsSummaryofOutstandingLongtermDebtDetails">
        <link:definition>9954573 - Disclosure - Debt and Credit Agreements - Summary of Outstanding Long-term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCreditAgreementsScheduleofLongtermDebtMaturitiesDetails" roleURI="http://www.exeloncorp.com/role/DebtandCreditAgreementsScheduleofLongtermDebtMaturitiesDetails">
        <link:definition>9954574 - Disclosure - Debt and Credit Agreements - Schedule of Long-term Debt Maturities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialAssetsandLiabilitiesNarrativeDetails" roleURI="http://www.exeloncorp.com/role/FairValueofFinancialAssetsandLiabilitiesNarrativeDetails">
        <link:definition>9954575 - Disclosure - Fair Value of Financial Assets and Liabilities - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialAssetsandLiabilitiesFairValueofFinancialLiabilitiesRecordedatAmortizedCostDetails" roleURI="http://www.exeloncorp.com/role/FairValueofFinancialAssetsandLiabilitiesFairValueofFinancialLiabilitiesRecordedatAmortizedCostDetails">
        <link:definition>9954576 - Disclosure - Fair Value of Financial Assets and Liabilities - Fair Value of Financial Liabilities Recorded at Amortized Cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialAssetsandLiabilitiesFairValueMeasurementofAssetsandLiabilitiesRecurringDetails" roleURI="http://www.exeloncorp.com/role/FairValueofFinancialAssetsandLiabilitiesFairValueMeasurementofAssetsandLiabilitiesRecurringDetails">
        <link:definition>9954577 - Disclosure - Fair Value of Financial Assets and Liabilities - Fair Value Measurement of Assets and Liabilities, Recurring (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialAssetsandLiabilitiesFairValueReconciliationofLevel3AssetsandLiabilitiesMeasuredonaRecurringBasisDetails" roleURI="http://www.exeloncorp.com/role/FairValueofFinancialAssetsandLiabilitiesFairValueReconciliationofLevel3AssetsandLiabilitiesMeasuredonaRecurringBasisDetails">
        <link:definition>9954578 - Disclosure - Fair Value of Financial Assets and Liabilities - Fair Value Reconciliation of Level 3 Assets and Liabilities Measured on a Recurring Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialAssetsandLiabilitiesFairValueInputsAssetsQuantitativeInformationDetails" roleURI="http://www.exeloncorp.com/role/FairValueofFinancialAssetsandLiabilitiesFairValueInputsAssetsQuantitativeInformationDetails">
        <link:definition>9954579 - Disclosure - Fair Value of Financial Assets and Liabilities - Fair Value Inputs Assets Quantitative Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesNarrativeDetails" roleURI="http://www.exeloncorp.com/role/CommitmentsandContingenciesNarrativeDetails">
        <link:definition>9954580 - Disclosure - Commitments and Contingencies - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesScheduleofPHIMergerCommitmentsDetails" roleURI="http://www.exeloncorp.com/role/CommitmentsandContingenciesScheduleofPHIMergerCommitmentsDetails">
        <link:definition>9954581 - Disclosure - Commitments and Contingencies - Schedule of PHI Merger Commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesScheduleofCommercialCommitmentsDetails" roleURI="http://www.exeloncorp.com/role/CommitmentsandContingenciesScheduleofCommercialCommitmentsDetails">
        <link:definition>9954582 - Disclosure - Commitments and Contingencies - Schedule of Commercial Commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesScheduleofEnvironmentalLiabilitiesDetails" roleURI="http://www.exeloncorp.com/role/CommitmentsandContingenciesScheduleofEnvironmentalLiabilitiesDetails">
        <link:definition>9954583 - Disclosure - Commitments and Contingencies - Schedule of Environmental Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityNarrativeDetails" roleURI="http://www.exeloncorp.com/role/ShareholdersEquityNarrativeDetails">
        <link:definition>9954584 - Disclosure - Shareholders' Equity - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityScheduleofCommonStockWarrantsDetails" roleURI="http://www.exeloncorp.com/role/ShareholdersEquityScheduleofCommonStockWarrantsDetails">
        <link:definition>9954585 - Disclosure - Shareholders' Equity - Schedule of Common Stock Warrants (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityScheduleofPreferredStockDetails" roleURI="http://www.exeloncorp.com/role/ShareholdersEquityScheduleofPreferredStockDetails">
        <link:definition>9954586 - Disclosure - Shareholders' Equity - Schedule of Preferred Stock (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityScheduleofPreferenceStockDetails" roleURI="http://www.exeloncorp.com/role/ShareholdersEquityScheduleofPreferenceStockDetails">
        <link:definition>9954587 - Disclosure - Shareholders' Equity - Schedule of Preference Stock (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlansNarrativeDetails" roleURI="http://www.exeloncorp.com/role/StockBasedCompensationPlansNarrativeDetails">
        <link:definition>9954588 - Disclosure - Stock-Based Compensation Plans - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlansScheduleofStockbasedCompensationExpenseDetails" roleURI="http://www.exeloncorp.com/role/StockBasedCompensationPlansScheduleofStockbasedCompensationExpenseDetails">
        <link:definition>9954589 - Disclosure - Stock-Based Compensation Plans - Schedule of Stock-based Compensation Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlansComponentsofTaxBenefitsfromStockbasedCompensationDetails" roleURI="http://www.exeloncorp.com/role/StockBasedCompensationPlansComponentsofTaxBenefitsfromStockbasedCompensationDetails">
        <link:definition>9954590 - Disclosure - Stock-Based Compensation Plans - Components of Tax Benefits from Stock-based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlansSummaryofPerformanceShareAwardsActivityDetails" roleURI="http://www.exeloncorp.com/role/StockBasedCompensationPlansSummaryofPerformanceShareAwardsActivityDetails">
        <link:definition>9954591 - Disclosure - Stock-Based Compensation Plans - Summary of Performance Share Awards Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlansSummaryofWeightedAverageFairValueDetails" roleURI="http://www.exeloncorp.com/role/StockBasedCompensationPlansSummaryofWeightedAverageFairValueDetails">
        <link:definition>9954592 - Disclosure - Stock-Based Compensation Plans - Summary of Weighted Average Fair Value (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlansSummaryofNonvestedRestrictedStockUnitActivityDetails" roleURI="http://www.exeloncorp.com/role/StockBasedCompensationPlansSummaryofNonvestedRestrictedStockUnitActivityDetails">
        <link:definition>9954593 - Disclosure - Stock-Based Compensation Plans - Summary of Nonvested Restricted Stock Unit Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlansSummaryofWeightedAverageRestrictedStockUnitActivityDetails" roleURI="http://www.exeloncorp.com/role/StockBasedCompensationPlansSummaryofWeightedAverageRestrictedStockUnitActivityDetails">
        <link:definition>9954594 - Disclosure - Stock-Based Compensation Plans - Summary of Weighted Average Restricted Stock Unit Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlansSummaryofStockOptionExercisedDetails" roleURI="http://www.exeloncorp.com/role/StockBasedCompensationPlansSummaryofStockOptionExercisedDetails">
        <link:definition>9954595 - Disclosure - Stock-Based Compensation Plans - Summary of Stock Option Exercised (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ChangesinAccumulatedOtherComprehensiveIncomeScheduleofChangesinAOCIDetails" roleURI="http://www.exeloncorp.com/role/ChangesinAccumulatedOtherComprehensiveIncomeScheduleofChangesinAOCIDetails">
        <link:definition>9954596 - Disclosure - Changes in Accumulated Other Comprehensive Income - Schedule of Changes in AOCI (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ChangesinAccumulatedOtherComprehensiveIncomeIncomeTaxesAllocatedtoOtherComprehensiveIncomeLossComponentsDetails" roleURI="http://www.exeloncorp.com/role/ChangesinAccumulatedOtherComprehensiveIncomeIncomeTaxesAllocatedtoOtherComprehensiveIncomeLossComponentsDetails">
        <link:definition>9954597 - Disclosure - Changes in Accumulated Other Comprehensive Income - Income Taxes Allocated to Other Comprehensive Income (Loss) Components (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialInformationSummaryofTaxesotherthanincomeDetails" roleURI="http://www.exeloncorp.com/role/SupplementalFinancialInformationSummaryofTaxesotherthanincomeDetails">
        <link:definition>9954598 - Disclosure - Supplemental Financial Information - Summary of Taxes other than income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialInformationSummaryofOtherIncomeExpenseDetails" roleURI="http://www.exeloncorp.com/role/SupplementalFinancialInformationSummaryofOtherIncomeExpenseDetails">
        <link:definition>9954599 - Disclosure - Supplemental Financial Information - Summary of Other Income (Expense) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialInformationSupplementalCashFlowInformationDetails" roleURI="http://www.exeloncorp.com/role/SupplementalFinancialInformationSupplementalCashFlowInformationDetails">
        <link:definition>9954600 - Disclosure - Supplemental Financial Information - Supplemental Cash Flow Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialInformationSupplementalBalanceSheetInformationDetails" roleURI="http://www.exeloncorp.com/role/SupplementalFinancialInformationSupplementalBalanceSheetInformationDetails">
        <link:definition>9954601 - Disclosure - Supplemental Financial Information - Supplemental Balance Sheet Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsOperatingRevenuesandPurchasedPowerandFuelFromAffiliatesDetails" roleURI="http://www.exeloncorp.com/role/RelatedPartyTransactionsOperatingRevenuesandPurchasedPowerandFuelFromAffiliatesDetails">
        <link:definition>9954602 - Disclosure - Related Party Transactions - Operating Revenues and Purchased Power and Fuel From Affiliates (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsBSCandPHISCOServiceCompaniesDetails" roleURI="http://www.exeloncorp.com/role/RelatedPartyTransactionsBSCandPHISCOServiceCompaniesDetails">
        <link:definition>9954603 - Disclosure - Related Party Transactions - BSC and PHISCO Service Companies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsCurrentReceivablesFromPayablesToAffiliatesDetails" roleURI="http://www.exeloncorp.com/role/RelatedPartyTransactionsCurrentReceivablesFromPayablesToAffiliatesDetails">
        <link:definition>9954604 - Disclosure - Related Party Transactions - Current Receivables From/Payables To Affiliates (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsLongTermDebttoFinancingTrustsDetails" roleURI="http://www.exeloncorp.com/role/RelatedPartyTransactionsLongTermDebttoFinancingTrustsDetails">
        <link:definition>9954605 - Disclosure - Related Party Transactions - Long Term Debt to Financing Trusts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleICondensedFinancialInformationofParentExelonCorporateCondensedStatementsofOperationsandOtherComprehensiveIncomeDetails" roleURI="http://www.exeloncorp.com/role/ScheduleICondensedFinancialInformationofParentExelonCorporateCondensedStatementsofOperationsandOtherComprehensiveIncomeDetails">
        <link:definition>9954606 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Condensed Statements of Operations and Other Comprehensive Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleICondensedFinancialInformationofParentExelonCorporateCondensedStatementsofCashFlowsDetails" roleURI="http://www.exeloncorp.com/role/ScheduleICondensedFinancialInformationofParentExelonCorporateCondensedStatementsofCashFlowsDetails">
        <link:definition>9954607 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Condensed Statements of Cash Flows (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleICondensedFinancialInformationofParentExelonCorporateCondensedBalanceSheetDetails" roleURI="http://www.exeloncorp.com/role/ScheduleICondensedFinancialInformationofParentExelonCorporateCondensedBalanceSheetDetails">
        <link:definition>9954608 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Condensed Balance Sheet (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleICondensedFinancialInformationofParentExelonCorporateBasisofPresentationNarrativeDetails" roleURI="http://www.exeloncorp.com/role/ScheduleICondensedFinancialInformationofParentExelonCorporateBasisofPresentationNarrativeDetails">
        <link:definition>9954609 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Basis of Presentation - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleICondensedFinancialInformationofParentExelonCorporateDebtandCreditAgreementsNarrativeDetails" roleURI="http://www.exeloncorp.com/role/ScheduleICondensedFinancialInformationofParentExelonCorporateDebtandCreditAgreementsNarrativeDetails">
        <link:definition>9954610 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Debt and Credit Agreements - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleICondensedFinancialInformationofParentExelonCorporateDebtandCreditAgreementsScheduleofOutstandingLongtermDebtDetails" roleURI="http://www.exeloncorp.com/role/ScheduleICondensedFinancialInformationofParentExelonCorporateDebtandCreditAgreementsScheduleofOutstandingLongtermDebtDetails">
        <link:definition>9954611 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Debt and Credit Agreements - Schedule of Outstanding Long-term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleICondensedFinancialInformationofParentExelonCorporateDebtandCreditAgreementsScheduleofDebtMaturitiesDetails" roleURI="http://www.exeloncorp.com/role/ScheduleICondensedFinancialInformationofParentExelonCorporateDebtandCreditAgreementsScheduleofDebtMaturitiesDetails">
        <link:definition>9954612 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Debt and Credit Agreements - Schedule of Debt Maturities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleICondensedFinancialInformationofParentExelonCorporateRelatedPartyTransactionsSummaryofRelatedPartyTransactionsDetails" roleURI="http://www.exeloncorp.com/role/ScheduleICondensedFinancialInformationofParentExelonCorporateRelatedPartyTransactionsSummaryofRelatedPartyTransactionsDetails">
        <link:definition>9954613 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Related Party Transactions - Summary of Related Party Transactions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIIValuationandQualifyingAccountsScheduleDetails" roleURI="http://www.exeloncorp.com/role/ScheduleIIValuationandQualifyingAccountsScheduleDetails">
        <link:definition>9954614 - Disclosure - Schedule II - Valuation and Qualifying Accounts Schedule (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="exc_CollaborativeArrangementRightsAndObligationsUndividedInterest" abstract="false" name="CollaborativeArrangementRightsAndObligationsUndividedInterest" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAssumptionsUsedInCalculationsTable" abstract="true" name="DefinedBenefitPlanAssumptionsUsedInCalculationsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ConnectivLLCMember" abstract="true" name="ConnectivLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_EnvironmentalLiabilityBuzzardPoint" abstract="false" name="EnvironmentalLiabilityBuzzardPoint" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_LongTermMarginalStateIncomeTaxRateTableTextBlock" abstract="false" name="LongTermMarginalStateIncomeTaxRateTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_NoParPreferredStockMember" abstract="true" name="NoParPreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_RegulatoryMattersPendingRateCasesTable" abstract="true" name="RegulatoryMattersPendingRateCasesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_CommitmentsandContingenciesLineItems" abstract="true" name="CommitmentsandContingenciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_PHIMergerCommitmentsLineItems" abstract="true" name="PHIMergerCommitmentsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_BasisPointsComEdSymmetricalPerformanceAdjustments" abstract="false" name="BasisPointsComEdSymmetricalPerformanceAdjustments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="exc_IntercompanyMoneyPoolInvestmentsContributions" abstract="false" name="IntercompanyMoneyPoolInvestmentsContributions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PensionandPostRetirementPlanMergerCostsMember" abstract="true" name="PensionandPostRetirementPlanMergerCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_USBTermLoanJuly2023Member" abstract="true" name="USBTermLoanJuly2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_BaltimoreGasAndElectricCompanyMember" abstract="true" name="BaltimoreGasAndElectricCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_InterestRateCapNotional6monthMember" abstract="true" name="InterestRateCapNotional6monthMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_TaxYear20172018Member" abstract="true" name="TaxYear20172018Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostTableTextBlock" abstract="false" name="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_PreferenceStockRedeemedMember" abstract="true" name="PreferenceStockRedeemedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PecoTrustThreeAffiliateMember" abstract="true" name="PecoTrustThreeAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_EXCFederalAndStateMember" abstract="true" name="EXCFederalAndStateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ConstantMaturityTreasuryInterestRateSwapsMember" abstract="true" name="ConstantMaturityTreasuryInterestRateSwapsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_IllinoisPowerAgencyMember" abstract="true" name="IllinoisPowerAgencyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_CapitalizedInterestAndAfudcTable" abstract="true" name="CapitalizedInterestAndAfudcTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_RelatedPartyTransactionCapitalizedCostsSupportServices" abstract="false" name="RelatedPartyTransactionCapitalizedCostsSupportServices" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DelawareAndNewJerseyMember" abstract="true" name="DelawareAndNewJerseyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_StockBasedCompensationTaxBenefitTableTextBlock" abstract="false" name="StockBasedCompensationTaxBenefitTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_ShortTermDebt03142023Member" abstract="true" name="ShortTermDebt03142023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_TransferOfCashRestrictedCashAndCashEquivalentsToConstellation" abstract="false" name="TransferOfCashRestrictedCashAndCashEquivalentsToConstellation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AverageRemainingServicePeriodOfActiveParticipantsInPlan" abstract="false" name="AverageRemainingServicePeriodOfActiveParticipantsInPlan" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="exc_AccrualForMgpInvestigationAndRemediationMember" abstract="true" name="AccrualForMgpInvestigationAndRemediationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_UnderRecoveredDecouplingRevenueTotalMember" abstract="true" name="UnderRecoveredDecouplingRevenueTotalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ExelonGenerationCoLlcAffiliateMember" abstract="true" name="ExelonGenerationCoLlcAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PublicUtilitiesApprovedRateIncreaseDecreaseOffsetsDomain" abstract="true" name="PublicUtilitiesApprovedRateIncreaseDecreaseOffsetsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ZECRegulatoryAssetMember" abstract="true" name="ZECRegulatoryAssetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAmountsRecognizedInRegulatoryAssetsBeforeTax" abstract="false" name="DefinedBenefitPlanAmountsRecognizedInRegulatoryAssetsBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DeferredTaxLiabilitiesAssetDeferredExpenseDebtIssuanceCosts" abstract="false" name="DeferredTaxLiabilitiesAssetDeferredExpenseDebtIssuanceCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_COVID19AllRegistrantsPolicyTextBlock" abstract="false" name="COVID19AllRegistrantsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_ApprovedCapitalExpenditureIIP20" abstract="false" name="ApprovedCapitalExpenditureIIP20" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ChangeinReceivablesFromPayablesToAffiliatesNet" abstract="false" name="ChangeinReceivablesFromPayablesToAffiliatesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_FairValueOfSupplyContractMember" abstract="true" name="FairValueOfSupplyContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PecoEnergyCoAffiliateMember" abstract="true" name="PecoEnergyCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_AccrualForEnvironmentalLossContingenciesMaterialComponentsAxis" abstract="true" name="AccrualForEnvironmentalLossContingenciesMaterialComponentsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_NewJersey2023ElectricDistributionBaseRateCaseMember" abstract="true" name="NewJersey2023ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_MarylandReliefActFunds" abstract="false" name="MarylandReliefActFunds" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PenaltyDomain" abstract="true" name="PenaltyDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateDesignChanges" abstract="false" name="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateDesignChanges" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_EstimatedPercentOfGasPurchasesBeingHedged" abstract="false" name="EstimatedPercentOfGasPurchasesBeingHedged" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_MultiYearPlanReconciliationMember" abstract="true" name="MultiYearPlanReconciliationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OverRecoveredEnergyandNaturalGasCostsMember" abstract="true" name="OverRecoveredEnergyandNaturalGasCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_IncomeTaxesTable" abstract="true" name="IncomeTaxesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_CollaborativeArrangementRightsAndObligationsExtensionTerm" abstract="false" name="CollaborativeArrangementRightsAndObligationsExtensionTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="exc_RemainingCommitmentMember" abstract="true" name="RemainingCommitmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleOfLineOfCreditShortTermAndLongTermDebtTable" abstract="true" name="ScheduleOfLineOfCreditShortTermAndLongTermDebtTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_SupplementalBalanceSheetInformationLineItems" abstract="true" name="SupplementalBalanceSheetInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_InsurersSettlementPayment" abstract="false" name="InsurersSettlementPayment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_EquitySecuritiesOfferingAxis" abstract="true" name="EquitySecuritiesOfferingAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_AmortizationOfPriorServiceCostBenefitAndActuarialLossAbstract" abstract="true" name="AmortizationOfPriorServiceCostBenefitAndActuarialLossAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_ScheduleOfBasisSpreadTableTextBlock" abstract="false" name="ScheduleOfBasisSpreadTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsBeforeTax" abstract="false" name="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_UnderRecoveredDecouplingRevenueMember" abstract="true" name="UnderRecoveredDecouplingRevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_OtherNonCashDomain" abstract="true" name="OtherNonCashDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_CommonwealthEdisonCoMember" abstract="true" name="CommonwealthEdisonCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_CommonwealthEdisonCoAffiliateMember" abstract="true" name="CommonwealthEdisonCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PecoTrustFourAffiliateMember" abstract="true" name="PecoTrustFourAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_TotalAmountsOfInterestAndPenaltiesRecognizedTableTextBlock" abstract="false" name="TotalAmountsOfInterestAndPenaltiesRecognizedTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_RateRegulatedElectricRevenuesMember" abstract="true" name="RateRegulatedElectricRevenuesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PublicUtilitiesEnergyEfficiencyRevenueTableTextBlock" abstract="false" name="PublicUtilitiesEnergyEfficiencyRevenueTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_PaymentsToOtherNoncontrollingInterests" abstract="false" name="PaymentsToOtherNoncontrollingInterests" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PeriodAxis" abstract="true" name="PeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ScheduleOfDefinedContributionsTableTextBlock" abstract="false" name="ScheduleOfDefinedContributionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_ExelonConsolidationMember" abstract="true" name="ExelonConsolidationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ExpiredConstantMaturityTreasuryInterestRateSwapsDomain" abstract="true" name="ExpiredConstantMaturityTreasuryInterestRateSwapsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CashCollateralHeldWithExternalCounterpartiesTableTextBlock" abstract="false" name="CashCollateralHeldWithExternalCounterpartiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_UsGaap_DefinedBenefitPlanActualAssetReturns" abstract="false" name="UsGaap_DefinedBenefitPlanActualAssetReturns" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_ScheduleOfWeightedAverageRemainingLeaseTermsAndDiscountRateForOurOperatingLeasesTableTextBlock" abstract="false" name="ScheduleOfWeightedAverageRemainingLeaseTermsAndDiscountRateForOurOperatingLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_ExelonSignificantSubsidiariesMember" abstract="true" name="ExelonSignificantSubsidiariesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_UnamortizedEnergyContractsMember" abstract="true" name="UnamortizedEnergyContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ChangeInContractWithCustomerAssetAndLiabilityLineItems" abstract="true" name="ChangeInContractWithCustomerAssetAndLiabilityLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_SupplementalFinancialInformationAbstract" abstract="true" name="SupplementalFinancialInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAssumptionsUsedInCalculationsLineItems" abstract="true" name="DefinedBenefitPlanAssumptionsUsedInCalculationsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_ExelonEnterpriseMember" abstract="true" name="ExelonEnterpriseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleOfOtherComprehensiveIncomeLossTaxTableTextBlock" abstract="false" name="ScheduleOfOtherComprehensiveIncomeLossTaxTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_BenefitEligibilityAgeMember" abstract="true" name="BenefitEligibilityAgeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_COVID19RegulatoryAssetMember" abstract="true" name="COVID19RegulatoryAssetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_EnergyEfficiencyAndDemandResponseProgramsRLMember" abstract="true" name="EnergyEfficiencyAndDemandResponseProgramsRLMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpensesMember" abstract="true" name="UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_FiniteLivedIntangibleLiabilitiesAccumulatedAmortization" abstract="false" name="FiniteLivedIntangibleLiabilitiesAccumulatedAmortization" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DefinedOtherPostretirementBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" abstract="false" name="DefinedOtherPostretirementBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_NetInterestReceivablePayableRelatedToUncertainTaxPositions" abstract="false" name="NetInterestReceivablePayableRelatedToUncertainTaxPositions" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_InitialRequestedRevenueIncrease20242027" abstract="false" name="InitialRequestedRevenueIncrease20242027" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRateDesignChanges" abstract="false" name="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRateDesignChanges" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_MilesOfTransmissionVoltageLines" abstract="false" name="MilesOfTransmissionVoltageLines" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:lengthItemType"/>
  <xs:element id="exc_PotomacElectricPowerCompanyMember" abstract="true" name="PotomacElectricPowerCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinStock" abstract="false" name="SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinStock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_PreferredStockTableTextBlock" abstract="false" name="PreferredStockTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_DefinedBenefitPlanPurchases" abstract="false" name="DefinedBenefitPlanPurchases" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_UnderRecoveredEnergyandNaturalGasCostsMember" abstract="true" name="UnderRecoveredEnergyandNaturalGasCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PeriodDomain" abstract="true" name="PeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DerivativesDesignatedAsHedgingInstrumentsLiabilitiesMember" abstract="true" name="DerivativesDesignatedAsHedgingInstrumentsLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CommonElectricAndGasTAndDEquipmentMember" abstract="true" name="CommonElectricAndGasTAndDEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_VEBAMember" abstract="true" name="VEBAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_CurrentRequestedRevenueIncrease20242027" abstract="false" name="CurrentRequestedRevenueIncrease20242027" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ExternalCounterpartiesMember" abstract="true" name="ExternalCounterpartiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_TaxYear20192021Member" abstract="true" name="TaxYear20192021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DeferredTaxLiabilitiesAssetsRegulatoryAssetsAndLiabilities" abstract="false" name="DeferredTaxLiabilitiesAssetsRegulatoryAssetsAndLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_BeneficialElectrificationApprovedAnnualSpending" abstract="false" name="BeneficialElectrificationApprovedAnnualSpending" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PepcoHoldingsLLCMember" abstract="true" name="PepcoHoldingsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleOfLesseeFinanceLeaseLiabilityMaturityTable" abstract="true" name="ScheduleOfLesseeFinanceLeaseLiabilityMaturityTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_RegulatoryAssetsAndLiabilitiesByYearAxis" abstract="true" name="RegulatoryAssetsAndLiabilitiesByYearAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_PepcoHoldingsLLCAffiliateMember" abstract="true" name="PepcoHoldingsLLCAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsChangeInPerformanceWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsChangeInPerformanceWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="exc_UniversalServiceFundChargeUnderRecoveryMember" abstract="true" name="UniversalServiceFundChargeUnderRecoveryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EconomicHedgesMember" abstract="true" name="EconomicHedgesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_FMB490Feb2033Member" abstract="true" name="FMB490Feb2033Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_AlternativeRevenueMember" abstract="true" name="AlternativeRevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleofOperatingLeaseLeaseIncomeTable" abstract="true" name="ScheduleofOperatingLeaseLeaseIncomeTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_FairValueOfSettledPerformanceShareAwards" abstract="false" name="FairValueOfSettledPerformanceShareAwards" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_Maryland2023GasDistributionReconciliationRateCaseMember" abstract="true" name="Maryland2023GasDistributionReconciliationRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_LongTermDebtToFinancingTrusts" abstract="false" name="LongTermDebtToFinancingTrusts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AdvancedMeteringInfrastructureLegacyMeterCostsMember" abstract="true" name="AdvancedMeteringInfrastructureLegacyMeterCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinCashifAgreementConditionsareMet" abstract="false" name="SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinCashifAgreementConditionsareMet" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_AssetRetirementObligationRollForwardAnalysisLineItems" abstract="true" name="AssetRetirementObligationRollForwardAnalysisLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_SupplementalBalanceSheetInformationRelatedtoLesseeRightofUseAssetsandLeaseLiabilitiesTableTextBlock" abstract="false" name="SupplementalBalanceSheetInformationRelatedtoLesseeRightofUseAssetsandLeaseLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_PerformanceMetricsPenaltyMember" abstract="true" name="PerformanceMetricsPenaltyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_RegulatoryAssets2023Member" abstract="true" name="RegulatoryAssets2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DedicatedFacilitiesChargeMember" abstract="true" name="DedicatedFacilitiesChargeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_MgpSiteContingencyMonitoringCount" abstract="false" name="MgpSiteContingencyMonitoringCount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="exc_DCPLUGChargeMember" abstract="true" name="DCPLUGChargeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_MaximumIncreaseOfRevenueRequirement" abstract="false" name="MaximumIncreaseOfRevenueRequirement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_MarkToMarketDerivativeLiabilitiesMember" abstract="true" name="MarkToMarketDerivativeLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_IllinoisChamberOfCommerceMember" abstract="true" name="IllinoisChamberOfCommerceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ChangesInExelonPHIIntercompanyMoneyPoolFinancing" abstract="false" name="ChangesInExelonPHIIntercompanyMoneyPoolFinancing" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RegulatoryMattersCompletedRateCasesTable" abstract="true" name="RegulatoryMattersCompletedRateCasesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_AuditorInformationAbstract" abstract="true" name="AuditorInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_A2023Member" abstract="true" name="A2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_EmployeeBenefitTrustsandInvestmentsMember" abstract="true" name="EmployeeBenefitTrustsandInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_SMBCTermLoanJuly2023Member" abstract="true" name="SMBCTermLoanJuly2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_RegulatoryLiabilities2022Member" abstract="true" name="RegulatoryLiabilities2022Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ComedFinancingThreeAffiliateMember" abstract="true" name="ComedFinancingThreeAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_FiniteLivedIntangibleLiabilitiesByMajorClassAxis" abstract="true" name="FiniteLivedIntangibleLiabilitiesByMajorClassAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ShortTermDebtSOFRplus100May72024Member" abstract="true" name="ShortTermDebtSOFRplus100May72024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_SupplementalStatementofOperationsInformationLineItems" abstract="true" name="SupplementalStatementofOperationsInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_ComEd2023EnergyEfficiencyFormulaRateMember" abstract="true" name="ComEd2023EnergyEfficiencyFormulaRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CommunityAndMinorityFacilitiesMember" abstract="true" name="CommunityAndMinorityFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_LongTermIncentivePlanMember" abstract="true" name="LongTermIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ReturnOnBorrowedFundsMember" abstract="true" name="ReturnOnBorrowedFundsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsBeforeTaxNotYetRecognized" abstract="false" name="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsBeforeTaxNotYetRecognized" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_A2025Member" abstract="true" name="A2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_SignificantAccountingPoliciesAdditionalNarrativeInformationLineItems" abstract="true" name="SignificantAccountingPoliciesAdditionalNarrativeInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_MinimumExpectationOfTaxPositionToBeRealized" abstract="false" name="MinimumExpectationOfTaxPositionToBeRealized" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_DelmarvaPowerandLightCompanyMember" abstract="true" name="DelmarvaPowerandLightCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_IncomeTaxAdditionalNarrativeInformationLineItems" abstract="true" name="IncomeTaxAdditionalNarrativeInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_Maryland2022ElectricDistributionBaseRateCaseMember" abstract="true" name="Maryland2022ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_RelatedPartyTransactionsLongTermDebttoFinancingTrustsTableTextBlock" abstract="false" name="RelatedPartyTransactionsLongTermDebttoFinancingTrustsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_MovementinAccumulatedOtherComprehensiveIncomeRollForward" abstract="true" name="MovementinAccumulatedOtherComprehensiveIncomeRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_FiniteLivedIntangibleLiabilitiesByMajorClassDomain" abstract="true" name="FiniteLivedIntangibleLiabilitiesByMajorClassDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_TheBuyerMember" abstract="true" name="TheBuyerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_LeaseArrangementsTypeDomain" abstract="true" name="LeaseArrangementsTypeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodUndistributedWeightedAverageExercisePrice" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodUndistributedWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="exc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" abstract="false" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_ShortTermDebtSOFRplus075Oct2023Member" abstract="true" name="ShortTermDebtSOFRplus075Oct2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_EnergyEfficiencyAndDemandResponseProgramsMember" abstract="true" name="EnergyEfficiencyAndDemandResponseProgramsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ExpiredConstantMaturityTreasuryInterestRateSwapsAxis" abstract="true" name="ExpiredConstantMaturityTreasuryInterestRateSwapsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_BasisPointsForComEdsElectricDistributionRates" abstract="false" name="BasisPointsForComEdsElectricDistributionRates" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="exc_OperatingLeasesOfLessorDisclosureTableTextBlock" abstract="false" name="OperatingLeasesOfLessorDisclosureTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsNetPriorServiceCostCreditBeforeTax" abstract="false" name="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsNetPriorServiceCostCreditBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ResidentialMember" abstract="true" name="ResidentialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_AllocationOfFederalTaxBenefitUnderTaxSharingAgreement" abstract="false" name="AllocationOfFederalTaxBenefitUnderTaxSharingAgreement" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RegulatoryLiabilitiesOtherMember" abstract="true" name="RegulatoryLiabilitiesOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DeferredIncomeTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCredit" abstract="false" name="DeferredIncomeTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_FairValueAssetsLiabilitiesMeasuredOnRecurringBasisTable" abstract="true" name="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedinPeriodUndistributed" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedinPeriodUndistributed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="exc_DeferredTaxLiabilityAdjustmentNoncontrollingInterest" abstract="false" name="DeferredTaxLiabilityAdjustmentNoncontrollingInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_LesseeOperatingAndFinanceLeasesTermsOfContracts" abstract="false" name="LesseeOperatingAndFinanceLeasesTermsOfContracts" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="exc_CollateralMember" abstract="true" name="CollateralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DueFromToRelatedPartyCurrent" abstract="false" name="DueFromToRelatedPartyCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_StockOptionsExercisedTableTextBlock" abstract="false" name="StockOptionsExercisedTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_IncrementalCollateralForLossOfInvestmentGradeCreditRating" abstract="false" name="IncrementalCollateralForLossOfInvestmentGradeCreditRating" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PECOFinancingTrustsMember" abstract="true" name="PECOFinancingTrustsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PotomacElectricPowerCoAffiliateMember" abstract="true" name="PotomacElectricPowerCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_AccumulatedOtherComprehensiveIncomeGainNetOfTax" abstract="false" name="AccumulatedOtherComprehensiveIncomeGainNetOfTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RelatedPartyTransactionsCurrentReceivablesFromPayablesToAffiliatesTableTextBlock" abstract="false" name="RelatedPartyTransactionsCurrentReceivablesFromPayablesToAffiliatesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_DefinedBenefitPlanFairValueOfPlanAssetsTableTextBlock" abstract="false" name="DefinedBenefitPlanFairValueOfPlanAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_ScheduleofLesseeOperatingLeaseLiabilityMaturityLineItems" abstract="true" name="ScheduleofLesseeOperatingLeaseLiabilityMaturityLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_RegulatedOperationsCapitalizedRatemakingAmountsNotRecognizedAbstract" abstract="true" name="RegulatedOperationsCapitalizedRatemakingAmountsNotRecognizedAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_Pennsylvania2022NaturalGasDistributionBaseRateCaseMember" abstract="true" name="Pennsylvania2022NaturalGasDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DeferredTaxLiabilitiesDeferredPensionAndOtherPostretirementBenefitObligation" abstract="false" name="DeferredTaxLiabilitiesDeferredPensionAndOtherPostretirementBenefitObligation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ScheduleofEnergyEfficiencyFormulaRateUpdatesTable" abstract="true" name="ScheduleofEnergyEfficiencyFormulaRateUpdatesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_PensionAndOtherPostRetirementBenefitMember" abstract="true" name="PensionAndOtherPostRetirementBenefitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_InterestExpenseToAffiliates" abstract="false" name="InterestExpenseToAffiliates" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RenewablePortfolioStandardsCostsMember" abstract="true" name="RenewablePortfolioStandardsCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_RegulatoryMattersAdditionalNarrativeInformationLineItems" abstract="true" name="RegulatoryMattersAdditionalNarrativeInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_Maryland2020GasDistributionBaseRateCaseMember" abstract="true" name="Maryland2020GasDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_Revenue" abstract="false" name="Revenue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_CaponEquityComponentofRateofReturnonCommonEquityinFederalEnergyRegulatoryCommitteeComplaint" abstract="false" name="CaponEquityComponentofRateofReturnonCommonEquityinFederalEnergyRegulatoryCommitteeComplaint" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_InterestRateSwapNotional10YRMember" abstract="true" name="InterestRateSwapNotional10YRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_FiniteLivedIntangibleLiabilitiesNet" abstract="false" name="FiniteLivedIntangibleLiabilitiesNet" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_OtherMember" abstract="true" name="OtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisFinancialStatementCaptionsLineItems" abstract="true" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisFinancialStatementCaptionsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_SettlingShareholdersAttorneyFees" abstract="false" name="SettlingShareholdersAttorneyFees" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_InterestRateDerivativeAssetsMember" abstract="true" name="InterestRateDerivativeAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ExelonGenerationCoLLCMember" abstract="true" name="ExelonGenerationCoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ExpectedRetirementPeriodMember" abstract="true" name="ExpectedRetirementPeriodMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ScheduleOfCapitalizedInterestAndAFUDCTableTextBlock" abstract="false" name="ScheduleOfCapitalizedInterestAndAFUDCTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_OtherDecommissioningRelatedActivity" abstract="false" name="OtherDecommissioningRelatedActivity" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_A2026Member" abstract="true" name="A2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_CapitalizedInterestAndAfudcLineItems" abstract="true" name="CapitalizedInterestAndAfudcLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_FiniteLivedIntangibleAssetsAndLiabilitiesLineItems" abstract="true" name="FiniteLivedIntangibleAssetsAndLiabilitiesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsGainsLossesBeforeTax" abstract="false" name="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsGainsLossesBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ApprovedCapitalExpenditure" abstract="false" name="ApprovedCapitalExpenditure" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_EconomicHedgingInstrumentLiabilitesMember" abstract="true" name="EconomicHedgingInstrumentLiabilitesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DifferencebetweenCarryingValueandFairValueMember" abstract="true" name="DifferencebetweenCarryingValueandFairValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleofComponentsofLeaseCostTable" abstract="true" name="ScheduleofComponentsofLeaseCostTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_TotalTransactionAndTransitionCostsIncurredRelatedToTheSeparation" abstract="false" name="TotalTransactionAndTransitionCostsIncurredRelatedToTheSeparation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_OtherReceivablesMember" abstract="true" name="OtherReceivablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_InterestRateDerivativeLiabilities" abstract="false" name="InterestRateDerivativeLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PublicUtilitiesRequestedRateIncreaseDecreasePriorYearAnnualReconciliation" abstract="false" name="PublicUtilitiesRequestedRateIncreaseDecreasePriorYearAnnualReconciliation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRateTable" abstract="true" name="EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRateTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_FairValueOfLongTermDebtMember" abstract="true" name="FairValueOfLongTermDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PenaltyAxis" abstract="true" name="PenaltyAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_InterestRateSwapTerminatedMember" abstract="true" name="InterestRateSwapTerminatedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleofSupplementalCashFlowInformationRelatedtoLeasesTableTextBlock" abstract="false" name="ScheduleofSupplementalCashFlowInformationRelatedtoLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_TrueUpAdjustmentsToDecouplingMechanismsAndFormulaRate" abstract="false" name="TrueUpAdjustmentsToDecouplingMechanismsAndFormulaRate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_QualifiedDefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" abstract="false" name="QualifiedDefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RabbiTrustInvestmentsMember" abstract="true" name="RabbiTrustInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_LeaseArrangementsTypeAxis" abstract="true" name="LeaseArrangementsTypeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_UIILLCMember" abstract="true" name="UIILLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ShortTermDebtSOFRplus075Jan2023Member" abstract="true" name="ShortTermDebtSOFRplus075Jan2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_AccumulatedOtherComprehensiveIncomeLossTextBlock" abstract="false" name="AccumulatedOtherComprehensiveIncomeLossTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_CommonStockNarrativeInformationLineItems" abstract="true" name="CommonStockNarrativeInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_A2023TransmissionFormulaRateRevenueReductionMember" abstract="true" name="A2023TransmissionFormulaRateRevenueReductionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PensionAndOtherPostretirementBenefitContributionsTableTextBlock" abstract="false" name="PensionAndOtherPostretirementBenefitContributionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_InterestIncomeFromAffiliatesNet" abstract="false" name="InterestIncomeFromAffiliatesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_NonnuclearDecommissioningAssetRetirementObligationMember" abstract="true" name="NonnuclearDecommissioningAssetRetirementObligationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PreferenceStockSharesAuthorized" abstract="false" name="PreferenceStockSharesAuthorized" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="exc_ScheduleOfTaxesExcludingIncomeAndExciseTaxesTableTextBlock" abstract="false" name="ScheduleOfTaxesExcludingIncomeAndExciseTaxesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_VoltageOfTransmissionLines" abstract="false" name="VoltageOfTransmissionLines" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="exc_SupplementalStatementofOperationsInformationTable" abstract="true" name="SupplementalStatementofOperationsInformationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_PHIMergerCommitmentsTable" abstract="true" name="PHIMergerCommitmentsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_RegulatoryAssetsAndLiabilitiesByYearDomain" abstract="true" name="RegulatoryAssetsAndLiabilitiesByYearDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_TotalTransactionCostsRelatingToTheSeparation" abstract="false" name="TotalTransactionCostsRelatingToTheSeparation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_NuclearDecommissioningMember" abstract="true" name="NuclearDecommissioningMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_CollaborativeArrangementRightsAndObligationsNumberOfExtensions" abstract="false" name="CollaborativeArrangementRightsAndObligationsNumberOfExtensions" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="exc_PublicAuthoritiesElectricRailroadsMember" abstract="true" name="PublicAuthoritiesElectricRailroadsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_AssetRetirementObligationRollForwardAnalysisTable" abstract="true" name="AssetRetirementObligationRollForwardAnalysisTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_DiscontinuedOperationsIncomeStatementTableTextBlock" abstract="false" name="DiscontinuedOperationsIncomeStatementTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_CommonStockSharesReservedForWarrantConversion" abstract="false" name="CommonStockSharesReservedForWarrantConversion" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="exc_PropertyPlantAndEquipmentDepreciationAsPercentOfAverageServiceLifeRate" abstract="false" name="PropertyPlantAndEquipmentDepreciationAsPercentOfAverageServiceLifeRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_RelatedPartyTransactionsBSCandPHISCOServiceCompaniesTableTextBlock" abstract="false" name="RelatedPartyTransactionsBSCandPHISCOServiceCompaniesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_CarbonMitigationCreditRiderMember" abstract="true" name="CarbonMitigationCreditRiderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_NewFreedomSwitchingMember" abstract="true" name="NewFreedomSwitchingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_Illinois2023ElectricDistributionBaseRateCaseMember" abstract="true" name="Illinois2023ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_CollaborativeArrangementRightsAndObligationsPeriod" abstract="false" name="CollaborativeArrangementRightsAndObligationsPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="exc_ScheduleOfWeightedAverageRemainingDiscountRateForOperatingLeasesTableTextBlock" abstract="false" name="ScheduleOfWeightedAverageRemainingDiscountRateForOperatingLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_IncomeTaxAdditionalNarrativeInformationTable" abstract="true" name="IncomeTaxAdditionalNarrativeInformationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_EquitySecuritiesOfferingDomain" abstract="true" name="EquitySecuritiesOfferingDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PNCTermLoanJuly2023Member" abstract="true" name="PNCTermLoanJuly2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_SeparationCashPayment" abstract="false" name="SeparationCashPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PHIServiceCoAffiliateMember" abstract="true" name="PHIServiceCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_OffsetsMember" abstract="true" name="OffsetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DelawareRiverCrossingMember" abstract="true" name="DelawareRiverCrossingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeBeforeTax" abstract="false" name="DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_TransportationMember" abstract="true" name="TransportationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_CommitmentsAndContingenciesTable" abstract="true" name="CommitmentsAndContingenciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_EffectiveIncomeTaxRateReconciliationChangeinEnactedTaxLawPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeinEnactedTaxLawPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_IncomeTaxExpenseRelatedToSeparation" abstract="false" name="IncomeTaxExpenseRelatedToSeparation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_OtherNonCashAxis" abstract="true" name="OtherNonCashAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ScheduleOfPensionAndOtherPostretirementBenefitCostsTableTextBlock" abstract="false" name="ScheduleOfPensionAndOtherPostretirementBenefitCostsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_IncomeTaxesLineItems" abstract="true" name="IncomeTaxesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_LoansPayableTwoMember" abstract="true" name="LoansPayableTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_Maryland2023ElectricDistributionReconciliationRateCaseMember" abstract="true" name="Maryland2023ElectricDistributionReconciliationRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_SupplementalCashFlowInformationLineItems" abstract="true" name="SupplementalCashFlowInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_FinanceLeasesMember" abstract="true" name="FinanceLeasesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DeferredStormCostsMember" abstract="true" name="DeferredStormCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleofLessorOperatingLeasePaymentstobeReceivedMaturityTable" abstract="true" name="ScheduleofLessorOperatingLeasePaymentstobeReceivedMaturityTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_FiniteLivedIntangibleLiabilitiesGross" abstract="false" name="FiniteLivedIntangibleLiabilitiesGross" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RateRegulatedNaturalGasRevenuesMember" abstract="true" name="RateRegulatedNaturalGasRevenuesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_RelatedPartyTransactionOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses" abstract="false" name="RelatedPartyTransactionOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DistributionOfConstellation" abstract="false" name="DistributionOfConstellation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRateLineItems" abstract="true" name="EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRateLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_Illinois2023ElectricDistributionReconciliationRateCaseMember" abstract="true" name="Illinois2023ElectricDistributionReconciliationRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleOfLesseeFinanceLeaseLiabilityMaturityLineItems" abstract="true" name="ScheduleOfLesseeFinanceLeaseLiabilityMaturityLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_FairValueReconciliationOfLevel3AssetsAndLiabilitiesMeasuredOnARecurringBasisTable" abstract="true" name="FairValueReconciliationOfLevel3AssetsAndLiabilitiesMeasuredOnARecurringBasisTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_Maryland2020ElectricDistributionBaseRateCaseMember" abstract="true" name="Maryland2020ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_RevenuesFromRelatedParties" abstract="false" name="RevenuesFromRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AccountsReceivableAllowanceForCreditLossLineItems" abstract="true" name="AccountsReceivableAllowanceForCreditLossLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_AdvancedMeteringInfrastructureDeploymentCostsMember" abstract="true" name="AdvancedMeteringInfrastructureDeploymentCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PublicUtilitiesApprovedRateIncreaseDecreasePriorYearAnnualReconciliation" abstract="false" name="PublicUtilitiesApprovedRateIncreaseDecreasePriorYearAnnualReconciliation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RegulatoryMattersCompletedRateCasesLineItems" abstract="true" name="RegulatoryMattersCompletedRateCasesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_DefinedBenefitPlanExpectedFutureBenefitPaymentsTotal" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPaymentsTotal" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_BaltimoreGasAndElectricCompanyAffiliateMember" abstract="true" name="BaltimoreGasAndElectricCompanyAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsAmortizationOfPriorServiceCost" abstract="false" name="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsAmortizationOfPriorServiceCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AtlanticCityElectricCoAffiliateMember" abstract="true" name="AtlanticCityElectricCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_FairValueOfSettledRestrictedStockUnits" abstract="false" name="FairValueOfSettledRestrictedStockUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_A2024Member" abstract="true" name="A2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_LongTermMarginalStateIncomeTaxRateTable" abstract="true" name="LongTermMarginalStateIncomeTaxRateTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_AllocationofFederalTaxBenefitUnderTaxSharingAgreementTableTextBlockTableTextBlock" abstract="false" name="AllocationofFederalTaxBenefitUnderTaxSharingAgreementTableTextBlockTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_CashPaidRefundedDuringtheYearAbstract" abstract="true" name="CashPaidRefundedDuringtheYearAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_AccruedCompensationCurrent" abstract="false" name="AccruedCompensationCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DiscontinuedOperationsCashFlowsTableTextBlock" abstract="false" name="DiscontinuedOperationsCashFlowsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_InterestRateSwapNotional5YRMember" abstract="true" name="InterestRateSwapNotional5YRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_AccrualForEnvironmentalLossContingenciesMaterialComponentsDomain" abstract="true" name="AccrualForEnvironmentalLossContingenciesMaterialComponentsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_A2023TransmissionFormulaRateAnnualUpdateMember" abstract="true" name="A2023TransmissionFormulaRateAnnualUpdateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_SmallCommercialIndustrialMember" abstract="true" name="SmallCommercialIndustrialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_OtherLegalEntitiesMember" abstract="true" name="OtherLegalEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PreferenceSecuritiesTableTextBlock" abstract="false" name="PreferenceSecuritiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_OverRecoveredRevenueDecouplingMember" abstract="true" name="OverRecoveredRevenueDecouplingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_OtherAccountsReceivableMember" abstract="true" name="OtherAccountsReceivableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanRegulatoryAssetsBeforeTax" abstract="false" name="DefinedBenefitPlanRegulatoryAssetsBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RelatedPartyTransactionUtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses" abstract="false" name="RelatedPartyTransactionUtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ScheduleofEnergyEfficiencyFormulaRateUpdatesLineItems" abstract="true" name="ScheduleofEnergyEfficiencyFormulaRateUpdatesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_A2027Member" abstract="true" name="A2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleofLesseeOperatingLeaseLiabilityMaturityTable" abstract="true" name="ScheduleofLesseeOperatingLeaseLiabilityMaturityTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_PublicUtilitiesApprovedRateIncreaseDecreaseOffsetsAxis" abstract="true" name="PublicUtilitiesApprovedRateIncreaseDecreaseOffsetsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_BusinessServicesCompanyMember" abstract="true" name="BusinessServicesCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_OtherAffiliateMember" abstract="true" name="OtherAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DeferredProsecutionAgreementLiabilityCurrent" abstract="false" name="DeferredProsecutionAgreementLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_CollaborativeArrangementRightsAndObligationsNumberOfAdditionalUndividedInterests" abstract="false" name="CollaborativeArrangementRightsAndObligationsNumberOfAdditionalUndividedInterests" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="exc_OtherRegulatedRevenueMember" abstract="true" name="OtherRegulatedRevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsPriorServiceCostCreditBeforeTax" abstract="false" name="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsPriorServiceCostCreditBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_OtherNonCashMember" abstract="true" name="OtherNonCashMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_MARYLANDPUBLICSERVICECOMMISSIONDomain" abstract="true" name="MARYLANDPUBLICSERVICECOMMISSIONDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_NetAssetsPendingTransactionsExcluded" abstract="false" name="NetAssetsPendingTransactionsExcluded" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_FMB530Feb2053Member" abstract="true" name="FMB530Feb2053Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_EnvironmentalLiabilityAnacostia" abstract="false" name="EnvironmentalLiabilityAnacostia" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AdditionalEquitySecuritiesOfferingMember" abstract="true" name="AdditionalEquitySecuritiesOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIncludedInRegulatoryassets" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIncludedInRegulatoryassets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinCash" abstract="false" name="SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinCash" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_RegulatoryMattersAdditionalNarrativeInformationTable" abstract="true" name="RegulatoryMattersAdditionalNarrativeInformationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_PHIServiceCompanyMember" abstract="true" name="PHIServiceCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_Illinois2022ElectricDistributionBaseRateCaseMember" abstract="true" name="Illinois2022ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_A2028Member" abstract="true" name="A2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_AtlanticCityElectricCompanyMember" abstract="true" name="AtlanticCityElectricCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_RegulatoryAssets2022Member" abstract="true" name="RegulatoryAssets2022Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ShortTermDebt03232017Member" abstract="true" name="ShortTermDebt03232017Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_LongTermMarginalStateIncomeTaxRateLineItems" abstract="true" name="LongTermMarginalStateIncomeTaxRateLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_ContractTerminationLiability" abstract="false" name="ContractTerminationLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_EquityDistributionAgreementMember" abstract="true" name="EquityDistributionAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_LoansPayableThreeMember" abstract="true" name="LoansPayableThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_UnclassifiedPreferenceStockMember" abstract="true" name="UnclassifiedPreferenceStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ExelonBusinessServicesCoAffiliateMember" abstract="true" name="ExelonBusinessServicesCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PreferenceStockSharesOutstanding" abstract="false" name="PreferenceStockSharesOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="exc_DelmarvaPowerandLightCoAffiliateMember" abstract="true" name="DelmarvaPowerandLightCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PEPCOHoldingsIncMember" abstract="true" name="PEPCOHoldingsIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossAbstract" abstract="true" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_DefinedBenefitPlanWeightedAverageAssetAllocationsAndTargetAllocationsTableTextBlock" abstract="false" name="DefinedBenefitPlanWeightedAverageAssetAllocationsAndTargetAllocationsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_OtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" abstract="false" name="OtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PublicUtilitiesDistributionRateCasesTableTextBlock" abstract="false" name="PublicUtilitiesDistributionRateCasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_FairValueInputsForwardPowerPrice" abstract="false" name="FairValueInputsForwardPowerPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="srt-types:perUnitItemType"/>
  <xs:element id="exc_InterestRateCap18monthMember" abstract="true" name="InterestRateCap18monthMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ElectricOperatingRevenuesMember" abstract="true" name="ElectricOperatingRevenuesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAmortizationOfNetGainLossInOCIAndRegulatoryAssets" abstract="false" name="DefinedBenefitPlanAmortizationOfNetGainLossInOCIAndRegulatoryAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PHIMergerCommitmentsTableTextBlock" abstract="false" name="PHIMergerCommitmentsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_RestrictedcashMember" abstract="true" name="RestrictedcashMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_A2021Member" abstract="true" name="A2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleofComponentsofLeaseCostLineItems" abstract="true" name="ScheduleofComponentsofLeaseCostLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_RegulatoryMattersPendingRateCasesLineItems" abstract="true" name="RegulatoryMattersPendingRateCasesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_EquityDistributionAgreement" abstract="false" name="EquityDistributionAgreement" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_A2022Member" abstract="true" name="A2022Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_TotalTransactionCostsTaxesRelatingToTheSeparation" abstract="false" name="TotalTransactionCostsTaxesRelatingToTheSeparation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_CENGLegacyBenefitPlansMember" abstract="true" name="CENGLegacyBenefitPlansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_JointlyOwnedElectricUtilityPlantTextBlock" abstract="false" name="JointlyOwnedElectricUtilityPlantTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_FootnotesToFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAbstract" abstract="true" name="FootnotesToFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_ShortTermDebt03242023Member" abstract="true" name="ShortTermDebt03242023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements2" abstract="false" name="DefinedBenefitPlanRecognizedNetGainLossDueToSettlements2" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DistrictOfColumbia2023ElectricDistributionBaseRateCaseMember" abstract="true" name="DistrictOfColumbia2023ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_SupplementalCashFlowInformationTable" abstract="true" name="SupplementalCashFlowInformationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_PublicUtilitiesTransmissionRateFilingsTableTextBlock" abstract="false" name="PublicUtilitiesTransmissionRateFilingsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAmountsRecognizedInRegulatoryLiabilitiesBeforeTax" abstract="false" name="DefinedBenefitPlanAmountsRecognizedInRegulatoryLiabilitiesBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PurchasesAndSalesOfAccountsReceivableTableTextBlock" abstract="false" name="PurchasesAndSalesOfAccountsReceivableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_DeferredTaxAssetsContracts" abstract="false" name="DeferredTaxAssetsContracts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ElectricDistributionFormulaRateAnnualReconciliationsMember" abstract="true" name="ElectricDistributionFormulaRateAnnualReconciliationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PotomacCapitalInvestmentAffiliateMember" abstract="true" name="PotomacCapitalInvestmentAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_Delaware2022ElectricDistributionBaseRateCaseMember" abstract="true" name="Delaware2022ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_FullyVestedStockBasedCompensationIssuedToRetirementEligibleEmployees" abstract="false" name="FullyVestedStockBasedCompensationIssuedToRetirementEligibleEmployees" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="exc_PerformanceShareAwardsObligationsSettledInCash" abstract="false" name="PerformanceShareAwardsObligationsSettledInCash" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_MembershipInterestMember" abstract="true" name="MembershipInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_OperatingLeasesOfLesseeDisclosureTableTextBlock" abstract="false" name="OperatingLeasesOfLesseeDisclosureTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_PepcoMaryland2023ElectricDistributionBaseRateCaseMember" abstract="true" name="PepcoMaryland2023ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ChangesInOptionPremiumsCollectedReceived" abstract="false" name="ChangesInOptionPremiumsCollectedReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PropertyPlantAndEquipmentAverageServiceLifePercentageByAssetCategoryTableTableTextBlock" abstract="false" name="PropertyPlantAndEquipmentAverageServiceLifePercentageByAssetCategoryTableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_IllinoisCommerceCommissionMember" abstract="true" name="IllinoisCommerceCommissionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ElectricDistributionFormulaRateOnetimeEventsMember" abstract="true" name="ElectricDistributionFormulaRateOnetimeEventsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_EnergyRelatedOptions" abstract="false" name="EnergyRelatedOptions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_Maryland2023ElectricDistributionBaseRateCaseMember" abstract="true" name="Maryland2023ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_BasispointsforComEdsRevenueRequirement" abstract="false" name="BasispointsforComEdsRevenueRequirement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="exc_LargeCommercialIndustrialMember" abstract="true" name="LargeCommercialIndustrialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ExelonINQB8RLLCMemberMember" abstract="true" name="ExelonINQB8RLLCMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_PecoEnergyCoMember" abstract="true" name="PecoEnergyCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_Maryland2023GasDistributionBaseRateCaseMember" abstract="true" name="Maryland2023GasDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ExelonEnergyDeliveryCompanyLLCMember" abstract="true" name="ExelonEnergyDeliveryCompanyLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_EnergyEfficiencyCostsMember" abstract="true" name="EnergyEfficiencyCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_SignificantAccountingPoliciesAdditionalNarrativeInformationTable" abstract="true" name="SignificantAccountingPoliciesAdditionalNarrativeInformationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_FinanceLeaseCost" abstract="false" name="FinanceLeaseCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_NonPensionPostretirementBenefitAsset" abstract="false" name="NonPensionPostretirementBenefitAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_UnderOverRecoveredTransmissionCostsMember" abstract="true" name="UnderOverRecoveredTransmissionCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ChangeinCapitalExpendituresIncurredButNotYetPaid" abstract="false" name="ChangeinCapitalExpendituresIncurredButNotYetPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostWeightedAverageInterestCreditingRateInterestCreditingRate" abstract="false" name="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostWeightedAverageInterestCreditingRateInterestCreditingRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="exc_BasisPointsForTransmissionFormulaRate" abstract="false" name="BasisPointsForTransmissionFormulaRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="exc_UnderRecoveredCreditLossExpenseMember" abstract="true" name="UnderRecoveredCreditLossExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_SupplementalBalanceSheetInformationTable" abstract="true" name="SupplementalBalanceSheetInformationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_AccountsReceivableRelatedPartiesPurchase" abstract="false" name="AccountsReceivableRelatedPartiesPurchase" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ScheduleofLessorOperatingLeasePaymentstobeReceivedMaturityLineItems" abstract="true" name="ScheduleofLessorOperatingLeasePaymentstobeReceivedMaturityLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_SupplementalFinancialInformationDisclosureTextBlock" abstract="false" name="SupplementalFinancialInformationDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationTableTextBlock" abstract="false" name="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="exc_RegulatoryLiabilities2023Member" abstract="true" name="RegulatoryLiabilities2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_InitialEquitySecuritiesOfferingMember" abstract="true" name="InitialEquitySecuritiesOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ScheduleofOperatingLeaseLeaseIncomeLineItems" abstract="true" name="ScheduleofOperatingLeaseLeaseIncomeLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_AlternativeInvestmentsMember" abstract="true" name="AlternativeInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="exc_ChangeinContractwithCustomerAssetandLiabilityTable" abstract="true" name="ChangeinContractwithCustomerAssetandLiabilityTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_OtherEquityMethodInvestmentsMember" abstract="true" name="OtherEquityMethodInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
</xs:schema>
