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  <xs:element id="exc_NuclearFuelAmortization" abstract="false" name="NuclearFuelAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PrivateCreditMember" abstract="true" name="PrivateCreditMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_DefinedBenefitPlanFairValueOfPlanAssetsTableTextBlock" abstract="false" name="DefinedBenefitPlanFairValueOfPlanAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_CommonElectricAndGasTAndDEquipmentMember" abstract="true" name="CommonElectricAndGasTAndDEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAmortizationOfNetGainsLossesInOciAndRegulatoryAssets" abstract="false" name="DefinedBenefitPlanAmortizationOfNetGainsLossesInOciAndRegulatoryAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_NetAssetsPendingTransactionsExcluded" abstract="false" name="NetAssetsPendingTransactionsExcluded" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_March312023Member" abstract="true" name="March312023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherMember" abstract="true" name="OtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_GenerationAllOtherSegmentsMember" abstract="true" name="GenerationAllOtherSegmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EnergyEfficiencyAndDemandResponseProgramsMember" abstract="true" name="EnergyEfficiencyAndDemandResponseProgramsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_BilateralOct2019aMember" abstract="true" name="BilateralOct2019aMember" 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-types: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_AmortizationOfPriorServiceCostBenefitAndActuarialLossAbstract" abstract="true" name="AmortizationOfPriorServiceCostBenefitAndActuarialLossAbstract" 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_SegmentEliminationMember" abstract="true" name="SegmentEliminationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_ImplicationsOfPotentialEarlyRetirementDisclosureTextBlock" abstract="false" name="ImplicationsOfPotentialEarlyRetirementDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostTableTextBlock" abstract="false" name="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_IntangibleAssetNineteenNinetyNineChicagoSettlementAgreementMember" abstract="true" name="IntangibleAssetNineteenNinetyNineChicagoSettlementAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_FairValueInputsForwardGasPriceAssets" abstract="false" name="FairValueInputsForwardGasPriceAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="srt-types:perUnitItemType"/>
  <xs:element id="exc_ScheduleofEnergyEfficiencyFormulaRateUpdatesTable" abstract="true" name="ScheduleofEnergyEfficiencyFormulaRateUpdatesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ReturnOnBorrowedFundsMember" abstract="true" name="ReturnOnBorrowedFundsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_UncollectibleDecommissioningShortfall" abstract="false" name="UncollectibleDecommissioningShortfall" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_GenerationNewEnglandMember" abstract="true" name="GenerationNewEnglandMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_PotomacElectricPowerCoAffiliateMember" abstract="true" name="PotomacElectricPowerCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ByronDresdenMember" abstract="true" name="ByronDresdenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_IncomeTaxesLineItems" abstract="true" name="IncomeTaxesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_ERCOTMember" abstract="true" name="ERCOTMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_LargeCommercialIndustrialMember" abstract="true" name="LargeCommercialIndustrialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_GainLossOnNuclearDecommissioningTrustFundInvestmentsAbstract" abstract="true" name="GainLossOnNuclearDecommissioningTrustFundInvestmentsAbstract" 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_OtherComprehensiveIncomeUnrealizedIncomeLossOnEquityInvestmentsArisingDuringPeriodNetOfTax" abstract="false" name="OtherComprehensiveIncomeUnrealizedIncomeLossOnEquityInvestmentsArisingDuringPeriodNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ScheduleofLessorOperatingLeasePaymentstobeReceivedMaturityTable" abstract="true" name="ScheduleofLessorOperatingLeasePaymentstobeReceivedMaturityTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_PHIServiceCoAffiliateMember" abstract="true" name="PHIServiceCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ShortTermDebt03312020Member" abstract="true" name="ShortTermDebt03312020Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_BusinessDispositionDomain" abstract="true" name="BusinessDispositionDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_LongTermMarginalStateIncomeTaxRateTableTextBlock" abstract="false" name="LongTermMarginalStateIncomeTaxRateTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_MarketPaymentShortfallInCollections" abstract="false" name="MarketPaymentShortfallInCollections" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AdvancedMeteringInfrastructureDeploymentCostsMember" abstract="true" name="AdvancedMeteringInfrastructureDeploymentCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EffectiveIncomeTaxRateReconciliationDeferredProsecutionAgreementPayments" abstract="false" name="EffectiveIncomeTaxRateReconciliationDeferredProsecutionAgreementPayments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_A2021Member" abstract="true" name="A2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherEquityMethodInvestmentsMember" abstract="true" name="OtherEquityMethodInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PHIMergerMember" abstract="true" name="PHIMergerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_March292024Member" abstract="true" name="March292024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CengMember" abstract="true" name="CengMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_AlbanyGreenEnergyBiomassFacilityMember" abstract="true" name="AlbanyGreenEnergyBiomassFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_TransferOfFinancialAssetsAccountedForAsSalesCashOutflowsReturnedForAssetsDerecognizedAmount" abstract="false" name="TransferOfFinancialAssetsAccountedForAsSalesCashOutflowsReturnedForAssetsDerecognizedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_CapitalizedInterestAndAfudcTable" abstract="true" name="CapitalizedInterestAndAfudcTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ShortTermDebt012520212Member" abstract="true" name="ShortTermDebt012520212Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_FairValueAssetsLiabilitiesMeasuredOnRecurringBasisTable" abstract="true" name="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ThreeMileIslandMember" abstract="true" name="ThreeMileIslandMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_ContractTypeDomain" abstract="true" name="ContractTypeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_BusinessAcquisitionExpectedNewGenerationMwh" abstract="false" name="BusinessAcquisitionExpectedNewGenerationMwh" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:powerItemType"/>
  <xs:element id="exc_ExelonTransmissionCompanyLlcMember" abstract="true" name="ExelonTransmissionCompanyLlcMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_IntersegmentRevenueNetOfPurchasePowerAndFuel" abstract="false" name="IntersegmentRevenueNetOfPurchasePowerAndFuel" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAssumptionsUsedInCalculationsTable" abstract="true" name="DefinedBenefitPlanAssumptionsUsedInCalculationsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ScheduleOfOtherComprehensiveIncomeLossTaxTableTextBlock" abstract="false" name="ScheduleOfOtherComprehensiveIncomeLossTaxTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_AssetRetirementObligationContractualOffset" abstract="false" name="AssetRetirementObligationContractualOffset" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_NuclearInsurancePremiumsMember" abstract="true" name="NuclearInsurancePremiumsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeCurtailmentsBeforeTax" abstract="false" name="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeCurtailmentsBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RegulatoryOffsetNuclearDecommissioningTrustFundActivity" abstract="false" name="RegulatoryOffsetNuclearDecommissioningTrustFundActivity" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DistrictofColumbia2019ElectricDistributionBaseRateCaseMember" abstract="true" name="DistrictofColumbia2019ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_FairValueReconciliationOfLevel3AssetsAndLiabilitiesMeasuredOnARecurringBasisTable" abstract="true" name="FairValueReconciliationOfLevel3AssetsAndLiabilitiesMeasuredOnARecurringBasisTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <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_GenerationTotalConsolidatedGroupMember" abstract="true" name="GenerationTotalConsolidatedGroupMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ScheduleofGovernmentSettlementAgreementsTableTextBlock" abstract="false" name="ScheduleofGovernmentSettlementAgreementsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_SupplementalFinancialInformationDisclosureTextBlock" abstract="false" name="SupplementalFinancialInformationDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_ExelonConsolidationMember" abstract="true" name="ExelonConsolidationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_March312024Member" abstract="true" name="March312024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_VariableInterestEntitiesbyInterestTypeAxis" abstract="true" name="VariableInterestEntitiesbyInterestTypeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_EffectiveIncomeTaxRateReconciliationChangeinEnactedTaxLawPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeinEnactedTaxLawPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_LongTermMarginalStateIncomeTaxRateTable" abstract="true" name="LongTermMarginalStateIncomeTaxRateTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_NonRecourseDebtInterestRateSwap" abstract="false" name="NonRecourseDebtInterestRateSwap" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PurchaseCommitment" abstract="false" name="PurchaseCommitment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:powerItemType"/>
  <xs:element id="exc_PepcoHoldingsLLCMember" abstract="true" name="PepcoHoldingsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_AccumulatedEquityInvestmentMember" abstract="true" name="AccumulatedEquityInvestmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_ScheduleofComponentsofLeaseCostLineItems" abstract="true" name="ScheduleofComponentsofLeaseCostLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" 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_OffsetsMember" abstract="true" name="OffsetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CapacityOfFacilityOfCompanyOwnedSolarDistributionGenerationFacilities" abstract="false" name="CapacityOfFacilityOfCompanyOwnedSolarDistributionGenerationFacilities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:powerItemType"/>
  <xs:element id="exc_AccountsReceivableAllowanceForCreditLossLineItems" abstract="true" name="AccountsReceivableAllowanceForCreditLossLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_SpentNuclearFuelOneTimeFee" abstract="false" name="SpentNuclearFuelOneTimeFee" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ImplicationsofPotentialEarlyPlantRetirementsAbstract" abstract="true" name="ImplicationsofPotentialEarlyPlantRetirementsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_LeaseArrangementsTypeDomain" abstract="true" name="LeaseArrangementsTypeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinStock" abstract="false" name="SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinStock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_NuclearDecommissioningMember" abstract="true" name="NuclearDecommissioningMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PEPCOHoldingsIncMember" abstract="true" name="PEPCOHoldingsIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_ExGenRenewablesMember" abstract="true" name="ExGenRenewablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_TransportationMember" abstract="true" name="TransportationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_FairValueofDerivativeswithCreditRiskRelatedContingentFeaturesTableTextBlockTableTextBlock" abstract="false" name="FairValueofDerivativeswithCreditRiskRelatedContingentFeaturesTableTextBlockTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_EquityInvestmentVIEMember" abstract="true" name="EquityInvestmentVIEMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_UncollectibleDecommissioningShortfallPercentage" abstract="false" name="UncollectibleDecommissioningShortfallPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_CommitmentsandContingenciesLineItems" abstract="true" name="CommitmentsandContingenciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_ScheduleOfTaxesExcludingIncomeAndExciseTaxesTableTextBlock" abstract="false" name="ScheduleOfTaxesExcludingIncomeAndExciseTaxesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <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_RegulatoryAssetsAndLiabilitiesByYearDomain" abstract="true" name="RegulatoryAssetsAndLiabilitiesByYearDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_BusinessDispositionAxis" abstract="true" name="BusinessDispositionAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_InvestmentsAxis" abstract="true" name="InvestmentsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_IncreaseDecreaseInARODueToChangeInDOESpentFuelAcceptanceDate" abstract="false" name="IncreaseDecreaseInARODueToChangeInDOESpentFuelAcceptanceDate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_SignificantAccountingPoliciesAdditionalNarrativeInformationLineItems" abstract="true" name="SignificantAccountingPoliciesAdditionalNarrativeInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_SolarBusinessMember" abstract="true" name="SolarBusinessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_Pennsylvania2020NaturalGasDistributionBaseRateCaseMember" abstract="true" name="Pennsylvania2020NaturalGasDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DecommissioningRelatedActivitiesNotContractuallyOffset" abstract="false" name="DecommissioningRelatedActivitiesNotContractuallyOffset" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_GenerationOtherRegionsMember" abstract="true" name="GenerationOtherRegionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherNonCashAxis" abstract="true" name="OtherNonCashAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ExGenRenewablesIVNov2024Member" abstract="true" name="ExGenRenewablesIVNov2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_TransitionBondsMember" abstract="true" name="TransitionBondsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DistributedEnergyCompanyMember" abstract="true" name="DistributedEnergyCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CaponEquityComponentofRateofReturnonCommonEquityinFederalEnergyRegulatoryCommitteeComplaint" abstract="false" name="CaponEquityComponentofRateofReturnonCommonEquityinFederalEnergyRegulatoryCommitteeComplaint" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_AuditorInformationAbstract" abstract="true" name="AuditorInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_CENGLegacyBenefitPlansMember" abstract="true" name="CENGLegacyBenefitPlansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherRegulatedRevenueMember" abstract="true" name="OtherRegulatedRevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_NoParPreferredStockMember" abstract="true" name="NoParPreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ContractswithCustomersMember" abstract="true" name="ContractswithCustomersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_UnamortizedEnergyContractsMember" abstract="true" name="UnamortizedEnergyContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ShortTermDebt08062021Member" abstract="true" name="ShortTermDebt08062021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PHIMergerCommitmentsLineItems" abstract="true" name="PHIMergerCommitmentsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_UIILLCMember" abstract="true" name="UIILLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_WestLakeMember" abstract="true" name="WestLakeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_NuclearInsuranceAnnualCoverageLimit" abstract="false" name="NuclearInsuranceAnnualCoverageLimit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PenaltyAxis" abstract="true" name="PenaltyAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <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_RegulatoryLiabilities2021Member" abstract="true" name="RegulatoryLiabilities2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_Delaware2020ElectricDistributionBaseRateCaseMember" abstract="true" name="Delaware2020ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_RemainingCommitmentMember" abstract="true" name="RemainingCommitmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PecoEnergyCoAffiliateMember" abstract="true" name="PecoEnergyCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PepcoEnergyServicesAffiliateMember" abstract="true" name="PepcoEnergyServicesAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_RegulatoryMattersCompletedRateCasesLineItems" abstract="true" name="RegulatoryMattersCompletedRateCasesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_SelectedQuarterlyFinancialInformationLineItems" abstract="true" name="SelectedQuarterlyFinancialInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_GenerationNewYorkMember" abstract="true" name="GenerationNewYorkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_EnergyCooperativesAndMunicipalitiesMember" abstract="true" name="EnergyCooperativesAndMunicipalitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherNonCashDomain" abstract="true" name="OtherNonCashDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_AntelopeValleyMember" abstract="true" name="AntelopeValleyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PreferredStockTableTextBlock" abstract="false" name="PreferredStockTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_ClaimTypesDomain" abstract="true" name="ClaimTypesDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_MergersAcquisitionsAndDispositionsLineItems" abstract="true" name="MergersAcquisitionsAndDispositionsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_MutualPropertyInsuranceDistributionToMembers" abstract="false" name="MutualPropertyInsuranceDistributionToMembers" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RepaymentOfLongTermDebtToAffiliate" abstract="false" name="RepaymentOfLongTermDebtToAffiliate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_EconomicHedgingInstrumentMember" abstract="true" name="EconomicHedgingInstrumentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_AssetRetirementObligationsLineItems" abstract="true" name="AssetRetirementObligationsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_ForwardGasBasis" abstract="false" name="ForwardGasBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_SpentNuclearFuelObligationTableTextBlock" abstract="false" name="SpentNuclearFuelObligationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_MgpSiteContingencyMonitoringCount" abstract="false" name="MgpSiteContingencyMonitoringCount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="exc_QuadCitiesMember" abstract="true" name="QuadCitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_Revenue" abstract="false" name="Revenue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_EffectsofNettingandAllocationofCollateralLiabilitesMember" abstract="true" name="EffectsofNettingandAllocationofCollateralLiabilitesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_LongtermContractforPurchaseofElectricPowerMember" abstract="true" name="LongtermContractforPurchaseofElectricPowerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CashCollateralPosted" abstract="false" name="CashCollateralPosted" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_EGRPMember" abstract="true" name="EGRPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CashPaidRefundedDuringtheYearAbstract" abstract="true" name="CashPaidRefundedDuringtheYearAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_SeparationCashPayment" abstract="false" name="SeparationCashPayment" nillable="true" xbrli:periodType="instant" 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-types:domainItemType"/>
  <xs:element id="exc_ScheduleofLessorOperatingLeasePaymentstobeReceivedMaturityLineItems" abstract="true" name="ScheduleofLessorOperatingLeasePaymentstobeReceivedMaturityLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_RelatedPartyTransactionsLongTermDebttoFinancingTrustsTableTextBlock" abstract="false" name="RelatedPartyTransactionsLongTermDebttoFinancingTrustsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_NumberOfCounterparties" abstract="false" name="NumberOfCounterparties" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="exc_COVID19RegulatoryAssetMember" abstract="true" name="COVID19RegulatoryAssetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_NewJersey2020ElectricDistributionBaseRateCaseMember" abstract="true" name="NewJersey2020ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_ScheduleOfLesseeFinanceLeaseLiabilityMaturityLineItems" abstract="true" name="ScheduleOfLesseeFinanceLeaseLiabilityMaturityLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_UnderRecoveredEnergyandNaturalGasCostsMember" abstract="true" name="UnderRecoveredEnergyandNaturalGasCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_GenerationMidAtlanticMember" abstract="true" name="GenerationMidAtlanticMember" 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_PublicUtilitiesApprovedReturnOnEquityPercentagePriorYearReconciliation" abstract="false" name="PublicUtilitiesApprovedReturnOnEquityPercentagePriorYearReconciliation" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_NuclearInsuranceFinancialProtectionPoolValue" abstract="false" name="NuclearInsuranceFinancialProtectionPoolValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" 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-types:textBlockItemType"/>
  <xs:element id="exc_PHIServiceCompanyMember" abstract="true" name="PHIServiceCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_BaltimoreGasAndElectricCompanyMember" abstract="true" name="BaltimoreGasAndElectricCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_PepcoHoldingsLLCAffiliateMember" abstract="true" name="PepcoHoldingsLLCAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_AccrualForMgpInvestigationAndRemediationMember" abstract="true" name="AccrualForMgpInvestigationAndRemediationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" abstract="false" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_AccountsReceivableRelatedPartiesSale" abstract="false" name="AccountsReceivableRelatedPartiesSale" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" 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-types:domainItemType"/>
  <xs:element id="exc_AccrualForEnvironmentalLossContingenciesMaterialComponentsDomain" abstract="true" name="AccrualForEnvironmentalLossContingenciesMaterialComponentsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_MarketWideLimitRecoveryOfDefault" abstract="false" name="MarketWideLimitRecoveryOfDefault" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AlternativeInvestmentsMember" abstract="true" name="AlternativeInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CommercialAgreementVIEMember" abstract="true" name="CommercialAgreementVIEMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_A2020Member" abstract="true" name="A2020Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CommonStockNarrativeInformationLineItems" abstract="true" name="CommonStockNarrativeInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_Scheduleofjointlyownedelectricutilityplanttextblock" abstract="false" name="Scheduleofjointlyownedelectricutilityplanttextblock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinCash" abstract="false" name="SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinCash" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedinPeriodUndistributed" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedinPeriodUndistributed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="exc_ShortTermDebt01242022Member" abstract="true" name="ShortTermDebt01242022Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ContinentalWindMember" abstract="true" name="ContinentalWindMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ProprietaryTradingLiabilitiesMember" abstract="true" name="ProprietaryTradingLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CashCollateralandLettersofCreditonDerivativeContractsTableTextBlock" abstract="false" name="CashCollateralandLettersofCreditonDerivativeContractsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_CommonwealthEdisonCompanyMember" abstract="true" name="CommonwealthEdisonCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_LesseeOperatingAndFinanceLeasesTermsOfContracts" abstract="false" name="LesseeOperatingAndFinanceLeasesTermsOfContracts" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="exc_April72021Member" abstract="true" name="April72021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ShortTermDebt033120212Member" abstract="true" name="ShortTermDebt033120212Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_MergersAcquisitionsAndDispositionsAbstract" abstract="true" name="MergersAcquisitionsAndDispositionsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_AccumulatedBenefitObligationInExcessOfPlanAssetsMember" abstract="true" name="AccumulatedBenefitObligationInExcessOfPlanAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_AssetRetirementObligationAccretionRate" abstract="false" name="AssetRetirementObligationAccretionRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_SignificantAccountingPoliciesAdditionalNarrativeInformationTable" abstract="true" name="SignificantAccountingPoliciesAdditionalNarrativeInformationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ProprietaryTradingMember" abstract="true" name="ProprietaryTradingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ExpirationDateOfFacilityDomain" abstract="true" name="ExpirationDateOfFacilityDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DOEProjectFinancing2.82January52037Member" abstract="true" name="DOEProjectFinancing2.82January52037Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_SpentNuclearFuelTreasuryInterestRateFitzPatrick" abstract="false" name="SpentNuclearFuelTreasuryInterestRateFitzPatrick" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_PreferenceSecuritiesTableTextBlock" abstract="false" name="PreferenceSecuritiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_ContractWithCustomerPriorYearContractRevenuesRecognizedInCurrentYearTableTextBlock" abstract="false" name="ContractWithCustomerPriorYearContractRevenuesRecognizedInCurrentYearTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_PublicUtilitiesDistributionRateCasesTableTextBlock" abstract="false" name="PublicUtilitiesDistributionRateCasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <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_MarylandReliefActFunds" abstract="false" name="MarylandReliefActFunds" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DeferredProsecutionAgreementPaymentsMember" abstract="true" name="DeferredProsecutionAgreementPaymentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_BilateralJan2013Member" abstract="true" name="BilateralJan2013Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ContractAssetLiabilitiesLineItems" abstract="true" name="ContractAssetLiabilitiesLineItems" 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-types:textBlockItemType"/>
  <xs:element id="exc_SalemMember" abstract="true" name="SalemMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EarningsReclassification" abstract="false" name="EarningsReclassification" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PublicUtilitiesTransmissionRateFilingsTableTextBlock" abstract="false" name="PublicUtilitiesTransmissionRateFilingsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_NonnuclearDecommissioningAssetRetirementObligationMember" abstract="true" name="NonnuclearDecommissioningAssetRetirementObligationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PensionandPostRetirementPlanMergerCostsMember" abstract="true" name="PensionandPostRetirementPlanMergerCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_PropertyPlantAndEquipmentAverageServiceLifePercentageByAssetCategoryTableTableTextBlock" abstract="false" name="PropertyPlantAndEquipmentAverageServiceLifePercentageByAssetCategoryTableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_OtherLegalEntitiesMember" abstract="true" name="OtherLegalEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CENGPreferredDistributionReturn" abstract="false" name="CENGPreferredDistributionReturn" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_ChangeFromNetIncomeLossAttributableToOwnershipInterestAndTransfersFromNoncontrollingInterest" abstract="false" name="ChangeFromNetIncomeLossAttributableToOwnershipInterestAndTransfersFromNoncontrollingInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossAbstract" abstract="true" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_CreditCollateralMember" abstract="true" name="CreditCollateralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_VariableInterestEntityAbstract" abstract="true" name="VariableInterestEntityAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_UnderRecoveredDecouplingRevenueMember" abstract="true" name="UnderRecoveredDecouplingRevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EconomicHedgingInstrumentLiabilitesMember" abstract="true" name="EconomicHedgingInstrumentLiabilitesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_LongTermMarginalStateIncomeTaxRateAbstract" abstract="true" name="LongTermMarginalStateIncomeTaxRateAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_PurchasedPowerAndFuelMember" abstract="true" name="PurchasedPowerAndFuelMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_IllinoisPowerAgencyMember" abstract="true" name="IllinoisPowerAgencyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CommodityDerivativeAssetsMember" abstract="true" name="CommodityDerivativeAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ExelonVTILLCMember" abstract="true" name="ExelonVTILLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_PeriodDomain" abstract="true" name="PeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OpenClaimsMember" abstract="true" name="OpenClaimsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_MembersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" abstract="true" name="MembersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_MarketParticipantDomain" abstract="true" name="MarketParticipantDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_SpentNuclearFuelStorageReimbursementNetCoOwners" abstract="false" name="SpentNuclearFuelStorageReimbursementNetCoOwners" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AHFSUnrestrictedAsset" abstract="false" name="AHFSUnrestrictedAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_BilateralNov2019aMember" abstract="true" name="BilateralNov2019aMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_BaltimoreGasAndElectricCompanyAffiliateMember" abstract="true" name="BaltimoreGasAndElectricCompanyAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_FairValueInputsRenewableFactor" abstract="false" name="FairValueInputsRenewableFactor" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_SecuritizedFundsAllocation" abstract="false" name="SecuritizedFundsAllocation" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_CommonwealthEdisonCoMember" abstract="true" name="CommonwealthEdisonCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DefinedBenefitPlanWeightedAverageAssetAllocationsAndTargetAllocationsTableTextBlock" abstract="false" name="DefinedBenefitPlanWeightedAverageAssetAllocationsAndTargetAllocationsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_NettingMember" abstract="true" name="NettingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_SolGenMember" abstract="true" name="SolGenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EmployeeBenefitTrustsandInvestmentsMember" abstract="true" name="EmployeeBenefitTrustsandInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_Illinois2021ElectricDistributionBaseRateCaseMember" abstract="true" name="Illinois2021ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_RevenueNetofPurchasePowerAndFuel" abstract="false" name="RevenueNetofPurchasePowerAndFuel" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_SelectedQuarterlyFinancialInformationTable" abstract="true" name="SelectedQuarterlyFinancialInformationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ScheduleOfCapitalizedInterestAndAFUDCTableTextBlock" abstract="false" name="ScheduleOfCapitalizedInterestAndAFUDCTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_InvestmentsInNonconsolidatedVariableInterestEntities" abstract="false" name="InvestmentsInNonconsolidatedVariableInterestEntities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AllocationofFederalTaxBenefitUnderTaxSharingAgreementTableTextBlockTableTextBlock" abstract="false" name="AllocationofFederalTaxBenefitUnderTaxSharingAgreementTableTextBlockTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_VEBAMember" abstract="true" name="VEBAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherNetMember" abstract="true" name="OtherNetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_RenewablePowerGenerationMember" abstract="true" name="RenewablePowerGenerationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_BasisPointsForComEdsElectricDistributionRates" abstract="false" name="BasisPointsForComEdsElectricDistributionRates" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="exc_ExpectedGenerationHedgedInYearTwo" abstract="false" name="ExpectedGenerationHedgedInYearTwo" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_PensionAndOtherPostRetirementBenefitMember" abstract="true" name="PensionAndOtherPostRetirementBenefitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PurchasesAndSalesOfAccountsReceivableTableTextBlock" abstract="false" name="PurchasesAndSalesOfAccountsReceivableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <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_IncreaseDecreaseinARODuetoChangeinRetirementTimingProbabilities" abstract="false" name="IncreaseDecreaseinARODuetoChangeinRetirementTimingProbabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" 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-types:percentItemType"/>
  <xs:element id="exc_FairValueOfSupplyContractMember" abstract="true" name="FairValueOfSupplyContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CollateralMember" abstract="true" name="CollateralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_A2025Member" abstract="true" name="A2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_AtlanticCityElectricCoAffiliateMember" abstract="true" name="AtlanticCityElectricCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRateLineItems" abstract="true" name="EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRateLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_UnderOverRecoveredTransmissionCostsMember" abstract="true" name="UnderOverRecoveredTransmissionCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_RelatedPartyTransactionsBSCandPHISCOServiceCompaniesTableTextBlock" abstract="false" name="RelatedPartyTransactionsBSCandPHISCOServiceCompaniesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_NetExposureOfCounterpartiesGreaterThanTenPercentOfNetExposureMember" abstract="true" name="NetExposureOfCounterpartiesGreaterThanTenPercentOfNetExposureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_CommonStockWarrantsAbstract" abstract="true" name="CommonStockWarrantsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_FinancialInstitutionsMember" abstract="true" name="FinancialInstitutionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EffectsofNettingandAllocationofCollateralMember" abstract="true" name="EffectsofNettingandAllocationofCollateralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_Delaware2022NaturalGasDistributionBaseRateCaseMember" abstract="true" name="Delaware2022NaturalGasDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_GenerationErcotMember" abstract="true" name="GenerationErcotMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_AssetRemovalCostsMember" abstract="true" name="AssetRemovalCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_FairValueInputsForwardPowerPriceAssets" abstract="false" name="FairValueInputsForwardPowerPriceAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="srt-types:perUnitItemType"/>
  <xs:element id="exc_GenerationMidwestMember" abstract="true" name="GenerationMidwestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_March312022Member" abstract="true" name="March312022Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_NuclearDecommissioningByronMember" abstract="true" name="NuclearDecommissioningByronMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ShortTermDebt03242021Member" abstract="true" name="ShortTermDebt03242021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_ExGenRenewablesIVDec2020Member" abstract="true" name="ExGenRenewablesIVDec2020Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ForwardPowerBasis" abstract="false" name="ForwardPowerBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_TexasBasedGeneratingAssetsMember" abstract="true" name="TexasBasedGeneratingAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_LoansPayableTwoMember" abstract="true" name="LoansPayableTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_BusinessServicesCompanyMember" abstract="true" name="BusinessServicesCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ScheduleofEnergyEfficiencyFormulaRateUpdatesLineItems" abstract="true" name="ScheduleofEnergyEfficiencyFormulaRateUpdatesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_DCPLUGChargeMember" abstract="true" name="DCPLUGChargeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_RabbiTrustInvestmentsMember" abstract="true" name="RabbiTrustInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_NineMilePointMember" abstract="true" name="NineMilePointMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherNonconsolidatedVariableInterestEntityOwnershipInterests" abstract="false" name="OtherNonconsolidatedVariableInterestEntityOwnershipInterests" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_UndistributedEarningsMember" abstract="true" name="UndistributedEarningsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_AccountsReceivableRelatedPartiesPurchase" abstract="false" name="AccountsReceivableRelatedPartiesPurchase" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_OtherAvailableForSaleInvestmentsMember" abstract="true" name="OtherAvailableForSaleInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EffectiveIncomeTaxRateReconciliationQualifiedDecommissioningInvestmentIncomePercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationQualifiedDecommissioningInvestmentIncomePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_RevenueNetOfPurchasePowerAndFuelFromExternalCustomers" abstract="false" name="RevenueNetOfPurchasePowerAndFuelFromExternalCustomers" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DelmarvaPowerandLightCoAffiliateMember" abstract="true" name="DelmarvaPowerandLightCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_GainLossInvestmentIncomeNuclearDecommissioningTrustFunds" abstract="false" name="GainLossInvestmentIncomeNuclearDecommissioningTrustFunds" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PublicUtilitiesApprovedRateIncreaseDecreaseOffsetsAxis" abstract="true" name="PublicUtilitiesApprovedRateIncreaseDecreaseOffsetsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_PecoEnergyCoMember" abstract="true" name="PecoEnergyCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DistributionToMemberOfDeferredTaxesAssociatedWithNetRetirementBenefitObligation" abstract="false" name="DistributionToMemberOfDeferredTaxesAssociatedWithNetRetirementBenefitObligation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_WindProjectEntitiesMember" abstract="true" name="WindProjectEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PropertyPlantAndEquipmentDepreciationAsPercentOfAverageServiceLifeRate" abstract="false" name="PropertyPlantAndEquipmentDepreciationAsPercentOfAverageServiceLifeRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_FairValueInputsForwardHeatRate" abstract="false" name="FairValueInputsForwardHeatRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_RestrictedcashMember" abstract="true" name="RestrictedcashMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EstimatedFutureClaimsMember" abstract="true" name="EstimatedFutureClaimsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ScheduleOfBusinessAcquisitionsAndDispositionsTable" abstract="true" name="ScheduleOfBusinessAcquisitionsAndDispositionsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_PecoTrustFourAffiliateMember" abstract="true" name="PecoTrustFourAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_MembershipInterestMember" abstract="true" name="MembershipInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ShortTermDebt03192020Member" abstract="true" name="ShortTermDebt03192020Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ScheduleofPreferredSecuritiesAuthorizedAbstract" abstract="true" name="ScheduleofPreferredSecuritiesAuthorizedAbstract" 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-types:domainItemType"/>
  <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_LongTermMarginalStateIncomeTaxRateLineItems" abstract="true" name="LongTermMarginalStateIncomeTaxRateLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_NERMember" abstract="true" name="NERMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_A2026Member" abstract="true" name="A2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ClaimTypeAxis" abstract="true" name="ClaimTypeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_TaxAdjustmentDomain" abstract="true" name="TaxAdjustmentDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_GenerationSolarBusinessMember" abstract="true" name="GenerationSolarBusinessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_RegulatedOperationsCapitalizedRatemakingAmountsNotRecognizedAbstract" abstract="true" name="RegulatedOperationsCapitalizedRatemakingAmountsNotRecognizedAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_PECOFinancingTrustsMember" abstract="true" name="PECOFinancingTrustsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_RenewablePortfolioStandardsCostsMember" abstract="true" name="RenewablePortfolioStandardsCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_NumberOfCounterpartiesGreaterThanTenPercentOfNetExposureMember" abstract="true" name="NumberOfCounterpartiesGreaterThanTenPercentOfNetExposureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DifferencebetweenCarryingValueandFairValueMember" abstract="true" name="DifferencebetweenCarryingValueandFairValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PublicUtilitiesApprovedRateIncreaseDecreaseTaxBenefitsDomain" abstract="true" name="PublicUtilitiesApprovedRateIncreaseDecreaseTaxBenefitsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_VariableInterestEntityDisclosureSummaryofUnconsolidatedVariableInterestEntityTableTextBlock" abstract="false" name="VariableInterestEntityDisclosureSummaryofUnconsolidatedVariableInterestEntityTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_RegulatoryAssetsAndLiabilitiesByYearAxis" abstract="true" name="RegulatoryAssetsAndLiabilitiesByYearAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ShortTermDebt012520211Member" abstract="true" name="ShortTermDebt012520211Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_EffectiveIncomeTaxRateReconciliationAcquisitionofAssetPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationAcquisitionofAssetPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_SupplementalFinancialInformationAbstract" abstract="true" name="SupplementalFinancialInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIncludedInNoncurrentPayablesToAffiliates" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIncludedInNoncurrentPayablesToAffiliates" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_PeachBottomMember" abstract="true" name="PeachBottomMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_NuclearPlantDomain" abstract="true" name="NuclearPlantDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ScheduleOfPensionAndOtherPostretirementBenefitCostsTableTextBlock" abstract="false" name="ScheduleOfPensionAndOtherPostretirementBenefitCostsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_CommodityDerivativeLiabilitesMember" abstract="true" name="CommodityDerivativeLiabilitesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherSolarProjectsMember" abstract="true" name="OtherSolarProjectsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ExelonINQB8RLLCMemberMember" abstract="true" name="ExelonINQB8RLLCMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_SaleOfAccountsReceivableMember" abstract="true" name="SaleOfAccountsReceivableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_ExelonSignificantSubsidiariesMember" abstract="true" name="ExelonSignificantSubsidiariesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ExpirationDateOfFacilityAxis" abstract="true" name="ExpirationDateOfFacilityAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_FootnotesToFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAbstract" abstract="true" name="FootnotesToFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_PeriodAxis" abstract="true" name="PeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ScheduleofLesseeOperatingLeaseLiabilityMaturityLineItems" abstract="true" name="ScheduleofLesseeOperatingLeaseLiabilityMaturityLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_RenewableEnergyCreditsCurrent" abstract="false" name="RenewableEnergyCreditsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_ScheduleofAlternativeorRenewableEnergyCreditsTableTextBlock" abstract="false" name="ScheduleofAlternativeorRenewableEnergyCreditsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_PreferenceStockSharesOutstanding" abstract="false" name="PreferenceStockSharesOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="exc_AccumulatedOtherComprehensiveIncomeLossTextBlock" abstract="false" name="AccumulatedOtherComprehensiveIncomeLossTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_ExelonGenerationCoLlcAffiliateMember" abstract="true" name="ExelonGenerationCoLlcAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherNonFinancialCommitment1" abstract="false" name="OtherNonFinancialCommitment1" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:powerItemType"/>
  <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_PotomacElectricPowerCompanyMember" abstract="true" name="PotomacElectricPowerCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PHIMergerCommitmentsTableTextBlock" abstract="false" name="PHIMergerCommitmentsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <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_SaleOfAccountsReceivable_ThreeMonthsEndedQ12021Member" abstract="true" name="SaleOfAccountsReceivable_ThreeMonthsEndedQ12021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherAffiliateMember" abstract="true" name="OtherAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PublicUtilityCommissionOfTexasMember" abstract="true" name="PublicUtilityCommissionOfTexasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DelmarvaPowerandLightCompanyMember" abstract="true" name="DelmarvaPowerandLightCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PensionAndOtherPostretirementBenefitContributionsTableTextBlock" abstract="false" name="PensionAndOtherPostretirementBenefitContributionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_DelmarvaPowerLightCoMember" abstract="true" name="DelmarvaPowerLightCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_MilesOfTransmissionVoltageLines" abstract="false" name="MilesOfTransmissionVoltageLines" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:lengthItemType"/>
  <xs:element id="exc_DefinedBenefitPlanPensionPlansWithBenefitObligationsInExcessOfPlanAssetsAxis" abstract="true" name="DefinedBenefitPlanPensionPlansWithBenefitObligationsInExcessOfPlanAssetsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_A2028Member" abstract="true" name="A2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_DelawareAndNewJerseyMember" abstract="true" name="DelawareAndNewJerseyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_MinimumExpectationOfTaxPositionToBeRealized" abstract="false" name="MinimumExpectationOfTaxPositionToBeRealized" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_NonRecourseDebtMinimumRate" abstract="false" name="NonRecourseDebtMinimumRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_LoansPayableThreeMember" abstract="true" name="LoansPayableThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_SpentNuclearFuelObligationLineItems" abstract="true" name="SpentNuclearFuelObligationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_ScheduleOfChangesInOwnershipInterestLineItems" abstract="true" name="ScheduleOfChangesInOwnershipInterestLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_AtlanticCityElectricCompanyMember" abstract="true" name="AtlanticCityElectricCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_UsGaap_DefinedBenefitPlanActualAssetReturns" abstract="false" name="UsGaap_DefinedBenefitPlanActualAssetReturns" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_ElectricDistributionFormulaRateOnetimeEventsMember" abstract="true" name="ElectricDistributionFormulaRateOnetimeEventsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_FitzpatrickMember" abstract="true" name="FitzpatrickMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_LeaseArrangementsTypeAxis" abstract="true" name="LeaseArrangementsTypeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_CommonStockSharesReservedForWarrantConversion" abstract="false" name="CommonStockSharesReservedForWarrantConversion" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="exc_PPEunrestrictedasset" abstract="false" name="PPEunrestrictedasset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" 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-types:percentItemType"/>
  <xs:element id="exc_FairValueNetAssetsLiabilitiesExcludedFromNuclearDecommissioningTrustFundInvestments" abstract="false" name="FairValueNetAssetsLiabilitiesExcludedFromNuclearDecommissioningTrustFundInvestments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_VoltageOfTransmissionLines" abstract="false" name="VoltageOfTransmissionLines" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="exc_CommonwealthEdisonCoAffiliateMember" abstract="true" name="CommonwealthEdisonCoAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_RelatedPartyTransactionsCurrentReceivablesFromPayablesToAffiliatesTableTextBlock" abstract="false" name="RelatedPartyTransactionsCurrentReceivablesFromPayablesToAffiliatesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_GenerationReportableSegmentsTotalMember" abstract="true" name="GenerationReportableSegmentsTotalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_NuclearPlantAxis" abstract="true" name="NuclearPlantAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_SpentNuclearFuelStorageReimbursement" abstract="false" name="SpentNuclearFuelStorageReimbursement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AssetRetirementObligationsTable" abstract="true" name="AssetRetirementObligationsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_AmortizationOfIntangibleAssetsRelatedToCommodityContracts" abstract="false" name="AmortizationOfIntangibleAssetsRelatedToCommodityContracts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinCashifAgreementConditionsareMet" abstract="false" name="SharebasedCompensationbySharebasedPaymentAwardPercentageofAwardstobeSettledinCashifAgreementConditionsareMet" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_ReturnonNuclearDecommissioningFundsHistorical" abstract="false" name="ReturnonNuclearDecommissioningFundsHistorical" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_MovementinAccumulatedOtherComprehensiveIncomeRollForward" abstract="true" name="MovementinAccumulatedOtherComprehensiveIncomeRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_NuclearFuelFabricationAndInstallationStage" abstract="false" name="NuclearFuelFabricationAndInstallationStage" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_NumberOfYearsUsedInPresentValueMeasurement" abstract="false" name="NumberOfYearsUsedInPresentValueMeasurement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <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_LDCDamagesAccruedLiabilityMember" abstract="true" name="LDCDamagesAccruedLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_RegulatoryMattersCompletedRateCasesTable" abstract="true" name="RegulatoryMattersCompletedRateCasesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_NewFreedomSwitchingMember" abstract="true" name="NewFreedomSwitchingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_BenefitObligationInExcessOfPlanAssetsDomain" abstract="true" name="BenefitObligationInExcessOfPlanAssetsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_StockBasedCompensationTaxBenefitTableTextBlock" abstract="false" name="StockBasedCompensationTaxBenefitTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
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  <xs:element id="exc_RenewableenergycreditcurrentMember" abstract="true" name="RenewableenergycreditcurrentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_A2019Member" abstract="true" name="A2019Member" 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_ExelonGenerationCoLLCMember" abstract="true" name="ExelonGenerationCoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_TaxAdjustmentAxis" abstract="true" name="TaxAdjustmentAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_RevenuefromContractwithCustomerAllRegistrantsAbstract" abstract="true" name="RevenuefromContractwithCustomerAllRegistrantsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_ContractedWindProjectMember" abstract="true" name="ContractedWindProjectMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ScheduleofSupplementalCashFlowInformationRelatedtoLeasesTableTextBlock" abstract="false" name="ScheduleofSupplementalCashFlowInformationRelatedtoLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_EnergyEfficiencyCostsMember" abstract="true" name="EnergyEfficiencyCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ExpectedGenerationHedgedInNextTwelveMonths" abstract="false" name="ExpectedGenerationHedgedInNextTwelveMonths" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_VariableInterestEntitiesbyInterestTypeDomain" abstract="true" name="VariableInterestEntitiesbyInterestTypeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ScheduleOfChangesInOwnershipInterestTableTextBlock" abstract="false" name="ScheduleOfChangesInOwnershipInterestTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <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_SystemWideOfferCap" abstract="false" name="SystemWideOfferCap" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_AssetsandLiabilitiesofVariableInterestEntityTableTextBlock" abstract="false" name="AssetsandLiabilitiesofVariableInterestEntityTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_Maryland2020ElectricDistributionBaseRateCaseMember" abstract="true" name="Maryland2020ElectricDistributionBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_UnderRecoveredCreditLossExpenseMember" abstract="true" name="UnderRecoveredCreditLossExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_GenerationConsolidatedEntitiesMember" abstract="true" name="GenerationConsolidatedEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_A2022Member" abstract="true" name="A2022Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_PublicUtilitiesApprovedRateIncreaseDecreaseOffsetsDomain" abstract="true" name="PublicUtilitiesApprovedRateIncreaseDecreaseOffsetsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_RegulatoryLiabilities2020Member" abstract="true" name="RegulatoryLiabilities2020Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_IllinoisCommerceCommissionMember" abstract="true" name="IllinoisCommerceCommissionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_CostOfSpentNuclearFuelDisposal" abstract="false" name="CostOfSpentNuclearFuelDisposal" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_RegulatoryAssets2021Member" abstract="true" name="RegulatoryAssets2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_NetExposureMember" abstract="true" name="NetExposureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ResidentialMember" abstract="true" name="ResidentialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_TaxBenefitsMember" abstract="true" name="TaxBenefitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_NonRecourseVariableRateMember" abstract="true" name="NonRecourseVariableRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OptionModelValuationTechniqueMember" abstract="true" name="OptionModelValuationTechniqueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_IncreaseDecreaseinAROforImpactsofRevisedDecommissioningCostEstimates" abstract="false" name="IncreaseDecreaseinAROforImpactsofRevisedDecommissioningCostEstimates" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_VIEDistributedEnergyCompanyMember" abstract="true" name="VIEDistributedEnergyCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ExelonUtilityRegistrantsAffiliatesMember" abstract="true" name="ExelonUtilityRegistrantsAffiliatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OperatingRevenueMember" abstract="true" name="OperatingRevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_ExelonBusinessServicesCoAffiliateMember" abstract="true" name="ExelonBusinessServicesCoAffiliateMember" 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-types:domainItemType"/>
  <xs:element id="exc_BilateralNov2019bMember" abstract="true" name="BilateralNov2019bMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_LDCDamagesMember" abstract="true" name="LDCDamagesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_SpentNuclearFuelObligationTable" abstract="true" name="SpentNuclearFuelObligationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_ContractTypeAxis" abstract="true" name="ContractTypeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_RecognitionofUnrecognizedTaxBenefitsLineItems" abstract="true" name="RecognitionofUnrecognizedTaxBenefitsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_TransferOfFinancialAssetsAccountedForAsSaleAdditionalTransfers" abstract="false" name="TransferOfFinancialAssetsAccountedForAsSaleAdditionalTransfers" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="exc_SupplementalBalanceSheetInformationRelatedtoLesseeRightofUseAssetsandLeaseLiabilitiesTableTextBlock" abstract="false" name="SupplementalBalanceSheetInformationRelatedtoLesseeRightofUseAssetsandLeaseLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="exc_ScheduleofOperatingLeaseLeaseIncomeTable" abstract="true" name="ScheduleofOperatingLeaseLeaseIncomeTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsNetGainsLossesBeforeTax" abstract="false" name="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsNetGainsLossesBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateDesignChanges" abstract="false" name="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateDesignChanges" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_PotomacCapitalInvestmentAffiliateMember" abstract="true" name="PotomacCapitalInvestmentAffiliateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_SupplementalBalanceSheetInformationLineItems" abstract="true" name="SupplementalBalanceSheetInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="exc_UnclassifiedPreferenceStockMember" abstract="true" name="UnclassifiedPreferenceStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_ShortTermDebt03232017Member" abstract="true" name="ShortTermDebt03232017Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherReceivablesMember" abstract="true" name="OtherReceivablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_OtherFixedIncomeMember" abstract="true" name="OtherFixedIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="exc_AssumedReturnsonNDTFunds" abstract="false" name="AssumedReturnsonNDTFunds" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="exc_DefinedBenefitPlanSales" abstract="false" name="DefinedBenefitPlanSales" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="exc_A2021TransmissionFormulaRateAnnualUpdateDomain" abstract="true" name="A2021TransmissionFormulaRateAnnualUpdateDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
