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  <xs:element id="wps_IncomeTaxReconciliationFederalExcessAmortization" abstract="false" name="IncomeTaxReconciliationFederalExcessAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wps_EffectiveIncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity" abstract="false" name="EffectiveIncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wps_EffectiveIncomeTaxReconciliationFederalExcessAmortization" abstract="false" name="EffectiveIncomeTaxReconciliationFederalExcessAmortization" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="wps_WisconsinTaxingJurisdicationMember" abstract="true" name="WisconsinTaxingJurisdicationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_IncomeTaxesLineItems" abstract="true" name="IncomeTaxesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wps_SaleOfProductionTaxCreditCashReceived" abstract="false" name="SaleOfProductionTaxCreditCashReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wps_CommodityContractNaturalGasMember" abstract="true" name="CommodityContractNaturalGasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_CommodityContractTransmissionCongestionRightsMember" abstract="true" name="CommodityContractTransmissionCongestionRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_GuaranteeObligationsMaximumExposureExpireOverThreeYears" abstract="false" name="GuaranteeObligationsMaximumExposureExpireOverThreeYears" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wps_PensionAndOtherPostretirementPlansCostMember" abstract="true" name="PensionAndOtherPostretirementPlansCostMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_UtilityMember" abstract="true" name="UtilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_FuelAndPurchasedPowerCosts" abstract="false" name="FuelAndPurchasedPowerCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wps_MercuryAndAirToxicsStandardsMember" abstract="true" name="MercuryAndAirToxicsStandardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_NationalAmbientAirQualityStandardsMember" abstract="true" name="NationalAmbientAirQualityStandardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_ClimateChangeMember" abstract="true" name="ClimateChangeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_ManufacturedGasPlantRemediationMember" abstract="true" name="ManufacturedGasPlantRemediationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_EnvironmentalComplianceObligationsAirQualityAbstract" abstract="true" name="EnvironmentalComplianceObligationsAirQualityAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wps_PreviousLevelOfParticulateMatterInPoundsPerMillionBritishThermalUnit" abstract="false" name="PreviousLevelOfParticulateMatterInPoundsPerMillionBritishThermalUnit" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:energyItemType"/>
  <xs:element id="wps_NewLimitForParticulateMatterPublishedInTheEPAsFinalRule" abstract="false" name="NewLimitForParticulateMatterPublishedInTheEPAsFinalRule" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:energyItemType"/>
  <xs:element id="wps_NewLevelOfParticulateMatterInPoundsPerMillionBritishThermalUnitsThatTheEPARevertedBackToWithTheRepealOfThe2024AmendmentsEffectiveApril272026" abstract="false" name="NewLevelOfParticulateMatterInPoundsPerMillionBritishThermalUnitsThatTheEPARevertedBackToWithTheRepealOfThe2024AmendmentsEffectiveApril272026" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:energyItemType"/>
  <xs:element id="wps_AnnualStandardForTheParticulateMatterNAAQS" abstract="false" name="AnnualStandardForTheParticulateMatterNAAQS" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
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  <xs:element id="wps_PeriodOfTimeThatTheEPAMayTakeToIssueAttainmentDesignations" abstract="false" name="PeriodOfTimeThatTheEPAMayTakeToIssueAttainmentDesignations" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wps_NumberOfApplicableGHGPerformanceStandardsForCoalPlants" abstract="false" name="NumberOfApplicableGHGPerformanceStandardsForCoalPlants" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wps_CoalGenerationCapacityRetired" abstract="false" name="CoalGenerationCapacityRetired" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:powerItemType"/>
  <xs:element id="wps_FossilFueledGenerationCapacityToBeRetiredBy2031" abstract="false" name="FossilFueledGenerationCapacityToBeRetiredBy2031" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:powerItemType"/>
  <xs:element id="wps_EnvironmentalComplianceObligationsLandQualityAbstract" abstract="true" name="EnvironmentalComplianceObligationsLandQualityAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wps_LiabilitiesAccruedForSoftwareLicensingAgreements" abstract="false" name="LiabilitiesAccruedForSoftwareLicensingAgreements" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wps_A2027RatesMember" abstract="true" name="A2027RatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_A2028RatesMember" abstract="true" name="A2028RatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wps_PercentageOfFirst15BasisPointsOfAdditionalEarningsRetainedByTheUtility" abstract="false" name="PercentageOfFirst15BasisPointsOfAdditionalEarningsRetainedByTheUtility" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wps_Returnonequityinexcessofauthorizedamountasapercent" abstract="false" name="Returnonequityinexcessofauthorizedamountasapercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wps_PercentageOfAdditionalEarningsBetween15And75BasisPointsRefundedToCustomers" abstract="false" name="PercentageOfAdditionalEarningsBetween15And75BasisPointsRefundedToCustomers" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wps_ReturnOnEquityInExcessOfFirst15BasisPointsAboveAuthorizedAmountAsAPercent" abstract="false" name="ReturnOnEquityInExcessOfFirst15BasisPointsAboveAuthorizedAmountAsAPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wps_Percentageofearningsinexcessof75basispointsrefundedtocustomers" abstract="false" name="Percentageofearningsinexcessof75basispointsrefundedtocustomers" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
</xs:schema>
