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  <xsd:element abstract="true" id="ale_EnvironmentalMattersTable" name="EnvironmentalMattersTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_EquityMethodInvestmentApprovedReturnOnCommonEquity" name="EquityMethodInvestmentApprovedReturnOnCommonEquity" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_EquityMethodInvestmentApprovedReturnonCommonEquityIncludingIncentiveAdder" name="EquityMethodInvestmentApprovedReturnonCommonEquityIncludingIncentiveAdder" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_EquityMethodInvestmentExpectedAdditionalInvestment" name="EquityMethodInvestmentExpectedAdditionalInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ale_EquityMethodInvestmentProposedReturnonCommonEquity" name="EquityMethodInvestmentProposedReturnonCommonEquity" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_EquityMethodInvestmentProposedReturnonCommonEquityIncludingIncentiveAdder" name="EquityMethodInvestmentProposedReturnonCommonEquityIncludingIncentiveAdder" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_EstimatedCapitalExpendituresIncludingPastExpenditures" name="EstimatedCapitalExpendituresIncludingPastExpenditures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ale_EstimatedDiscounttobeProvidedDuringtheNextTwelveMonths" name="EstimatedDiscounttobeProvidedDuringtheNextTwelveMonths" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ale_FERCAuthorizedReturnonCommonEquity" name="FERCAuthorizedReturnonCommonEquity" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_FERCAuthorizedReturnonEquityIncludingIncentiveAdder" name="FERCAuthorizedReturnonEquityIncludingIncentiveAdder" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_FERCComplaint2Member" name="FERCComplaint2Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_FERCMember" name="FERCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_FairValueTransfersBetweenLevelsAllLevels" name="FairValueTransfersBetweenLevelsAllLevels" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_FercApprovedWholesaleRatesMember" name="FercApprovedWholesaleRatesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_FiniteLivedIntangibleAssetsAdditionforPatentDefenseCosts" name="FiniteLivedIntangibleAssetsAdditionforPatentDefenseCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ale_FuelPurchasedPowerandGasUtility" name="FuelPurchasedPowerandGasUtility" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ale_GeneratingCapacityCounterpartyOwnedMW" name="GeneratingCapacityCounterpartyOwnedMW" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_GeneratingCapacityJointlyOwnedMW" name="GeneratingCapacityJointlyOwnedMW" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_GeneratingCapacityOwnedMW" name="GeneratingCapacityOwnedMW" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_GeneratingFacilityAxisAxis" name="GeneratingFacilityAxisAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_GeneratingFacilityUnitNameDomain" name="GeneratingFacilityUnitNameDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_GenerationTypeAxis" name="GenerationTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_GenerationTypeDomain" name="GenerationTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_GreatNorthernTransmissionLineMember" name="GreatNorthernTransmissionLineMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_GuaranteeEntityandTypeAxis" name="GuaranteeEntityandTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_GuaranteeEntityandTypeDomain" name="GuaranteeEntityandTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_GuarantorObligationsCollateralHeldDirectlyorbyThirdPartiesAmount" name="GuarantorObligationsCollateralHeldDirectlyorbyThirdPartiesAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_IncreaseDecreaseInTaxAbstract" name="IncreaseDecreaseInTaxAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_IncreaseDecreaseinAccountsPayableforCapitalAdditionstoPropertyPlantandEquipment" name="IncreaseDecreaseinAccountsPayableforCapitalAdditionstoPropertyPlantandEquipment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ale_IncreaseDecreaseinAnnualDepreciationExpenseBasedonRegulatoryOrder" name="IncreaseDecreaseinAnnualDepreciationExpenseBasedonRegulatoryOrder" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_IndustrialCustomersMember" name="IndustrialCustomersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_IndustrialMember" name="IndustrialMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_IntangibleAssetsIncreaseDecrease" name="IntangibleAssetsIncreaseDecrease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_IntegratedResourcePlanMember" name="IntegratedResourcePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_JointlyOwnedbyALLETEandDairylandPowerCooperativeMember" name="JointlyOwnedbyALLETEandDairylandPowerCooperativeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_LargePowerCustomerContracts" name="LargePowerCustomerContracts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_LengthOfNoticeRequiredToTerminateYears" name="LengthOfNoticeRequiredToTerminateYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_LengthofNoticeRequiredtoTerminateContract" name="LengthofNoticeRequiredtoTerminateContract" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchasedMw" name="LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchasedMw" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputPurchasedMw" name="LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputPurchasedMw" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LongtermContractMember" name="LongtermContractMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_LongtermContractforSaleofElectricPowerShareofPlantOutputBeingSoldMW" name="LongtermContractforSaleofElectricPowerShareofPlantOutputBeingSoldMW" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_LongtermContractsforSaleofElectricPowerAxis" name="LongtermContractsforSaleofElectricPowerAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LongtermContractsforSaleofElectricPowerDomain" name="LongtermContractsforSaleofElectricPowerDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LongtermPSAMember" name="LongtermPSAMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MPUCMember" name="MPUCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ManitobaHydroMember" name="ManitobaHydroMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ManitobaHydroPpaExpires2035Member" name="ManitobaHydroPpaExpires2035Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ManufacturedGasPlantMember" name="ManufacturedGasPlantMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MedicarePartDRegulatoryAssetMember" name="MedicarePartDRegulatoryAssetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MinnesotaPowerMember" name="MinnesotaPowerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MinnesotaSolarEnergyStandardCampRipleyProjectMember" name="MinnesotaSolarEnergyStandardCampRipleyProjectMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MinnesotaSolarEnergyStandardCommunitySolarGardenProjectOwnedandOperatedMember" name="MinnesotaSolarEnergyStandardCommunitySolarGardenProjectOwnedandOperatedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MinnesotaSolarEnergyStandardCommunitySolarGardenProjectPurchasedOutputMember" name="MinnesotaSolarEnergyStandardCommunitySolarGardenProjectPurchasedOutputMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MinnesotaSolarEnergyStandardMember" name="MinnesotaSolarEnergyStandardMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MinnkotaPowerMember" name="MinnkotaPowerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MinnkotaSalesAgreementMember" name="MinnkotaSalesAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MunicipalCustomersMember" name="MunicipalCustomersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MunicipalMember" name="MunicipalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_NO2NAAQSMember" name="NO2NAAQSMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_NOVConsentDecreeMember" name="NOVConsentDecreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_NaturalGasPPAMember" name="NaturalGasPPAMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_NorthDakotaInvestmentTaxCreditsSubjecttoRefundMember" name="NorthDakotaInvestmentTaxCreditsSubjecttoRefundMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_NumberOfCustomers" name="NumberOfCustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_OcontoElectricCooperativeMember" name="OcontoElectricCooperativeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OcontoElectricCooperativePowerSalesAgreementMember" name="OcontoElectricCooperativePowerSalesAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OperatingandMaintenanceMember" name="OperatingandMaintenanceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OtherIncomeExpenseMember" name="OtherIncomeExpenseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OtherMember" name="OtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OtherPowerSupplierCustomersMember" name="OtherPowerSupplierCustomersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OtherPowerSuppliersMember" name="OtherPowerSuppliersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OzoneNAAQSMember" name="OzoneNAAQSMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_PSCWMember" name="PSCWMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_PalmCoastParkCommunityDevelopmentDistrictMember" name="PalmCoastParkCommunityDevelopmentDistrictMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_PercentageofTotalRegulatedUtilitykWhSales" name="PercentageofTotalRegulatedUtilitykWhSales" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_PointinTimeMember" name="PointinTimeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_PowerPurchaseAgreementCurrentLiability" name="PowerPurchaseAgreementCurrentLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ale_PowerPurchaseAgreementNoncurrentLiability" name="PowerPurchaseAgreementNoncurrentLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ale_ProposedReturnonCommonEquitybyRegulatoryOrganization" name="ProposedReturnonCommonEquitybyRegulatoryOrganization" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_ProposedReturnonEquitybyRegulatoryOrganizationIncludingIncentiveAdder" name="ProposedReturnonEquitybyRegulatoryOrganizationIncludingIncentiveAdder" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_ProvidedDiscountstoEITECustomerstobeOffsetAgainstInterimRateRefunds" name="ProvidedDiscountstoEITECustomerstobeOffsetAgainstInterimRateRefunds" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ale_ProvisionforInterimRateRefund" name="ProvisionforInterimRateRefund" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ProvisionforInterimRateRefundDomain" name="ProvisionforInterimRateRefundDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_ProvisionforInterimRateRefunds" name="ProvisionforInterimRateRefunds" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ale_ProvisionforTaxReformRefund" name="ProvisionforTaxReformRefund" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ProvisionforTaxReformRefundDomain" name="ProvisionforTaxReformRefundDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_ProvisionforTaxReformRefunds" name="ProvisionforTaxReformRefunds" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ale_PublicUtilitiesApprovedRateIncreaseDecreaseReconsiderationAmount" name="PublicUtilitiesApprovedRateIncreaseDecreaseReconsiderationAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_RateInformationByTypeDomain" name="RateInformationByTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_RateTypeAxis" name="RateTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_ReclassificationofPropertyPlantandEquipmenttoInventory" name="ReclassificationofPropertyPlantandEquipmenttoInventory" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_RegulatedOperationsMember" name="RegulatedOperationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_RegulatoryAssetsAndLiabilitiesLineItems" name="RegulatoryAssetsAndLiabilitiesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_RequestedCIPFinancialIncentive" name="RequestedCIPFinancialIncentive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ale_ReserveforInterimRateRefund" name="ReserveforInterimRateRefund" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_ResidentialMember" name="ResidentialMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ResourcePackageMember" name="ResourcePackageMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_RetailCustomersMember" name="RetailCustomersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_RetailElectricServiceMember" name="RetailElectricServiceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_RevenueCollectionPeriodFollowingtheAnnualPerioditisRecognized" name="RevenueCollectionPeriodFollowingtheAnnualPerioditisRecognized" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_RevenueOtherThanCustomerRevenue" name="RevenueOtherThanCustomerRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SWLPMember" name="SWLPMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SaleofEnergyunderPSAMember" name="SaleofEnergyunderPSAMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ScheduleOfRegulatoryAssetsAndLiabilitiesTable" name="ScheduleOfRegulatoryAssetsAndLiabilitiesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_ScheduleofCashCashEquivalentsandRestrictedCashTableTextBlock" name="ScheduleofCashCashEquivalentsandRestrictedCashTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ScheduleofPriorPeriodReclassificationAdjustmentsLineItems" name="ScheduleofPriorPeriodReclassificationAdjustmentsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ScheduleofPriorPeriodReclassificationAdjustmentsTable" name="ScheduleofPriorPeriodReclassificationAdjustmentsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_SitecontingencyLossExposureAccruedandBestEstimateofLossExposureinExcessofAccrual" name="SitecontingencyLossExposureAccruedandBestEstimateofLossExposureinExcessofAccrual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SolarEnergyGenerationMember" name="SolarEnergyGenerationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SolarEnergyPPAMember" name="SolarEnergyPPAMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_SolarEnergyStandardMandateOverallMandatePercentage" name="SolarEnergyStandardMandateOverallMandatePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_SolarEnergyStandardMandatePercentageofOverallMandateExpectedtobeMetwithCurrentFilingsorProjects" name="SolarEnergyStandardMandatePercentageofOverallMandateExpectedtobeMetwithCurrentFilingsorProjects" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_SolarEnergyStandardMandateQualifyingCapacityforSmallScaleSolarMandate" name="SolarEnergyStandardMandateQualifyingCapacityforSmallScaleSolarMandate" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_SolarEnergyStandardMandateSmallScaleSolarMandatePercentage" name="SolarEnergyStandardMandateSmallScaleSolarMandatePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_SquareButteCoalFiredUnitMember" name="SquareButteCoalFiredUnitMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SquareButteMember" name="SquareButteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SquareButtePpaMember" name="SquareButtePpaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SuretyBondsandLettersofCreditMember" name="SuretyBondsandLettersofCreditMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_TenaskaMember" name="TenaskaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_TenaskaPPAMember" name="TenaskaPPAMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_TerminationFee" name="TerminationFee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_TonkaWaterMember" name="TonkaWaterMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_TownCenterCommunityDevelopmentDistrictMember" name="TownCenterCommunityDevelopmentDistrictMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_TransmissionAxis" name="TransmissionAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_TransmissionDomain" name="TransmissionDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_TransmissionLineCapacityKv" name="TransmissionLineCapacityKv" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_TransmissionLineItems" name="TransmissionLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_TransmissionLineLengthMiles" name="TransmissionLineLengthMiles" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_TransmissionServicesUtility" name="TransmissionServicesUtility" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_TransmissionTable" name="TransmissionTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_U.S.WaterServicesMember" name="U.S.WaterServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_U.S.WaterServicesPatentDefenseLitigationMember" name="U.S.WaterServicesPatentDefenseLitigationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_UnamortizedDebtIssuanceExpenseDebtCurrent" name="UnamortizedDebtIssuanceExpenseDebtCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ale_UnamortizedDebtIssuanceExpenseLongTermDebtExcludingCurrentMaturities" name="UnamortizedDebtIssuanceExpenseLongTermDebtExcludingCurrentMaturities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_WholesaleAndRetailContraAfudcMember" name="WholesaleAndRetailContraAfudcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_WholesaleElectricContractCostBasedFormulaMethodologyforEntireTermMember" name="WholesaleElectricContractCostBasedFormulaMethodologyforEntireTermMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_WholesaleElectricContractTerminationEffectiveJune2019Member" name="WholesaleElectricContractTerminationEffectiveJune2019Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_WholesaleElectricContractsExpirefrom2024through2029Member" name="WholesaleElectricContractsExpirefrom2024through2029Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_WholesaleElectricServiceMember" name="WholesaleElectricServiceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_WindTurbineGeneratorsMember" name="WindTurbineGeneratorsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
