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  <xsd:element abstract="true" id="ale_CombinedCycleNaturalGasFiredGeneratingFacilityMember" name="CombinedCycleNaturalGasFiredGeneratingFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_CommercialMember" name="CommercialMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_CommunityDevelopmentDistrictObligationAnnualAssessment" name="CommunityDevelopmentDistrictObligationAnnualAssessment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ale_CommunityDevelopmentDistrictObligationBondInterestRate" name="CommunityDevelopmentDistrictObligationBondInterestRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_CommunityDevelopmentDistrictObligationBondTerminYears" name="CommunityDevelopmentDistrictObligationBondTerminYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_CommunityDevelopmentDistrictObligationOwnershipOfPropertyBenefited" name="CommunityDevelopmentDistrictObligationOwnershipOfPropertyBenefited" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_ComponentofOtherIncomeExpenseOtherAxis" name="ComponentofOtherIncomeExpenseOtherAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ComponentofOtherIncomeExpenseOtherDomain" name="ComponentofOtherIncomeExpenseOtherDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ConservationImprovementProgramMember" name="ConservationImprovementProgramMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ContractMember" name="ContractMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_ContractServingRequirement" name="ContractServingRequirement" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_CorporateOtherOtherMember" name="CorporateOtherOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_CostRecoveryRidersMember" name="CostRecoveryRidersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_CostsIncurredCapitalizedAssetRetirementObligationCosts" name="CostsIncurredCapitalizedAssetRetirementObligationCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_CurrentCostRecoveryRiderMember" name="CurrentCostRecoveryRiderMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_CustomerClassAxis" name="CustomerClassAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_CustomerClassDomain" name="CustomerClassDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_CustomerTypeAxis" name="CustomerTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_CustomerTypeDomain" name="CustomerTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_DebtInstrumentActualIndebtednessToTotalCapitalRatio" name="DebtInstrumentActualIndebtednessToTotalCapitalRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_DebtInstrumentRenewalTerm" name="DebtInstrumentRenewalTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_DebtInstrumentRequiredIndebtednessToTotalCapitalRatio" name="DebtInstrumentRequiredIndebtednessToTotalCapitalRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_DecreaseinInvestmentofEquityMethodInvestee" name="DecreaseinInvestmentofEquityMethodInvestee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ale_DeferredFederalIncomeTaxExpenseBenefitRemeasurementofDeferredIncomeTaxes" name="DeferredFederalIncomeTaxExpenseBenefitRemeasurementofDeferredIncomeTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ale_DeferredTaxAssetsRegulatoryLiabilities" name="DeferredTaxAssetsRegulatoryLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ale_DeferredTaxLiabilitiesRegulatoryAssetsforBenefitObligations" name="DeferredTaxLiabilitiesRegulatoryAssetsforBenefitObligations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ale_DeferredTaxLiabiltyPartnershipBasisDifferences" name="DeferredTaxLiabiltyPartnershipBasisDifferences" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ale_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostsFuturePeriod" name="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostsFuturePeriod" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_DefinedBenefitPlanContributionsByPlanParticipantsExcludingKeyEmployees" name="DefinedBenefitPlanContributionsByPlanParticipantsExcludingKeyEmployees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ale_DefinedBenefitPlanPlanAssetsCashContributionsbyEmployer" name="DefinedBenefitPlanPlanAssetsCashContributionsbyEmployer" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_DiamondSpringMember" name="DiamondSpringMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_EasementsMember" name="EasementsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_EffectiveIncomeTaxRateReconciliationRegulatoryDifferences" name="EffectiveIncomeTaxRateReconciliationRegulatoryDifferences" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ale_EffectiveIncomeTaxRateReconciliationRemeasurementofDeferredIncomeTaxes" name="EffectiveIncomeTaxRateReconciliationRemeasurementofDeferredIncomeTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ale_EffectiveIncomeTaxrateReconciliationStockBasisDifference" name="EffectiveIncomeTaxrateReconciliationStockBasisDifference" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ElectricRatesMember" name="ElectricRatesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_EquityIssuanceProgramSharesAuthorized" name="EquityIssuanceProgramSharesAuthorized" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_EquityIssuanceProgramSharesAvailableForIssuance" name="EquityIssuanceProgramSharesAvailableForIssuance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <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_EquityMethodInvestmentExpectedAdditionalInvestmentNextFiscalYear" name="EquityMethodInvestmentExpectedAdditionalInvestmentNextFiscalYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_EquityMethodInvestmentSummarizedFinancialInformationBalanceSheetAbstract" name="EquityMethodInvestmentSummarizedFinancialInformationBalanceSheetAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_EquityMethodInvestmentSummarizedFinancialInformationLongTermDebt" name="EquityMethodInvestmentSummarizedFinancialInformationLongTermDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ale_EquityMethodInvestmentSummarizedFinancialInformationOperatingExpense" name="EquityMethodInvestmentSummarizedFinancialInformationOperatingExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ale_EquityMethodInvestmentSummarizedFinancialInformationOtherExpense" name="EquityMethodInvestmentSummarizedFinancialInformationOtherExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ale_EquityMethodInvestmentSummarizedFinancialInformationOtherNonCurrentLiabilities" name="EquityMethodInvestmentSummarizedFinancialInformationOtherNonCurrentLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" 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_EstimatedProjectCost" name="EstimatedProjectCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ale_ExciseTaxPolicyPolicyTextBlock" name="ExciseTaxPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ExecutivePlanMember" name="ExecutivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_ExpectedPeriodforCostsofCompliance" name="ExpectedPeriodforCostsofCompliance" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_ExpectedPeriodtoIncurRemediationCosts" name="ExpectedPeriodtoIncurRemediationCosts" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_ExpectedTaxEquityFinancing" name="ExpectedTaxEquityFinancing" 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_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_FiniteLivedIntangibleAssetsOtherChanges" name="FiniteLivedIntangibleAssetsOtherChanges" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" 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 abstract="true" id="ale_GainLossonLandSalesMember" name="GainLossonLandSalesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_GainonSaleofAffiliateAftertax" name="GainonSaleofAffiliateAftertax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" 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 id="ale_GeneratingCapacityUnderConstructionMW" name="GeneratingCapacityUnderConstructionMW" 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_GreatRiverEnergyCapacityOnlyPPABeginning2016expires2020Member" name="GreatRiverEnergyCapacityOnlyPPABeginning2016expires2020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_GreatRiverEnergyCapacityOnlyPPABeginning2017expires2020Member" name="GreatRiverEnergyCapacityOnlyPPABeginning2017expires2020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_GreatRiverEnergyMember" name="GreatRiverEnergyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_GreatRiverEnergyPPAexpires2020Member" name="GreatRiverEnergyPPAexpires2020Member" 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 id="ale_IncomeTaxExpenseBenefitDuetoSaleofSubsidiary" name="IncomeTaxExpenseBenefitDuetoSaleofSubsidiary" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_IncomeTaxExpenseMember" name="IncomeTaxExpenseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <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_IncreasetoRegulatoryAssets" name="IncreasetoRegulatoryAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ale_IncreasetoRegulatoryLiabilities" name="IncreasetoRegulatoryLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ale_IndefiniteLivedIntangibleAssetsOtherChanges" name="IndefiniteLivedIntangibleAssetsOtherChanges" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <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_IndustrialDevelopmentVariableRateDemandRefundingRevenueBondsSeries2006Due2025Member" name="IndustrialDevelopmentVariableRateDemandRefundingRevenueBondsSeries2006Due2025Member" 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_IntangibleAssetsOtherChanges" name="IntangibleAssetsOtherChanges" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_InterestandInvestmentEarningsMember" name="InterestandInvestmentEarningsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_InternationalMember" name="InternationalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_JointlyOwnedElectricFacilityPercentageNotOwned" name="JointlyOwnedElectricFacilityPercentageNotOwned" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_JointlyOwnedElectricFacilityTextBlock" name="JointlyOwnedElectricFacilityTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_JointlyOwnedFacilitiesandAssetsAbstract" name="JointlyOwnedFacilitiesandAssetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" 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 abstract="true" id="ale_LandandOtherMember" name="LandandOtherMember" 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 abstract="true" id="ale_LargePowerCustomerMember" name="LargePowerCustomerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LargestCustomerMember" name="LargestCustomerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LeasesMaturitiesAbstract" name="LeasesMaturitiesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <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_LettersofCreditMaximumIssuances" name="LettersofCreditMaximumIssuances" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ale_LineofCreditAmountPledgedforLettersofCredit" name="LineofCreditAmountPledgedforLettersofCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ale_LineofCreditFacilityAdditionalBorrowingCapacity" name="LineofCreditFacilityAdditionalBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ale_LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchasedMw" name="LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchasedMw" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchasedMwh" name="LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchasedMwh" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputPurchasedMw" name="LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputPurchasedMw" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_LongTermContractforPurchaseofElectricEnergyMW" name="LongTermContractforPurchaseofElectricEnergyMW" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_LongTermServiceAgreementsMember" name="LongTermServiceAgreementsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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 abstract="true" id="ale_LongtermContractforPurchaseofElectricCapacityAxis" name="LongtermContractforPurchaseofElectricCapacityAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LongtermContractforPurchaseofElectricCapacityDomain" name="LongtermContractforPurchaseofElectricCapacityDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_LongtermContractforPurchaseofElectricCapacityMW" name="LongtermContractforPurchaseofElectricCapacityMW" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_LongtermContractforPurchaseofElectricEnergyandCapacityMW" name="LongtermContractforPurchaseofElectricEnergyandCapacityMW" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_LongtermContractforPurchaseofElectricPowerAnnualMinimumDebtServicePaymentRequiredObligationPercentage" name="LongtermContractforPurchaseofElectricPowerAnnualMinimumDebtServicePaymentRequiredObligationPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_LongtermContractforPurchaseofElectricPowerTermofContractYears" name="LongtermContractforPurchaseofElectricPowerTermofContractYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LongtermContractforPurchaseofEnergyAxis" name="LongtermContractforPurchaseofEnergyAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LongtermContractforPurchaseofEnergyDomain" name="LongtermContractforPurchaseofEnergyDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LongtermContractforSaleofCapacityAxis" name="LongtermContractforSaleofCapacityAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LongtermContractforSaleofCapacityDomain" name="LongtermContractforSaleofCapacityDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_LongtermContractforSaleofElectricCapacityMW" name="LongtermContractforSaleofElectricCapacityMW" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_LongtermContractforSaleofElectricEnergyMW" name="LongtermContractforSaleofElectricEnergyMW" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="ale_LongtermContractforSaleofElectricEnergyandCapacityMW" name="LongtermContractforSaleofElectricEnergyandCapacityMW" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ale_LongtermContractforSaleofEnergyAxis" name="LongtermContractforSaleofEnergyAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_LongtermContractforSaleofEnergyDomain" name="LongtermContractforSaleofEnergyDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <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_ManitobaHydroPPABeginningJune2017expiresMay2020Member" name="ManitobaHydroPPABeginningJune2017expiresMay2020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ManitobaHydroPPAexpires2040Member" name="ManitobaHydroPPAexpires2040Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_ManitobaHydroPPAexpiresMay2020Member" name="ManitobaHydroPPAexpiresMay2020Member" 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_ManitobaHydroPpaExpiresApril2022Member" name="ManitobaHydroPpaExpiresApril2022Member" 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_MinnkotaPowerMember" name="MinnkotaPowerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_MinnkotaPpaMember" name="MinnkotaPpaMember" 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 id="ale_Morelikelythannotdefined" name="Morelikelythannotdefined" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" 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_NaturalGasMember" name="NaturalGasMember" 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_NemadjiTrailEnergyCenterMember" name="NemadjiTrailEnergyCenterMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_Nobles2Member" name="Nobles2Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_NolAndTaxCreditCarryforwardsLineItems" name="NolAndTaxCreditCarryforwardsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_NolAndTaxCreditCarryforwardsTable" name="NolAndTaxCreditCarryforwardsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" 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_OliverWindIPpaMember" name="OliverWindIPpaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OliverWindIiPpaMember" name="OliverWindIiPpaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OliverWindMember" name="OliverWindMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OtherIncomeExpenseOtherAbstract" name="OtherIncomeExpenseOtherAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OtherIncomeExpenseOtherLineItems" name="OtherIncomeExpenseOtherLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OtherIncomeExpenseOtherMember" name="OtherIncomeExpenseOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OtherIncomeExpenseOtherTable" name="OtherIncomeExpenseOtherTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_OtherLongTermDebtMember" name="OtherLongTermDebtMember" 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 id="ale_OtherPostretirementBenefitPlans" name="OtherPostretirementBenefitPlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <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_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 abstract="true" id="ale_PensionandOtherPostretirementBenefitPlansNonServiceCreditMember" name="PensionandOtherPostretirementBenefitPlansNonServiceCreditMember" 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 abstract="true" id="ale_PowerPurchaseAgreementMember" name="PowerPurchaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <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_PowerPurchaseAgreementsDeferredTaxAsset" name="PowerPurchaseAgreementsDeferredTaxAsset" 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_PurchaseOptionAsset" name="PurchaseOptionAsset" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <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 id="ale_RecognitionofRightofuseAssetsandLeaseLiabilities" name="RecognitionofRightofuseAssetsandLeaseLiabilities" 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_RegulatedOperationsMemberMember" name="RegulatedOperationsMemberMember" 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 abstract="true" id="ale_RemeasurementofDeferredIncomeTaxesResultingfromtheTCJAAbstract" name="RemeasurementofDeferredIncomeTaxesResultingfromtheTCJAAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_RenewableCostRecoveryRiderMember" name="RenewableCostRecoveryRiderMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <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_SWLPFirstMortgageBonds4.14SeriesDue2048Member" name="SWLPFirstMortgageBonds4.14SeriesDue2048Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SWLPFirstMortgageBonds4.15SeriesDue2028Member" name="SWLPFirstMortgageBonds4.15SeriesDue2028Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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 id="ale_SaleofWindEnergyFacility" name="SaleofWindEnergyFacility" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SaleofWindEnergyFacilityMember" name="SaleofWindEnergyFacilityMember" 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 id="ale_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodTotalGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodTotalGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ale_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearnedGrantAward" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearnedGrantAward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearnedGrantAwardWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearnedGrantAwardWeightedAverageGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SilverBayPowerCoalLiquidandGaseousFuelsfiredUnitsMember" name="SilverBayPowerCoalLiquidandGaseousFuelsfiredUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SilverBayPowerMember" name="SilverBayPowerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SilverBayPowerSalesAgreementthrough2031Years20162019Member" name="SilverBayPowerSalesAgreementthrough2031Years20162019Member" 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_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 id="ale_StockIssuedDuringPeriodSharesShareBasedCompensationAndEsopGross" name="StockIssuedDuringPeriodSharesShareBasedCompensationAndEsopGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_StockIssuedDuringPeriodValueShareBasedCompensationAndEsopGross" name="StockIssuedDuringPeriodValueShareBasedCompensationAndEsopGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_SuperiorWIMember" name="SuperiorWIMember" 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 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 abstract="true" id="ale_TransmissionFormulaRatesMember" name="TransmissionFormulaRatesMember" 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 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_U.S.WaterServicesMember" name="U.S.WaterServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_USLargeCapMember" name="USLargeCapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_USMidCapGrowthMember" name="USMidCapGrowthMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_USSmallCapMember" name="USSmallCapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ale_UnsecuredTermLoanAmount" name="UnsecuredTermLoanAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_UnsecuredTermLoanDuein2020Member" name="UnsecuredTermLoanDuein2020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_UnsecuredTermLoanDuein2021Member" name="UnsecuredTermLoanDuein2021Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_VariableDemandRevenueRefundingBondsSeries1997AbcDue20132020Member" name="VariableDemandRevenueRefundingBondsSeries1997AbcDue20132020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_VebaMember" name="VebaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_VehiclesandEquipmentMember" name="VehiclesandEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_WPPIEnergyMember" name="WPPIEnergyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ale_WaterMember" name="WaterMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <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>
