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C001789 HH8287055264BD6F993581C2F22383C4AD 2024-01-012024-03-31 C001789 HH5A00FD32E469641EAC99E56D80749228 2024-01-012024-03-31 C001789 HHE5A681DC37270D0A5F6560F1B47D85EF 2024-01-012024-03-31 C001789 Montana Operations 2024-01-012024-03-31 C001789 HHDE458B788D4277FF3FC8F3E920F6E7FF 2024-01-012024-03-31 C001789 HH2F80010F8394F5375C6B1300C7A9E19F 2023-12-31 C001789 HH7175A5786B331A42B933B37763E47800 2024-01-012024-03-31 C001789 HH84E34CD19DB6EF14FC66454C348C7DC6 2023-12-31 C001789 ferc:TransmissionStudiesMember HHDA66D264D537CFF0D8BFAEB3FD62149D 2024-01-012024-03-31 C001789 HH567385A16095817631473BC399145404 2024-03-31 C001789 HHB5E2C0C076BA578F699E367D823328E2 2024-01-012024-03-31 C001789 HH06ECF7086F0A59ED1610913EFD3F4607 2024-03-31 C001789 HH31E21BF9B45D46D1D980E5742BE2004C 2024-01-012024-03-31 C001789 HH567385A16095817631473BC399145404 2024-01-012024-03-31 C001789 HH729590C4F4873EB3B3B9FC8FE074C650 2024-01-012024-03-31 C001789 HHDEF3D5368E036FA6ED900BF054DA57A9 2024-01-012024-03-31 C001789 HH2323EAC00FFF38FD74DFB43AD1552D59 2024-01-012024-03-31 C001789 HH0A076BB8EB3CCD5A4A1AF65D83E39678 2024-01-012024-03-31 C001789 HHEDF06E010FC9551149B9AD7780BC7FEB 2024-01-012024-03-31 C001789 HH3CAD28A2181B66EAF919BB9CDFC62CCE 2024-01-012024-03-31 C001789 HH506B02F9F018728086A6E3EB69BCB68A 2024-01-012024-03-31 C001789 HH1E32B8685AB68B96E7638C68E45C231A 2024-01-012024-03-31 C001789 ScheduleRegionalTransmissionServiceRevenuesAbstract 2024-01-012024-03-31 C001789 HHA12616938D9C065855AAC7E22C5F29A1 2023-12-31 C001789 HHF6141537005574D5F85E2D546AE05EA2 2024-01-012024-03-31 C001789 HH06E2F90B7FA80DDA6F957A1C77BE9EF3 2024-01-012024-03-31 C001789 HH4E46E91E4306196B9EFF2542FE0B1623 2024-01-012024-03-31 C001789 HHB591E4C03DCD0EB2830F9F9E70ECF8FF 2024-01-012024-03-31 C001789 HHDA024BFCE9C9F24BDAB2132782F1D30C 2023-12-31 C001789 HH7D3F8BBCA4347CE1A59CB27FCF396FAB 2024-01-012024-03-31 C001789 HH7F7B2C0CC2AE4E43786B81F56E916742 2024-01-012024-03-31 C001789 HH5D503FC419A855A7A35C2748DF5AA7D2 2024-03-31 C001789 HH781940642CFC87561635127AA8946759 2024-01-012024-03-31 C001789 HHF7CEFE07D4C03F4BF09B95CC717CF29C 2024-01-012024-03-31 C001789 HH35B970BBDFACDB2F33818D1D94A688BB 2024-01-012024-03-31 C001789 HH6D7BB8481AC31F25777F52E73017E7D7 2024-01-012024-03-31 C001789 ferc:GasUtilityMember 2024-01-012024-03-31 C001789 HH1B154DD85736B8D33B2C0993BE915912 2024-01-012024-03-31 C001789 HH6BA3235A87BE86ABFADFFF136A40F690 2024-03-31 C001789 HHADA3D1DA8E91EB1A3B95FFB58D77A9F8 2024-01-012024-03-31 C001789 HH95E6E7AF8F8C20AF0F5B8F7F764CB0C6 2024-01-012024-03-31 C001789 HH8D01C5249A1CCB7B86F36AFD36443208 2024-01-012024-03-31 C001789 ferc:GenerationStudiesMember HHE4B855E3C4EE7B5D5463462398AC3357 2024-01-012024-03-31 C001789 HHB261C9784E59437BD309BFE407BDFAAB 2023-12-31 C001789 HHC84438F0BBD9672E9D0B4A9B7714E093 2024-01-012024-03-31 C001789 HH74598AF814F798F2736634D9DD96F01F 2024-01-012024-03-31 C001789 HHA12616938D9C065855AAC7E22C5F29A1 2024-01-012024-03-31 C001789 HH55D5D35A5E8A2962D12D256DAE9CAFB6 2024-01-012024-03-31 C001789 ferc:SteamProductionPlantMemberferc:ElectricUtilityMember 2024-01-012024-03-31 C001789 HH3CE507396A71B59BF8F7018C97A943F2 2024-01-012024-03-31 C001789 HH178D7742BEE1F6755401BCFD26623BE5 2024-01-012024-03-31 C001789 HH38808309EBD48D0C7B22B5768E1C8917 2024-01-012024-03-31 C001789 HH51B855D53062580EF574197BC7709754 2024-01-012024-03-31 C001789 HH06ECF7086F0A59ED1610913EFD3F4607 2023-12-31 C001789 HH3B9964C63FE1EF18233F248EEF100351 2024-01-012024-03-31 C001789 HH81B1C2167FF6DE035A5260D25D57642A 2024-01-012024-03-31 C001789 2023-12-31 C001789 HH06ECF7086F0A59ED1610913EFD3F4607 2024-01-012024-03-31 C001789 HH730B789553F169FB99659C753301F754 2023-12-31 C001789 HH5D503FC419A855A7A35C2748DF5AA7D2 2024-01-012024-03-31 C001789 HHDA66D264D537CFF0D8BFAEB3FD62149D 2024-01-012024-03-31 C001789 HH1D2C5C506DEFB13D0D1A3C33AEE9B0CF 2024-01-012024-03-31 C001789 HH1C7B6A3EF01B4D16072D79715CD84FBD 2024-01-012024-03-31 C001789 HH9B6EBA1BD55DE034837AD2F253FB6B15 2024-01-012024-03-31 C001789 HH74598AF814F798F2736634D9DD96F01F 2024-03-31 C001789 HHCF2EDDF9B333798EF6C8779ED5321053 2024-01-012024-03-31 C001789 HH310D23E0BFB8F814104E87DBA3C889FA 2024-01-012024-03-31 C001789 ferc:DistributionPlantMemberferc:ElectricUtilityMember 2024-01-012024-03-31 C001789 HHE5B384A2AC6527B02FEB06144181AE2A 2024-01-012024-03-31 C001789 HH56783C9E7622C33C29DF04132ED221AE 2024-01-012024-03-31 C001789 HH4D2FE85991A789A5CC30B257AF3EE2C5 2024-01-012024-03-31 C001789 HHBBA31A1BFF99E7F964EBDA595D49C573 2024-01-012024-03-31 C001789 HH2FFB475EA80C943B2AA041E375443CF2 2024-01-012024-03-31 C001789 HHC37617E4173DA7DB3F457572BDB19E61 2024-01-012024-03-31 C001789 HH31F7F8B372FE23CCEA5F0F3DBA5AF006 2024-01-012024-03-31 C001789 HH6D38E12DF60860DDFD35C6DBDD320199 2023-01-012023-03-31 C001789 HHF1CBD08CFDFD880F6D8A2FAFFAC9814E 2024-01-012024-03-31 C001789 HHF3B68F3EC22A68CACD24FCE44FDC92F9 2024-01-012024-03-31 C001789 HH567385A16095817631473BC399145404 2023-12-31 C001789 HH46CA062A90063FD57B7B4251CBC3539A 2024-03-31 C001789 HH15315A379AD45C6C80B4CB4B0F581A01 2024-01-012024-03-31 C001789 HHF83915C4D9AAFCF8EA12F5BB9038686F 2024-01-012024-03-31 C001789 HH46CA062A90063FD57B7B4251CBC3539A 2023-12-31 C001789 HHF13F279E8D9DFF2AA7FCA79847BF3454 2023-01-012023-03-31 C001789 HH74874A10F7A740380FF979A34685A0DD 2024-01-012024-03-31 C001789 HHDEBF4F6E09F2F3FE8195B2BB26208897 2024-01-012024-03-31 C001789 HHE42A39BC45634AE588BB0034D6D30DB8 2024-01-012024-03-31 C001789 HHA9B3EE7C00D8748CF40B04998E85EDD5 2024-01-012024-03-31 C001789 HH28093D108AF8706F3A3E4084328177B4 2024-01-012024-03-31 C001789 HHF97AC6263345267A6E6B05A755157CDD 2024-01-012024-03-31 C001789 HH8716F2CC5208D26ED42C6691903C182F 2024-01-012024-03-31 C001789 HH8D23AC957F7CA87A29B37F68D1C49368 2024-01-012024-03-31 C001789 HHFB6BE7D3DFE5AFA4885BB9D1C0D06D42 2024-01-012024-03-31 C001789 HHF2FE8F837F9F58EA51D77565BDEA58F6 2024-01-012024-03-31 C001789 HHEBEBC30DEEC3B9D1B43F95EE8AD995D2 2024-01-012024-03-31 C001789 HHF7C5E1EDE236AB301D8EC02580FDC285 2024-01-012024-03-31 C001789 HH7AB79A39EF97DA1CAE29DE47D3332CC9 2024-01-012024-03-31 C001789 HH730D890E8BEA00B3DD6D2F3CE209AF1F 2024-01-012024-03-31 C001789 HH11D30DC505C8E4EF599D4D4136C41073 2023-12-31 C001789 HHF810E80018956DF0BC3C6B6CA9B99BF6 2024-01-012024-03-31 C001789 HH955EC542845D6BA63983C8403986FC22 2024-01-012024-03-31 C001789 HH27473B2039E076D2D4D32A58F2A8FFF8 2024-01-012024-03-31 C001789 HH38D260E42DF8DE3330DF669CFAE68D60 2024-01-012024-03-31 C001789 HHE5365B64489476D855B9577EFE139C7F 2024-01-012024-03-31 C001789 HHEC4095ACED8C8BF245B4E37C99DCD8F4 2024-01-012024-03-31 C001789 ferc:CommonUtilityMember 2024-03-31 C001789 ferc:ElectricUtilityMember 2024-01-012024-03-31 C001789 HHC6A7FBE869B5D338F26C6BE58100676B 2024-01-012024-03-31 C001789 HH3D92A18B6CFADEB299433204FD09519C 2024-01-012024-03-31 C001789 HH515B97AC27E0699C8C8821BF6A4873EF 2024-01-012024-03-31 C001789 HHED9B5D93B10F95F9330832F1FD93753B 2024-03-31 C001789 HH2204756BFCCE25B506942131ECF11039 2024-01-012024-03-31 C001789 HH30B57A40A075627E126CA77CE847B055 2024-01-012024-03-31 C001789 HHAFC724F459551BB0415D7CCA9E71B005 2024-01-012024-03-31 C001789 HH7042628AF680D35AF087F596E571C40E 2024-01-012024-03-31 C001789 HHF836815E9BB6A91E5C2408903061BA61 2024-01-012024-03-31 C001789 HH46CA062A90063FD57B7B4251CBC3539A 2024-01-012024-03-31 C001789 HHB902AEA0B415C3C3F32C96EFF2843E26 2024-01-012024-03-31 C001789 ferc:HydraulicProductionPlantPumpedStorageMemberferc:ElectricUtilityMember 2024-01-012024-03-31 C001789 HH9BF6AF545E439334EB82B8A36BD6BF28 2024-01-012024-03-31 C001789 HH7466A75A6AE5007278C87CBACD211DC4 2024-01-012024-03-31 C001789 ScheduleAmountsIncludedInIsoOrRtoSettlementAbstract 2024-01-012024-03-31 C001789 HHAA64180B598B31829D298C05A86E3AA7 2024-01-012024-03-31 C001789 HHDD05915C7115D85E79703ACB5D417524 2024-01-012024-03-31 C001789 HH67658B7C99CE439B5716100DDE7AF9B0 2024-01-012024-03-31 C001789 HHA122F69E3249C1054ED1C5EDDA916F83 2024-01-012024-03-31 C001789 HH0B32B15593A18B53629E5DECD84C43C8 2024-01-012024-03-31 C001789 HH12B11AFD790F18F90C85E2CC0C11664F 2024-01-012024-03-31 C001789 HH8AE2FFFD4CB55D044CFE6F2E6B9DD7A7 2024-01-012024-03-31 C001789 HHB98828689D582DF5F961FDD40816C858 2024-01-012024-03-31 C001789 HHDC26F547662DDAACE0EE1DB34259AEE7 2024-01-012024-03-31 C001789 HHCCD04BD6E82964E348A3F0F1A03DE9F2 2024-03-31 C001789 HHED9B5D93B10F95F9330832F1FD93753B 2023-12-31 C001789 HH6F076A4A98F49BDEFFB71B8C225DEBF8 2024-01-012024-03-31 C001789 HH7D3F8BBCA4347CE1A59CB27FCF396FAB 2023-12-31 C001789 HH467F66FECFC8A4A90FAA21666D676314 2024-01-012024-03-31 C001789 HHB261C9784E59437BD309BFE407BDFAAB 2024-03-31 C001789 HH72508DC597456BD9D1550970F9339117 2024-01-012024-03-31 C001789 HH5A42F9DEB0A90517C1D09F1398986400 2024-01-012024-03-31 C001789 HH1FC8073C3C518546CE4BD92B51A22F13 2024-01-012024-03-31 C001789 ferc:GasUtilityMember 2023-01-012023-03-31 C001789 HH44C4F3DE6A3F564D44298AB0B5909A50 2024-01-012024-03-31 C001789 HH36B658654A3B30EB69AAE81025982EF5 2024-01-012024-03-31 C001789 HHD96FA964D9CCE61487829C675DBEA372 2024-01-012024-03-31 C001789 HH1E24503262213C4F59BA2E27B6305EE6 2024-01-012024-03-31 C001789 HHDE458B788D4277FF3FC8F3E920F6E7FF 2024-03-31 C001789 HHA4F41BF58DA5EF95C7DBF76E4775E36E 2024-01-012024-03-31 C001789 ferc:ElectricUtilityMember 2024-03-31 C001789 HHCB0AEE8C9C445519BA6615915CCED2A4 2024-01-012024-03-31 C001789 HH124ACEE97EF07AD384D5B4FC4051E85F 2024-01-012024-03-31 C001789 HHA3275C42561E479B82D009D37A9B8F4F 2024-01-012024-03-31 C001789 HHA9C4CB0DF44A9012A11959EF79DACA29 2024-01-012024-03-31 C001789 ferc:TransmissionStudiesMember HHC643216C785FB85600A46C1E9B6DCA12 2024-01-012024-03-31 C001789 HH6FE06A46FF8F307142FEACC67D219151 2023-12-31 C001789 HH8F76009DC5BC99E75638E7368952D38E 2024-01-012024-03-31 C001789 HH20CDF311013AC2E164F3EFFE3C8DA924 2024-01-012024-03-31 C001789 HHDE2AD29AF6C449E702B578EC958DED79 2024-01-012024-03-31 C001789 HH6311AE17C1EE52B36E68AAF4AD066387 2024-01-012024-03-31 C001789 HHB2EDFFEB71145B67DCD5BA1307DA4529 2024-01-012024-03-31 C001789 HHA3D8642317E9F44B0EDB549E994F1B60 2024-01-012024-03-31 C001789 HH0FE0C39682E006EE4E020D86E9DC66B2 2024-01-012024-03-31 C001789 HH7D74B7F0B65F08E55F9875002C44167E 2024-01-012024-03-31 C001789 HHA986FA301CE053DDFB60DE38E945681B 2024-01-012024-03-31 C001789 HH6FE06A46FF8F307142FEACC67D219151 2024-01-012024-03-31 C001789 HHCAD0952441D825F668C2058224A07EF1 2024-01-012024-03-31 C001789 HH5BB7A65A9AC6E3D7EEC2B578371336CD 2024-01-012024-03-31 C001789 ScheduleTransmissionOfElectricityByIsoOrRtoAbstract 2024-01-012024-03-31 C001789 HH36993254AE102D44910906F994570200 2024-01-012024-03-31 C001789 HHF68EDBAD10FE06FF713AA1A416F37B6A 2024-01-012024-03-31 C001789 HH10F68C1655C38A515EEBE68EDBBE55D0 2024-01-012024-03-31 C001789 HH6FE06A46FF8F307142FEACC67D219151 2024-03-31 C001789 HHE86F0904A4AE6D71B880C90C726F4B5B 2024-01-012024-03-31 C001789 HHF07152F8B9E1CBB548FD15DB70DD4163 2024-01-012024-03-31 C001789 HH11D30DC505C8E4EF599D4D4136C41073 2024-01-012024-03-31 C001789 HH170FC8CBB24A2C0ACC6574BE1B06BA88 2024-01-012024-03-31 C001789 HH0BCBE5A8CE92F4976792AF50C3EFB81F 2024-01-012024-03-31 C001789 HH08DFE46BD5E407BBDC7DE8F9B701CA8E 2024-01-012024-03-31 C001789 HH4847E0801F9B4F186ADA1E8653A5E95C 2024-01-012024-03-31 C001789 HH2632181AE2E752074CC7650A74773E01 2024-01-012024-03-31 C001789 HH15B19B73B7282E993ECBF0C24A06FB02 2024-01-012024-03-31 C001789 HH10D5824340F5C64A4DAC5138FDC70A48 2024-01-012024-03-31 C001789 HH51E2E9181FB4445842008A78F99B28C8 2024-01-012024-03-31 C001789 HH8BBD1D9FE42A56A3B25C20D5720F8A02 2024-01-012024-03-31 C001789 HH6BA3235A87BE86ABFADFFF136A40F690 2023-12-31 C001789 HH6F2D0A774EE212F486072C23882CBD2A 2024-01-012024-03-31 C001789 2022-12-31 C001789 HHE200542A4E4E72D48FEBA88E7443C512 2024-01-012024-03-31 C001789 HHECA9FCC5D31A86B4D3CC3DAB1DC861FF 2024-01-012024-03-31 C001789 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THIS FILING IS
Item 1:
An Initial (Original) Submission
OR
Resubmission No.

FERC FINANCIAL REPORT
FERC FORM No. 1: Annual Report of
Major Electric Utilities, Licensees
and Others and Supplemental
Form 3-Q: Quarterly Financial Report

These reports are mandatory under the Federal Power Act, Sections 3, 4(a), 304 and 309, and 18 CFR 141.1 and 141.400. Failure to report may result in criminal fines, civil penalties and other sanctions as provided by law. The Federal Energy Regulatory Commission does not consider these reports to be of confidential nature
Exact Legal Name of Respondent (Company)

NorthWestern Corporation
Year/Period of Report

End of:
2024
/
Q1


INSTRUCTIONS FOR FILING FERC FORM NOS. 1 and 3-Q

GENERAL INFORMATION

  1. Purpose

    FERC Form No. 1 (FERC Form 1) is an annual regulatory requirement for Major electric utilities, licensees and others (18 C.F.R. § 141.1). FERC Form No. 3-Q ( FERC Form 3-Q) is a quarterly regulatory requirement which supplements the annual financial reporting requirement (18 C.F.R. § 141.400). These reports are designed to collect financial and operational information from electric utilities, licensees and others subject to the jurisdiction of the Federal Energy Regulatory Commission. These reports are also considered to be non-confidential public use forms.
  2. Who Must Submit

    Each Major electric utility, licensee, or other, as classified in the Commission’s Uniform System of Accounts Prescribed for Public Utilities, Licensees, and Others Subject To the Provisions of The Federal Power Act (18 C.F.R. Part 101), must submit FERC Form 1 (18 C.F.R. § 141.1), and FERC Form 3-Q (18 C.F.R. § 141.400).

    Note: Major means having, in each of the three previous calendar years, sales or transmission service that exceeds one of the following:
    1. one million megawatt hours of total annual sales,
    2. 100 megawatt hours of annual sales for resale,
    3. 500 megawatt hours of annual power exchanges delivered, or
    4. 500 megawatt hours of annual wheeling for others (deliveries plus losses).
  3. What and Where to Submit

    1. Submit FERC Form Nos. 1 and 3-Q electronically through the eCollection portal at https://eCollection.ferc.gov, and according to the specifications in the Form 1 and 3-Q taxonomies.
    2. The Corporate Officer Certification must be submitted electronically as part of the FERC Forms 1 and 3-Q filings.
    3. Submit immediately upon publication, by either eFiling or mail, two (2) copies to the Secretary of the Commission, the latest Annual Report to Stockholders. Unless eFiling the Annual Report to Stockholders, mail the stockholders report to the Secretary of the Commission at:
      Secretary
      Federal Energy Regulatory Commission 888 First Street, NE
      Washington, DC 20426
    4. For the CPA Certification Statement, submit within 30 days after filing the FERC Form 1, a letter or report (not applicable to filers classified as Class C or Class D prior to January 1, 1984). The CPA Certification Statement can be either eFiled or mailed to the Secretary of the Commission at the address above.

      The CPA Certification Statement should:
      1. Attest to the conformity, in all material aspects, of the below listed (schedules and pages) with the Commission's applicable Uniform System of Accounts (including applicable notes relating thereto and the Chief Accountant's published accounting releases), and
      2. Be signed by independent certified public accountants or an independent licensed public accountant certified or licensed by a regulatory authority of a State or other political subdivision of the U. S. (See 18 C.F.R. §§ 41.10-41.12 for specific qualifications.)

        Schedules
        Pages
        Comparative Balance Sheet 110-113
        Statement of Income 114-117
        Statement of Retained Earnings 118-119
        Statement of Cash Flows 120-121
        Notes to Financial Statements 122-123
    5. The following format must be used for the CPA Certification Statement unless unusual circumstances or conditions, explained in the letter or report, demand that it be varied. Insert parenthetical phrases only when exceptions are reported.

      “In connection with our regular examination of the financial statements of [COMPANY NAME] for the year ended on which we have reported separately under date of [DATE], we have also reviewed schedules [NAME OF SCHEDULES] of FERC Form No. 1 for the year filed with the Federal Energy Regulatory Commission, for conformity in all material respects with the requirements of the Federal Energy Regulatory Commission as set forth in its applicable Uniform System of Accounts and published accounting releases. Our review for this purpose included such tests of the accounting records and such other auditing procedures as we considered necessary in the circumstances.

      Based on our review, in our opinion the accompanying schedules identified in the preceding paragraph (except as noted below) conform in all material respects with the accounting requirements of the Federal Energy Regulatory Commission as set forth in its applicable Uniform System of Accounts and published accounting releases.” The letter or report must state which, if any, of the pages above do not conform to the Commission’s requirements. Describe the discrepancies that exist.
    6. Filers are encouraged to file their Annual Report to Stockholders, and the CPA Certification Statement using eFiling. Further instructions are found on the Commission’s website at https://www.ferc.gov/ferc-online/ferc-online/frequently-asked-questions-faqs-efilingferc-online.
    7. Federal, State, and Local Governments and other authorized users may obtain additional blank copies of FERC Form 1 and 3-Q free of charge from https://www.ferc.gov/general-information-0/electric-industry-forms.
  4. When to Submit

    FERC Forms 1 and 3-Q must be filed by the following schedule:

    1. FERC Form 1 for each year ending December 31 must be filed by April 18th of the following year (18 CFR § 141.1), and
    2. FERC Form 3-Q for each calendar quarter must be filed within 60 days after the reporting quarter (18 C.F.R. § 141.400).
  5. Where to Send Comments on Public Reporting Burden.

    The public reporting burden for the FERC Form 1 collection of information is estimated to average 1,168 hours per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data-needed, and completing and reviewing the collection of information. The public reporting burden for the FERC Form 3-Q collection of information is estimated to average 168 hours per response.

    Send comments regarding these burden estimates or any aspect of these collections of information, including suggestions for reducing burden, to the Federal Energy Regulatory Commission, 888 First Street NE, Washington, DC 20426 (Attention: Information Clearance Officer); and to the Office of Information and Regulatory Affairs, Office of Management and Budget, Washington, DC 20503 (Attention: Desk Officer for the Federal Energy Regulatory Commission). No person shall be subject to any penalty if any collection of information does not display a valid control number (44 U.S.C. § 3512 (a)).

GENERAL INSTRUCTIONS

  1. Prepare this report in conformity with the Uniform System of Accounts (18 CFR Part 101) (USofA). Interpret all accounting words and phrases in accordance with the USofA.
  2. Enter in whole numbers (dollars or MWH) only, except where otherwise noted. (Enter cents for averages and figures per unit where cents are important. The truncating of cents is allowed except on the four basic financial statements where rounding is required.) The amounts shown on all supporting pages must agree with the amounts entered on the statements that they support. When applying thresholds to determine significance for reporting purposes, use for balance sheet accounts the balances at the end of the current reporting period, and use for statement of income accounts the current year's year to date amounts.
  3. Complete each question fully and accurately, even if it has been answered in a previous report. Enter the word "None" where it truly and completely states the fact.
  4. For any page(s) that is not applicable to the respondent, omit the page(s) and enter "NA," "NONE," or "Not Applicable" in column (d) on the List of Schedules, pages 2 and 3.
  5. Enter the month, day, and year for all dates. Use customary abbreviations. The "Date of Report" included in the header of each page is to be completed only for resubmissions (see VII. below).
  6. Generally, except for certain schedules, all numbers, whether they are expected to be debits or credits, must be reported as positive. Numbers having a sign that is different from the expected sign must be reported by enclosing the numbers in parentheses.
  7. For any resubmissions, please explain the reason for the resubmission in a footnote to the data field.
  8. Do not make references to reports of previous periods/years or to other reports in lieu of required entries, except as specifically authorized.
  9. Wherever (schedule) pages refer to figures from a previous period/year, the figures reported must be based upon those shown by the report of the previous period/year, or an appropriate explanation given as to why the different figures were used.
  10. Schedule specific instructions are found in the applicable taxonomy and on the applicable blank rendered form.
Definitions for statistical classifications used for completing schedules for transmission system reporting are as follows:

FNS - Firm Network Transmission Service for Self. "Firm" means service that can not be interrupted for economic reasons and is intended to remain reliable even under adverse conditions. "Network Service" is Network Transmission Service as described in Order No. 888 and the Open Access Transmission Tariff. "Self" means the respondent.

FNO - Firm Network Service for Others. "Firm" means that service cannot be interrupted for economic reasons and is intended to remain reliable even under adverse conditions. "Network Service" is Network Transmission Service as described in Order No. 888 and the Open Access Transmission Tariff.

LFP - for Long-Term Firm Point-to-Point Transmission Reservations. "Long-Term" means one year or longer and” firm" means that service cannot be interrupted for economic reasons and is intended to remain reliable even under adverse conditions. "Point-to-Point Transmission Reservations" are described in Order No. 888 and the Open Access Transmission Tariff. For all transactions identified as LFP, provide in a footnote the termination date of the contract defined as the earliest date either buyer or seller can unilaterally cancel the contract.

OLF - Other Long-Term Firm Transmission Service. Report service provided under contracts which do not conform to the terms of the Open Access Transmission Tariff. "Long-Term" means one year or longer and “firm” means that service cannot be interrupted for economic reasons and is intended to remain reliable even under adverse conditions. For all transactions identified as OLF, provide in a footnote the termination date of the contract defined as the earliest date either buyer or seller can unilaterally get out of the contract.

SFP - Short-Term Firm Point-to-Point Transmission Reservations. Use this classification for all firm point-to-point transmission reservations, where the duration of each period of reservation is less than one-year.

NF - Non-Firm Transmission Service, where firm means that service cannot be interrupted for economic reasons and is intended to remain reliable even under adverse conditions.

OS - Other Transmission Service. Use this classification only for those services which can not be placed in the above-mentioned classifications, such as all other service regardless of the length of the contract and service FERC Form. Describe the type of service in a footnote for each entry.

AD - Out-of-Period Adjustments. Use this code for any accounting adjustments or "true-ups" for service provided in prior reporting periods. Provide an explanation in a footnote for each adjustment.

DEFINITIONS
  1. Commission Authorization (Comm. Auth.) -- The authorization of the Federal Energy Regulatory Commission, or any other Commission. Name the commission whose authorization was obtained and give date of the authorization.
  2. Respondent -- The person, corporation, licensee, agency, authority, or other Legal entity or instrumentality in whose behalf the report is made.

EXCERPTS FROM THE LAW

Federal Power Act, 16 U.S.C. § 791a-825r

Sec. 3. The words defined in this section shall have the following meanings for purposes of this Act, to with:

  1. ’Corporation' means any corporation, joint-stock company, partnership, association, business trust, organized group of persons, whether incorporated or not, or a receiver or receivers, trustee or trustees of any of the foregoing. It shall not include 'municipalities, as hereinafter defined;
  2. 'Person' means an individual or a corporation;
  3. 'Licensee, means any person, State, or municipality Licensed under the provisions of section 4 of this Act, and any assignee or successor in interest thereof;
  1. 'municipality means a city, county, irrigation district, drainage district, or other political subdivision or agency of a State competent under the Laws thereof to carry and the business of developing, transmitting, unitizing, or distributing power; ......
  1. "project' means. a complete unit of improvement or development, consisting of a power house, all water conduits, all dams and appurtenant works and structures (including navigation structures) which are a part of said unit, and all storage, diverting, or fore bay reservoirs directly connected therewith, the primary line or lines transmitting power there from to the point of junction with the distribution system or with the interconnected primary transmission system, all miscellaneous structures used and useful in connection with said unit or any part thereof, and all water rights, rights-of-way, ditches, dams, reservoirs, Lands, or interest in Lands the use and occupancy of which are necessary or appropriate in the maintenance and operation of such unit;

"Sec. 4. The Commission is hereby authorized and empowered
  1. 'To make investigations and to collect and record data concerning the utilization of the water 'resources of any region to be developed, the water-power industry and its relation to other industries and to interstate or foreign commerce, and concerning the location, capacity, development costs, and relation to markets of power sites; ... to the extent the Commission may deem necessary or useful for the purposes of this Act."

"Sec. 304.
  1. Every Licensee and every public utility shall file with the Commission such annual and other periodic or special* reports as the Commission may by rules and regulations or other prescribe as necessary or appropriate to assist the Commission in the proper administration of this Act. The Commission may prescribe the manner and FERC Form in which such reports shall be made, and require from such persons specific answers to all questions upon which the Commission may need information. The Commission may require that such reports shall include, among other things, full information as to assets and Liabilities, capitalization, net investment, and reduction thereof, gross receipts, interest due and paid, depreciation, and other reserves, cost of project and other facilities, cost of maintenance and operation of the project and other facilities, cost of renewals and replacement of the project works and other facilities, depreciation, generation, transmission, distribution, delivery, use, and sale of electric energy. The Commission may require any such person to make adequate provision for currently determining such costs and other facts. Such reports shall be made under oath unless the Commission otherwise specifies*.10
"Sec. 309.
  1. The Commission shall have power to perform any and all acts, and to prescribe, issue, make, and rescind such orders, rules and regulations as it may find necessary or appropriate to carry out the provisions of this Act. Among other things, such rules and regulations may define accounting, technical, and trade terms used in this Act; and may prescribe the FERC Form or FERC Forms of all statements, declarations, applications, and reports to be filed with the Commission, the information which they shall contain, and the time within which they shall be field..."

GENERAL PENALTIES

The Commission may assess up to $1 million per day per violation of its rules and regulations. See FPA § 316(a) (2005), 16 U.S.C. § 825o(a).


FERC FORM NO.
1/3-Q

REPORT OF MAJOR ELECTRIC UTILITIES, LICENSEES AND OTHER
Identification
01 Exact Legal Name of Respondent

NorthWestern Corporation
02 Year/ Period of Report


End of:
2024
/
Q1
03 Previous Name and Date of Change (If name changed during year)

/
04 Address of Principal Office at End of Period (Street, City, State, Zip Code)

3010 West 69th Street, Sioux Falls, SD 57108
05 Name of Contact Person

Evan VerWey
06 Title of Contact Person

Manager of Financial Reporting
07 Address of Contact Person (Street, City, State, Zip Code)

3010 West 69th Street, Sioux Falls, SD 57108
08 Telephone of Contact Person, Including Area Code

(605)-978-2906
09 This Report is An Original / A Resubmission

(1)
An Original

(2)
A Resubmission
10 Date of Report (Mo, Da, Yr)

03/31/2024
Quarterly Corporate Officer Certification
The undersigned officer certifies that:

I have examined this report and to the best of my knowledge, information, and belief all statements of fact contained in this report are correct statements of the business affairs of the respondent and the financial statements, and other financial information contained in this report, conform in all material respects to the Uniform System of Accounts.

01 Name

Jeff Berzina
02 Title

Controller
03 Signature

Jeff Berzina
04 Date Signed (Mo, Da, Yr)

05/20/2024
Title 18, U.S.C. 1001 makes it a crime for any person to knowingly and willingly to make to any Agency or Department of the United States any false, fictitious or fraudulent statements as to any matter within its jurisdiction.


Name of Respondent:

NorthWestern Corporation
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

03/31/2024
Year/Period of Report

End of:
2024
/
Q1
List of Schedules

Enter in column (c) the terms "none," "not applicable," or "NA," as appropriate, where no information or amounts have been reported for certain pages. Omit pages where the respondents are "none," "not applicable," or "NA".

Line No.
Title of Schedule
(a)
Reference Page No.
(b)
Remarks
(c)
ScheduleIdentificationAbstract
Identification
1
ScheduleListOfSchedulesAbstract
List of Schedules (Electric Utility)
2
1
ScheduleImportantChangesDuringTheQuarterYearAbstract
Important Changes During the Quarter
108
2
ScheduleComparativeBalanceSheetAbstract
Comparative Balance Sheet
110
3
ScheduleStatementOfIncomeAbstract
Statement of Income for the Quarter
114
4
ScheduleRetainedEarningsAbstract
Statement of Retained Earnings for the Quarter
118
5
ScheduleStatementOfCashFlowsAbstract
Statement of Cash Flows
120
6
ScheduleNotesToFinancialStatementsAbstract
Notes to Financial Statements
122
7
ScheduleStatementOfAccumulatedOtherComprehensiveIncomeAndHedgingActivitiesAbstract
Statement of Accum Comp Income, Comp Income, and Hedging Activities
122a
8
ScheduleSummaryOfUtilityPlantAndAccumulatedProvisionsForDepreciationAmortizationAndDepletionAbstract
Summary of Utility Plant & Accumulated Provisions for Dep, Amort & Dep
200
9
ScheduleElectricPlantInServiceAndAccumulatedProvisionForDepreciationByFunctionAbstract
Electric Plant In Service and Accum Provision For Depr by Function
208
10
ScheduleTransmissionServiceAndGenerationInterconnectionStudyCostsAbstract
Transmission Service and Generation Interconnection Study Costs
231
11
ScheduleOtherRegulatoryAssetsAbstract
Other Regulatory Assets
232
12
ScheduleOtherRegulatoryLiabilitiesAbstract
Other Regulatory Liabilities
278
13
ScheduleElectricOperatingRevenuesAbstract
Elec Operating Revenues (Individual Schedule Lines 300-301)
300
14
ScheduleRegionalTransmissionServiceRevenuesAbstract
Regional Transmission Service Revenues (Account 457.1)
302
Not Applicable
15
ScheduleElectricProductionOtherPowerTransmissionRegionalExpensesAbstract
Electric Prod, Other Power Supply Exp, Trans and Distrib Exp
324
16
ScheduleElectricCustomerAccountServiceSalesAdministrativeAndGeneralExpensesAbstract
Electric Customer Accts, Service, Sales, Admin and General Expenses
325
17
ScheduleTransmissionOfElectricityForOthersAbstract
Transmission of Electricity for Others
328
18
ScheduleTransmissionOfElectricityByIsoOrRtoAbstract
Transmission of Electricity by ISO/RTOs
331
Not Applicable
19
ScheduleTransmissionOfElectricityByOthersAbstract
Transmission of Electricity by Others
332
20
ScheduleDepreciationDepletionAndAmortizationsAbstract
Deprec, Depl and Amort of Elec Plant (403,403.1,404,and 405) (except Amortization of Acquisition Adjustments)
338
21
ScheduleAmountsIncludedInIsoOrRtoSettlementAbstract
Amounts Included in ISO/RTO Settlement Statements
397
Not Applicable
22
ScheduleMonthlyPeaksAndOutputAbstract
Monthly Peak Loads and Energy Output
399
23
ScheduleMonthlyTransmissionSystemPeakLoadAbstract
Monthly Transmission System Peak Load
400
24
ScheduleMonthlyIsoOrRtoTransmissionSystemPeakLoadAbstract
Monthly ISO/RTO Transmission System Peak Load
400a
Not Applicable


Name of Respondent:

NorthWestern Corporation
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

03/31/2024
Year/Period of Report

End of:
2024
/
Q1
IMPORTANT CHANGES DURING THE QUARTER/YEAR

Give particulars (details) concerning the matters indicated below. Make the statements explicit and precise, and number them in accordance with the inquiries. Each inquiry should be answered. Enter "none," "not applicable," or "NA" where applicable. If information which answers an inquiry is given elsewhere in the report, make a reference to the schedule in which it appears.

  1. Changes in and important additions to franchise rights: Describe the actual consideration given therefore and state from whom the franchise rights were acquired. If acquired without the payment of consideration, state that fact.
  2. Acquisition of ownership in other companies by reorganization, merger, or consolidation with other companies: Give names of companies involved, particulars concerning the transactions, name of the Commission authorizing the transaction, and reference to Commission authorization.
  3. Purchase or sale of an operating unit or system: Give a brief description of the property, and of the transactions relating thereto, and reference to Commission authorization, if any was required. Give date journal entries called for by the Uniform System of Accounts were submitted to the Commission.
  4. Important leaseholds (other than leaseholds for natural gas lands) that have been acquired or given, assigned or surrendered: Give effective dates, lengths of terms, names of parties, rents, and other condition. State name of Commission authorizing lease and give reference to such authorization.
  5. Important extension or reduction of transmission or distribution system: State territory added or relinquished and date operations began or ceased and give reference to Commission authorization, if any was required. State also the approximate number of customers added or lost and approximate annual revenues of each class of service. Each natural gas company must also state major new continuing sources of gas made available to it from purchases, development, purchase contract or otherwise, giving location and approximate total gas volumes available, period of contracts, and other parties to any such arrangements, etc.
  6. Obligations incurred as a result of issuance of securities or assumption of liabilities or guarantees including issuance of short-term debt and commercial paper having a maturity of one year or less. Give reference to FERC or State Commission authorization, as appropriate, and the amount of obligation or guarantee.
  7. Changes in articles of incorporation or amendments to charter: Explain the nature and purpose of such changes or amendments.
  8. State the estimated annual effect and nature of any important wage scale changes during the year.
  9. State briefly the status of any materially important legal proceedings pending at the end of the year, and the results of any such proceedings culminated during the year.
  10. Describe briefly any materially important transactions of the respondent not disclosed elsewhere in this report in which an officer, director, security holder reported on Pages 104 or 105 of the Annual Report Form No. 1, voting trustee, associated company or known associate of any of these persons was a party or in which any such person had a material interest.
  11. (Reserved.)
  12. If the important changes during the year relating to the respondent company appearing in the annual report to stockholders are applicable in every respect and furnish the data required by Instructions 1 to 11 above, such notes may be included on this page.
  13. Describe fully any changes in officers, directors, major security holders and voting powers of the respondent that may have occurred during the reporting period.
  14. In the event that the respondent participates in a cash management program(s) and its proprietary capital ratio is less than 30 percent please describe the significant events or transactions causing the proprietary capital ratio to be less than 30 percent, and the extent to which the respondent has amounts loaned or money advanced to its parent, subsidiary, or affiliated companies through a cash management program(s). Additionally, please describe plans, if any to regain at least a 30 percent proprietary ratio.

None

On January 1, 2024, we completed the second and final phase of the holding company reorganization. NorthWestern Corporation contributed the assets and liabilities of its South Dakota and Nebraska regulated utilities to NorthWestern Energy Public Service Corporation, and then distributed its equity interest in NorthWestern Energy Public Service Corporation and certain other subsidiaries to NorthWestern Energy Group, Inc., resulting in NorthWestern Corporation owning and operating the Montana regulated utility and NorthWestern Energy Public Service Corporation owning and operating the Nebraska and South Dakota utilities, each as a direct subsidiary of NorthWestern Energy Group, Inc.

None

None

None

See Note 5 "Financing Activities." Debt Issuance: FERC Order ES24-10-000

None

None

See Note 8 "Commitments and Contingencies."

None

None

None

None


Name of Respondent:

NorthWestern Corporation
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

03/31/2024
Year/Period of Report

End of:
2024
/
Q1
COMPARATIVE BALANCE SHEET (ASSETS AND OTHER DEBITS)
Line No.
Title of Account
(a)
Ref. Page No.
(b)
Current Year End of Quarter/Year Balance
(c)
Prior Year End Balance 12/31
(d)
1
UtilityPlantAbstract
UTILITY PLANT
2
UtilityPlant
Utility Plant (101-106, 114)
200
6,523,106,969
7,983,112,655
3
ConstructionWorkInProgress
Construction Work in Progress (107)
200
391,191,777
358,401,452
4
UtilityPlantAndConstructionWorkInProgress
TOTAL Utility Plant (Enter Total of lines 2 and 3)
6,914,298,746
8,341,514,107
5
AccumulatedProvisionForDepreciationAmortizationAndDepletionOfPlantUtility
(Less) Accum. Prov. for Depr. Amort. Depl. (108, 110, 111, 115)
200
2,375,926,960
2,874,902,417
6
UtilityPlantNet
Net Utility Plant (Enter Total of line 4 less 5)
4,538,371,786
5,466,611,690
7
NuclearFuelInProcessOfRefinementConversionEnrichmentAndFabrication
Nuclear Fuel in Process of Ref., Conv., Enrich., and Fab. (120.1)
202
8
NuclearFuelMaterialsAndAssembliesStockAccountMajorOnly
Nuclear Fuel Materials and Assemblies-Stock Account (120.2)
9
NuclearFuelAssembliesInReactorMajorOnly
Nuclear Fuel Assemblies in Reactor (120.3)
10
SpentNuclearFuelMajorOnly
Spent Nuclear Fuel (120.4)
11
NuclearFuelUnderCapitalLeases
Nuclear Fuel Under Capital Leases (120.6)
12
AccumulatedProvisionForAmortizationOfNuclearFuelAssemblies
(Less) Accum. Prov. for Amort. of Nucl. Fuel Assemblies (120.5)
202
13
NuclearFuelNet
Net Nuclear Fuel (Enter Total of lines 7-11 less 12)
14
UtilityPlantAndNuclearFuelNet
Net Utility Plant (Enter Total of lines 6 and 13)
4,538,371,786
5,466,611,690
15
OtherElectricPlantAdjustments
Utility Plant Adjustments (116)
263,806,234
357,585,527
16
GasStoredUndergroundNoncurrent
Gas Stored Underground - Noncurrent (117)
36,210,774
36,212,426
17
OtherPropertyAndInvestmentsAbstract
OTHER PROPERTY AND INVESTMENTS
18
NonutilityProperty
Nonutility Property (121)
686,805
686,805
19
AccumulatedProvisionForDepreciationAndAmortizationOfNonutilityProperty
(Less) Accum. Prov. for Depr. and Amort. (122)
67,635
67,635
20
InvestmentInAssociatedCompanies
Investments in Associated Companies (123)
21
InvestmentInSubsidiaryCompanies
Investment in Subsidiary Companies (123.1)
224
18,095,045
33,374,273
23
NoncurrentPortionOfAllowances
Noncurrent Portion of Allowances
228
24
OtherInvestments
Other Investments (124)
14,413,084
13,050,811
25
SinkingFunds
Sinking Funds (125)
26
DepreciationFund
Depreciation Fund (126)
27
AmortizationFundFederal
Amortization Fund - Federal (127)
28
OtherSpecialFunds
Other Special Funds (128)
29
SpecialFunds
Special Funds (Non Major Only) (129)
30
DerivativeInstrumentAssetsLongTerm
Long-Term Portion of Derivative Assets (175)
31
DerivativeInstrumentAssetsHedgesLongTerm
Long-Term Portion of Derivative Assets - Hedges (176)
32
OtherPropertyAndInvestments
TOTAL Other Property and Investments (Lines 18-21 and 23-31)
33,127,299
47,044,254
33
CurrentAndAccruedAssetsAbstract
CURRENT AND ACCRUED ASSETS
34
CashAndWorkingFunds
Cash and Working Funds (Non-major Only) (130)
35
Cash
Cash (131)
51,897
8,740,865
36
SpecialDeposits
Special Deposits (132-134)
15,055,581
14,856,653
37
WorkingFunds
Working Fund (135)
17,500
22,850
38
TemporaryCashInvestments
Temporary Cash Investments (136)
39
NotesReceivable
Notes Receivable (141)
40
CustomerAccountsReceivable
Customer Accounts Receivable (142)
76,928,613
91,004,512
41
OtherAccountsReceivable
Other Accounts Receivable (143)
11,401,985
17,049,224
42
AccumulatedProvisionForUncollectibleAccountsCredit
(Less) Accum. Prov. for Uncollectible Acct.-Credit (144)
2,546,238
2,813,091
43
NotesReceivableFromAssociatedCompanies
Notes Receivable from Associated Companies (145)
44
AccountsReceivableFromAssociatedCompanies
Accounts Receivable from Assoc. Companies (146)
4,158,034
615,046
45
FuelStock
Fuel Stock (151)
227
2,010,604
9,710,818
46
FuelStockExpensesUndistributed
Fuel Stock Expenses Undistributed (152)
227
47
Residuals
Residuals (Elec) and Extracted Products (153)
227
48
PlantMaterialsAndOperatingSupplies
Plant Materials and Operating Supplies (154)
227
70,935,075
85,254,493
49
Merchandise
Merchandise (155)
227
50
OtherMaterialsAndSupplies
Other Materials and Supplies (156)
227
51
NuclearMaterialsHeldForSale
Nuclear Materials Held for Sale (157)
202/227
52
AllowanceInventoryAndWithheld
Allowances (158.1 and 158.2)
228
53
NoncurrentPortionOfAllowances
(Less) Noncurrent Portion of Allowances
228
54
StoresExpenseUndistributed
Stores Expense Undistributed (163)
227
22,748
55
GasStoredCurrent
Gas Stored Underground - Current (164.1)
509,265
18,814,211
56
LiquefiedNaturalGasStoredAndHeldForProcessing
Liquefied Natural Gas Stored and Held for Processing (164.2-164.3)
57
Prepayments
Prepayments (165)
9,823,874
21,740,289
58
AdvancesForGas
Advances for Gas (166-167)
59
InterestAndDividendsReceivable
Interest and Dividends Receivable (171)
60
RentsReceivable
Rents Receivable (172)
342,889
73,787
61
AccruedUtilityRevenues
Accrued Utility Revenues (173)
67,739,163
105,109,956
62
MiscellaneousCurrentAndAccruedAssets
Miscellaneous Current and Accrued Assets (174)
831,664
876,036
63
DerivativeInstrumentAssets
Derivative Instrument Assets (175)
64
DerivativeInstrumentAssetsLongTerm
(Less) Long-Term Portion of Derivative Instrument Assets (175)
65
DerivativeInstrumentAssetsHedges
Derivative Instrument Assets - Hedges (176)
66
DerivativeInstrumentAssetsHedgesLongTerm
(Less) Long-Term Portion of Derivative Instrument Assets - Hedges (176)
67
CurrentAndAccruedAssets
Total Current and Accrued Assets (Lines 34 through 66)
257,237,158
371,055,649
68
DeferredDebitsAbstract
DEFERRED DEBITS
69
UnamortizedDebtExpense
Unamortized Debt Expenses (181)
10,088,396
11,096,631
70
ExtraordinaryPropertyLosses
Extraordinary Property Losses (182.1)
230a
71
UnrecoveredPlantAndRegulatoryStudyCosts
Unrecovered Plant and Regulatory Study Costs (182.2)
230b
72
OtherRegulatoryAssets
Other Regulatory Assets (182.3)
232
652,922,030
746,025,553
73
PreliminarySurveyAndInvestigationCharges
Prelim. Survey and Investigation Charges (Electric) (183)
0
376,264
74
PreliminaryNaturalGasSurveyAndInvestigationChargesAndOtherPreliminarySurveyAndInvestigationCharges
Preliminary Natural Gas Survey and Investigation Charges 183.1)
75
OtherPreliminarySurveyAndInvestigationCharges
Other Preliminary Survey and Investigation Charges (183.2)
76
ClearingAccounts
Clearing Accounts (184)
279,034
2,522
77
TemporaryFacilities
Temporary Facilities (185)
78
MiscellaneousDeferredDebits
Miscellaneous Deferred Debits (186)
233
1,224,411
11,084,645
79
DeferredLossesFromDispositionOfUtilityPlant
Def. Losses from Disposition of Utility Plt. (187)
80
ResearchDevelopmentAndDemonstrationExpenditures
Research, Devel. and Demonstration Expend. (188)
352
81
UnamortizedLossOnReacquiredDebt
Unamortized Loss on Reaquired Debt (189)
18,144,010
20,027,942
82
AccumulatedDeferredIncomeTaxes
Accumulated Deferred Income Taxes (190)
234
190,056,402
289,883,014
83
UnrecoveredPurchasedGasCosts
Unrecovered Purchased Gas Costs (191)
30,299,534
3,394,843
84
DeferredDebits
Total Deferred Debits (lines 69 through 83)
902,455,749
1,081,886,370
85
AssetsAndOtherDebits
TOTAL ASSETS (lines 14-16, 32, 67, and 84)
6,031,209,000
7,360,395,916


Name of Respondent:

NorthWestern Corporation
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

03/31/2024
Year/Period of Report

End of:
2024
/
Q1
COMPARATIVE BALANCE SHEET (LIABILITIES AND OTHER CREDITS)
Line No.
Title of Account
(a)
Ref. Page No.
(b)
Current Year End of Quarter/Year Balance
(c)
Prior Year End Balance 12/31
(d)
1
ProprietaryCapitalAbstract
PROPRIETARY CAPITAL
2
CommonStockIssued
Common Stock Issued (201)
250
1
1
3
PreferredStockIssued
Preferred Stock Issued (204)
250
4
CapitalStockSubscribed
Capital Stock Subscribed (202, 205)
5
StockLiabilityForConversion
Stock Liability for Conversion (203, 206)
6
PremiumOnCapitalStock
Premium on Capital Stock (207)
7
OtherPaidInCapital
Other Paid-In Capital (208-211)
253
1,982,321,118
1,981,122,791
8
InstallmentsReceivedOnCapitalStock
Installments Received on Capital Stock (212)
252
9
DiscountOnCapitalStock
(Less) Discount on Capital Stock (213)
254
10
CapitalStockExpense
(Less) Capital Stock Expense (214)
254b
11
RetainedEarnings
Retained Earnings (215, 215.1, 216)
118
301,375,137
810,816,636
12
UnappropriatedUndistributedSubsidiaryEarnings
Unappropriated Undistributed Subsidiary Earnings (216.1)
118
1,605,086
1,503,684
13
ReacquiredCapitalStock
(Less) Reacquired Capital Stock (217)
250
14
NoncorporateProprietorship
Noncorporate Proprietorship (Non-major only) (218)
15
AccumulatedOtherComprehensiveIncome
Accumulated Other Comprehensive Income (219)
122(a)(b)
5,719,493
5,513,000
16
ProprietaryCapital
Total Proprietary Capital (lines 2 through 15)
2,276,371,677
2,784,922,744
17
LongTermDebtAbstract
LONG-TERM DEBT
18
Bonds
Bonds (221)
256
2,074,660,000
2,479,660,000
19
ReacquiredBonds
(Less) Reacquired Bonds (222)
256
20
AdvancesFromAssociatedCompanies
Advances from Associated Companies (223)
256
21
OtherLongTermDebt
Other Long-Term Debt (224)
256
135,000,000
318,000,000
22
UnamortizedPremiumOnLongTermDebt
Unamortized Premium on Long-Term Debt (225)
23
UnamortizedDiscountOnLongTermDebtDebit
(Less) Unamortized Discount on Long-Term Debt-Debit (226)
6,538
24
LongTermDebt
Total Long-Term Debt (lines 18 through 23)
2,209,660,000
2,797,653,462
25
OtherNoncurrentLiabilitiesAbstract
OTHER NONCURRENT LIABILITIES
26
ObligationsUnderCapitalLeaseNoncurrent
Obligations Under Capital Leases - Noncurrent (227)
5,010,813
5,996,448
27
AccumulatedProvisionForPropertyInsurance
Accumulated Provision for Property Insurance (228.1)
28
AccumulatedProvisionForInjuriesAndDamages
Accumulated Provision for Injuries and Damages (228.2)
7,324,759
6,745,658
29
AccumulatedProvisionForPensionsAndBenefits
Accumulated Provision for Pensions and Benefits (228.3)
895,486
4,631,028
30
AccumulatedMiscellaneousOperatingProvisions
Accumulated Miscellaneous Operating Provisions (228.4)
31,135,030
50,272,082
31
AccumulatedProvisionForRateRefunds
Accumulated Provision for Rate Refunds (229)
32
LongTermPortionOfDerivativeInstrumentLiabilities
Long-Term Portion of Derivative Instrument Liabilities
33
LongTermPortionOfDerivativeInstrumentLiabilitiesHedges
Long-Term Portion of Derivative Instrument Liabilities - Hedges
34
AssetRetirementObligations
Asset Retirement Obligations (230)
35,033,927
41,424,213
35
OtherNoncurrentLiabilities
Total Other Noncurrent Liabilities (lines 26 through 34)
79,400,015
109,069,429
36
CurrentAndAccruedLiabilitiesAbstract
CURRENT AND ACCRUED LIABILITIES
37
NotesPayable
Notes Payable (231)
38
AccountsPayable
Accounts Payable (232)
84,300,050
131,709,370
39
NotesPayableToAssociatedCompanies
Notes Payable to Associated Companies (233)
40
AccountsPayableToAssociatedCompanies
Accounts Payable to Associated Companies (234)
2,928,940
4,804,188
41
CustomerDeposits
Customer Deposits (235)
11,970,115
11,954,099
42
TaxesAccrued
Taxes Accrued (236)
262
120,562,924
75,992,477
43
InterestAccrued
Interest Accrued (237)
30,837,556
24,775,303
44
DividendsDeclared
Dividends Declared (238)
45
MaturedLongTermDebt
Matured Long-Term Debt (239)
46
MaturedInterest
Matured Interest (240)
47
TaxCollectionsPayable
Tax Collections Payable (241)
274,653
1,789,013
48
MiscellaneousCurrentAndAccruedLiabilities
Miscellaneous Current and Accrued Liabilities (242)
50,160,087
73,408,287
49
ObligationsUnderCapitalLeasesCurrent
Obligations Under Capital Leases-Current (243)
3,665,778
3,720,377
50
DerivativesInstrumentLiabilities
Derivative Instrument Liabilities (244)
51
LongTermPortionOfDerivativeInstrumentLiabilities
(Less) Long-Term Portion of Derivative Instrument Liabilities
52
DerivativeInstrumentLiabilitiesHedges
Derivative Instrument Liabilities - Hedges (245)
53
LongTermPortionOfDerivativeInstrumentLiabilitiesHedges
(Less) Long-Term Portion of Derivative Instrument Liabilities-Hedges
54
CurrentAndAccruedLiabilities
Total Current and Accrued Liabilities (lines 37 through 53)
304,700,103
328,153,114
55
DeferredCreditsAbstract
DEFERRED CREDITS
56
CustomerAdvancesForConstruction
Customer Advances for Construction (252)
110,720,223
107,470,505
57
AccumulatedDeferredInvestmentTaxCredits
Accumulated Deferred Investment Tax Credits (255)
266
217,069
258,964
58
DeferredGainsFromDispositionOfUtilityPlant
Deferred Gains from Disposition of Utility Plant (256)
59
OtherDeferredCredits
Other Deferred Credits (253)
269
112,725,808
147,334,417
60
OtherRegulatoryLiabilities
Other Regulatory Liabilities (254)
278
143,207,442
190,647,029
61
UnamortizedGainOnReacquiredDebt
Unamortized Gain on Reacquired Debt (257)
62
AccumulatedDeferredIncomeTaxesAcceleratedAmortizationProperty
Accum. Deferred Income Taxes-Accel. Amort.(281)
272
63
AccumulatedDeferredIncomeTaxesOtherProperty
Accum. Deferred Income Taxes-Other Property (282)
563,330,551
663,637,584
64
AccumulatedDeferredIncomeTaxesOther
Accum. Deferred Income Taxes-Other (283)
230,876,112
231,248,668
65
DeferredCredits
Total Deferred Credits (lines 56 through 64)
1,161,077,205
1,340,597,167
66
LiabilitiesAndOtherCredits
TOTAL LIABILITIES AND STOCKHOLDER EQUITY (lines 16, 24, 35, 54 and 65)
6,031,209,000
7,360,395,916


Name of Respondent:

NorthWestern Corporation
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

03/31/2024
Year/Period of Report

End of:
2024
/
Q1
STATEMENT OF INCOME

Quarterly

  1. Report in column (c) the current year to date balance. Column (c) equals the total of adding the data in column (g) plus the data in column (i) plus the data in column (k). Report in column (d) similar data for the previous year. This information is reported in the annual filing only.
  2. Enter in column (e) the balance for the reporting quarter and in column (f) the balance for the same three month period for the prior year.
  3. Report in column (g) the quarter to date amounts for electric utility function; in column (i) the quarter to date amounts for gas utility, and in column (k) the quarter to date amounts for other utility function for the current year quarter.
  4. Report in column (h) the quarter to date amounts for electric utility function; in column (j) the quarter to date amounts for gas utility, and in column (l) the quarter to date amounts for other utility function for the prior year quarter.
  5. If additional columns are needed, place them in a footnote.

Annual or Quarterly if applicable

  1. Do not report fourth quarter data in columns (e) and (f)
  2. Report amounts for accounts 412 and 413, Revenues and Expenses from Utility Plant Leased to Others, in another utility column in a similar manner to a utility department. Spread the amount(s) over Lines 2 thru 26 as appropriate. Include these amounts in columns (c) and (d) totals.
  3. Report amounts in account 414, Other Utility Operating Income, in the same manner as accounts 412 and 413 above.
  4. Use page 122 for important notes regarding the statement of income for any account thereof.
  5. Give concise explanations concerning unsettled rate proceedings where a contingency exists such that refunds of a material amount may need to be made to the utility's customers or which may result in material refund to the utility with respect to power or gas purchases. State for each year effected the gross revenues or costs to which the contingency relates and the tax effects together with an explanation of the major factors which affect the rights of the utility to retain such revenues or recover amounts paid with respect to power or gas purchases.
  6. Give concise explanations concerning significant amounts of any refunds made or received during the year resulting from settlement of any rate proceeding affecting revenues received or costs incurred for power or gas purchases, and a summary of the adjustments made to balance sheet, income, and expense accounts.
  7. If any notes appearing in the report to stockholders are applicable to the Statement of Income, such notes may be included at page 122.
  8. Enter on page 122 a concise explanation of only those changes in accounting methods made during the year which had an effect on net income, including the basis of allocations and apportionments from those used in the preceding year. Also, give the appropriate dollar effect of such changes.
  9. Explain in a footnote if the previous year's/quarter's figures are different from that reported in prior reports.
  10. If the columns are insufficient for reporting additional utility departments, supply the appropriate account titles report the information in a footnote to this schedule.
Line No.
Title of Account
(a)
(Ref.) Page No.
(b)
Total Current Year to Date Balance for Quarter/Year
(c)
Total Prior Year to Date Balance for Quarter/Year
(d)
Current 3 Months Ended - Quarterly Only - No 4th Quarter
(e)
Prior 3 Months Ended - Quarterly Only - No 4th Quarter
(f)
Electric Utility Current Year to Date (in dollars)
(g)
Electric Utility Previous Year to Date (in dollars)
(h)
Gas Utiity Current Year to Date (in dollars)
(i)
Gas Utility Previous Year to Date (in dollars)
(j)
Other Utility Current Year to Date (in dollars)
(k)
Other Utility Previous Year to Date (in dollars)
(l)
1
UtilityOperatingIncomeAbstract
UTILITY OPERATING INCOME
2
OperatingRevenues
Operating Revenues (400)
300
361,411,191
547,520,222
361,411,191
547,520,222
278,062,875
362,975,985
82,839,364
183,964,977
508,952
579,260
3
OperatingExpensesAbstract
Operating Expenses
4
OperationExpense
Operation Expenses (401)
320
180,090,606
320,005,382
180,090,606
320,005,382
141,852,665
194,904,399
37,820,489
124,621,209
417,452
479,774
5
MaintenanceExpense
Maintenance Expenses (402)
320
10,306,033
13,988,218
10,306,033
13,988,218
8,210,461
11,702,874
2,095,253
2,285,214
319
131
6
DepreciationExpense
Depreciation Expense (403)
336
37,020,106
45,609,438
37,020,106
45,609,438
31,294,513
37,721,229
5,714,071
7,877,984
11,522
10,225
7
DepreciationExpenseForAssetRetirementCosts
Depreciation Expense for Asset Retirement Costs (403.1)
336
0
0
0
0
0
8
AmortizationAndDepletionOfUtilityPlant
Amort. & Depl. of Utility Plant (404-405)
336
3,976,575
3,952,956
3,976,575
3,952,956
2,194,533
2,390,986
1,782,042
1,561,970
9
AmortizationOfElectricPlantAcquisitionAdjustments
Amort. of Utility Plant Acq. Adj. (406)
336
3,686,971
3,775,443
3,686,971
3,775,443
3,686,971
3,987,069
211,626
10
AmortizationOfPropertyLossesUnrecoveredPlantAndRegulatoryStudyCosts
Amort. Property Losses, Unrecov Plant and Regulatory Study Costs (407)
11
AmortizationOfConversionExpenses
Amort. of Conversion Expenses (407.2)
12
RegulatoryDebits
Regulatory Debits (407.3)
5,240,597
30,302,427
5,240,597
30,302,427
3,051,582
12,842,007
2,189,015
17,460,420
13
RegulatoryCredits
(Less) Regulatory Credits (407.4)
17,068,234
18,666,653
17,068,234
18,666,653
13,958,860
8,834,376
3,109,374
9,832,277
14
TaxesOtherThanIncomeTaxesUtilityOperatingIncome
Taxes Other Than Income Taxes (408.1)
262
47,075,571
51,157,618
47,075,571
51,157,618
36,247,169
39,721,500
10,814,304
11,418,629
14,098
17,489
15
IncomeTaxesOperatingIncome
Income Taxes - Federal (409.1)
262
12,226
7,287,530
12,226
7,287,530
1,920,801
1,953,650
1,893,830
9,224,748
14,745
16,433
16
IncomeTaxesUtilityOperatingIncomeOther
Income Taxes - Other (409.1)
262
238,150
9,362,034
238,150
9,362,034
993,885
6,458,902
1,226,952
2,897,467
5,083
5,664
17
ProvisionsForDeferredIncomeTaxesUtilityOperatingIncome
Provision for Deferred Income Taxes (410.1)
234, 272
32,453,813
26,854,623
32,453,813
26,854,623
25,315,715
24,805,936
7,140,320
2,051,722
2,222
3,036
18
ProvisionForDeferredIncomeTaxesCreditOperatingIncome
(Less) Provision for Deferred Income Taxes-Cr. (411.1)
234, 272
23,011,982
36,959,334
23,011,982
36,959,334
17,086,415
25,833,659
5,925,567
11,125,675
19
InvestmentTaxCreditAdjustments
Investment Tax Credit Adj. - Net (411.4)
266
41,896
40,117
41,896
40,117
41,896
40,117
20
GainsFromDispositionOfPlant
(Less) Gains from Disp. of Utility Plant (411.6)
21
LossesFromDispositionOfServiceCompanyPlant
Losses from Disp. of Utility Plant (411.7)
22
GainsFromDispositionOfAllowances
(Less) Gains from Disposition of Allowances (411.8)
23
LossesFromDispositionOfAllowances
Losses from Disposition of Allowances (411.9)
24
AccretionExpense
Accretion Expense (411.10)
25
UtilityOperatingExpenses
TOTAL Utility Operating Expenses (Enter Total of lines 4 thru 24)
279,954,084
456,629,565
279,954,084
456,629,565
217,851,752
297,873,100
61,641,335
158,229,785
460,997
526,680
27
NetUtilityOperatingIncome
Net Util Oper Inc (Enter Tot line 2 less 25)
81,457,107
90,890,657
81,457,107
90,890,657
60,211,123
65,102,885
21,198,029
25,735,192
47,955
52,580
28
OtherIncomeAndDeductionsAbstract
Other Income and Deductions
29
OtherIncomeAbstract
Other Income
30
NonutilityOperatingIncomeAbstract
Nonutilty Operating Income
31
RevenuesFromMerchandisingJobbingAndContractWork
Revenues From Merchandising, Jobbing and Contract Work (415)
117,060
153,311
117,060
153,311
32
CostsAndExpensesOfMerchandisingJobbingAndContractWork
(Less) Costs and Exp. of Merchandising, Job. & Contract Work (416)
177,252
34,735
177,252
34,735
33
RevenuesFromNonutilityOperations
Revenues From Nonutility Operations (417)
114,656
20,360
114,656
20,360
34
ExpensesOfNonutilityOperations
(Less) Expenses of Nonutility Operations (417.1)
55,045
130,057
55,045
130,057
35
NonoperatingRentalIncome
Nonoperating Rental Income (418)
36
EquityInEarningsOfSubsidiaryCompanies
Equity in Earnings of Subsidiary Companies (418.1)
119
247,931
110,323
247,931
110,323
37
InterestAndDividendIncome
Interest and Dividend Income (419)
8
181,012
8
181,012
38
AllowanceForOtherFundsUsedDuringConstruction
Allowance for Other Funds Used During Construction (419.1)
4,100,009
3,714,472
4,100,009
3,714,472
39
MiscellaneousNonoperatingIncome
Miscellaneous Nonoperating Income (421)
76,378
50,208
76,378
50,208
40
GainOnDispositionOfProperty
Gain on Disposition of Property (421.1)
41
OtherIncome
TOTAL Other Income (Enter Total of lines 31 thru 40)
3,927,883
3,743,832
3,927,883
3,743,832
42
OtherIncomeDeductionsAbstract
Other Income Deductions
43
LossOnDispositionOfProperty
Loss on Disposition of Property (421.2)
44
MiscellaneousAmortization
Miscellaneous Amortization (425)
45
Donations
Donations (426.1)
311,051
290,970
311,051
290,970
46
LifeInsurance
Life Insurance (426.2)
47
Penalties
Penalties (426.3)
2,269,800
116
2,269,800
116
48
ExpendituresForCertainCivicPoliticalAndRelatedActivities
Exp. for Certain Civic, Political & Related Activities (426.4)
92,870
194,510
92,870
194,510
49
OtherDeductions
Other Deductions (426.5)
72,426
34,124
72,426
34,124
50
OtherIncomeDeductions
TOTAL Other Income Deductions (Total of lines 43 thru 49)
1,793,453
451,472
1,793,453
451,472
51
TaxesApplicableToOtherIncomeAndDeductionsAbstract
Taxes Applic. to Other Income and Deductions
52
TaxesOtherThanIncomeTaxesOtherIncomeAndDeductions
Taxes Other Than Income Taxes (408.2)
262
546
732
546
732
53
IncomeTaxesFederal
Income Taxes-Federal (409.2)
262
1,380,688
3,821,722
1,380,688
3,821,722
54
IncomeTaxesOther
Income Taxes-Other (409.2)
262
270,359
148,637
270,359
148,637
55
ProvisionForDeferredIncomeTaxesOtherIncomeAndDeductions
Provision for Deferred Inc. Taxes (410.2)
234, 272
803
427,573
803
427,573
56
ProvisionForDeferredIncomeTaxesCreditOtherIncomeAndDeductions
(Less) Provision for Deferred Income Taxes-Cr. (411.2)
234, 272
435
702,077
435
702,077
57
InvestmentTaxCreditAdjustmentsNonutilityOperations
Investment Tax Credit Adj.-Net (411.5)
58
InvestmentTaxCredits
(Less) Investment Tax Credits (420)
59
TaxesOnOtherIncomeAndDeductions
TOTAL Taxes on Other Income and Deductions (Total of lines 52-58)
1,651,961
3,399,313
1,651,961
3,399,313
60
NetOtherIncomeAndDeductions
Net Other Income and Deductions (Total of lines 41, 50, 59)
4,069,375
106,953
4,069,375
106,953
61
InterestChargesAbstract
Interest Charges
62
InterestOnLongTermDebt
Interest on Long-Term Debt (427)
24,835,396
26,990,006
24,835,396
26,990,006
63
AmortizationOfDebtDiscountAndExpense
Amort. of Debt Disc. and Expense (428)
329,326
491,476
329,326
491,476
64
AmortizationOfLossOnReacquiredDebt
Amortization of Loss on Reaquired Debt (428.1)
391,755
703,600
391,755
703,600
65
AmortizationOfPremiumOnDebtCredit
(Less) Amort. of Premium on Debt-Credit (429)
66
AmortizationOfGainOnReacquiredDebtCredit
(Less) Amortization of Gain on Reaquired Debt-Credit (429.1)
67
InterestOnDebtToAssociatedCompanies
Interest on Debt to Assoc. Companies (430)
68
OtherInterestExpense
Other Interest Expense (431)
987,135
1,480,084
987,135
1,480,084
69
AllowanceForBorrowedFundsUsedDuringConstructionCredit
(Less) Allowance for Borrowed Funds Used During Construction-Cr. (432)
1,853,146
1,412,014
1,853,146
1,412,014
70
NetInterestCharges
Net Interest Charges (Total of lines 62 thru 69)
24,690,466
28,253,152
24,690,466
28,253,152
71
IncomeBeforeExtraordinaryItems
Income Before Extraordinary Items (Total of lines 27, 60 and 70)
60,836,016
62,530,552
60,836,016
62,530,552
72
ExtraordinaryItemsAbstract
Extraordinary Items
73
ExtraordinaryIncome
Extraordinary Income (434)
74
ExtraordinaryDeductions
(Less) Extraordinary Deductions (435)
75
NetExtraordinaryItems
Net Extraordinary Items (Total of line 73 less line 74)
76
IncomeTaxesExtraordinaryItems
Income Taxes-Federal and Other (409.3)
262
77
ExtraordinaryItemsAfterTaxes
Extraordinary Items After Taxes (line 75 less line 76)
78
NetIncomeLoss
Net Income (Total of line 71 and 77)
60,836,016
62,530,552
60,836,016
62,530,552


Name of Respondent:

NorthWestern Corporation
This report is:

(1)