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2026 Informational Electric and Natural Gas Filings
2026 Info EL1 - Comments of the South Dakota Public Utilities Commission in FERC Docket ER26-1138-000
Date Filed: 02/13/26
2026 Info EL2 - NorthWestern Energy Public Service Corporation's Notice of Form No. 1 Annual Update
Annual Update (excel format)
Date Filed: 03/05/26
2026 Info EL3 - Basin Electric Power Cooperative - Rapid City Landfill 230-kV Transmission Line Reroute Project Project Notification Letter and Review Request
Date Filed: 03/11/26
2026 Info EL4 - In the Matter of Otter Tail Power Company’s Advanced Metering Infrastructure (AMI) Planned Enhancements to its Customers Communication and Disconnection Notification Process Informational Filing
Date Filed: 04/07/26
2026 Info EL5 - NorthWestern Energy Public Service Corporation, Docket No. ER26-___-000 Rate Schedule No. 44 - First Amendment to the Engineering, Procurement and Construction Agreement by and between East River Electric Power Cooperative, Inc. and NorthWestern Energy Public Service Corporation dba NorthWestern Energy
Date Filed: 04/14/26
2026 Info EL6 - Transfer of service territory between Watertown Municipal Utilities and NorthWestern Energy as well as Watertown Municipal Utilities and Codington-Clark Electric Cooperative, Inc. due to the annexation of the Boerger Second Addition (Resolution No. 25-36) in Watertown, SD
Date Filed: 04/23/26
2026 Info EL7 – PUC Staff’s Aircraft Detection Lighting System Performance Presentation
Date Filed: 05/08/26
2026 Info EL8 – Basin Electric Power Cooperative's Notification of Intent to Exercise Right of First Refusal - Laramie River Station to New Underwood 345 kV Transmission Project
Date Filed: 05/08/26
2026 Info EL9 - FERC’s Order Authorizing Merger and Disposition of Jurisdictional Facilities and Acquisition of Securities of Black Hills Corporation and NorthWestern Energy Group, Inc., Docket No. EC26-44-000
Date Filed: 06/02/26
2026 Info EL10 - FERC’s Order Granting Waiver Request for Campbell County Wind Farm 2, LLC, Docket No. ER26-1996-000
Date Filed: 06/11/26
2026 Info EL11 - MidAmerican Energy Company's 18 CFR 292.302 - Avoided Cost Compliance Filing
Avoided Cost Compliance Filing Confidential (not available to the public)
Date Filed: 06/29/26
2026 Info EL12 - Basin Electric Power Cooperative's Restoration Plan for Transmission Lines Impacted by June 29, 2026 Storm
Date Filed: 07/07/26
2026 Info EL13 - FERC Notice of Effectiveness of Exempt Wholesale Generator and Foreign Utility Company Status - Grant Solar LLC
Date Filed: 07/07/26
