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 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 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

2026 Info EL14 - Modification 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 Harmony Hill Annexation Second Addition (Resolution No. 25-36) in Watertown, SD
Date Filed: 07/31/26

2026 Info EL15 - Agreement to Transfer Service Territory between Clay Union Electric Corporation and City of Vermillion due to Annexation of Munger Tract 1, Munger Tract 2, and Munger Tract 3 in Section 11, Township 92 North, Range 52 West
Date Filed: 09/25/26

2026 Info EL16 - Agreement to Transfer Service Territory between Clay Union Electric Corporation and City of Vermillion due to Annexation of Tract 1, Bluestem Trail Addition in Section 17, Township 92 North, Range 51 West
Date Filed: 09/25/26

2026 Info EL17 - Construction Management Agreement for the Big Stone South to Alexandria Transmission Project Docket No. ER27-(__)-000
Date Filed: 10/07/26

2026 Info EL18 - Operation and Maintenance Agreement for the Big Stone South to Alexandria Transmission Project Docket No. ER27-(__)-000
Date Filed: 10/07/26