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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