Federal Energy Regulatory Commission Approves Transmission-to-Transmission Interconnection Agreement

Strategic Insights -

The Federal Energy Regulatory Commission (FERC) has issued a Delegated Order approving the Transmission-to-Transmission Interconnection Agreement between East River Electric Power Cooperative, Inc. and NorthWestern Energy Public Service Corporation, with the Southwest Power Pool, Inc. (SPP) as signatory. This agreement was submitted to FERC on June 6, 2025, and was accepted for filing on August 6, 2025, following a public notice period in which no protests or adverse comments were filed. The agreement does not constitute approval of any service, rate, charge, classification, or rule, and does not recognize any claimed contractual right or obligation affecting or relating to the service or rate.

Key Takeaways:

  • The Transmission-to-Transmission Interconnection Agreement between East River Electric Power Cooperative, Inc. and NorthWestern Energy Public Service Corporation has been approved by FERC, with Southwest Power Pool, Inc. (SPP) as signatory.
  • The agreement was submitted to FERC on June 6, 2025, and was accepted for filing on August 6, 2025, after a public notice period.
  • No protests or adverse comments were filed in response to the proposal, indicating support for the agreement.
  • The agreement does not constitute approval of any service, rate, charge, classification, or rule, and does not recognize any claimed contractual right or obligation affecting or relating to the service or rate.
  • The order is final agency action, and requests for rehearing by the Commission may be filed within 30 days of the date of issuance.
  • The agreement was filed by Natalie Y. Tingle-Stewart, Director, Division of Electric Power Regulation - Central, on behalf of FERC.

Statistics:

  • Date of submission of the Transmission-to-Transmission Interconnection Agreement: June 6, 2025
  • Date of acceptance for filing: August 6, 2025
  • Number of days between submission and acceptance: 61 days
  • Number of protests or adverse comments filed: 0
  • Number of days for filing requests for rehearing: 30

Sources:

  • FEDERAL ENERGY REGULATORY COMMISSION WASHINGTON, DC 20426 OFFICE OF ENERGY MARKET REGULATION Southwest Power Pool, Inc. Docket No. ER25-2436-000 Issued: July 22, 2025
  • Document Accession #: 20250722-3002 Filed Date: 07/22/2025 Document Content(s) ER25-2436-000.docx ..........................................