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United States. Federal Energy Regulatory Commission

Louisville Gas and Electric Company Submits Amended and Restated Interconnection Agreement to Federal Energy Regulatory Commission

Strategic Insights

— 2 min read

The Louisville Gas and Electric Company (LG&E) and Kentucky Utilities (KU) have submitted an Amended and Restated Interconnection Agreement (Amended IA) to the Federal Energy Regulatory Commission (FERC). The agreement reflects the proposed sale of certain transmission assets in Daviess County, Kentucky, by LG&E/KU to Big Rivers Electric Corporation (BREC). This sale is intended to accommodate the integration of the City of Owensboro, Kentucky, into the Midcontinent Independent System Operator (MISO). The Amended IA will allow OMU to physically connect to BREC, which is an existing MISO transmission owner.

Key Takeaways:

  • LG&E/KU request the FERC to accept the Amended IA for filing as LGE and KU Joint Rate Schedule FERC No. 518 with an effective date of December 31, 9998.
  • The effective date of the Amended IA will align with the closing date of the sale of LG&E/KU transmission assets to BREC and OMU's integration into MISO, which is expected to occur around March 1, 2027.
  • LG&E/KU are requesting waiver of the prior notice requirement set forth in Section 35.3(a)(1) of the Commission's regulations, which requires that changes to rate schedules must be filed not more than 120 days prior to the date on which the change becomes effective.
  • LG&E/KU are filing a copy of the unredacted/CEII version of the Amended IA, as well as the redacted copies required for section 205 filings, to protect critical energy infrastructure information (CEII) under Section 388.113 of the Commission's regulations.
  • LG&E requests that this submittal be treated as CEII as of October 14, 2025, for a period of five (5) years and requests that FERC continue to re-designate this information as CEII indefinitely.

Statistics:

  • The value of the transmission assets being sold to BREC is under $10 million.
  • LG&E/KU are providing open access transmission service to their combined systems pursuant to the terms and conditions of the LG&E/KU Joint Pro Forma Open Access Transmission Tariff.
  • The close of the Daviess County transmission assets is expected to occur around March 1, 2027.

Sources:

  • Federal Energy Regulatory Commission: Amended and Restated Interconnection Agreement, Docket No. ER25-___-000.
  • Midcontinent Independent System Operator, Inc. (MISO) tariff currently on file with the Commission.
  • Settlement Agreement between LG&E/KU and OMU, dated June 16, 2025.
  • Asset sales agreement between LG&E/KU and BREC, dated June 16, 2025.
  • Implementation Guide for Electronic Filing of Parts 35, 154, 284, 300, and 341 Tariff Filings, dated November 10, 2016.

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