Kentucky Public Service Commission Approves Duke Energy's Gas Cost Adjustment Rate

Strategic Insights -

The Kentucky Public Service Commission has issued an order approving Duke Energy Kentucky's Gas Cost Adjustment (GCA) rate report, effective September 2, 2025. The commission found that Duke Energy's proposed GCA is fair, just, and reasonable, and should be approved for final meter reading. The approved GCA rate is $6.774 per 1,000 cubic feet (Mcf), a decrease of $2.208 per Mcf from the previous rate. The commission also approved a Gas Cost Adjustment Transition (GCAT) Rider rate of $0.0110 per 100 cubic feet, which will be applicable to customers who begin receiving the Rate FT-L transportation service after the effective date of this Order. Furthermore, the commission ordered Duke Energy to submit all invoices it receives along with its monthly usage reports for each month of the reporting period when it files its future GCA rate reports.

Key Takeaways:

  • The Kentucky Public Service Commission approved Duke Energy Kentucky's Gas Cost Adjustment (GCA) rate report, effective September 2, 2025.
  • The approved GCA rate is $6.774 per 1,000 cubic feet (Mcf), a decrease of $2.208 per Mcf from the previous rate.
  • The commission also approved a Gas Cost Adjustment Transition (GCAT) Rider rate of $0.0110 per 100 cubic feet for customers who begin receiving the Rate FT-L transportation service after the effective date of this Order.
  • Duke Energy must submit all invoices it receives along with its monthly usage reports for each month of the reporting period when it files its future GCA rate reports.
  • The commission ordered Duke Energy to include an electronic version of its GCA reports containing supporting calculations in Excel spreadsheet format with all formulas, columns, and rows unprotected and fully accessible.
  • Duke Energy must document the purchase of sustainable natural gas from a renewable source during the reporting period of its future GCA reports in its cover letter to the commission.

Statistics:

  • The approved GCA rate is $6.774 per 1,000 cubic feet (Mcf).
  • The approved GCA rate is a decrease of $2.208 per Mcf from the previous rate.
  • The Gas Cost Adjustment Transition (GCAT) Rider rate is $0.0110 per 100 cubic feet.
  • The commission ordered Duke Energy to submit all invoices it receives along with its monthly usage reports for each month of the reporting period when it files its future GCA rate reports.
  • The reporting period for Duke Energy's GCA reports will cover from July to December 2025.

Sources:

  • "Order" in Case No. 2025-00241, issued by the Kentucky Public Service Commission on August 22, 2025.
  • "Case No. 2025-00121, Electronic Purchased Gas Adjustment Filing of Duke Energy Kentucky, Inc. (Ky. PSC May. 29, 2025)".
  • "KRS 278.274(1)".
  • "KRS 278.274(2); KRS 278.274(3)(c); and KRS 278.274(3)(d)".
  • "Case No. 2018-00143, Electronic Purchased Gas Adjustment Filing of Duke Energy Kentucky, Inc. (Ky. PSC May 23, 2018)".
  • "Appendix to an Order of the Kentucky Public Service Commission in Case No. 2025-00241"