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Tariffs

Electric Rate Filings and Tariff Amendments: Update on Filings and Comment Periods

Strategic Insights

— 1 min read

Several electric utilities and energy companies have submitted filings to the Federal Energy Regulatory Commission (FERC) for review and approval. The filings, which include rate updates, tariff amendments, and requests for waiver and shortened comment periods, have been published in the Federal Register. This update summarizes the key filings and provides information on the comment periods and procedures for intervention and protest.

The filings cover a range of issues, including rate updates, tariff amendments, and requests for waiver and shortened comment periods. Some of the key filings include:

  • Idaho Power Company's informational filing of the 2025-2026 formula rate annual update, which was filed on August 28, 2025.
  • PacifiCorp's tariff amendment, which was filed on August 28, 2025, and includes a request for a shortened comment period.
  • Dairyland Power Cooperative's supplement to its petition for prospective waiver, expedited action, and shortened notice period, which was filed on August 27, 2025.
  • Eldorado Solar Project II, LLC's 205(d) rate filing, which was filed on August 28, 2025, and includes a revised MBR tariff to be effective on October 28, 2025.

Key Takeaways:

  • 11 electric utilities and energy companies have submitted filings to FERC for review and approval.
  • The filings include rate updates, tariff amendments, and requests for waiver and shortened comment periods.
  • The comment periods for the filings range from September 8, 2025, to September 19, 2025.
  • Any person desiring to intervene, protest, or answer a complaint in any of the above proceedings must file in accordance with FERC's regulations on or before 5:00 p.m. Eastern time on the specified comment date.
  • Protests may be considered, but intervention is necessary to become a party to the proceeding.
  • eFiling is encouraged, and more detailed information relating to filing requirements, interventions, protests, service, and qualifying facilities filings can be found at the FERC website.

Statistics:

  • 11 filings were submitted to FERC on August 27, 2025, and August 28, 2025.
  • The comment periods range from 10 days to 12 days.
  • The longest comment period is September 19, 2025, and the shortest comment period is September 8, 2025.

Sources:

  • [1] Federal Register. (2025, August 29). Electric Rate Filing. Retrieved from
  • [2] FERC. (2025, August 29). eLibrary system. Retrieved from
  • [3] FERC. (2025, August 29). Filing Requirements, Interventions, Protests, Service, and Qualifying Facilities Filings. Retrieved from
  • [4] FERC. (2025, August 29). Office of Public Participation (OPP). Retrieved from

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