FERC Approves GSU Transformer Replacement at Hat Creek 1 Powerhouse

Strategic Insights -

The Federal Energy Regulatory Commission (FERC) has approved the replacement of the General Service Unit (GSU) transformer at the Hat Creek 1 Powerhouse, a part of the Hat Creek Project, FERC No. 2661. In a letter dated September 26, 2025, FERC's San Francisco Regional Office responded to a submission from Pacific Gas and Electric Company (PG&E), which had addressed FERC's previous comments on the replacement project. The approval is based on a review of PG&E's submittal, which was submitted in response to FERC's conditional authorization letter dated March 27, 2025. The Hat Creek 1 Powerhouse is a hydroelectric facility located in Northern California, and the GSU transformer replacement is part of FERC's ongoing dam safety program.

Key Takeaways:

  • FERC has approved the GSU transformer replacement at the Hat Creek 1 Powerhouse, a part of the Hat Creek Project, FERC No. 2661.
  • The approval is based on a review of Pacific Gas and Electric Company's (PG&E) submittal, which addressed FERC's previous comments on the replacement project.
  • FERC issued a conditional authorization letter on March 27, 2025, and PG&E submitted its response on April 4, 2025.
  • The Hat Creek 1 Powerhouse is a hydroelectric facility located in Northern California, and the GSU transformer replacement is part of FERC's ongoing dam safety program.
  • Frank L. Blackett, P.E., Regional Engineer at FERC's San Francisco Regional Office, signed the approval letter.
  • Mr. Fenggang Ma can be contacted at (415) 369-3319 with any questions regarding the approval.

Statistics:

  • The Hat Creek 1 Powerhouse is part of FERC No. 2661, the Hat Creek Project.
  • PG&E submitted its response to FERC's comments on April 4, 2025.
  • FERC issued a conditional authorization letter on March 27, 2025.
  • Frank L. Blackett, P.E., Regional Engineer at FERC's San Francisco Regional Office, signed the approval letter.

Sources:

  • FEDERAL ENERGY REGULATORY COMMISSION Office of Energy Projects Division of Dam Safety and Inspections - San Francisco Regional Office September 26, 2025 In reply refer to: Project No. 2661-CA VIA FERC Service