Pacific Gas and Electric Company Requests Extension of Time for Spillway Replacement Project

Strategic Insights -

Pacific Gas and Electric Company (PG&E) has submitted a request to the Federal Energy Regulatory Commission (FERC) to extend the time frame for addressing comments on the 100-percent design submittal for the spillway replacement project at the Tiger Creek Regulator Dam, part of the Mokelumne River Hydroelectric Project. The request, dated September 5, 2025, was made due to the complexity of the project and the need to provide a thorough and comprehensive response to FERC's comments. PG&E has attached a reasoned basis for the request, as required by Title 18 of the Code of Federal Regulations, Section 12.40(d).

Key Takeaways:

  • PG&E is requesting an extension of time to address FERC's comments on the 100-percent design submittal for the spillway replacement project at the Tiger Creek Regulator Dam.
  • The request is based on the complexity of the project and the need for a thorough and comprehensive response to FERC's comments.
  • PG&E has submitted a plan and schedule to address the comments in a letter dated April 10, 2025.
  • The extension of time request includes a reasoned basis for the request, as required by Title 18 of the Code of Federal Regulations, Section 12.40(d).
  • PG&E has designated Masod Salimee, dam safety engineer, and Sonja Langan, senior license coordinator, as points of contact for technical and general questions, respectively.
  • The Mokelumne River Hydroelectric Project is a major hydroelectric project operated by PG&E, with the Tiger Creek Regulator Dam being a critical component.

Statistics:

  • The Mokelumne River Hydroelectric Project is part of PG&E's hydroelectric portfolio, generating a significant amount of renewable energy in California.
  • The Tiger Creek Regulator Dam is a critical component of the project, responsible for supplying water to the spillway.
  • The spillway replacement project is a key component of the Mokelumne River Hydroelectric Project's ongoing maintenance and upgrade efforts.
  • PG&E has committed to addressing FERC's comments in a timely and thorough manner, with a plan and schedule submitted on April 10, 2025.

Sources:

  • Pacific Gas and Electric Company. (September 5, 2025). Letter to Frank L. Blackett, P.E. Federal Energy Regulatory Commission. (Available on elibrary.ferc.gov)