FERC Issues Formal Notice for Isabella Hydroelectric Project Expansion

Strategic Insights -

The Federal Energy Regulatory Commission (FERC) has issued a formal notice regarding the Isabella Hydroelectric Project No. 8377-030, announcing the availability of an Environmental Assessment (EA) for a proposed capacity amendment to the project. The project, located on the Kern River in Kern County, California, aims to increase the total installed capacity from 12.8 megawatts (MW) to 17.8 MW by constructing a new 5-MW generating unit. The EA evaluates the potential environmental effects of the proposed action and concludes that it would not significantly affect the quality of the human environment, provided that environmental protective measures are implemented. The Commission encourages public participation and has set a deadline for comments to be filed by June 20, 2025.

Key Takeaways:

  • The Isabella Hydroelectric Project, located on the Kern River in California, proposes to increase its capacity from 12.8 MW to 17.8 MW by adding a new 5-MW generating unit.
  • The Environmental Assessment (EA) evaluates the potential environmental effects of the proposed action and concludes that it would not significantly affect the quality of the human environment, provided that environmental protective measures are implemented.
  • The project would be constructed and operated in a new 40-foot-by-45-foot concrete structure adjacent to the existing powerhouse.
  • The EA can be viewed on the Commission's website, and public comments are strongly encouraged.
  • The deadline for comments is June 20, 2025.
  • The project is supported by the Commission's Office of Public Participation (OPP), which provides assistance with making filings and navigating Commission processes.
  • The public can contact OPP at (202) 502-6595 or OPP@ferc.gov for further information.

Statistics:

  • The proposed generating unit would increase the total installed capacity from 12.8 to 17.8 megawatts (MW).
  • The new concrete structure would be 40 feet by 45 feet in size.
  • The EA was prepared by Commission staff in accordance with the National Environmental Policy Act of 1969 and FERC regulations, 18 C.F.R. Part 380.
  • Public comments must be filed by June 20, 2025.
  • The project is located on the Kern River in Kern County, California.

Sources:

  • "UNITED STATES OF AMERICA FEDERAL ENERGY REGULATORY COMMISSION Isabella Partners Project No. 8377-030 NOTICE OF AVAILABILITY OF ENVIRONMENTAL ASSESSMENT" (May 21, 2025) -