- Docket Number
- 110 MW
- Sonoma County
- Steam Turbine
- Project Status
- Operational (Geothermal)
- Project Type
- Application for Certification
The Lake View Geothermal Project (Unit 17) is in Sonoma County near the Sonoma County line, in the Geysers Known Geothermal Resource Area along the ridgeline of the Mayacamas Mountains with moderately steep terrain, approximately 15 miles west of the town of Cobb. Unit 17, originally known as Pacific Gas & Electric Company’s (PG&E) Geysers Unit 17 Geothermal Project was certified by the Energy Commission (CEC) in September 1979 and began commercial operation in March 1982.
Unit 17 is a dry-steam geothermal plant that was designed to provide up to 110 MW; however, due to reduced steam pressures, the plant currently supplies about 52 megawatts of base-load electricity to northern California's power grid. Major structures include the turbine building, cooling towers, hydrogen sulfide abatement, and the service building.
In April 1999, the CEC granted a transfer of ownership of Lake View Geothermal (Unit 17), the former PG&E Geysers Unit 17 Geothermal Project to Geysers Power Company, LLC, a wholly owned subsidiary of the Calpine Corporation.
Power Plant Certification and Exemption Processes
As required by the Warren-Alquist Act, the Energy Commission monitors Commission-certified energy projects throughout construction, operation, and closure to ensure compliance with the conditions of certification imposed by the Commission’s Final Decision for approving the projects.