About Bottle Rock Power Plant
Bottle Rock Power Plant is a 55 megawatt dry steam geothermal power plant that provides clean, reliable and renewable energy to homes and businesses in northern California. Bottle Rock sits on a 350-acre site in Lake County, California, in an area known as the Geysers, the largest producing geothermal region in the world. More than 80 local area residents are employed at Bottle Rock, making the plant an important part of Lake County's economic base. As a member of the Cobb Mountain community, Bottle Rock takes its responsibilities seriously and is committed to running a productive, safe and environmentally compliant geothermal operation.
Bottle Rock first began operation in 1985 under the California Department of Water Resources (DWR). DWR suspended its operations in 1991 and later sold the power station to the Bottle Rock Power Corporation. US Renewables Group (USRG) took ownership of the facility in 2005 and in June 2006, Riverstone Holdings and The Carlyle Group acquired a 50% stake in Bottle Rock from USRG. Under its new owners, the plant was refurbished and repowered and the steam field has undergone additional development. Bottle Rock Power came back online in March 2007 and today produces clean, renewable energy under a long-term contract with Pacific Gas & Electric. With plans to increase its energy output, Bottle Rock is well positioned to meet the increasing demand for reliable and green electricity in Northern California.