Reliable Geothermal Energy for a Sustainable Future
1960-2025
Celebrating 65 years of rich history
13
Geothermal Power Plants owned and operated by Calpine
38
Megawatts of Battery Energy Storage System Projects at The Geysers
28,447
Acres (45 square miles) in Sonoma and Lake Counties and bordering Mendocino County
65
Years of Commercial Geothermal Operations at The Geysers
Geothermal Energy
The Geysers is the largest complex of geothermal power plants in the world. Calpine, the largest geothermal power producer in the U.S., owns and operates 13 power plants at The Geysers.
History
Calpine, in honoring the history of The Geysers from its original discovery to its development, continues to steward this amazing resource.
News & Updates
Social
Today marks 65 years of geothermal energy production at The Geysers. Calpine is proud to play a critical role in optimizing clean energy production from this valuable natural resource and preserving it for generations to come.
Calpine recently sponsored the 93rd Annual Lake County Rodeo. Congratulations to those who placed in their events!
Calpine and The Geysers are proud to work with @SCPPA_Official to provide clean, affordable and reliable energy to the city of Pasadena and its residents!
Thank you to @PasadenaGov for committing to renewable, reliable geothermal energy and partnering with The Geysers!
Geothermal Visitor Center and Tours of The Geysers
Come visit the world’s largest producer of geothermal energy. Calpine offers free community tours on a preset, annual schedule.
