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Calpine Corporation - The Geysers

Come Tour The Geysers!

In the Mayacamas Mountains, located north of San Francisco, The Geysers, comprising 45 square miles along the Sonoma and Lake County border, is the largest complex of geothermal power plants in the world making Calpine, the largest geothermal power producer in the U.S.

At The Geysers, naturally occurring steam field reservoirs below the earth's surface are being harnessed by Calpine to make clean, green, renewable energy for homes and businesses across Northern California. owns and operates 14 power plants at The Geysers with a net generating capacity of about 725 megawatts of electricity

Calpine is pleased to offer free community tours departing from the Visitor Center in Lake County and from a few Sonoma County destinations. Calpine tours are led by our expert staff and no tour is the same!

Visit our website at or sign up for a tour today. 

Reservations are REQUIRED.

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