Welcome to The Geysers

In the Mayacamas Mountains, located 72 miles north of San Francisco, 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.

The Geysers, comprising 30 square miles along the Sonoma and Lake County border, is the largest complex of geothermal power plants in the world. Calpine, the largest geothermal power producer in the U.S., owns and operates 15 power plants at The Geysers with a net generating capacity of about 725 megawatts of electricity - enough to power 725,000 homes, or a city the size of San Francisco.

The Geysers meets the typical power needs of Sonoma, Lake, and Mendocino counties, as well a portion of the power needs of Marin and Napa counties. In fact, The Geysers satisfies nearly 60 percent of the average electricity demand in the North Coast region from the Golden Gate Bridge to the Oregon border. The Geysers is one of the most reliable energy sources in California delivering extremely high availability and on-line performance and accounts for one-fourth of the green power produced in California.

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Earth Day Celebration 10 a.m. to 3 p.m. April 18, 2009 Calpine Geothermal Visitor Center Schedule of Events

Take a free tour of a geothermal power plant

Many organizations will have informational booths, activities and giveaways. Musical performers will provide entertainment throughout the day.

Visitors can participate in interactive activities, crafts, demonstrations, informational booths, exhibits, giveaways, vendors, Eco Arts sculpture walk, pony rides panning for gems, solar ovens, hybrid cars, and much more!

Reservations are required for the plant tour bus tour. Please call 987-4270 with any questions or to reserve a seat on the bus.

Watch the KQED Quest story, "Geothermal Heats Up."