North Bay Business Journal

  • Calpine plans $700 million Geysers expansion

    October 10th, 2011

    SONOMA COUNTY – Calpine Corporation, the nation’s largest renewable geothermal power producer, plans to build two new power plants adjacent to its existing Geysers steam field in Sonoma and Lake Counties designed to generate a total of 98 megawatts of additional clean energy, pending regulatory approvals.

  • Calpine Geysers project on the rise

    April 26th, 2010

    THE GEYSERS – Five years after contemplating selling its facilities at The Geysers during a difficult bankruptcy, Calpine is on steady ground at the world’s premier geothermal field.

  • Calpine to produce 25 megawatts for San Diego Gas & Electric

    March 31st, 2010

    THE GEYSERS — Calpine Energy Services, which operates a large geothermal power complex in northeastern Sonoma County, signed an agreement with San Diego Gas & Electric to generate 25 megawatts of electricity over a four-year period, it was announced today.

  • PG&E to extend, increase geysers power purchases

    November 5th, 2009

    NORTH BAY — Pacific Gas and Electric Co. announced today it will increase and extend the utility’s purchases of renewable geothermal power from Calpine Corporation’s Geysers Power Company.

  • AltaRock to suspend drilling of Geyers demonstration project

    September 2nd, 2009

    SAUSALITO – AltaRock Energy has suspended the drilling of well E-7, the first well planned as part of its engineered geothermal systems (EGS) demonstration project in the Geysers due to a number of physical difficulties resulting from geologic anomalies in that particular location.

  • ThermaSource hits speed bump, but growth back

    August 31st, 2009

    SANTA ROSA – Not immune to the stagnant economy, ThermaSource is no longer the fastest-growing company in Northern California, but after a tough quarter or two, it’s on the move again, said company marketing specialist Patrick Hanson.

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