Calpine completes 25MW expansion at California geothermal complex

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THE GEYSERS GEOTHERMAL COMPLEX COMPLETES 25-MEGAWATT EXPANSION PROJECT, STRENGTHENING CALIFORNIA GRID RELIABILITY

June 8, 2026 8:00 AM EDT

MIDDLETOWN, Calif., June 8, 2026 /PRNewswire/ -- Calpine, a business unit of Constellation, has announced the completion of a 25-megawatt (MW) expansion project at The Geysers geothermal complex located in Sonoma County, California. The addition builds on Calpine's continued investments in The Geysers to support... More