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  • CAISO’s First Geothermal Plant in 30 Years Comes Online

    The first geothermal power plant built in more than three decades within the California Independent System Operator (CAISO) balancing authority has come online. Mammoth Pacific Geothermal, an Ormat Co. subsidiary, declared the 30-MW Casa Diablo IV (CD4) commercially operational on July 20. CD4 is located on public land two miles east of the Town of […]