OKLAHOMA CITY–(BUSINESS WIRE)–GreenFire Energy today announced the successful launch of its first commercial next-gen geothermal demonstration project at The Geysers, the world’s largest geothermal field, at a site operated by Geysers Power Company, LLC, a wholly owned indirect subsidiary of Calpine Corporation. Early test results, using an existing geothermal well are extremely positive, providing a potential foundation for what’s possible using next-gen geothermal technology in steam domina