GreenFire Energy Launches First Commercial Next-Gen Demonstration Geothermal System at The Geysers

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 dominated reservoirs. The demonstration project’s early performance marks a meaningful leap in geothermal recovery efficiency, highlighting GreenFire Energy’s ability to boost output in mature fields like The Geysers. By matching technology to geology and combining patented systems with field-optimized practices, the project demonstrates a proven path to accelerate geothermal development using next-gen solutions.

“We’re bringing real innovative solutions to the market. We’re delivering on our promises to show how next-gen technology can provide high-performance power with real commercial applications.” – Rob Klenner, President of GreenFire Energy.Share

“This is a breakthrough—not just for our team, but for the future of geothermal,” said Rob Klenner, President of GreenFire Energy. “The ability to demonstrate a successful test at The Geysers is one of the biggest impacts the industry needs right now to scale new geothermal energy to the grid. We’re bringing real innovative solutions to the market. We’re delivering on our promises to show how next-gen technology can provide high-performance power with real commercial applications.”

The system installed in a low-output well nearing idle status is now fully operational–initial results show sustained flow rates between 300-350 gpm with higher-than-expected output temperatures at 310 F in a stable closed-loop system. GreenFire Energy enhances heat recovery by leveraging natural convection and optimizing saturation pressure within the reservoir, while maintaining a closed-loop flow in the liquid phase to bring heat to the surface. This approach enables efficient energy transfer, potentially unlocking more power from existing well infrastructure in places like The Geysers and other geothermal fields while still preserving water mass in the reservoir. Two seven-day production tests have already been completed, step-change testing is complete in both forward- and reverse-flow configurations, and an industry-standard duration steady-state test is nearly complete. These series of high-flow tests are designed to validate performance across multiple operating conditions and applicability in other low-output wells showing the scalability in geothermal fields. This California Energy Commission-funded demonstration project is expected to be completed in June.

About GreenFire Energy

GreenFire Energy is a next-generation geothermal developer matching technology to geology to bring scalable, baseload power to market. By developing premium, co-located power solutions and transforming underutilized geothermal fields into productive energy assets, GreenFire Energy delivers demand-driven solutions for industries such as data centers, defense, and manufacturing. Leveraging advanced heat recovery techniques and proven oil and gas technologies, the company develops geothermal projects that reduce risk, maximize efficiency, and accelerate time to revenue. With a growing portfolio of patents and strategic partnerships, GreenFire Energy is accelerating the role of geothermal energy as an energy addition to a growing portfolio of energy sources to fuel our futures. The company is on a mission to develop 150 MWe of geothermal capacity by 2030. Learn more: www.greenfireenergy.com

Contacts

Media Contact
Diana Kaul, Director of Communications
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