Overview

• XGS reported more than 3,000 hours of commercial-scale operation at an idle well in California’s Coso field using its proprietary water‑independent closed‑loop system.
• The company characterized the run as the first demonstration of a water‑independent geothermal system at commercial conditions and scale, with record flow‑test performance.
• Flow testing sustained an injection‑to‑production temperature differential greater than 158°F (70°C), which XGS cited as supportive of commercial economics.
• Operating results were said to fall within about 2% of the company’s production model predictions, reinforcing claims of predictable output.
• Thermal Reach Enhancement (TRE) was placed in under 24 hours, and XGS framed the milestone as enabling a 3 GW near‑term pipeline alongside a previously announced 150 MW arrangement linked to Meta and PNM.