The Newberry project, led by Mazama Energy with funding from the U.S. Department of Energy, has successfully created an enhanced geothermal system that circulates water through hard rock at record-breaking temperatures of 331 C.

This project represents a major milestone towards producing geothermal energy from water hotter than 375 C, where water changes to a supercritical state that carries five times more energy than the subcritical water typically circulated in geothermal projects.