Mazama Energy has announced the creation of the hottest Enhanced Geothermal System, with a bottomhole temperature of 331 °C, in Newberry, Oregon.
The company plans to proceed to a commercial project, targeting a 15-MW pilot in 2026 and further scaling to a 200-MW development.
Located within the Cascade Range, Newberry is one of the largest geothermal reservoirs in the U.S.
“With geothermal, you get global, round-the-clock energy that is carbon-free, cost-stable, and grid-independent,” said Sriram Vasantharajan, CEO of Mazama Energy.
Mazama Energy announced the start of a demonstration project at the Newberry site in late 2024 to test the feasibility of creating a superhot enhanced geothermal system.
Author's summary: Mazama Energy develops the world's hottest Enhanced Geothermal System.