Startup claims breakthrough in turning the earth’s heat into clean power

Fervo Energy, a leading geothermal energy startup, says it achieved a technology breakthrough that could eventually accelerate the push to pull up carbon-free energy from deep down in the earth. On Tuesday, Fervo said it had successfully completed a full-scale well test that confirms the commercial viability of its next-generation technology. The Houston-based startup uses horizontal drilling techniques and fiber-optic sensing tools to access geothermal resources that are otherwise too expensive or technically complex to reach…