GoKawiilEndurance Energy demonstrates subsea geothermal plant at Axial Seamount volcano
Seattle startup Endurance Energy tested a 3-ton prototype geothermal power plant nearly a mile underwater near the Axial Seamount volcano in September, generating under 10 seconds of net-positive electricity during a three-week deployment. The plant drilled two holes about 5,000 feet deep using a subsea lander launched from the ship Ocean Guardian, demonstrating the concept's technical feasibility rather than sustained power generation.