Startup taps underwater volcano as energy source in “proof point” test
Summary
Ars Technica reports on Endurance Energy's subsea geothermal prototype and its brief net-positive power test. The demo demonstrates technical feasibility but highlights challenges such as deeper wells, a software glitch, and a cabling fault. The company plans larger deployments, including a 2 MW unit for Tonga, as offshore geothermal energy scales.