Andrew Redd

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Endurance Energy generates net power from a seafloor volcano in first subsea geothermal test

Leading the subsea geothermal push; planning Tonga commercial project

Endurance Energy lowered a 3-ton power plant onto an active underwater volcano nearly a mile beneath the Pacific. Hooked to a natural 281°C seafloor vent on Sept. 27, it produced more electricity than it drew for 8.7 seconds — a first for a seafloor geothermal system, the company says.

Updated Oct 25

Notable Quotes

"On Sept. 27, we put a power plant on an active underwater volcano and made power."

from Endurance Energy generates net power from a seafloor volcano in first subsea geothermal test · Updated Oct 25

"For our first well, the goal was to show we could drill, case, cement, and cap a well on the seafloor, so we kept it small and shallow. That limited how much fluid it could deliver, and deeper wells should change that."

from Endurance Energy generates net power from a seafloor volcano in first subsea geothermal test · Updated Oct 25