Endurance Energy hits a brief milestone in its quest for undersea geothermal power

Endurance Energy prepping to test its geothermal system off the coast of Oregon. (Endurance Photo via LinkedIn) Endurance Energy says its prototype marine geothermal power system generated more electricity than it consumed during a recent deployment 300 miles off the Oregon coast — though the milestone lasted just 8.7 seconds. The Seattle-based startup landed its 3-ton power plant on the seafloor near a natural vent releasing water at about 538 degrees Fahrenheit.