Tech

Startup taps underwater volcano as energy source in "proof point" test

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 19/10/2026, 19:43:24 UTC.

Briefings

Endurance Energy successfully demonstrated a 3-ton prototype subsea geothermal power plant at the Axial Seamount in the northeast Pacific Ocean during a three-week test in September 2026. The system generated less than 10 seconds of net-positive electricity, proving technical feasibility for underwater renewable energy. Andrew Redd, CEO of Endurance Energy, noted that the deep ocean provides unlimited cold seawater for cooling and maintains system pressure, allowing for compact plant designs.

Key points

• Endurance Energy deployed a 3-ton prototype power plant at the Axial Seamount in the northeast Pacific Ocean during a three-week test in September 2026.
• The system generated less than 10 seconds of net-positive electricity, demonstrating technical feasibility for subsea geothermal power.

Context

Endurance Energy, a Seattle-based startup, aims to commercialize subsea geothermal power for Pacific island nations and customers seeking alternatives to fossil fuels. The Axial Seamount in the northeast Pacific Ocean served as the test site for this proof point demonstration.

Limitations

The evidence is limited to a single three-week test deployment in September 2026. The system generated less than 10 seconds of net-positive electricity, and the article does not provide data on long-term reliability, commercialization timelines, or specific performance metrics beyond the initial test.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 19/10/2026, 19:52:43 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

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