Startup raises 600 million SEK to harness energy from underwater volcanoes

A startup from Seattle has taken a significant step towards generating electricity from the heat of underwater volcanoes. The company has successfully secured hundreds of millions of kronor from investors, marking a crucial milestone in its quest to develop this innovative energy source.

Endurance Energy aims to extract energy from hot springs located at underwater volcanoes. Earlier tests conducted off the coast of Oregon indicated that the company was able to produce more electricity than the facility consumed, achieving a surplus that lasted for 8.7 seconds with a peak output of 16.5 kilowatts. Though this achievement represents a small beginning, it serves as an important test for the underlying technology.

The company has raised approximately 63 million dollars, equivalent to over 600 million kronor, with the venture capital firm Founders Fund leading a funding round of 54 million dollars. Interest in this venture is growing concurrently with the rising demand for electricity, especially from data centers and industrial sectors. Geothermal energy, which harnesses heat from the Earth’s interior, offers the potential for electricity generation that is not reliant on weather conditions.

Endurance Energy's concept revolves around utilizing thermal energy from volcanically active regions on the seabed. However, the process is significantly more complex than drilling for heat on land; the equipment must withstand extreme conditions, and installation costs can be high.

The next phase for Endurance Energy involves a pilot project in Tonga, where the company plans to develop generators with a capacity of two megawatts, envisioning up to six units. For Tonga, which relies heavily on imported diesel for electricity generation, this technology could represent a viable alternative to fossil fuels.

However, the brief surplus of electricity achieved during initial tests does not yet demonstrate the technology's capability to provide stable power at a competitive price. The company continues to work towards proving the profitability of its innovative approach to energy generation. Dagens PS reported the story.