SMRTR Science & EngineeringSep 16, 2025Interesting Engineering

Startup to test closed-loop geothermal drilling in US to harness Earth’s heat

SMRTR summary

Rodatherm Energy, a Canadian geothermal company, has secured $38 million to develop its innovative closed-loop geothermal system. This system operates as an underground heat pump, using an isolated working fluid to extract heat without fracking or groundwater extraction. It offers 50% higher efficiency and can operate in various geological settings, particularly sedimentary basins. Rodatherm plans to build its first pilot system in Utah, potentially providing clean power for millions.

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