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A comment on America's Geothermal Breakthrough Could Unlock a 150-Gigawatt Energy Revolution. Parent comment

Re:America's Geothermal Breakthrough Could Unlock a 150-Giga... by jeffbee on Saturday April 25, 2026 @10:34PM (#47906752)
Yes, the efficiency is worse, but as is also the case for solar power you need to get used to not caring much about efficiency. It is nuclear energy where the primary side is provided free of charge. The Carnot efficiency is almost without relevance.
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Re:America's Geothermal Breakthrough Could Unlock a 150-Giga... by micro2588 on Saturday April 25, 2026 @10:47PM (#47906803)
In geothermal there is still a lot of interest in efficiency and exploring different working fluids because binary systems now have efficiencies of 10-20%. That is why you see companies like Sage Geosystems working on developing / deploying supercritical CO2 turbines to try and boost practical power densities.
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