America's Geothermal Breakthrough Could Unlock a 150-Gigawatt Energy Revolution

Re:America's Geothermal Breakthrough Could Unlock a 150-Giga... by sgerenser on Sunday April 26, 2026 @07:50AM (#47909574)

I assuming he means insanely more efficient than they used to be, not more efficient than ground-source (awkward wording though). I suppose they can also be described as more efficient in installation time, cost and equipment than ground source, but clearly not in operating efficiency.

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Re:America's Geothermal Breakthrough Could Unlock a 150-Giga... by wood_spirit on Sunday April 26, 2026 @10:51AM (#47910812)

Yes air source are really good value in cost effectiveness terms, especially when a house has an existing central heating system they can connect to. But their COP - whilst dramatically improving in the last 10-20 years - is still behind ground source, particularly in the north during winter

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