David MacKay discusses this in Sustainable Energy without the Hot Air, and it's pretty disappointing (for fundamental rather than technical reasons). The UK can get at most 1.6% of its energy budget from geothermal.
If you divide the amount of heat the earth dissipates by the number of people, the resulting number is simply pretty low.
It works for places like Iceland, because a large area's worth of heat comes out at one point where the population is low.
https://www.withouthotair.com/c16/page_96.shtml
Peter Bloem (now at mathstodon.xyz)
npub1mj…aht0w
2026-02-26 08:36:55 UTC
in reply to nevent1q…5tac
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2026-02-26 08:36:55 UTCEvent JSON
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