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A comment on Mining Bitcoin with pencil and paper: 0.67 hashes per day (2014). Parent comment

Re:Mining Bitcoin with pencil and paper: 0.67 hashes per day... by vinger on Monday February 15, 2021 @05:35PM (#26148476)
The big miners in China and Iceland are using hydro and geothermal. Pricing the other miners out might have some interesting side effects.
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Re:Mining Bitcoin with pencil and paper: 0.67 hashes per day... by exyi on Monday February 15, 2021 @06:03PM (#26148793)
China is relying heavily on coal power (AFAIK, can't find reliable source quickly). Iceland has clean energy, but in contrary to the popular wisdom "only" ~30% is geothermal, most is hydro. See https://www.electricitymap.org/zone/IS for more detail.
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Re:Mining Bitcoin with pencil and paper: 0.67 hashes per day... by hulahoof on Monday February 15, 2021 @07:15PM (#26149479)
They are taking about the miners, not the grid as a whole. There are some massive operation utilising hydro setups in the middle of nowhere that were otherwise unused
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