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A comment on 'Freeze-thaw battery' stores electricity long-term for seasonal release. Parent comment

Re:'Freeze-thaw battery' stores electricity long-term for se... by ac29 on Tuesday April 05, 2022 @08:59PM (#30927134)
Not all heat is useful. If there was a magic device that could take any heat and convert it into electricity, global warming could be trivially reversed.
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Re:'Freeze-thaw battery' stores electricity long-term for se... by arcticbull on Tuesday April 05, 2022 @09:31PM (#30927386)
There is the Seebeck effect, where you run a Peltier junction in reverse. Efficiency is, to put it mildly, low. [1]

[1] https://en.wikipedia.org/wiki/Thermoelectric_generator

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Re:'Freeze-thaw battery' stores electricity long-term for se... by vikingerik on Tuesday April 05, 2022 @11:30PM (#30928180)
This still works from a temperature differential, not just a quantity of heat.
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Re:'Freeze-thaw battery' stores electricity long-term for se... by nixonpjoshua1 on Tuesday April 05, 2022 @09:32PM (#30927393)
furthermore you could prevent the heat death of the universe :)
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