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A comment on Giant 'sand battery' holds a week's heat for a whole town. Parent comment

Re:Giant 'sand battery' holds a week's heat for a whole town by pfdietz on Wednesday March 13, 2024 @08:08PM (#39699113)
Sand is cheap, and stays stable up to 1200 C or so. For conversion back to work the efficiency will be much higher than for lower temperature water.
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