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A comment on A sand battery could transform clean energy. Parent comment

Re:A sand battery could transform clean energy by mnw21cam on Friday November 04, 2022 @11:43AM (#33468568)
It's not more efficient, for the reasons stated earlier.
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Re:A sand battery could transform clean energy by amelius on Friday November 04, 2022 @12:13PM (#33469093)
It can be more efficient in the sense that you need less space, for example.
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