You can make it work under pressure and/or add salt. | Hacker News

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		kgabis on March 14, 2024 \| parent \| context \| favorite \| on: Giant 'sand battery' holds a week's heat for a who... You can make it work under pressure and/or add salt.

omegabravo on March 14, 2024 [–]

You would need a pressure vessel and corrosion resistance, and potentially a pump driving up the cost.

solar panel with sand is mechanically and electrically much simpler

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