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Finland warms up the world’s largest sand battery, and the economics look appealing. (techcrunch.com)

submitted 11 hours ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 7 hours ago (3 children)

Why not just use a water reservoir which will also fill with water when it rains.

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[–] [email protected] 1 points 6 hours ago

This has no moving parts compared to water storage which requires pumping, and you’re describing hydroelectric power that requires building of dams or levees. Reservoirs are inefficient, have issues with evaporation, and basically flood habitat.

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