this post was submitted on 17 Jun 2025
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Finland warms up the world’s largest sand battery, and the economics look appealing. (techcrunch.com)
submitted 3 days ago by Lugh@futurology.today to c/futurology@futurology.today
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[–] Lugh@futurology.today 2 points 3 days ago

A Swiss company is trying this, though using concrete instead of water. Wear and tear and moving parts are disadvantages though.

https://www.swiss.tech/news/giant-gravity-batteries-storage-renewable-energies