this post was submitted on 06 Apr 2026

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We went to Finland to hear about the new 'sand battery' that will turn stored renewable energy back into power for the electrical grid (www.livescience.com)

submitted 5 days ago by solo@slrpnk.net to c/energy@slrpnk.net

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[–] paraphrand@lemmy.world 1 points 5 days ago* (last edited 5 days ago)

Ah, so it’s gravity?

Nope, it’s heat.