this post was submitted on 28 Jul 2026
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Finland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWh (www.cnbc.com)
submitted 1 week ago by Lugh@futurology.today to c/futurology@futurology.today
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[–] Beacon@fedia.io 3 points 1 week ago

OP why did you add this into your title when the article doesn't say that anywhere in the text?