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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 3 months ago by to c/futurology@futurology.today
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[–] 3 points 3 months ago

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

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