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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[–] Earthwormjim91@lemmy.world 1 points 1 week ago

Yeah the article doesn't actually say that at all. That appears to be pulled straight out of OP's ass.

However, if that's the installed cost, and per kW, then that's insanely cheap. Solar where I am is about $2500 per kW capacity installed. $25 per kW would be dirt cheap.