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The original was posted on /r/technology by /u/IKeepItLayingAround on 2026-08-19 19:03:20+00:00.
Finland's Sand Battery May Have Solved Renewable Energy's Biggest Problem
Submitted 12 hours ago by bot@lemmit.online [bot] to technology@lemmit.online
https://www.gadgetreview.com/finlands-sand-battery-may-have-solved-renewable-energys-biggest-problem