Climate change: "Sand battery" could solve green energy's big problem [July, 2022] bbc.com Submitted by ChriAZii t3_10h1z2n on January 20, 2023 at 4:57 PM in Futurology 8 comments 28
rogert2 t1_j57v6xd wrote on January 21, 2023 at 12:34 AM > The efficiency falls dramatically when the sand is used to just return power to the electricity grid. It seems like a major drawback that the stored energy can only be used as heat. Still, a step in the right direction. Bonus points for being based on an absurdly common and valueless material. Permalink 0
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