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Switzerland dug a hole the size of two soccer fields to install the world’s most powerful underground battery, able to output 1.2 GW within milliseconds. (www.ecoticias.com)
submitted 2 months ago* (last edited 2 months ago) by to c/technology@lemmy.world
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[–] 6 points 2 months ago

The downside is that does batteries are not be energy dense. Perfect for grid storage but useless for car batteries (where the bulk of battery R&D money goes).

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