There are simpler technologies that already exist on this principle pumped hydro... | Hacker News

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		acc_297 on Dec 15, 2022 \| parent \| context \| favorite \| on: Na-S Battery: Low-cost with four times the capacit... There are simpler technologies that already exist on this principle pumped hydro being the main one this proposal seems like overkill to have so much storage in a single location

RGamma on Dec 15, 2022 [–]

Well of course you can divide up the mass and build several smaller installations.

I was merely hinting at the fact that pumped hydro storage can be made more compact and flexible by compressing the liquid with a piston.

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