Reply to post: Re: Energy "storage" via existing hydro

Tesla fingers former Gigafactory hand as alleged blueprint-leaking sabotage mastermind

Alan Brown Silver badge

Re: Energy "storage" via existing hydro

"The one in Wales is about 25% efficient"

That's actually pretty good. If you do the math on battery systems you'll find they tend to be about the same and just about everything else is worse.

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