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Re:In the US, it's cheaper to build and operate wind farms t... by mschuster91 on Sunday August 18, 2019 @08:36AM (#20729822)
> Far from insignificant, much cheaper (and safer) than the equivalent lithium cells.

Pumped storage "batteries" have one disadvantage though, they are nowhere near as reactive as solid-state batteries can be - think of milliseconds instead of dozens of seconds.

Re:In the US, it's cheaper to build and operate wind farms t... by oliwarner on Sunday August 18, 2019 @09:15AM (#20729957)
You can chain in a relatively small lithium battery to smooth load.
Re:In the US, it's cheaper to build and operate wind farms t... by adrianN on Sunday August 18, 2019 @09:27AM (#20730008)
That's true, but power grids have managed to track demand with production that reacts over dozens of minutes.