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A comment on Gravity Energy Storage: Alternative to batteries for grid storage. Parent comment

Re:Gravity Energy Storage: Alternative to batteries for grid... by justapassenger on Tuesday January 05, 2021 @10:12PM (#25654322)
Supply and demand is great, but calling it “battery” is a huuuge stretch. Batteries manage supply, pricing helps manage demand. You need both.

Gas prices at the pump is pretty bad example. Varying electricity prices are build on shifting demand by few hours. Gas prices are unpredictable and you cannot really shift demand much, and prices swings can last years.

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Re:Gravity Energy Storage: Alternative to batteries for grid... by WalterBright on Tuesday January 05, 2021 @11:45PM (#25654740)
Modulating demand by modulating the price won't solve the entire problem, but I bet it could reduce the size of needed grid batteries by a huge margin.

> calling it “battery”

I did put it in scare quotes, because although it is not an actual battery because it does not store/release charge, it serves the purpose of one.

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