this post was submitted on 17 Jul 2024
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It is? More than batteries?
Im surprised.
Based on some numbers I looked up a couple of years ago:
LiPo 15¢/Wh
Flywheel 15¢/Wh
Compressed air 12¢/Wh
Pumped hydro 11¢/Wh
I'll try to dig up the sources when I get home, but the cost advantage isn't too large, so digging your own reservoirs would put it as more expensive.
Thanks! I guess the hydro is with natural reservoirs?
Yeah I think so
Just cause lithium ion is pretty subsidied and quite energy dense