Calif: World's largest compressed air grid "batteries" will store up to 10GWh

[rcjordan]

https://newatlas.com/energy/hydrostor-compressed-air-energy-storage/

[littleman]

That's really interesting technology.  Compressed air spins the turbines, but it is still pumping water around quite a bit.  I guess it is more efficient than increasing the PSI by pumping air into the cavern?

[ergophobe]

Wow. 10GWH is a lot of juice! I wonder how much the big dams store (not counting inflows).

[ergophobe]

SUPER HOT SALT MIGHT CUT SOLAR POWER COSTS
https://www.futurity.org/solar-power-costs-molten-salt-2561652

I almost mentioned when you posted the above that I hadn't heard much about superheated salts lately... until today