rhythmisaprancer

You and @Thorry84@feddit.nl really summed up my concerns and knowledge gaps succinctly! Don’t want to frac, but don’t want to miss an opportunity, either. Hard to beat pumped, tho. When applicable.

Ya, usually liquids are compressed with air for any useful stored use. Otherwise something must continually pump. Maybe they are putting a large bladder into the ground?

The article doesn’t discuss how they pressurize water. Conventional pumped storage uses gravity,the water isn’t actually pressurized itself. Plus the whole liquid thing. But otherwise, neat!