Compressed air without heat recovery is more like 30%, so this is huge
Comment on Grid-Scale Bubble Batteries Will Soon Be Everywhere
oxbech@feddit.dk 1 month agoOn their website (energydome.com) they claim “75%+” round trip efficiency, so not a bad guess!
fullsquare@awful.systems 1 month ago
brucethemoose@lemmy.world 1 month ago
I was just about to bang out that they must lose a lot of heat from the compression. But apparently not! That’s amazing.
sunbeam60@feddit.uk 1 month ago
That’s a hell of a lot better than most other systems. If true, and if scalable, this is a huge innovation.
fullsquare@awful.systems 1 month ago
compressors, turbines (like steam turbines), piping, container for liquid carbon dioxide, lots of plastic for the bubble, something for thermal storage, dry and clean carbon dioxide, these aren’t unusual or restricted resources, don’t depend on critical raw materials or anything like that