this post was submitted on 11 May 2025

194 points (97.1% liked)

science

18801 readers

507 users here now

A community to post scientific articles, news, and civil discussion.

rule #1: be kind

founded 2 years ago

MODERATORS

m3t00@lemmy.world

Joleee@lemmy.world

laverabe@lemmy.world

DeadPand@midwest.social

laverabe@lemmy.zip

194

A German Experiment Proved That Simple Concrete Spheres Make Fantastic Batteries. Now, California Plans To Submerge A 9-Meter Diameter Sphere In The Ocean And Is Already Planning Versions Of 30 Meters (farmingdale-observer.com)

submitted 3 weeks ago by Dadifer@lemmy.world to c/science@lemmy.world

80 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] LaLuzDelSol@lemmy.world 4 points 2 weeks ago

Regular pumped hydro has an overall efficiency of about 80%. I would guess these sphere things would be similar, assuming you can put them near a high-voltage line, since the underlying technology (pump and turbine) is the same.