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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 2 days ago by [email protected] to c/[email protected]

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[–] [email protected] 4 points 1 day ago* (last edited 1 day ago) (1 children)

I think I understand how the battery where they drop a big weight down a mountain works; how do these work? Or how does it compare in effectiveness as I assume it's probably the same principle?

[–] [email protected] 14 points 1 day ago* (last edited 1 day ago) (1 children)

It has a turbine inside it. It is not a cement ball, it is very misleading title. It's a cement shaped hollow orb with a hydro power generator inside it.

[–] [email protected] 3 points 17 hours ago

Well that sounds like cheating.