this post was submitted on 11 May 2025
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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 1 day ago by Dadifer@lemmy.world to c/science@lemmy.world
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[–] MonkderVierte@lemmy.ml 5 points 1 day ago* (last edited 1 day ago)

Why not submerge a tank with a hole at the bottom and blow air in the tank via a hose to store energy?