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this post was submitted on 30 Apr 2024
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Isn't gravity based the thing where the mechanism is, crudely, a rock tied to a rope gets lifted, then the mechanism locks it, and when energy is needed the lock releases, dropping the rock and spinning the turbine?
Takes more energy to lift the rock, but the lock costs almost no energy, and when energy depletes, the lock releases, drops the rock, and offers reserve energy.
Basically all electricity generation, but a rock and a rope.
Hydroelectric Dams are a gravity based battery. Crudely, water falling spins the turbine generating electricity. One of the few power generating methods that doesn't involve first turning water to steam to spin the turbine.
There's several gravity based things. Some lift a piston of rock, some drop weights down old mine shafts...
Maybe? I've also read about using water storage. I really don't know much about using gravity.