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by andechs
1882 days ago
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How big is this tank? Water is heavy, and we're talking about an insanely massive tank to generate any reasonable amount of energy... that can also move and be used as a gravity battery. Anything you build the tank from would also be vulnerable to the corrosion of the sea water. Hydroelectric dams essentially build a tank, but they only build one wall of the tank. Hydroelectric turbines are about 90% efficient, so you're essentially looking to extract the same amount of energy from the weight of the sea water... with the complicating factor of needing to peak smooth due to tides. |
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