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Old 01-26-13, 02:04 AM   #5
roflwaffle
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I don't think this is an energy generator so much as an energy storage device. A small town can have a wind turbine/solar panel setup, and something like this would allow for a bit of electricity at night, at higher efficiency than doing the same thing with water. It's less efficient than a battery, but it's also cheaper and would probably last longer.
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