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Pumped Storage

Pumped storage hydro: The system proposed for Kauai’s west side will use an upper storage pond connected by a five-mile-long buried steel pipeline to a lower pond. During the day, inexpensive solar power would be used to push the water uphill to the storage pond. At night, when demand for electricity is at its peak, the water would be released, flowing downhill through the pipe to turn a turbine and generate electricity. 


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