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Battery alternative

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Battery alternative
« on: June 18, 2020, 08:23:24 AM »
For a home energy solution I am looking at PV and maybe a wind turbine. I live on a hill. Would it be worth having a water tank at the top and bottom of the hill and use surplus electricity to pump to the top tank and then use the pump as a generator at night? Would this be much less efficient that battery storage?


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