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Consider a hydropower plant reservoir with an energy storage capacity of 0.5 x 106 kWh This energy is to be stored at an average elevation

Consider a hydropower plant reservoir with an energy storage capacity of 0.5 x 106 kWh This energy is to be stored at an average elevation of 40m relative to the ground level. Estimate the minimum amount of water that has to be pumped back to the reservoir.

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