A pumped hydroelectric storage reservoir has an area of 1 km2 and an
average depth of 30 m. The water flows to a lower reservoir with a head of 150 m.
(a) What is the total energy available in MWhe? Assume a generator efficiency of 85%.
(b) What is the average power available (in megawatts) if the upper drains through the turbines over a period of 12 hours?
Correct Answer:
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