Question: The worlds largest pumped hydro storage facility,located in Bath County, Virginia, has a generating capacity of about 3 GW. When generating power, the turbine flow

The world’s largest pumped hydro storage facility,located in Bath County, Virginia, has a generating capacity of about 3 GW. When generating power, the turbine flow rate is roughly 850 m³/s. Estimate the difference in elevation between the upper reservoir and the turbines. The area of the upper reservoir is 110 ha and its surface level fluctuates by approximately 30 m during operation. Estimate the total energy storage capacity of the facility.

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