New life for closed mine? - Belleville Intelligencer - Ontario, CA
I think the reporter might investigate where the power to pump the water up comes from (the grid; during off-peak hours of excess production), but aside from the perpetual motion machine suggestion ...
The pumped storage facility would generate about 400 megawatts of electricity by allowing water to flow through a turbine system from the reservoir to the open-pit mine, and, vice-versa, use power generated by the down flow to pump the water back up to the reservoir to be reused and recycled through the system.
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