Quote:
Originally Posted by GurnBlanston
They might be able to employ some kind of syphon assisted pump so the power generation is doing more than pumping the water back up. However, they still have to pay to pump and it's mostly a bust.
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From an energy standpoint you can't win. You might just as well partially close down the water flow through the dam allowing less water passage and keeping the reservoir level higher. Save you the cost and maintance of some seriously huge pumps.