Quote:
Originally posted by ozyreefa
There is absolutlely no resistance put on the return pump by putting anything into the overflow , however it will take more water above your overflow level to balance out resistance in the pipe from the turbine
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This sentence is a contradiction. How do you get more water above the overflow? By the pump pushing the water to higher level=more pressure head=pump working harder to produce the same flow (or bigger pump)=more electricity.
As an earlier posted put it "there is no free lunch".