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> We have run of river hydroelectric in the states that diverts some water via penstock

Do you have wildlife issues to consider in the design? E.g., are the dams on rivers fish migrate up?

Well, run-of-river installations actually don't have dams, and you can prevent most fish with just some mesh, so you're avoiding that impact entirely.

Ah cool, that's good to hear (so long as flows are sustainable, unlike some of our proposals for 'harnessing all that wasted water')

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