Ballpark cost of developing small high head hydro plants with a weir (no dam) is 3-5 million dollars per MW. But these usually flood a minimal area like 10000

Ballpark cost of developing small high head hydro plants with a weir (no dam) is 3-5 million dollars per MW. But these usually flood a minimal area like 10000 square meters. Public companies that develop hydro power projects annual reports is a good place to look for this type of information.