Определение pondage в Английский Язык Английский Язык словарь
The relatively small amount of water behind a run-of-river dam which is used for daily or weekly regulation of the flow of a river
Small-scale storage at a waterpower plant to equalize daily or weekly fluctuations in riverflow or to permit irregular hourly use of the water for power generation to accord with fluctuations in load (After Barrows, 1943, p 166 )