<Li> <P> Pressure buffering hydropower is the compilation of run - of - river and pumped storage hydro power generation . </P> </Li> <P> Pressure buffering hydropower is the compilation of run - of - river and pumped storage hydro power generation . </P> <P> A hydropower resource can be evaluated by its available power . Power is a function of the hydraulic head and rate of fluid flow . The head is the energy per unit weight (or unit mass) of water . The static head is proportional to the difference in height through which the water falls . Dynamic head is related to the velocity of moving water . Each unit of water can do an amount of work equal to its weight times the head . </P> <P> The power available from falling water can be calculated from the flow rate and density of water, the height of fall, and the local acceleration due to gravity . In SI units, the power is: </P>

Which term means the amount of energy in a body or stream of water