Economic evaluation of wind-powered pumped storage system

Wind power, a green energy, has become another primary renewable resource of great value in economic utility and industrialization development, like hydraulic power at the time when comes with the pressure from energy crisis and environmental protection. This paper considers a wind-powered pumped storage system based on an 8 MW wind farm. The effect of pumped storage power station to wind power regulation is calculated, and an economic evaluation model was developed. This paper shows that a significant smoothing of the produced power is realized, dispatchable output power can be offered to the system, whereas extra economic benefit can also be achieved.