Analysis on economic and environmental benefit of pumped-storage station

As special power generation mode,the pumped-storage stations have been applied widely in the world.Since the energy saving benefit of pumped-storage stations is difficult to illustrate quantitatively,and the existing calculation method can not be understood easily,the false opinion exists in the power industry that pumped-storage stations in China are sources of energy waste.In view of this,referring to the thought of "equivalent heat-drop",the calculation model of economic and environmental benefit was established based on the method of contract between applying it or not.The systematic calculation method was realized for coal,oil,investment and operation cost saving,and pollutant reduction.The case study in Tai'an Pumped-Storage Station shows that the pumped-storage station is of distinct benefits and great significance for energy saving and environment protection in China.