Development Situation and Relevant Inspiration of Pumped Storage Power Station in the world

Abstract In many countries, pumped storage power stations have gradually become management tools for the power system and are used to meet peak-shaving, valley filling and emergency reserve purpose. In addition, pumped storage power stations can be taken advantage of the unique valley filling function to facilitate the development of wind power, such as in Germany, one of the main approaches to digesting and saving wind power is to maintain a high share of pumped storage power generating capacity. Main factors affecting the scale and share of pumped storage power generating capacity include level of economic development, regional load characteristics, power mix and the peak-shaving capacity of interconnected systems. The capacity of pumped storage power stations is also affected by construction conditions, cost and the economics of other peak-shaving approaches of the power system. In China, the construction of pumped storage power stations is entering a fast-growth period. The government should incorporate the construction of pumped storage power stations into its long and medium-term power development plans and regard pumped storage power stations as part of regional power system. In addition, all of the functions offered by pumped storage power stations should be compensated by ancillary services supporting schemes.