抽水蓄能电站,耗用4kWh低谷电量发出3kWh高峰电量,就本身而言是耗能大户;但运行中可优化其他机组的运行方式,从系统角度来看是“节能英雄”抽水蓄能电站是指利用电力系统负荷低谷期的电能抽水至上水库,负荷高峰期放水至下水库发电的水电站,启动迅速,运行灵活,在电力系统中承担调峰、填谷、调频、调相及事故备用等任务。我国从上世纪60年代后期开始建设,21世纪后发展迅速,截至2012年底共有抽水蓄能电站34座,投运26座,在建8座,总装机容量2958.5万千瓦,约占全国总装机的1.7%。 Pumped-storage power plants, which consume 3kWh of peak energy from 4kWh of trough power, are large energy consumers in themselves; however, the operation of other units can be optimized during operation, from a system point of view Power station refers to the use of electric power system load during the pumping of energy to the reservoir, the peak load discharge to the next reservoir hydropower station, start fast, flexible operation, in the power system to undertake peak shaving, filling, FM, phase modulation and accident backup Other tasks. China started construction in the late 1960s and developed rapidly after the 21st century. As of the end of 2012, a total of 34 pumped storage power stations were put into operation, 26 were put into operation and 8 were under construction with a total installed capacity of 29.585 GW, accounting for a total of approximately 1.7%.