潘家口混合式抽水蓄能电站是在原有常规机组基础上，增装抽水蓄能机组的。其水能参数分两期选择。电站投入运行后，常规机组基本达到设计要求，抽水蓄能机组实际发电量超过设计发电指标，并在电力系统中发挥了较大的作用。利用已建水库和电站修建混合式抽水蓄能电站可以节省工程投资，有利于工程的经济论证。如能缩短工期，降低机组造价，在水头变化较小的已建水电站上增设蓄能机组，扩建混合式抽水蓄能电站具有良好的前景。 Panjiakou hybrid pumped storage power station is based on the original conventional unit, additional pumped storage unit. The water energy parameters in two phases choose. After the station is put into operation, the conventional units basically meet the design requirements. The actual generating capacity of the pumped storage units exceeds the designed power generation index and plays a greater role in the power system. The use of built reservoirs and power stations to build hybrid pumped storage power station can save engineering investment, which is in favor of the economic justification of the project. If it can shorten the construction period and reduce the cost of generating units, it is a good prospect to add accumulator units to built hydropower stations with smaller head changes and to expand hybrid pumped storage power stations.