华东电网水电比重日益下降，系统发展需要建设多种型式的调峰电源。通过对新安江电站扩机与兴建抽水蓄能电站的比较分析，认为二者各有利弊，并不互相排斥。就目前的工作深度而言，新安江电站扩机６０万～８０万ｋＷ技术上可行，经济上合理。建议抓紧开展下阶段前期工作；新安江电站扩机所需资金应从全网角度解决。 The proportion of hydropower in East China Power Grid is declining day by day. The system development needs to build various types of peaking power supply. Through the comparison and analysis of the expansion of Xin’anjiang Power Station and the construction of pumped storage power station, it is considered that both have their own advantages and disadvantages and are not mutually exclusive. In terms of current work depth, the expansion of Xin’anjiang Power Plant 600,000 ~ 800,000 kW is technically feasible and economically reasonable. It is suggested that the preparatory work for the next phase should be stepped up; the capital required for the expansion of Xin’anjiang Power Plant should be solved from the perspective of the entire network.