我国水力资源的蕴藏量约为6.8亿千瓦,占世界首位。1979年已建成运行的大中型水电站装机容量约1600万瓩,年发电量466亿度。全国平均装机容量利用小时为2910小时。全国小水电资源为1.5亿瓩,已建小水电站(指单机容量为500千瓦以上,电站容量为12000瓩以下)装机容量634万瓩,年发电量120亿度,全国平均装机容量利用小时 China’s reserves of hydraulic resources is about 680 million kilowatts, accounting for the first in the world. In 1979, the installed capacity of large and medium-sized hydropower stations, which have been completed and operated in 1979, is about 16 million 瓩, with an annual generating capacity of 46.6 billion kWh. The national average installed capacity utilization hours were 2910 hours. The national small hydropower resources are 150 million kilowatts. The installed capacity of small hydropower stations (referring to stand-alone capacity of 500 kilowatts or more and power station capacity of 12,000 kilowatts or less), installed capacity of 6.34 million kilowatt-hours, annual generating capacity of 12 billion kilowatts and national average installed capacity utilization hour