水电是可再生的清洁能源，是国家优先发展的符合可持续发展要求的产业。我国有着丰富的水能资源，据全国水能资源普查成果，可开发水电装机容量378亿kw，年发电量192万亿kwh，居世界首位。但资源分布不均匀，以西南地区最多，仅川云贵三省就占全国的507％。而用电负荷则主要集 Hydropower is a renewable and clean energy source and is a national priority for industries that meet the requirements of sustainable development. China has abundant hydropower resources. According to the results of the national survey of hydropower resources, hydropower installed capacity is 37.8 billion kw and annual generating capacity is 192 trillion kwh, ranking first in the world. However, the distribution of resources is not uniform, with the largest number in southwest China, accounting for 507% of the total in the three provinces of Sichuan and Yunnan alone. The electricity load is mainly set