水能的利用（Utilization of hydropower）.docVIP

水能的利用（Utilization of hydropower） Utilization of hydropower Water power development and utilization of the history is quite long. As early as in ancient times, Chinese people invented the water and shuinian. The widely used hydroelectric power generation is the advanced stage for human beings to utilize water power. Water power is a cheap energy resource, and it is still clean energy. The development and utilization of hydropower have been paid much attention to by the countries all over the world, and put it in the priority development position. I. Development of hydropower resources in some countries in the world -- the installed capacity of hydropower in the United States ranks first in the world According to statistics in January 1, 1992, the United States has developed and untapped conventional hydropower stations in 7261, with a total installed capacity of 146 million 700 thousand kilowatts, an annual power output of 529 billion 400 million kwh. In addition, 87 pumped storage power stations have been developed and investigated, with a total capacity of 47 million 500 thousand kw. Conventional hydropower stations and pumped storage power stations can be developed with a total installed capacity of 194 million 200 thousand kilowatts. At the beginning of 1992 statistics, has built 2304 hydropower stations, the total installed capacity of 73 million 490 thousand kilowatts, the annual generating capacity of 306 billion 600 million kwh, respectively, can develop the number of 50% and 58% have been built; pumped storage power station 38 (including 18 hybrid, 20 pure pumped storage) a total of 18 million 100 thousand kilowatts. Conventional hydropower stations and pumped storage power stations total 2324, a total of 91 million 590 thousand kilowatts. Have built more than 1 million kilowatts of large conventional hydropower stations 10, large pumped storage power stations 7, total 17, a total of 31 million 100 thousand kilowatts, accounting for 34% of the total installe