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水力发电的不可争辩的优越性(资源可再生、发电成本低、生态上较清洁、容量机动、发电稳定)成了世界各国大力利用水力资源的依据。现在全世界已利用有效水能经济蕴藏量的30%左右。美国、挪威、法国、意大利、日本等国的水力资源已利用殆尽。奥地利、加拿大等国的水力资源开发了一半。发展中国家(中国、印度、巴西、阿根廷)正在大搞水电建设。中国正在建设十几座总容量为5000万 kW 的水电站,巴西、印度在建中的水电站的总容量为1000多 kW。
The indisputable superiority of hydropower (renewable resources, low cost of power generation, ecologically clean, capacity-driven, and stable power generation) have become the basis for countries around the world to make full use of hydropower resources. Now the world has used about 30% of the economic reserves of effective hydropower. The water resources of the United States, Norway, France, Italy, Japan and other countries have been exhausted. Half of the hydraulic resources in Austria, Canada and other countries have been developed. Developing countries (China, India, Brazil, Argentina) are vigorously implementing hydropower construction. China is building more than a dozen hydropower stations with a total capacity of 50 million kW. The total capacity of hydropower stations under construction in Brazil and India is more than 1,000 kW.