根据日本1982年秋季发布的水能资源调查报告中指出,目前日本尚未开发的中小水电的站址有2,717处,最大出力可达1,300万千瓦,年最大发电量约472.6亿度,相当于已开发水电资源的60%。为了降低水电工程造价,加快对开发中小水电建设的速度,日本一方面力求工程设计,施工的标准化、简单化和高效率;另一方面由国家向有关机构提供科研经费,以加强对施工新技术的研究。 According to the report released by Japan in the fall of 1982, it is pointed out that there are currently 2,717 small and medium-sized hydropower stations in Japan, with a maximum output of 13 million kilowatts and a maximum annual generating capacity of 47.26 billion kilowatts, equivalent to the developed 60% of hydropower resources. In order to reduce the cost of hydropower projects and speed up the development of small and medium hydropower construction, Japan, on the one hand, strives for the standardization, simplification and high efficiency of engineering design and construction; on the other hand, the state provides scientific research funds to relevant agencies to strengthen the construction of new technologies Research.