一、水力开发的历史1892年在京都市作为琵琶湖运河的附属工程试办的水力发电站可以说是日本水力开发的起源。那时,日本对水力开发还缺乏信心。到了1900年以后才正式进行水力发电,1910年以后,水力发电量开始超过火力发电量,从此,日本的水能利用在全国的动力能源中渐渐地占居了主要地位。日本在1930年以前所修建的水力发电站是以河川 I. History of Hydropower Development Hydropower stations that were piloted in Kyoto in 1892 as ancillary works of the Biwako canal can be said to have been the source of Japan’s hydropower development. At that time, Japan still lacked confidence in hydropower development. Since 1900, hydroelectric power has been officially launched. Since 1910, hydroelectric power has started to exceed the thermal power generation capacity. Since then, Japan’s water energy use has gradually taken the dominant position in the nation’s power and energy sources. Hydropower stations constructed by Japan before 1930 are rivers