记者从中国长江三峡集团公司获悉,三峡集团长江流域葛洲坝、三峡、溪洛渡、向家坝四大水电站2015年累计节水增发电量115.4亿千瓦时。节水增发电量是指通过采取科学调度、精细管理等措施将本来要从泄洪渠道下泄从而被浪费掉的水用于发电所增加的发电量。 The reporter learned from China Three Gorges Corporation that the cumulative water-saving generating capacity of the four major hydropower stations in Gezhouba, Three Gorges, Xiluodu and Xiangjiaba in the Three Gorges Project in the Yangtze River Basin in 2015 amounted to 11.54 billion kwh. Water-saving electricity generation refers to increasing the amount of electricity generated by generating electricity by using water that has been discharged from a flood discharge channel through measures such as scientific dispatch and fine management.