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Baihetan Hydropower Project
 

Located on the lower Jinsha River where Ningnan County of Sichuan Province borders Qiaojia County of Yunnan Province, Baihetan Hydropower Project (Baihetan) is the second step of the cascade development on the lower reaches of Jinsha River with benefits of flood control, silt retention, downstream navigation improvement and formation of a navigational course in the reservoir area.

According to the preliminary design, Baihetan Hydropower Project has a normal impounding level of 820m and a corresponding reservoir capacity of 17.9 billion m3 while the total reservoir capacity is 18.8 billion m3.

The main structures of the project consist of the dam, flood discharge structures, water diversion and power generation facilities. The dam is a double-curvature arch dam with a maximum height of 277m, a crest elevation of 827m, a crest width of 13m, and a maximum bottom width of 72m.

The underground power house is installed with 16 generating units with a total installed capacity of 14000 MW and an average annual power output of 60.24 TWh.

The project is to be officially commenced in 2013 with the approval by the State Council; the first batch of generating units will be commissioned in 2018; and by 2020 the project will be completed.