The seventh largest hydropower station in the world – designed with additional flood control, local economic and societal development benefits.
The total installed capacity of this power station is 10,200MW, and the average annual power generation is around 38.91 billion kWh. The water retaining structure is a concrete double-curvature arch dam, with a maximum dam height of 270m, which is the sixth highest arch dam in the world.
The flood discharge facilities consist of surface outlets and middle level outlets in the dam, as well as flood discharge tunnels in the left bank. This allows for a maximum flood discharge of 40,500m3/s.
The power station includes two underground powerhouses (one at each side), each housing six 850MW Francis turbine generators.
Development of Wudongde Hydropower Station involved eight world first technologies, 15 pioneering technologies and eight technological breakthroughs in the hydropower industry, with 395 authorised patents.
The project has also provided remarkable environmental benefits saving around 12.2 million tons of standard coal per year, reducing carbon dioxide emission by 30.5 million tons annually.
The reservoir with flood control storage capacity of 2.44 billion m3 not only moderates the flood peak, but also improves the flood resistance capacity of the Yangtze River in cooperation with the lower three downstream reservoirs. This reduces the disastrous flood volumes previously experienced in the middle and lower reaches of the Yangtze River.
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Changjiang Survey, Planning, Design and Research Co. Ltd. (CSPDR)
Three Gorges Jinsha River Yunchuan Hydropower Development Co. Ltd.
