Gezhouba Dam Introduction

1, Gezhouba Hydropower Hub it is located in China's Hubei Province, Yichang City, the Yangtze River on the end of the Three Gorges section of the river, 2.3 kilometers downstream from the Yangtze River Three Gorges exit Nanjin Pass. It is the first large hydroelectric power plant on the Yangtze River, but also the world's largest low-head, high-flow, run-of-the-river hydroelectric power plant. 1971 May started construction, December 1972 stop, resumed in October 1974, December 1988 all completed. Dam type for the gate dam, the maximum height of 47 meters, the total reservoir capacity of 1.58 billion cubic meters. The total installed capacity is 2.715 million kilowatts, of which 2 sets of 170,000 kilowatts and 5 sets of 125,000 kilowatts are installed in Erjiang Hydropower Station; 14 sets of 125,000 kilowatts are installed in Dajiang Hydropower Station. The average annual power generation is 14 billion kilowatt-hours. The first 170,000-kilowatt unit was put into operation on July 30, 1981.

2. Gezhouba Dam Project has comprehensive benefits such as power generation and improvement of waterways. The installed capacity of the power station is 2,715,000 kilowatts, with a guaranteed output of 768,000 kilowatts and an annual power output of 15.7 billion kilowatts per hour (after the completion of the Three Gorges Project, the guaranteed output can be increased to 1,580,000~1,940,000 kilowatts, and the annual power output can be increased to 16.1 billion kilowatts per hour). The power station is integrated into the Central China Power Grid with 500kV and 220kV transmission lines, and transmits 1.2 million kilowatts of electricity to Shanghai, a distance of 1,000 kilometers, via a 500kV DC transmission line.

3, the reservoir back to 110 ~ 180 kilometers, so that the Sichuan River shipping conditions have been improved. The reservoir has a total capacity of 1.58 billion cubic meters, due to the limitations of shipping; no flood regulation and peak reduction in 2013. After the completion of the Three Gorges Project, the Three Gorges Project can play a counter-regulation role due to the uneven flow of flood regulation downstream, there is a counter-regulation reservoir capacity of 85 million cubic meters.