Domestic Business

CYPC has four large hydropower stations (Three Gorges, Gezhouba, Xiluodu and Xiangjiaba) along the trunk stream of the Yangtze River, with the total installed capacity of 45,537 MW, and with the annual power generation capacity of about 190 TWh. By "unified dispatching of four reservoirs (Three Gorges, Gezhouba, Xiluodu and Xiangjiaba)", the benefits of unified dispatching of cascade hydropower stations can be fully realized, which will contribute to the improvement of water energy utilization, production efficiency, reduction of production and operation cost. This will in turn consolidate the leading position of CYPC in the global hydropower industry and lay a solid foundation for the efficient implementation of future development strategies.

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Xiangjiaba Hydropower Station

Xiangjiaba Hydropower Station is located at the outlet of Jinsha River canyon, the boundary between Yibin City of Sichuan and Shuifu County of Yunnan. It is a giant hydropower station focusing on power generation, with such comprehensive benefits as flood control, shipping, irrigation, sediment retaining and re-regulation.

The dam of Xiangjiaba Reservoir controls a river basin area of 458,800k㎡, and the annual average runoff of the dam is 146.0 billion m³. The design flood level of Xiangjiaba Reservoir is 380m, with flood control level of 370m, dead impoundment level of 370m, total reservoir capacity of 5.163 billion m³ and flood control storage of 0.903 billion m³.

Xiangjiaba Hydropower Station is composed of structures as barrage, flood discharge structure, diversion structure, power generation structure and ship lift. The length of dam crest of Xiangjiaba Hydropower Station is 896.26m, with dam crest elevation of 384m and maximum dam height of 162m. The maximum lifting height of the ship lift of Xiangjiaba is 114.20m. The design annual passenger transport volume is 400,000 person times, with annual freight transport volume of 1,120,000t. 12 surface holes, 10 middle holes, 2 sediment tunnels and 1 flushing sluice are set. The main task of flood control operation of Xiangjiaba Hydropower Station is to retain flood with it's reservoir and the upstream Xiluodu Reservoir while ensuring project safety. This enhance the flood control standard of cities along the Chuanjiang River section, such as Yibin, Luzou and Chongqing. Together with the Three Gorges Reservoir, the station controls flood for the midstream and downstream sections of the Yangtze River.

Hydropower Station is to retain flood with its reservoir and the upstream Xiluodu Reservoir while ensuring project safety. This enhance the flood control standard of cities along the Chuanjiang River section, such as Yibin, Luzou and Chongqing. Together with the Three Gorges Reservoir, the station controls flood for the midstream and downstream sections of the Yangtze River.Xiangjiaba Hydropower Station has an installed capacity of 6,400 MW, with 8 units installed (rated capacity of each is 800 MW). The annual average generating output of the station in the short term is 30.88 kWh, and will produce 33.091 kWh in the long term.

2014年全面投产发电

The total installed capacity

6,400MW

The annual average generating output in the short term

30.88kWh

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