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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Baihetan Hydropower Station (Project of CTG under construction)

Baihetan Hydropower Station is located at the boundary river section between Yunnan and Sichuan, with it's right bank located in the Qiaojia County of Yunnan and left bank located in the Ningnan County of Sichuan. It is the hydropower station of the second cascade among the four cascade hydropower stations in the downstream section of Jinsha River.

The hydro-complex is mainly composed of concrete double-curvature arch dam, flood discharge structures, energy dissipation structures, water diversion systems, and power generation systems on the left and right bank. The dam crest elevation of the station is 834m, with a maximum dam height of 289m. The arc length of the centerline of the dam crest is 709m and the normal impoundment level is 825m. The total reservoir capacity of the reservoir is 20.627 billion m³, with regulation storage of 10.436 billion m³ and flood control storage of 7.5 billion m³. 8*1,000MW hydro-turbine generator sets are respectively installed in the underground plants on the left and right bank, with a total installed capacity of 16,000MW. The annual average generating output of the hydropower station is about 62.521 kWh. The flood discharge structures are composed of "6 surface holes of the dam body + 7 deep holes" and 3 non-pressure spillway tunnels with crimp connection on the left bank toward the river. The total flood discharge under verified work conditions is about 42,346m³/s.

Construction preparation of the project was started in 2012 and the first batch of generator sets are scheduled to be put into production in July 2021. The project is scheduled to be fully completed in December 2022.

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