Dahua Hydropower Station of Hongshuihe Hydropower Base in Nanpanjiang River

Dahua Hydropower Station is located in the middle reaches of Hongshui River, the main stream of Xijiang River in Dahua County, Guangxi Zhuang Autonomous Region, about 100 km south of Nanning. It is the first large-scale hydropower station built on the Hongshui River. Dahua hydropower station mainly generates electricity, which has benefits such as shipping and irrigation. The construction of the power station opened the prelude to the cascade development of Hongshui River. The power station is equipped with four axial-flow paddle hydrogenerators, with a single unit capacity of 654.38+10,000 kilowatts, a total installed capacity of 400,000 kilowatts, a guaranteed output of 10.68 million kilowatts, and an average annual power generation of 2 10.68 million kwh. After the completion of Tianshengqiao and Longtan Cascades in the upstream, the left bank workshop will be expanded with an installed capacity of 200,000 kilowatts, and finally the installed capacity will reach 600,000 kilowatts, with a guaranteed output of 343,000 kilowatts, and the average power generation for many years will be 33/kloc-0.90 million kWh. The reservoir flooded 489.2 hectares of cultivated land, with immigrants 1689 people. The project started in June 1975, the first power generation unit was generated in February 1983, and was completed at the end of June 1986.

The total length of the dam is1166m, the crest elevation is174.5m, the maximum dam height is 78.5m ... the catchment area above the dam site is1/2,200km2, and the average discharge for many years is1990m3 per second. The normal water level of the reservoir is155m, the dead water level is153m, and the total storage capacity is 964 million cubic meters, which is a daily regulating reservoir. The dam is designed according to the once-in-a-century flood flow of 23,200m3/s, the reservoir water level 163.8m and the once-in-a-century flood flow of 3 1000 m3/s, and the reservoir water level169.3m. The maximum head of the power station is 39.2m, and the minimum head 13.