Recently, the Bakanhe Tuanjie 200 MW photovoltaic power station and transmission project in Anlong County, Qiannan Prefecture, Guizhou Province, which was EPC contracted by China Energy Engineering Shaanxi Institute, was successfully connected to the grid for power generation, marking the official operation of this provincial-level key new energy project.
This project is one of the major and key projects in Guizhou Province in 2026, with a total installed capacity of 400 megawatts. It consists of two 200 megawatt photovoltaic power stations, Tuanjie and Zhekong, sharing a 220 kV booster station. It is currently the largest single photovoltaic project in Qiannan Prefecture. During the project construction process, efficient N-type double-sided double glass photovoltaic modules were used, and the innovative construction technology of "fixed+flexible" combination brackets adapted to mountainous areas was applied. This process can effectively adapt to complex mountainous terrain, reduce excavation volume while protecting the ecological environment, and further improve the efficiency of solar energy utilization.
The project's transmission line starts from the 220 kV Tuanjie substation and ends at the 500 kV Jinzhou substation, with a total length of 28.45 kilometers (including 28.21 kilometers of overhead lines and 0.24 kilometers of cables). It is constructed using a single circuit and consists of 85 iron towers. The route passes through karst terrain areas, with elevations ranging from 400 meters to 1400 meters. The terrain is undulating, the climate conditions are harsh, and it faces multiple construction challenges such as a large number of cross spans and a high proportion of forest land.
After the project is put into operation, the average annual power generation is about 500 million kilowatt hours, and it is expected to save about 87000 tons of standard coal and reduce carbon dioxide emissions by about 210000 tons annually, with significant ecological benefits. At the same time, the project promotes the coordinated development of green energy and ecological agriculture through comprehensive land utilization and employment, adding new support to the optimization of regional energy structure and green development.
