On the morning of December 24, 2021, as the last rockfill was poured into the silo surface and compaction was completed, the dam of the Lianghekou Hydropower Station under the Yalong River Hydropower under SDIC was filled to the height of 2,875 meters in China, the highest in the world. The second highest earth-rock dam was filled to the top.

Lianghekou Hydropower Station is located in Yajiang County, Ganzi Tibetan Autonomous Prefecture, Sichuan Province. It is the leading reservoir power station developed by the Yalong River Basin Hydropower Development Co., Ltd. in the middle reaches of the Yalong River. It is a key project of the state and Sichuan Province, and the western development optimizes the structure of the energy supply side. The adjusted strategic project is also the current China's highest hydropower station with a million-kilowatt level, the first leading reservoir power station put into operation in the six major hydropower bases in Southwest China, and the largest reservoir power station in Sichuan Province.

The total approved investment of Lianghekou Hydropower Station is 66.457 billion yuan, with a total installed capacity of 3 million kilowatts. The dam of the power station is a gravel-soil-core rockfill dam with a height of 295 meters. The filling of the dam started in June 2016. After 67 months of continuous construction, it was filled to the top one year in advance, and the total filling volume was 43.1 million cubic meters. Meters, equivalent to the volume of 6 bird's nests.

During the construction of Lianghekou Hydropower Station, it has created 9 world tops. Many key engineering characteristic indicators are among the forefront of similar projects at home and abroad. It is a landmark project for China's hydropower development to develop into high-altitude and cold regions, and a milestone in the history of hydropower construction in the world. significance. Since the first two generating units were put into operation in September 2021, the Lianghekou Hydropower Station has currently 5 units put into operation, with a cumulative power generation of more than 1.7 billion kWh, which has made a positive contribution to ensuring energy supply.

Qi Ningchun, Secretary of the Party Committee and Chairman of the Yalong River Basin Hydropower Development Co., Ltd., introduced that with the filling of the Lianghekou Dam to the top, the optimized dispatch of Lianghekou and other reservoirs and the rapid adjustment of hydroelectric generating units can reduce the random fluctuation of wind power, Photovoltaic power generation is adjusted to a smooth and stable high-quality power source that is bundled and sent through the existing hydropower transmission channels in the basin, which can effectively solve the problems of wind and solar development and consumption, and further promote and promote the coordinated development of water, scenery and clean energy in the Yalong River Basin. Help build a world-class green, clean and renewable energy demonstration base.

After the completion of the Yalong River cascade power stations, the annual power generation will reach 150 billion kilowatt-hours. Coupled with the bundled transmission of wind power and photovoltaics, the Yalong River Basin Water and Wind Hybrid Green and Clean Renewable Energy Demonstration Base can contribute more than the clean power every year. 220 billion kilowatt-hours. The continuous export of clean energy to the areas covered by the Yangtze River Economic Zone in Sichuan, Chongqing, East China, and Central China will make an important contribution to promoting the construction of the Yangtze River Economic Zone and the Chengdu-Chongqing Double City Economic Circle and achieving the goal of "carbon peak and carbon neutrality" .Editor/Ma Xue