How high is Baihetan Dam?

Baihetan Dam is located in the lower reaches of Jinsha River, in ningnan county, Liangshan Prefecture, Sichuan Province and Qiaojia County, Zhaotong City, Yunnan Province. The upstream is about 465,438+0 kilometers away from Qiaojia County, and the downstream is about 380 kilometers away from Yibin. The construction of Baihetan Hydropower Station started at 20 10, and it is expected to be completed and put into operation in 2022.

The normal storage elevation of the reservoir is 825 meters, and the maximum dam height is 289 meters, which is much higher than that of the Three Gorges Dam. However, because Baihetan Hydropower Station is sandwiched by two big mountains, the river channel is relatively narrow. Although the dam is very high and the reservoir is deeper than the Three Gorges Reservoir, the total storage capacity is only about 20.6 billion cubic meters, which is not as big as the Three Gorges Reservoir (39.3 billion cubic meters).

Because Baihetan Reservoir is relatively narrow, it is impossible to use gravity dam to resist water pressure like the Three Gorges Dam, so concrete hyperbolic arch dam is used, and the total concrete pouring volume is about 865,438+10,000 cubic meters, which is about half of the concrete pouring volume of the Three Gorges Dam.

In terms of power generation, after the Baihetan Hydropower Station is fully completed and put into operation, the total installed capacity is160,000 kilowatts, and the average annual power generation is 62.4 billion kWh. No matter from the total installed capacity or the average annual power generation, it is smaller than the Three Gorges Hydropower Station. However, Baihetan Hydropower Station has one thing that far exceeds the Three Gorges Hydropower Station, that is, the single unit capacity of hydropower units. The unit capacity of hydropower units in Three Gorges Hydropower Station is only 700,000 kilowatts, while Baihetan Hydropower Station has reached 654.38+0,000 kilowatts.

It is worth mentioning that Baihetan Hydropower Station 1000MW hydro-generator set is very remarkable, which is the largest single unit capacity in the world at present. China has completely independent intellectual property rights, which is of epoch-making significance in the world hydropower history. This includes the endless efforts and painstaking efforts of China researchers, which are hard-won and worthy of pride.

Brief introduction of Baihetan Hydropower Station;

Baihetan Hydropower Station is located in ningnan county, Sichuan Province and Qiaojia County, Yunnan Province. This is the second cascade hydropower station developed in the lower reaches of Jinsha River. It has comprehensive benefits such as power generation, flood control, sand blocking, improving downstream shipping conditions and developing shipping in the reservoir area. The normal water level of the reservoir is 825 meters, with a corresponding storage capacity of 20.6 billion cubic meters. The underground workshop is equipped with 16 units. The initial planned installed capacity is160,000 kilowatts, and the average power generation for many years is 60.24 billion kwh.

The power station plans to officially start the main project in 20 13, the first batch of units will generate electricity in 20 18, and the project will be completed in 2022. After the power station is completed, it will become the second largest hydropower station in China after the Three Gorges Hydropower Station. The barrage is a concrete hyperbolic arch dam, with a dam height of 289m, a dam crest elevation of 834m, a dam crest width of 13m and a maximum bottom width of 72 m ... In April, 2021year, Baihetan Hydropower Station officially began to store water, and the first batch of units were put into production, and a full-scale sprint began.

In May of 20021year, Baihetan Hydropower Station was selected as one of the largest hydropower stations in the world 12. On June 28th, 20021year, Baihetan Hydropower Station was officially put into operation. On June 65438+1October 65438+August, 2022, the rotors of Baihetan Hydropower Station 16 million kilowatt hydro-generator set were all hoisted.