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The Baihetan Dam is a remarkable feat of engineering, a massive hydroelectric dam located on the Jinsha River in Sichuan and Yunnan provinces in southwest China. It is the last large hydropower project in China and the second-largest hydropower plant in the world, after the Three Gorges Dam. This project is part of the world's largest clean energy corridor that connects other mega hydropower projects like the Wudongde, Xiluodu, Xiangjiaba, and Three Gorges Dams.
The Baihetan Dam is a 289-meter-tall double-curvature arch dam, with a crest elevation of 827 meters and a width of 72 meters at the base, and 13 meters at the crest. It impounds the Jinsha River and has a total capacity of 17,924,000,000 m3, that is around 14 500 000 acre-feet. The hydropower station is equipped with 16 hydro-generating units that each have a capacity of 1 million kilowatts, making it the largest single-unit capacity globally.
The surveying of the dam site was done in 1992, and the original plan for the construction of Baihetan Hydropower Station was formally started in 2008. The dam was originally scheduled to be constructed between 2009 and 2018, but the actual construction started on August 3, 2017. The reservoir first started storing water on April 7, 2021. By April 24, the water storage elevation of the power station had risen over 720 meters. The hydropower station started partial electricity generation in July of the same year, and all hydro-generating units of the Baihetan hydropower station became fully operational on December 20, 2022. Experts have noted the four-year construction period as being exceptionally fast for a project of its type.
The Baihetan Dam is not just about generating power; it also provides flood control, improved navigation, and sand blocking. It is estimated to generate 60.24 Terra Watt hours annually and will save about 90.45 million tons of coal per year and consequently reduce annual carbon emissions by 248.4 million tonnes. The dam and reservoir have particularly affected upstream Qiaojia County, providing thousands of jobs to local residents.
The Baihetan Dam has faced criticisms, however. There are concerns about the environmental impact of the dam and the displacement of local communities. The construction of the dam has flooded a large area of land, and the displacement of people and animals has been a major concern. The government has promised to compensate those affected by the project, but critics argue that the compensation has not been adequate.
Despite the criticisms, the Baihetan Dam is a remarkable achievement, a testament to China's determination to become a global leader in renewable energy. The dam and the other mega hydropower projects on the same river system are part of China's ambitious plan to reduce its reliance on fossil fuels and promote sustainable development. The Baihetan Dam is a shining example of what can be achieved with determination, innovation, and investment.
In conclusion, the Baihetan Dam is an engineering marvel, a massive hydroelectric dam that generates clean and renewable energy. It is the last large hydropower project in China and the second-largest hydropower plant in the world.

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Credit:

TruMen Tech:
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New China TV:
https://www.youtube.com/watch?v=WLsntHDG5Rg&ab_channel=NewChinaTV

New China TV:
https://www.youtube.com/watch?v=UeSg35qe5-w&ab_channel=NewChinaTV

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#Construction #Megaproject #Engineering

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