8. Longtan Dam
Power: 6.43 GW
Country: China
The Longtan Dam ranks 8th on our list of largest hydroelectric dams and power plants in the world. It is relatively new since it was completed in May 2007, and was able to work with full capacity in 2009. However, the idea is almost ancient compared to the date of its completion — the first thoughts of building a dam on the Hongshui River were conceived in the 1950s.
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