Shuangjiangkou Hydropower Project in Sichuan, China

The Shuangjiangkou Hydropower Project in Sichuan, China, is nearing completion. This dam, set to be the tallest in the world, stands at 315 metres. It has a storage capacity of 110 million cubic metres and aims to generate 2,000 megawatts of electricity annually. This power output is sufficient to supply over three million homes. Construction began nearly a decade ago, and the first phase of water storage was completed on May 1, 2025.

Project Details

The Shuangjiangkou dam is located in the Aba Tibetan and Qiang autonomous prefecture. It rises from the upper section of the Dadu River, flowing from theTibetan plateau towards the Sichuan Basin. The dam’s height surpasses that of the Jinping-I dam by 10 metres. The project cost approximately 36 billion Yuan (US$4.9 billion) and has been engineering undertaking.