The Three Gorges Dam is a massive hydroelectric gravity dam that spans the Yangtze River in Yiling District, Yichang, Hubei province, China. It was constructed downstream of the Three Gorges. Since 2012, it has been the world's largest power station in terms of installed capacity, with a capacity of 22,500 MW. The dam generates an average of 95 ±20 TWh of electricity per year, depending on the annual precipitation in the river basin. The dam broke the previous world record of 103 TWh set by Itaipu Dam in 2016, when it produced nearly 112 TWh of electricity after the extensive monsoon rainfalls of 2020.

Construction of the dam began on December 14, 1994, and the dam body was completed in 2006. The power plant of the dam project was completed and fully functional as of July 4, 2012, when the last of the main water turbines in the underground plant began production. Each main water turbine has a capacity of 700 MW. Coupling the dam's 32 main turbines with two smaller generators (50 MW each) to power the plant itself, the total electric generating capacity of the dam is 22,500 MW. The last major component of the project, the ship lift, was completed in December 2015.

In addition to producing electricity, the dam is intended to increase the Yangtze River's shipping capacity and reduce the potential for floods downstream, which have historically plagued the Yangtze Plain. In 1931, floods on the river caused the deaths of up to 4 million people. As a result, China regards the project as a monumental social and economical success, with the design of state-of-the-art large turbines, and a move toward limiting greenhouse gas emissions. However, the dam has caused ecological changes including an increased risk of landslides and this has made it controversial both domestically and abroad.