The Three Gorges Dam along the Yangtze River is in operation Oct. 3. By Thursday midnight, four power generators of China's Three Gorges Project, the world's largest hydropower project, had generated a total of 2.8 billion kilowatts of electricity since the first generator began its operation. (Xinhua Photo)

A technician monitors the running of the electricity-generating units at the Three Gorges Project Oct. 3. (Xinhua Photo)

People visit the Three Gorges Dam along the Yangtze River Oct. 3. The dam which has become a popular tourism destination received more than 9,000 tourists Friday, hitting a record high since it started construction. (Xinhua Photo)

A couple and their children pose for a photo in front of the Three Gorges Dam along the Yangtze River Oct. 3. (Xinhua Photo)