The Three Gorges Dam generates 22,250 megawatts, which makes it the biggest single hydroelectric power source in the world. It has 34 electricity generators, and 32 are main generators. Each generator is powered by water that comes from the reservoir. Each of these 32 generators makes about 700 megawatts of electricity. (This is more electricity than the entire electricity generation of Glen Canyon Dam, one of the biggest dams in the United States.) The other two generators will make power for the dam itself. These two generators each make 50 megawatts.