China Three Gorges Corporation China Three Gorges Corporation The China Three Gorges Corporation (CTG, ) is a Chinese state-owned power company, established on 27 September 1993. The company was responsible for construction of the Three Gorges Dam-project, the world largest hydroelectric power plant, that went into operation in 2008. In September 2002, CTG established the subsidiary company China Yangtze Power, which took over operations and management of Gezhouba and Three Gorges dams. CTG is one of the world's largest energy companies with total assets of RMB 475.5 billion (app. USD 77.3 billion) in 2014. Apart Gezhouba and Three Gorges CTG operates and develops more
Three Gorges Dam tonnes each and are designed to produce more than 700 MW of power. The designed head of the generator is . The flow rate varies between depending on the head available. The greater the head, the less water needed to reach full power. Three Gorges uses Francis turbines. Turbine diameter is 9.7/10.4 m (VGS design/Alstom's design) and rotation speed is 75 revolutions per minute. This means that in order to generate power at 50Hz, the generator rotors have 80 poles. Rated power is 778 MVA, with a maximum of 840 MVA and a power factor of 0.9. The generator produces