Three Gorges Dam calculated based on the average flow rate at the dam site, assuming the water level is 175 m and the plant gross efficiency is 90.15%. The actual power output in 2008 was obtained based on the monthly electricity sent to the grid. The Three Gorges Dam reached its design-maximum reservoir water level of for the first time on October 26, 2010, in which the intended annual power-generation capacity of 84.7 TWh was realized. In 2012, the dam's 32 generating units generated a record 98.1 TWh of electricity, which accounts for 14% of China's total hydro generation. The State Grid Corporation
Three Gorges Reservoir Region Three Gorges Reservoir Region Three Gorges Reservoir Region, including 25 county-level divisions of Chongqing municipality and Hubei province, is the region directly or indirectly involved in the submersion of the water storage of the reservoir region of the Three Gorges Dam. The Three Gorges Reservoir Region is located in the upstream of the Yangtze River at the boundary of Chongqing municipality and Hubei province with the area of 59900 km² and with the population of 16 million. The Three Gorges Reservoir Region stretches along the Yangtze River from Jiangjin District of Chongqing to Yichang City of Hubei, which is very