After the civil works of No.1 hydraulic generating unit in right-bank underground power station was completed ahead of schedule by 3 months, the installation of generation unit was launched by SINOHYDRO Bureau 7 Co., Ltd. on January 24, 2011. The capacity of the unit is 800 MW, which is the largest for a single hydraulic turbine unit in the world. Yin Qiang, Director of Xiangjiaba Construction Division of SINOHYDRO Bureau 7 Co., Ltd.,said that this marked the first installation of an 800-MW hydraulic turbine generating unit in China and even in the world, and the generating unit has set two world records of the heaviest power generator and the largest hydraulic turbine.