Jinwo hydropower station is located in the middle reaches of Tianwan River, a tributary of Dadu River in Shimian County, Ya'an City, Sichuan Province. It is the second stage in the three-level planning of cascade development in Tianwan River Basin. The station is equipped with two Pelton turbine generating units with a single unit capacity of 140000 kW. The total installed capacity is 280000 kW and the average annual power generation is 1.287 billion kwh. The single unit capacity of the Pelton turbine generator set adopted by the power station is among the best in the world, and it is the largest unit capacity in Asia.