The construction site of the second largest hydropower station in the world

The Bach Hac Than hydropower station project on the Kim Sa river of China, when completed, owns an installed capacity of up to 16 million kW.

Bach Hac Than is a hydroelectric project being built by China on the Jinsha River, an upstream branch of the Yangtze River, located between Sichuan and Yunnan provinces.

With a total installed capacity of 16 million kw, Bach Hac Than is the second largest hydroelectric project in the world after the Tam Diep hydropower plant in Hubei province.

Bach Hac Than is the fourth largest hydroelectric dam in the world and the third largest in China.

With the design of a concrete double-arched arch dam of 277m high, 72m wide at the bottom and 13m at the top, the project can manage 430,000km2 river basin, 91% of the Kim Sa river basin.

In terms of volume, the Bach Hac Than Dam is the fourth largest hydroelectric dam in the world and the third largest in China.

Concrete dumping bucket is lifted up by the crane. Concrete is the main component of the dam mixed from stone, sand and adhesive materials. Bonding materials are usually cement and coal ash powder. Powdered coal ash can reduce heat because cement reacts with water to produce, which increases the quality of concrete.

Bach Hac Than hydropower station is expected to start producing electricity by 2021 and is fully operational by the end of 2022.

The project is expected to generate more than 60 billion kWh of electricity per year, equivalent to two thirds of Beijing's electricity consumption in 2015.