Baihetan Hydropower Station is a huge project in complex geological conditions. The project is located in the dry and hot valley of Jinsha River. Its comprehensive technical difficulty ranks first in the world, and its main technical indicators hit six first in the world

 No. 1 Unit capacity of generator set in the world : 1 million kW

Eight million kilowatt water turbine generator sets are installed on the left and right banks respectively. A single set is 50 meters high and weighs more than 8000 tons. Each set can generate one million kilowatt hours of electricity for one hour, which can meet the power consumption of a family for 400 years.

The largest scale of underground cavern group in the world

The excavation volume of underground cavern is 25 million cubic meters. It is composed of more than 400 caverns, with a total length of 217km.

The largest scale of non pressure spillway tunnel group in the world

In order to ensure the safety of the 10000 year flood project, three of the world's largest non pressure flood discharge tunnels have been built. The flood discharge tunnel group can discharge the flood rapidly, just like building three expressways for the flood, with the maximum flood discharge velocity of 47 meters per second, which is equivalent to 170 kilometers per hour.

The largest scale of cylindrical tailrace surge chamber in the world:

There are 8 cylindrical tailrace surge chambers with a diameter of 42-49m and a vertical wall height of 77-92m, which are the largest diameter and height tailrace surge chambers in hydropower projects built in the world.

It is the first time in the world to use low-heat cement concrete for the whole dam.

The dam of Baihetan Hydropower Station is a concrete hyperboloid dam. "Hyperboloid" is double curved surface in both horizontal and vertical directions. The length of the top arc is 709 meters, and the maximum dam height is 289 meters, which is equivalent to 100 stories of building height. The whole dam is made of low heat cement concrete. The total amount of low heat cement concrete is more than 8 million cubic meters.

The highest anti-seismic parameters of 300m high arch dam in the world

The crack resistance safety factor of the Baihetan concrete structure exceeds 2.0. The dam has withstood and will long withstand 16.5 million tons of the world's second largest hydraulic thrust.