Small Hydropower

Seawater       Freshwater      Usable water

Seawater accounts for 70% of the Earth’s surface.The volume of seawater is 1.4 billion cubic kilometers, freshwater is 350 million cubic kilometers, and usable water is 14 million cubic kilometers (only 0.01% of the total water volume). The annual runoff of the top six rivers in China is 1.5 billion cubic meters, meaning a huge amount of usable water flows into the sea every year.Hydropower is one of the best ways to fully utilize freshwater. It is clean, renewable, pollution-free, and has low operating costs. It is convenient for power peak regulation and helps improve resource utilization efficiency and the comprehensive benefits of the economy and society.

Small Hydropower (SHP, below 10 MW) accounts for about 1.5% of total global installed power generation capacity, 4.5% of total installed renewable energy capacity, and 7.5% of total installed hydropower capacity. Only 34.1% of the potential SHP generation capacity has been developed. (2019)

Chongqing Tongnan Sanshi Hydropower Station

Sanshi Hydropower Station is a navigation-enabled hydropower station built on the Fujiang River, constructed with an artificial diversion canal with a total length of 15 km.
The station has a water head of 11 m, equipped with 4 axial-flow generators of 3,200 kW each. It is a dam-type hydropower station.
In 2012, our company participated in the plant expansion and renovation. A Pneumatic Shield Rubber Dam (PSRD) system was installed on the overflow weir, which raised the water head by 0.5 m and increased annual power generation by more than 3 million kWh.
The investment was recovered and profit was achieved in the same year.
Our company now has mature capabilities in the design and construction of Small Hydropower (SHP).
An important contribution is that the turbines we designed are fish-friendly.