Theun Hinboun expansion project

The Theun-Hinboun Power Plant (THPP) is a run-of the-river hydropower scheme owned and operated by the Theun Hinboun Power Company Limited (THPC). It was the first hydropower project in Lao PDR developed by the private sector under a concession agreement with the Lao PDR Government. Decision was made in 2007 to increase the installed capacity from 220MW to 500MW by constructing an upstream dam and a new 60MW power plant at the toe of the new dam and by excavating a new underground waterway conveying water to a new 220MW power plant. On this project, Tractebel Engineering has acted as the designer of the EPC Contractor for the open air structures.

The project includes:

• A RCC dam,
• Two headrace tunnels
• Two power plants.