Xe-Pian Xe-Namnoy is a 410MW hydro power project. It is located on Xe-Namnoy, Xe-Pian river/basin in Champasak, Laos. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently active. It has been developed in a single phase. The project construction commenced in 2013 and subsequently entered into commercial operation in 2019. Buy the profile here.


The project was developed by Xe-Pian Xe-Namnoy Power Company Ltd (PNPC). SK Ecoplant, Korea Western Power, RATCH Group and Lao Holding State Enterprise are currently owning the project having ownership stake of 26%, 25%, 25% and 24% respectively.

Xe-Pian Xe-Namnoy is a reservoir based project. The hydro reservoir capacity is 1,043 million cubic meter. The gross head of the project is 600m. The total number of penstocks, pipes or long channels that carry water down from the hydroelectric reservoir to the turbines inside the actual power station, are 1 in number. The penstock length is 768m. The penstock diameter is 3.6m. The project generated 1,879 GWh of electricity. The project cost is $1,020m.

The hydro power project consists of 3 turbines, each with 130MW nameplate capacity.

The hydro power project consists of 1 turbine with 20MW nameplate capacity.

Development status

The project construction commenced in 2013 and subsequently entered into commercial operation in 2019.

Power purchase agreement

Electricite du Laos and Electricity Generating Authority of Thailand are the power offtakers from the project.

Contractors involved

SK Ecoplant was selected to render engineering procurement construction services for the hydro power project.

Korea Western Power is the O&M contractor for the hydro power project for a period of 27 years.

For more details on Xe-Pian Xe-Namnoy, buy the profile here.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Power Intelligence Center, which provides detailed profiles of over 170,000 active, planned and under construction power plants worldwide from announcement through to operation across all technologies and countries worldwide.