Nam Ang Dam Hydropower Info by Hobo Maps - Go to Hydropower Projects Page - - Home

Nam Ang hydropower project is located near Nam Ngone Village, Xansay District, Attapeu Province in the south of Lao PDR.

Location satellite image below with dam site about 50 km southeast of Sekong town.

Nam Ang dam site area image below at coordinates - 15°07'13.9"N 107°06'40.1"E (15.120531, 107.111146)

The project is developed and 100% owned by Chaleun Sekong Energy, also known as CS Energy or CSE.

The project is apparently still in the construction phase in 2025.

Nam Ang is a run-of-river project with a small reservoir capacity of 120,000 cubic meters.

The project capacity is 55 MW from 2 pelton turbines which are expected to generate 163 GWh of output annually.

The power generated from the project is planned to be sold to Electricite du Laos under a power purchase agreement and be transmitted 25 km along a 115 kV transmission line to Xekaman Sanxay substation.

The net head of the project is 337.6 meters and the penstock length is 500 meters.

recent 2025 link to CS Energy web page for Nam Ang HPP that has very little info = https://csenergy.la/business/hydropower/detail/12

Project charts below copied from CS Energy website Dec. 2023 that are no longer on their website in 2025 -

Nam Ang Dam project location is seen on right side of map below.