Nam Ko Dam Oudomxay Hydropower Info by Hobo Maps - Go to Hydropower Projects Page - - - HOME

The Nam Ko Dam hydropower project is located in La district, Oudomxay Province, northern Lao PDR.

There is another Nam Ko reservoir in Xieng Khouang Province and you can see our separate web page for this other project at Nam Ko Xieng Khouang Dam Info .

The project in Oudomxay Province is on the Nam Ko river in the Nam Ou river watershed basin.

The Nam Ko river flows north through the town of Oudom Xay (Muang Xay) and continues about 15 km further north to the Nam Ko hydropower project and then further north until it joins the Nam Phak river not far east of Muang La town, just below National Road 2E.

In 2025 we see on Google Maps that the Nam Ko river is wrongly labelled as the Nam Phak river in the area south of Muang La town.

Location of Nam Ko dam & reservoir is seen on satellite images shown below at coordinates - 20°47'33.5"N 102°07'03.0"E (20.792639, 102.117493). (note: Nam Ko river is wrongly labelled as the Nam Phak river on Google Maps satellite images in 2025 at these coordinates).

We can see parts of a water channel from the dam location to the powerhouse that is about 2.3 km long in image below:

The Nam Ko powerhouse seems to be located at coordinates 20°48'50.0"N 102°07'08.4"E (20.813889, 102.119000) in image below but we can't verify this location yet.

Nam Ko Oudomxay hydropower plant is a small 1.5 MW project with 8 GWh annual output capacity that has been in operation since 1996. The project is owned by EDL.

From the satellite images we can see a small reservoir south of the dam which indicates a run-of-river style project. We also see a rectangular-shaped pond on the discharge side of the dam structure which may be a regulating pond used to release flows downstream in a regular and continuous manner.

Nam Ko HPP images below are courtesy of Bounma Phommasuck as posted on Google Maps page for Nam Ko over the last few years.