Nam Sam 3A Dam Hydropower Info by Hobo Maps - Go to Hydropower Projects Page - - Home

Nam Sam 3A Dam Hydropower project has also been called Nam Sum 3A on the web. Nam Sam is pronounced "Nam Sahm".

Caution: Nam Sam 3A Dam project is different from Nam San 3A - easy to confuse these

Nam Sam 3 and 3A locations shown on satellite image maps below:

Nam Sam 3 and 3A locations shown on topographic map below:

As we can see in the above map, the Nam Sam 3 and 3A projects are somewhat close together

Nam Sam 3A was planned at first as a 70 MW project but in 2023 there is info of it being 45 MW.

Image below from Phongsupthavy website 2023.

The project is being developed by Phongsupthavy Group.

The Nam Sam 3A project is located in Houaphan Province southeast of Vieng Xay, Lao PDR - below National Road 6 and close to the Vietnam border.

The project has a catchment area of 2335 square km

Satellite images below show Nam Sam 3A Dam location at red markers: 20°09'04.6"N 104°31'27.0"E (20.151278, 104.524167).

Satellite images below show Nam Sam 3A Powerhouse Location - 20°04'53.7"N 104°33'43.0"E (20.081583, 104.561944):

The project is planned to be connected to Vietnam's electricity system transmission grid at the 220 kV Nong Cong Station (near Thanh Hoa Province, Vietnam)

Nam Sam 3A may connect to a 220 kV transmission line for export of output to Vietnam in map below at upper right side. See enlarged version HERE.