Nam Sana Dam Hydropower info by Hobo Maps - Go to Hydropower Projects Page - - Home

Nam Sana Hydropower Project is owned by EDL GEN and is located on a tributary of Nam Lik River near Muang Kasi (Kasy) in central Laos about 7.5 km east of National Road 13 north.

Dam structure coordinates - 19°12'57.7"N 102°20'21.2"E (19.216038 102.339227)
Powerhouse coordinates - 19°12'16.8"N 102°18'39.2"E (19.204662 102.310886)

Nam Sana Hydropower locations below:

The site has a watershed catchment area of about 96 square km.

The Nam Sana Project is a run-of-river-project with medium head (elevation drop) of about 160 meters.

Installed capacity is 14 MW (3 units of 4.69 MW each) with average annual output of 49.55 GWh.

The project is 100% owned and operated by EDL GEN.

Thai-based Nawarat was the main contractor.

The project is fully completed and began operating commercially in 2014.

Nam Sana Powerhouse images below:

Nam Sana site images below:

The Nam Sana Hydropower Project is a small-scale project. It consists of a small weir about 7 meters high, a 1,140 meter long headrace box culvert, a surge tank 5.0 meters in diameter, a 1,390 meter long penstock, a small powerhouse of 14 MW installed capacity and two sections of 22 kV line about 60 km long.

Nam Sana project layout image below.

Nam Sana surge tank image below:

Nam Sana weir image below:

Nam Sana Powerhouse site images below:

The project has a low pressure headrace box culvert, a surge tank and a high pressure penstock.

The weir of the Nam Sana project has a height of 7 meters and length of 29.5 meters. The weir crest elevation is at 642 meters above sea level.

The Nam Sana Hydropower Project has a 1,140 meter long headrace culvert, a surge tank 5.0 meters in diameter, a 1,390 meter long penstock, a small powerhouse of 14 MW installed capacity and two sections of 22 kV transmission line about 60 km long.

Summary of important technical information of Nam Sana Hydropower Plant

Storage
Catchment area                              :        96 sq km
Mean Operating water Level         :       642 meters above sea level
Minimum Operation Level            :        640 meters above sea level

Main Dam and Embankment
Type                                               :      Concrete Weir
Height                                             :      7 meters
Length                                            :       30 meters

Powerhouse
Type                                              :     Surface
Dimension of Substructure            :       48.9 meters x 16.75 meters

Turbines
Number and Type of hydraulic Turbine    :   3 units Horizontal Francis
Rated Output                                             :  14 MW Rated Speed                                               
Rated Discharge                                       :   4.07 cubic meters per second per unit 

See nice Nam Sana Dam video HERE .

Nam Sana control room image below:

Nam Sana area watershed basin image below.

Nam Sana switchyard image below:

Nam Sana power transmission route image below:

Nam Sana Powerhouse interior images below.

Nam Sana Dam location shown on left side of map below:

Topographic map below shows dam project in circles:

The Nam Sana project apparently qualifies as a Clean Development Mechanism (CDM) project under the Kyoto Protocol allowing it to receive carbon emission reduction credits. The project will help result in CO2 emission reduction as it's output may displace power generation that otherwise would be based on combustion of fossil fuels. The reduction in carbon dioxide emissions is estimated to be 25,335 tons per year. View or download the CDM application document HERE .

Nam Sana HPP logo below from their Facebook Page - HERE .