Nam Ngiep Area Hydropower Dams info by Hobo Maps - Go to Hydropower Projects Page - - Home

Map of Nam Ngiep catchment area's hydropower projects below:

The Nam Ngiep catchment area has a high potential for hydropower development along the river and its tributaries. There are four hydropower projects under development in the catchment and one project under consideration.

TheNam Ngiep 1 Hydropower Project watershed comprises 3,700 sq km of mountainous catchment area with a drop in elevation of 2,600 meters.

Precipitation falling over the catchment area is estimated at roughly 1.87 metres per year. The catchment is hilly with elevations ranging from 157 meters above sea level near the outlet to over 2,800 in the headwaters.

The three projects upstream of Nam Ngiep 1 (Nam Ngiep 2, Nam Ngiep 3A and Nam Chiane 1) are situated relatively high in the headwaters of the catchment and rely on large elevation drops in the topography for their electricity production and not on large volume of river flow.

Although small compared to Nam Ngiep 1, these upstream projects influence the inflow into the Nam Ngiep 1 reservoir.

- Nam Ngiep 2 is on the Nam Sen River a tributary of the Nam Ngiep River and about 94 km upstream of the Nam Ngiep 1 dam site. The Nam Ngiep 2 powerhouse is only 10 km away from parts of Nam Ngiep 1 reservoir.The project includes an inter-basin transfer between the Nam Sen and Nam Siam rivers and a diversion tunnel to supply the reservoir during the dry season from the headwaters of the Nam Ngiep.

- Nam Ngiep 3A is on Nam Ngiep river about 100 km upstream of Nam Ngiep 1 dam site and directly upstream of Nam Ngiep 2. It has a small reservoir with small storage capacity.

- Nam Chiane 1 project is on the Nam Tong River, a tributary of the Nam Ngiep River about 74 km upstream of the Nam Ngiep 1 dam site. It has a small storage capacity of 23.12 million cubic meters which is 1% of the Nam Ngiep 1 reservoir volume.

- Nam Ao- Nam Pot project is located on the Nam Siam River west of Nam Ngiep 2.

For more details and images regarding these Nam Ngiep Area hydropower projects see our

- Nam Ngiep 1 web page HERE

- Nam Ngiep 2 web page HERE

- Nam Ngiep 3A web page HERE

- Nam Chiane 1 web page HERE

Location of the projects are shown on middle right side of map below:

Central Laos relief map below before hydropower reservoirs.