Nam Hinboun 2 Dam Hydropower Info by Hobo Maps - Thong Lom Dam Info - Go to Hydropower Projects Page - - - HOME

Nam Hinboun 2 Dam project (also known as Thong Lom Dam) was under construction in 2018 but it seems that all activity has stopped. The future of the project is uncertain as far as we know.

Concept images below of what Nam Hinboun 2 dam is planned to look like:

Nam Hinboun 2 Hydropower Project (Thong Lom Dam) is located near Ban Thonglom in Khounkham district, Khammouane province, Lao PDR. Ban Thonglom is situated at the southern end of a long limestone gorge through which the Nam Hinboun flows, about 36 km downstream from the Theun-Hinboun tailrace in Na Hin town.

Nam Hinboun 2 construction site images below at coordinates 18°01'25.7"N 104°25'26.4"E (18.023800, 104.424000):

The crane has been moved in later satellite image below but all else seems unchanged.

The Nam Hinboun 2 Hydropower project represents an investment of almost US$ 90 million and is owned by the Lao government. It is managed by Électricité du Lao (EDL) and was financed with a loan from Krungthai Bank (Thailand). The project was expected to be completed in 2016 but construction was halted and the future is uncertain.

The project was designed to generate electricity by using water flowing downstream after discharge from the Theun-Hinboun power plant at Na Hin. 

The Nam Hinboun 2 Hydropower Project is designed as a run-of-river hydropower project. The designed capacity is 30 MW. The annual net electricity supply would be 155 GWh.

Image below of site before construction.

Images below of construction progress in 2018.

The construction of the project includes concrete faced rock-fill dam, reservoir, spillway, diversion system, power house and transmission system. The area of the reservoir at full water level would be 2.57 sq km. Active Storage Volume: 25.6 million cubic meters

The power generated by the two 15.3 MW generators was planned to be supplied to Khone Song substation in Pak Kading, Borikhamxay Province and linked with EDL system 115kV transmission lines in the Lao power grid.

Nam Hinboun 2 location shown on Topographic Map below:

Projected reservoir inundation area shown on image below:

Nam Hinboun 2 Dam project shown on upper left of map below:

Nam Hinboun 2 plans below: