Hongsa Power Plant 100% completed, Xayaboury Hydropower 70% Completed








NAM THEUN 2 PROJECT

PROJECT BACKGROUND

 

1        Project Location

The Nam Theun 2 Project is on the Nam Theun River, a tributary of the Mekong River, at Keng None in Bolikhamsai Province in central Lao PDR.  The catchment area for the Project is in the Annamite Moun- tains that run along the border with the Socialist Republic of Vietnam.  The catchment area is appro- ximately 4,013 km2.  Most of the components of the Project – including the dam, reservoir and power station – are in Bolikhamsai Province and Khammouane Province, with the transmission line passing through the Savannakhet and Khammouane Provinces. 

2.     Technical Data

Power House

Type: surfzce

Height of Intake: 37 m

Units: 4x250 MW  Francis turbines

2x42 MW Penton turbines

Generation: 600 GWh

2 main Cranes: 205 Teach

SWITCHYARD

Earthfill platform: 7 ha

2 SUBSTATIONS

500kV & 115 kV

TRANSMISSION LINES

–   500 kV line (to Thailand): 139 km long double circuit to savannakhet and Mekong crossing

–   115 kV line (to Lao PDR): 30 km long double circuit line to Thakhek