Region: East Asia and Pacific
Country: Lao PDR
Sector: Energy and Power
Keywords: Knowledge Lab, Hydropower, Energy and Power, Land acquisition
The Nam Ngiep 1 Hydropower Project (Project) encompasses the construction of a hydropower dam and a re-regulation dam, a power house, transmission lines, and necessary supporting infrastructure as roads, camp sites, quarries, etc.; developed by the Nam Ngiep 1 Power Company (NNP1PC). The Project is situated on the Nam Ngiep River which is on a left bank tributary of Mekong River. Under the management of the NNP1PC, the Project plans to construct a 148-meter high concrete gravity dam on the Nam Ngiep River, serving as a main power station of 272 MW and annual power generation of 1,546 GWh at substation. Once in operation, the main dam will utilize 66.9 km2 of reservoir area, covering parts of Bolikhamxay and Xaysomboune Provinces. An effective storage of 1,192 million m3 from the reservoir is designed to drop around 130 m to a power station downstream from the main dam.
The Land Acquisition and Compensation Plan–Transmission Line (LACP-T/L) guides the Project on how to implement Land Acquisition and corresponding Compensation of Project Affected People (PAPs) along national and international standards, following the procedures developed in the Project’s Resettlement and Ethnic Development Plan (REDP). The objective of the 230kV Transmission Line (230kV-T/L) is to allow discharge of electricity produced by the Nam Ngiep 1 Hydropower Project (NNP1, the Project) from the main Power House at the Project Site in Bolikhan District/Bolikhamxay Province to Nabong Substation in Vientiane Capital, from where it will switch to an existing 500kV line for power evacuation to Thailand for consumption together with electricity from other Lao hydropower projects. Therefore a new transmission line from the dam site to Nabong Substation will be built with a total length of 121.09 km.
Updated: April 12, 2022