Enegizing and putting into operation Lai Chau 500 kV Substation and branch

The project was put into operation officially from 23h12 on April 1, 2018 by the Central Project Management Board (CPMB) in collaboration with relevant organizations.

The project has a total investment cost of VND 777 billion. This is a newly - built outdoor substation which has been planned to include two transformers 500/220/35 kV – 450 MVA and 220/110/22 kV – 250 MVA.

At the first stage, the substation operates one 500/220/35 kV – 450 MVA transformer and 220/110/22 kV – 250 MVA transformer, two 500 kV feeders, two 220 kV feeders, and six 110 kV feeders.

The double circuit 500 kV branch connecting Son La - Lai Chau 500 kV transmission line to Lai Chau 500 kV substation is over 1.5 km long.

The project upon operation will evacuate energy from hydropower sources in Lai Chau and Son La provinces to the national power system and increase the reliability and stability of the whole power system.

This project is invested by the National Power Transmission Corporation (EVNNPT). CPMB on behalf of EVNNPT takes charge of project management. Power Transmission Company No.1 will take over the management and operation of the substation. The project is built in Nam Hang commune, Nam Nhun district, Lai Chau province.


  • 02/04/2018 10:50
  • evn.com.vn