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Energized 500kV Son La – Lai Chau transmission line

Energized 500kV Son La – Lai Chau transmission line - 

On October 14th, 2015, the 500kV Son La – Lai Chau transmission line project has been energized by National Power Transmission Corporation (EVNNPT), 16 days ahead the schedule  required by Vietnam Electricity (EVN) and National Son La – Lai Chau Hydropower Project Steering Committee.

Mr. Nguyen Tuan Tung – EVNNPT’s Vice President chaired the meeting of Project Commissioning Council.

The project on “500kV Son La – Lai Chau transmission line and expansion of 500kV Son La substation” is to evacuate power capacity of Lai Chau Hydropower Plant (1,200MW, with the 1st turbine to be energized by end 2015) and the small- and medium-scale hydropower plants in the North-Western area to the national power system, as well as increase the stability and reliability in operation of power system. ​

The scope of project is to construct a new double circuit 500kV Son La – Lai Chau transmission line of 158.5 km length from the 500kV Son La substation to the switch yard of 500kV Lai Chau hydropower plant; expand and install equipment for two 500kV feeders at the 500kV Son La substation. The 500kV Son La - Lai Chau transmission line route runs through the districts of Muong La, Thuan Chau of Son La province, Tuan Giao, Muong Cha and Muong Lay of Dien Bien province; Nam Nhun of Lai Chau province. The expansion of 500kV feeders is inside the 500kV Son La substation, belongs to Pi Toong commune, Muong La district, Son La province. The project was commenced on 22nd December 2013.

The 500kV Son La – Lai Chau transmission line and expansion of 500kV Son La substation project has a total investment cost of over VND 4,000 billion. It is invested by EVNNPT, with the Northern Power Projects Management Board (NPMB) on behalf of EVNNPT manages the project. The project implementation units include Power Construction Joint-Stock Company 1 (PCC1); One-member Limited Liability Construction Company 2, One-member Limited Liability Construction Company 4, Vietnam Power Construction Joint- Stock Corporation, Song Da 11 Joint Stock Company, Thang Long - Song Da 11 Joint Stock Company, Power Construction and Installation Joint Stock Company, Installation Joint Stock Company. The Power Transmission Company 1 (PTC1) was responsible for expansion and installation of equipment for two 500kV feeders at the 500kV Son La substation, as well as monitoring the project implementation and taking over the management and operation of the project after its completion.

This project was registered with the Central Enterprises Party Committee by EVN and EVNNPT as a typical one to be in honour of the 12th Nationwide Party Congress.

Source: EVN NPT

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