Nghi Son II – Grid Line is a 500kV overhead line with a length of 39.6km from Nghi Son II Thermal Power Plant, Thanh Hoa, Thanh Hoa, Vietnam, to Main Grid, Nghe An, Nghe An, Vietnam.

Construction works on the Nghi Son II – Grid Line started in 2018 and the project was commissioned in 2021.


The Nghi Son II – Grid Line, which is an overhead line, is being operated by National Power Transmission. The Nghi Son II – Grid Line is a new line. The line carries alternating current (AC) through double circuit cable.

Nghi Son II – Grid Line project development status

The development of the Nghi Son II – Grid Line project was approved by Electricity Regulatory Authority of Vietnam in 2018 and the project works were completed in 2021.

About National Power Transmission

National Power Transmission Company is established to supply safe, stable, reliable and continuous power transmission services, and ensuring power supply. The company is based in Vietnam.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.