Nghi Son Substation is a 500/220kV substation located in Nghi Son, Thanh Hoa, Vietnam. The construction works on Nghi Son Substation began in 2019. The project was commissioned in 2020.


The Nghi Son Substation project is a new substation being operated by National Power Transmission .

The designed voltage level of the project is 500/220kV, while the operating voltage level is 500/220kV. The step-in voltage of the substation is 500kV and the step-out voltage is 220kV. The substation capacity is 900MVA.

Nghi Son Substation has received approval from Electricity Regulatory Authority of Vietnam to undertake the works on the project.

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.