The national power transmission system reaches all the provinces and cities, and is linked with the grids systems of such countries as China, Lao PDR, and Cambodia thanks to modern technologies.
The 500 kV lines system plays the “backbone” of the national electricity system.
The 220 kV lines system becomes the “backbone” of the regional and provincial power system nation-wide.
EVNNPT is operating 28.612 km of both 500 kV and 220 kV lines.
EVNNPT is operating 176 substations at 500 kV and 220 kV, with a total capacity of 115.650 MVA.