The national electricity grid collapsed on Monday following a widespread loss of generation from major power plants, leaving many parts of the country without power.
Checks showed that the grid went down at about 3 p.m., plunging several states into darkness.
Data obtained indicated that power generation, which peaked at about 4,800 megawatts earlier in the day, dropped sharply to 139 megawatts by 3 p.m.
The cause of the collapse could not be immediately ascertained. However, the incident occurred amid efforts by the Nigerian Independent System Operator to ramp up generation after recent gas supply constraints linked to pipeline vandalism.
As of the time of filing this report, all 22 power plants connected to the national grid had reportedly shut down.
