The Nigerian Independent System Operator (NISO) has announced that blackout that occured on Wednesday, resulting from system disturbance in the national grid was caused by the tripping of a power generation company (GenCo).
The operator explained that the tripping of a GenCo, resulted in a significant load drop, which cascaded to other GenCos, leading to a system disturbance.
BusinessDay’s check on Distribution Companies load allocation showed that the total load to 11 companies dropped to 120MW. Abuja Disco had 20MW, Benin DisCos had 10MW,Eko DisCos; 0:00, Enugu DisCos; 40MW.
Others include: Ibadan DisCos; 50MW, Ikeja, Jos,Kaduna, Kano, Port Harcourt, Yola DisCos recorded 0.00 at the time.
However, NISO assured of effort to restore power to across the country, as it said it had commenced restoration of the grid at 11:45 hrs, beginning with supply to Abuja from the Shiroro power plant.
“NISO immediately commenced restoration of the grid at 11:45 hrs, beginning with supply to Abuja from the Shiroro power plant, and substantial restoration has been achieved across the country. A full investigation into the immediate and remote causes is underway.
“The outcome (s) of the investigation report would determine the remedial and proactive actions to be taken to forestall future occurrences. We crave your indulgence to bear with us as restoration is still ongoing,” it explained in a statement.

