By Olokuta Rofiat
Electricity distribution companies (DisCos), have begun restoring power nationwide following a national grid collapse that caused widespread outages on Monday afternoon.
Data from the Nigeria Independent System Operator (NISO), showed that the grid suffered a system disturbance at about 2:01 p.m. on December 29, 2025, leading to a sharp drop in power generation and near-total supply to most DisCos.
By about 8:00 p.m., generation had recovered to over 2,100 megawatts, allowing gradual restoration of electricity across the country.
Power sent to distribution companies was later increased to nearly 1,900 megawatts, indicating progress in stabilising the grid.
The blackout disrupted homes, businesses and essential services, again highlighting concerns over the fragility of Nigeria’s power infrastructure.
Industry experts have often blamed ageing transmission facilities, gas constraints and technical faults for recurring grid failures.
NISO said investigations into the cause of the collapse are ongoing, while DisCos continue efforts to fully normalise power supply nationwide.
