NISO restores national grid, dismisses reports of nationwide disruption

By OnuOkorie

Nigerian Independent System Operator (NISO) has restored the national electricity grid to normal operation after multiple trippings on the 330-kilovolt transmission network triggered a disruption on Monday.
The incident, which occurred at about 12:40 p.m. on October 19, 2026, affected a section of the transmission network, prompting concerns over the stability of the national power system.
However, NISO dismissed reports suggesting a nationwide grid disruption, insisting that the incident was limited to part of the transmission network and did not amount to a complete collapse of the national grid.
In a statement issued by its management, the system operator said it immediately activated corrective measures in collaboration with the Transmission Company of Nigeria (TCN) to stabilise the network and restore normal operations.
According to the operator, the restoration process has been completed, with the national grid returning to normal operating conditions.
The clarification comes amid reports circulating in the media about the incident, with NISO urging Nigerians to disregard unverified information and rely on its official communication channels for updates on the state of the electricity grid.
The operator reiterated its commitment to maintaining grid stability, ensuring the reliable operation of the national electricity transmission system and providing timely and accurate information to the public.
The incident highlights the operational challenges facing Nigeria’s electricity transmission network, where disturbances on high-voltage infrastructure can affect sections of the power system and trigger concerns about the stability of electricity supply.
NISO did not disclose the specific cause of the multiple trippings or provide details of the locations affected by the incident in its statement.

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