The Nigerian Independent System Operator (NISO) has announced the restoration of normal operations on the national grid following multiple trippings on the 330-kilovolt transmission network on Monday.
NISO disclosed that the incident occurred at approximately 12:40 p.m. on October 19, 2026, affecting a section of the national grid.
In a press release issued on Monday and signed by its management, the system operator said it immediately deployed corrective measures in collaboration with the Transmission Company of Nigeria (TCN) to stabilise the power system and restore normal operations.
The operator confirmed that restoration efforts had been completed successfully, adding that the national grid had returned to normal operation.
NISO also moved to counter reports circulating in the media suggesting a wider disruption, insisting that the incident did not affect the entire national grid.
According to the operator, the trippings were limited to a section of the grid, contrary to what it described as unverified reports and claims.
It consequently urged members of the public to disregard misleading information and obtain updates on the state of the national grid only through its official communication channels.
The incident highlights the operational challenges associated with maintaining stability across Nigeria’s electricity transmission network, where disturbances on high-voltage infrastructure can affect power supply to connected areas.
The national grid conveys electricity generated by power plants through the transmission network to distribution companies for delivery to homes, businesses and industries. Multiple trippings on transmission lines can disrupt the flow of electricity and trigger protective responses within the power system.
NISO said it remained committed to maintaining grid stability, ensuring the reliable operation of the national electricity transmission system and providing timely and accurate information to the public.
