The Transmission Company of Nigeria (TCN) announced that a sudden frequency spike disrupted the national power grid on Thursday morning.
TCN responded immediately, restoring power to the Abuja Axis within minutes and continuing efforts to stabilize the entire grid.
According to a statement from TCN’s General Manager of Public Affairs, Ndidi Mbah, the disturbance occurred around 11:29 AM, when the grid frequency rose unexpectedly from 50.33Hz to 51.44Hz.
Mbah explained that the cause of the surge was traced to one of TCN’s substations, which was shut down to prevent further complications.
In addition to addressing the immediate disruption, TCN is also conducting substantial repairs on critical infrastructure, including the 330kV transmission line along the Shiroro–Mando axis and major upgrades at the Jebba Transmission Substation. Restoration work on the second Ugwuaji–Apir 330kV line is also underway, Mbah noted.
Mbah highlighted that the repairs are part of broader efforts to strengthen Nigeria’s transmission network, following recommendations from an investigative report into previous grid collapses.
“Efforts are being made to close the gaps highlighted in the report,” she said, adding that TCN is implementing technical upgrades and strategic interventions to enhance grid stability.
However, TCN acknowledged that some instability may persist as these extensive repairs progress. “TCN acknowledges the impact of these disruptions and kindly asks for the understanding and patience of the public during this challenging period,” Mbah stated, emphasizing TCN’s commitment to improving the reliability of power supply as critical to Nigeria’s socio-economic growth.
TCN assures the public that it is taking all necessary steps to achieve long-term grid stability and resilience, including addressing damages to infrastructure caused by vandalism.
