The Transmission Company of Nigeria (TCN) announced ongoing efforts to stabilize the national grid following a disturbance at 11:29 a.m. on Thursday.

In a statement from Abuja, TCN’s General Manager, Public Affairs, Mrs. Ndidi Mbah, explained that the disturbance was caused by a sudden spike in frequency from 50.33Hz to 51.44Hz. Recovery efforts commenced immediately, with the Abuja axis restored within 28 minutes.

According to Mbah, the frequency spike was linked to issues at one of TCN’s substations, which was shut down to prevent further complications.

“We are actively engaged in major repair work on several critical transmission lines and substations,” she said. “This includes the 330-kilovolt (kV) transmission lines along the Shiroro–Mando axis, significant upgrades at the Jebba Transmission substation, and the restoration of the second Ugwuaji–Apir 330kV transmission line.”

Mbah noted that, following the submission of an investigative report on previous grid collapses, TCN has begun addressing weaknesses identified in the transmission system. The company is implementing both technical upgrades and strategic interventions based on the report’s recommendations.

“While these repairs and improvements are in progress, some degree of instability in the system may persist until major works are completed,” she added. “TCN acknowledges the impact of these disruptions and requests the public’s understanding and patience during this challenging period.”

Mbah affirmed TCN’s commitment to enhancing electricity supply reliability, recognizing the importance of stable power for Nigeria’s socio-economic development. She assured the public that all necessary measures are being taken to ensure the grid’s long-term stability, including efforts to address infrastructure issues like vandalized transmission lines.