The Transmission Company of Nigeria (TCN) has announced the restoration of bulk electricity supply to Lagos after a national grid disturbance caused widespread outages on Thursday morning.
Power was restored through the Benin–Egbin 330kV transmission line, which serves as a critical link in the country’s electricity network.In a statement, TCN explained that the incident occurred at approximately 8:19 a.m. when voltage instability spread across the Lagos corridor.
The disruption triggered the shutdown of several generating stations and led to cascading transmission line outages, resulting in significant interruptions to electricity supply across the region.
The company emphasized that its system operators worked swiftly to stabilize the grid and re-establish supply to affected areas. TCN also reaffirmed its commitment to strengthening grid reliability through ongoing investments in infrastructure upgrades, enhanced monitoring systems, and improved response mechanisms to minimize the impact of future disturbances.
The restoration underscores the challenges facing Nigeria’s power sector, where grid instability and generation shortfalls continue to affect millions of consumers. Industry stakeholders have called for accelerated reforms and investments to ensure a more resilient and sustainable electricity supply nationwide.
The statement, signed by TCN’s General Manager, Public Affairs, Ndidi Mbah, read in part, “At approximately 8:19 am this morning, the national grid experienced voltage instability which rapidly spread across the Lagos corridor, leading to the loss of some generating stations, causing transmission line outages, and the subsequent interruption of electricity supply to Lagos and its environs.”
It added that the National Control Centre swiftly instructed several generating stations to reduce output to arrest the frequency rise and stabilise the system.
The statement disclosed that the Minister of Power, Joseph Tegbe, immediately convened an emergency meeting with the heads of TCN and the Nigerian Independent System Operator to coordinate urgent restoration efforts.
TCN added that the Benin-Egbin 330kV transmission line, which tripped during the incident, has now been fully restored and is currently transmitting bulk electricity.
However, efforts are still ongoing to restore the Benin-Omotoso 330kV transmission line.
“A combined team of TCN engineers from the Benin and Omotoso sub-regions are, however, working assiduously to rectify the remaining faults on the 330kV Benin-Omotoso transmission line to ensure full restoration of bulk power supply to the Lagos complex as quickly as possible,” the statement said.
The transmission company expressed regret over the disruption, saying, “We deeply regret the inconvenience and discomfort this incident has caused residents, businesses, and all electricity customers in the affected areas.”
It assured the public that all relevant agencies were working to restore normalcy.
“Please be assured that the Ministry of Power and all relevant agencies are doing everything possible to rectify the line to enable normal bulk power transmission along the affected line,” the statement added.
The company further noted, “Our goal is to stabilise and strengthen the national grid, with the aim of minimising such recurrence.”
It urged consumers to exercise patience as restoration work continues on the Benin-Omotoso transmission line.
“We urge all affected consumers to please exercise patience as we work to restore bulk power supply through the Benin-Omotoso transmission line. Updates will be provided as restoration progresses,” the statement said.
