By John Umeh
The Transmission Company of Nigeria (TCN) has announced a force majeure on the Ikeja West–Osogbo 330kV transmission line after a powerful rainstorm brought down a key transmission tower, disrupting power evacuation across parts of the South-West.
The development, which occurred on Thursday, April 16, 2026, affected one of the country’s most important electricity transmission routes linking Lagos to Osun and other neighbouring states.
In a statement released on Sunday, TCN’s General Manager, Public Affairs, Ndidi Mbah, explained that the line tripped during the heavy storm, prompting immediate technical checks to identify the source of the fault.
According to the company, engineers traced the problem to a section approximately 14.9 kilometres from the Ikeja West (Ayobo) end of the transmission line. A detailed inspection later revealed that Tower 515 had collapsed midway due to the impact of the storm.
TCN noted that its technical team has begun dismantling the damaged structure while efforts are underway to mobilise equipment and personnel for the reconstruction of the fallen tower.
The Ikeja West–Osogbo 330kV transmission line serves as a critical backbone of Nigeria’s national grid, facilitating the movement of bulk electricity from Lagos to major parts of the South-West. Disruptions along the route typically lead to power supply challenges, particularly in heavily populated areas.
Despite the setback, the transmission company assured Nigerians that alternative transmission lines are currently being used to minimise the impact on electricity supply.
“Engineers are already working to dismantle the collapsed tower while arrangements are being made for its re-erection. We are also utilising available alternative lines to ensure continued bulk power evacuation,” the company stated.
By declaring force majeure, TCN indicated that the disruption resulted from circumstances beyond its control, specifically extreme weather conditions, which temporarily limit its ability to fully transmit electricity through the affected corridor.
The incident has once again drawn attention to the vulnerability of Nigeria’s power infrastructure, particularly during periods of intense rainfall and storms. Experts have repeatedly warned that ageing transmission facilities and limited redundancy leave the grid susceptible to weather-related disruptions.
TCN, which manages the country’s national transmission network, plays a crucial role in delivering electricity generated by power plants to distribution companies. However, recurring line trips and infrastructure failures continue to hamper stable power supply nationwide.
The Ikeja West substation, one of the largest in Nigeria, serves as a major electricity hub for Lagos and nearby states. Any disruption affecting lines connected to the facility often has widespread consequences for homes, businesses, and industries.
While restoration work is ongoing, TCN assured electricity consumers that updates would be provided as engineers work to fully restore normal transmission capacity.
