KEY POINTS
- TCN declared force majeure after a rainstorm collapsed a transmission tower on the Lagos–Osun line
- The incident disrupted a major power corridor, though alternative lines are being used to reduce outages
- The event highlights ongoing concerns about ageing infrastructure and the grid’s vulnerability to extreme weather
The Transmission Company of Nigeria, TCN, has declared a force majeure following the collapse of a major transmission tower along the Ikeja West–Osogbo 330kV line after a severe rainstorm.
The incident, which occurred on April 16, 2026, affected a critical electricity transmission route responsible for delivering bulk power across parts of South-West Nigeria. The declaration of force majeure indicates that the disruption was caused by circumstances beyond the company’s control, in this case, extreme weather conditions.
In a statement signed by its General Manager of Public Affairs, Ndidi Mbah, the company explained that the transmission line tripped during the storm due to a fault detected approximately 14.9 kilometres from the Ikeja West (Ayobo) end.
Tower collapse disrupts strategic electricity backbone
Further inspection by maintenance crews revealed that Tower 515 along the route had suffered structural failure, collapsing at its midsection during the storm. The damaged line is a vital component of Nigeria’s national grid, linking Lagos to other parts of the South-West and enabling the evacuation of bulk electricity to distribution networks.
The company said emergency response efforts have been activated, with engineers already working to dismantle the damaged structure while mobilising materials and personnel for its reconstruction.
Despite the disruption, TCN assured electricity consumers that steps are being taken to minimise the impact on power supply by rerouting electricity through alternative transmission lines that remain operational.
The Ikeja West transmission hub, one of the largest in the country, plays a central role in distributing electricity within Lagos and neighbouring states, making any fault along its connected lines significant for homes and industries.
The latest development has once again highlighted the vulnerability of Nigeria’s power infrastructure to adverse weather conditions. Experts have repeatedly warned about the ageing state of transmission facilities and the increasing frequency of extreme weather events linked to climate variability.
Nigeria’s national grid continues to face persistent challenges, including system disturbances, line trips, and limited capacity, despite ongoing upgrade efforts. Stakeholders have called for sustained investment in more resilient infrastructure capable of withstanding environmental pressures.
TCN reiterated its commitment to restoring full transmission capacity as quickly as possible and promised to provide updates as repair works progress.
