Nigeria’s power transmission company, the Transmission Company of Nigeria (TCN), on Sunday declared a force majeure on the Ikeja West–Osogbo 330kV transmission line after a severe rainstorm knocked down a critical tower, raising fresh concerns about the vulnerability of Nigeria’s power infrastructure to extreme weather.
In technical terms, force majeure refers to an unforeseen event beyond one’s control—such as a storm or disaster—that prevents the fulfillment of obligations.
The development, which occurred on Thursday, April 16, 2026, affected one of the major transmission corridors responsible for evacuating bulk electricity across parts of the South-West.
A statement issued by the General Manager for Public Affairs, Ndidi Mbah, indicated that the transmission line tripped during the storm due to a fault traced to a specific section of the network.
“The Transmission Company of Nigeria wishes to inform the public that a force majeure has occurred on the Ikeja West–Osogbo 330kV transmission line following a severe rainstorm on Thursday, April 16, 2026,” the statement read.
It added, “The line tripped during the storm due to a fault, which was detected at approximately 14.9 kilometres from the Ikeja West (Ayobo) end of the transmission line.”
According to TCN, a detailed inspection by its maintenance team revealed that one of the transmission towers along the route suffered structural failure.
“Further inspection by TCN maintenance crews revealed that Tower No. 515 collapsed during the storm, with the structure giving way at its midsection. While TCN is mobilising materials and personnel for the re-erection of the fallen tower, efforts are currently ongoing by its engineers to dismantle the affected tower,” the company disclosed.
The Ikeja West–Osogbo 330kV line is a strategic backbone of Nigeria’s national grid, linking Lagos—the country’s commercial hub—to other parts of the South-West and beyond. Any disruption along this route often has ripple effects on power supply, particularly in densely populated urban centres.
TCN said it has activated emergency response measures, including the mobilisation of materials and personnel to the site, to fast-track repairs and restore full transmission capacity.
The company assured electricity consumers that steps are being taken to minimise the impact of the outage by relying on alternative transmission routes.
“We assure the public that we will work assiduously to restore flexibility and redundancy in that corridor, as an alternative line remains in service evacuating bulk power. Updates will be provided as work progresses,” the statement concluded
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