Lagos To Be Thrown into Darkness As TCN Begins 25-Day Maintenance

Lagos residents are set to experience intermittent blackouts as the Transmission Company of Nigeria (TCN) begins a 25-day maintenance operation on the Omotosho–Ikeja West 330kV transmission line.

According to a statement from TCN’s General Manager of Public Affairs, Ndidi Mbah, the work—approved by the Nigerian Electricity Regulatory Commission (NERC) and the National Independent System Operator (NISO)—involves installing Optical Ground Wire (OPGW) fibre cable to enhance grid monitoring and control through the SCADA system.

The maintenance will run daily from 8:00 AM to 5:00 PM, starting July 28 to August 21, 2025. TCN said power will be restored through the affected line after each day’s work, and other circuits will remain active to help stabilize supply to Lagos.

Despite these assurances, electricity distribution companies have warned customers to prepare for disruptions.

Ikeja Electric, in a notice, said, “Customers may experience intermittent power supply and load shedding across our network during the planned TCN outage.”

Eko Electricity Distribution Company (EKEDC) issued a similar advisory, stating the work would lead to outages and load management across its coverage areas.

While the upgrade aims to improve long-term power grid reliability, Lagos residents are urged to plan for temporary interruptions during the maintenance window.