Residents of Lagos State and parts of Ogun State are expected to experience daily power disruptions as the Transmission Company of Nigeria (TCN) begins a 25-day maintenance exercise on the Omotosho–Ikeja West 330kV transmission line.
The maintenance, which commences today, Monday, July 28, 2025, will last until August 21, and will involve a daily shutdown of power supply from 8:00 a.m. to 5:00 p.m.
Speaking during a live broadcast on TVC, ANED Chief Executive Officer, Sunday Oduntan, said the power disruption would affect the whole of Lagos, some parts of Ogun like Sagamu, Ogijo, Abeokuta and others.
He explained that the power system would be shut down for safety reasons throughout the upgrade period.
In a statement posted on its official ‘X’ handle, TCN revealed that the Nigerian Electricity Regulatory Commission (NERC) and the Nigeria Independent System Operator (NISO) granted it the approval for a critical infrastructure upgrade in one of its 330kV lines, wheeling bulk power to Lagos and its environs.
“The upgrade involves the installation of Optical Ground Wire fibre cable on the Omotosho/Ikeja West 330kV transmission line, scheduled from July 28, 2025, to August 21, 2025, from 8 am to 5 pm,” TCN said in a statement by its General Manager, Public Affairs, Ndidi Mbah.
During the period, the agency said “power will be restored through the line after each day’s work; all other circuits will remain operational to ensure a stable power supply to the Lagos complex during the exercise.”
TCN also stated that, upon completion, the upgrade will enable full operationalisation of the Supervisory Control and Data Acquisition (SCADA) system, enhancing real-time monitoring and management of the power grid.
Meanwhile, distribution companies have also issued notices to customers, informing them of expected interruptions.
In a public notice, Ikeja Electricity Distribution Company (Ikeja Electric) said: “Please be informed that the Transmission Company of Nigeria will carry out scheduled maintenance on the Omotosho-Ikeja West 330kV transmission line from Monday, July 28, to Thursday, August 21, 2025, between the hours of 8:00 AM and 5:00 PM daily.
“During this period, customers may experience intermittent power supply and load shedding across our network due to the planned TCN outage. We sincerely regret any inconvenience this may cause.”
Eko Electricity Distribution Company (EKEDC) also notified its customers saying, “Kindly be informed that there will be a planned outage by our partner, Transmission Company of Nigeria (TCN), from Monday, 28th July to Thursday 21st August, 2025 between 08:00- 17:00 hrs daily. This is to enable work to be safely carried out on the Omotosho/Ikeja West 330kV poweline.”
While apologising for the inconvenience this may cause, the utility added the impact would result in intermittent outage and load shedding across its network.
