Lagosians are set to endure long hours in darkness as the Transmission Company of Nigeria (TCN) begins a 25-day maintenance of the Omotosho – Ikeja West 330kV power line.

Naijaonpoint reports that this was communicated in a statement by the TCN’s General Manager (GM), Public Affairs, Ndidi Mbah.

According to the transmission company, the Nigerian Electricity Regulatory Commission (NERC) and the National Independent System Operator (NISO) have approved the “critical infrastructure upgrade.”

Mbah said: “The upgrade involves the installation of Optical Ground Wire (OPGW) 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 stated that, “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.”

The upgrade will “enable full operationalization of the Supervisory Control and Data Acquisition (SCADA) system” and enhance the real-time monitoring and management of the power grid, the company stated.

Also, the Eko Electricity Distribution Company (EKEDC) and the Ikeja Electricity Distribution Company (Ikeja Electric) have informed their customers about the planned upgrade and intermittent blackout.

Ikeja Electric said: “Dear Esteemed Customer. Please be informed that the Transmission Company of Nigeria (TCN) 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.”

On its part, EKEDC wrote: “Dear Valued Customer, Kindly be informed that there will be a planned outage by our partner, Transmission Company of Nigeria (TCN).

“Date: Monday, 28th July to Thursday, 21st August, 2025.

“Time: 08:00 – 17:00 hrs (daily).

“Reason: To enable works to be safely carried out on the Omotosho – Ikeja West 330kV power line.

“Impact: Intermittent outage and load shedding across our network.
Affected Areas: Across our network coverage.”