In a statement, TCN explained that the Nigerian Electricity Regulatory Commission (NERC) and the National Independent System Operator (NISO) approved the “critical infrastructure upgrade”.
According to TCN’s General Manager, Public Affairs, Ndidi Mbah, “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.”
The company added 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”.
TCN also stated that the upgrade will “enable full operationalization of the Supervisory Control and Data Acquisition (SCADA) system”, improving real-time monitoring and management of the power grid.
Electricity distribution companies in Lagos, including the Eko Electricity Distribution Company (EKEDC) and Ikeja Electricity Distribution Company (Ikeja Electric), have issued public notices about the scheduled maintenance.
In its notice, Ikeja Electric stated, “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,” the notice added.
EKEDC’s notice read: “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.”
