Electricity consumers in Lagos have been notified of expected daily disruptions in power supply as the Transmission Company of Nigeria (TCN) begins a major maintenance project on the Omotosho–Ikeja West 330kV transmission line.
The TCN, in a public statement, announced that the Nigerian Electricity Regulatory Commission (NERC) and the National Independent System Operator (NISO) have both approved the infrastructure upgrade, describing it as critical for enhancing grid performance.
According to Ndidi Mbah, TCN’s General Manager, Public Affairs, “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.”
She explained that during the upgrade period, power would be restored at the end of each workday. “All other circuits will remain operational to ensure a stable power supply to the Lagos complex during the exercise,” Mbah added.
TCN also noted that the upgrade would facilitate the full activation of the Supervisory Control and Data Acquisition (SCADA) system, aimed at enabling real-time monitoring and more efficient grid management.
Distribution companies notify electricity customers
Both Ikeja Electric and Eko Electricity Distribution Company (EKEDC) have issued alerts to their customers, warning of intermittent power supply during the TCN’s maintenance window.
In its public 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 statement added.
EKEDC issued a similar advisory:
“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.”
The announcement comes as Nigerians continue to grapple with power supply challenges and rising energy costs. However, TCN insists that the ongoing infrastructure investments are necessary steps toward stabilizing and modernizing the national grid.
Residents and businesses are advised to make arrangements ahead of the daily maintenance hours to manage the impact of the expected outages.
