TCN announced the outage in a statement by its Public Relations Officer, Mr Celestina Osin, in Lagos.
The statement said the areas that would be affected include Ikoyi, Victoria Island, Alagbon, Apapa, Ijora, Surulere, Itire, Oshodi, Mushin, Nigerian Air Force Base, Shogunle and all their environs.
It said that there was an urgent need by the company to disrupt electricity supply to them from the Akangba 132KV Transmission Substation on July 18, from 10 a.m. to 1 p.m.
The statement said the reason for the planned outage was to enable the MBH contractor carry out important repairs on the Itire 132KV Transmission Line 1 and the Ojo 132KV Transmission Line 2.
It noted that it was from the lines that the areas were fed electricity.
“During the period the outage will last, the 4×90 MVA power transformers and another 150MVA power transformer will be out of service at the Akamgba 132KV Substation to provide a safe working space for the workers.
“We promise to restore supply to all the affected areas as soon as the work is concluded.
“We sincerely apologise for the short notice for the outage and regrets inconveniences this will cause all that will be affected,’’ the statement said.