The Transmission Company of Nigeria (TCN), has announced the successful restoration of the Alaoji–Owerri 132kV Transmission Lines 1 and 2, bringing full operational capacity back to the transmission corridor serving parts of Nigeria’s South-East and South-South regions.
In a statement, TCN’s General Manager, Public Affairs, Ndidi Mbah, said the two transmission lines were energised at 7:05 p.m. and 7:06 p.m. respectively on Wednesday, June 24, 2026, following the completion of repair works on faults that caused both lines to trip on Tuesday, June 23.
According to Mrs. Mbah, TCN’s maintenance team swiftly mobilised to the fault location immediately after the outage was detected and commenced repairs.
She explained that Line 1 was initially restored at about 7:25 p.m on Tuesday, enabling partial restoration of bulk electricity supply to Imo State, Yenagoa in Bayelsa State, and parts of Rivers State, including Ahoada.
“However, to ensure the safe repair of Line 2, TCN temporarily de-energised Line 1. The close proximity of the two high-voltage lines could have resulted in electromagnetic induction on the faulty line, posing a serious safety risk to maintenance personnel,” she said.
Mrs. Mbah added that the temporary shutdown of Line 1 was approved by the Nigerian Independent System Operator (NISO) and carried out with the concurrence of the Enugu Electricity Distribution Company (EEDC) and the Port Harcourt Electricity Distribution Company (PHEDC).
She further explained that the precautionary measure provided a safe working environment for engineers to complete repairs on Line 2 and restore the line to service.
“With both transmission lines now fully operational, the Alaoji–Owerri transmission corridor has resumed normal operations, allowing EEDC and PHEDC to receive and distribute full electricity load to customers within their franchise areas,” she stated.
Mbah expressed appreciation to electricity consumers affected by the outage for their patience and understanding, while reaffirming TCN’s commitment to maintaining a reliable and efficient transmission network for the evacuation and delivery of bulk electricity nationwide.
