The Transmission Company of Nigeria (TCN) has successfully restored both Alaoji–Owerri 132kV Transmission Lines 1 and 2 to service, ending a disruption that had affected bulk electricity supply to Imo State, Bayelsa State, and parts of Rivers State.
TCN’s General Manager, Public Affairs, Ndidi Mbah, disclosed in a statement that the two lines were re-energised at 7:05 p.m. and 7:06 p.m., respectively on Wednesday, 24th June 2026, following round-the-clock repair efforts by TCN’s maintenance crew.
Recall that the transmission lines tripped on Tuesday, 23rd June 2026. Mbah said upon identification of the fault location, TCN’s maintenance crew immediately mobilized to the site and commenced repair works.
She said following the successful repair of the fault on Line 1, the line was restored to service at approximately 7:25 p.m. on Tuesday, 23rd June 2026, enabling partial restoration of bulk electricity transmission to Imo State, Bayelsa State (Yenagoa), and parts of Rivers State (Ahoda).
The GM explained that to facilitate the safe repair of Line 2, it became necessary to temporarily de-energize Line 1. “This was because the close proximity of the two high-voltage transmission lines could induce electromagnetic induction on the faulty line when the adjacent line remained energized, thereby posing a safety risk to TCN ‘s maintenance engineers,” she said.
Mbah revealed that the temporary outage of Line 1 was approved by the Nigerian Independent System Operator (NISO) and undertaken with the concurrence of the Enugu Electricity Distribution Company (EEDC) and the Port Harcourt Electricity Distribution Company (PHEDC). This precautionary measure provided the safe working space required for TCN engineers to complete repairs and restore Line 2 to service.
With the successful restoration of both transmission lines, the Alaoji–Owerri transmission corridor is now fully operational. EEDC and PHEDC can now offtake full load for onward distribution to their customers.
“TCN appreciates the patience and understanding of electricity consumers affected by the outage and regrets the inconvenience caused. The Company remains committed to maintaining a reliable and efficient transmission network for the evacuation and delivery of bulk electricity across the country,” the statement said.
