TCN Restores Alaoji-Owerri 132KV Transmission Lines  One And Two, Explains Why Lines Were Deactivated

The Transmission Company of Nigeria (TCN) has successfully restored service to the Alaoji–Owerri 132kV Transmission Lines 1 and 2.

The two lines were energized at 7:05 p.m. and 7:06 p.m., respectively, today, Wednesday, 24th June 2026.

The transmission lines tripped on Tuesday, 23rd June 2026. Upon identification of the fault location, TCN’s maintenance crew immediately mobilized to the site and commenced repair works.

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).

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.

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, said a statement by the TCN General Manager, Public Affairs, Ndidi Mbah.

She added that 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.