TCN Restores Alaoji–Owerri Transmission Lines, Reconnects Full Power Supply to Affected States
Oru Leonard
The Transmission Company of Nigeria (TCN) has successfully restored the Alaoji–Owerri 132kV Transmission Lines 1 and 2 to service, bringing full electricity transmission capacity back to parts of Imo, Bayelsa and Rivers states.
In a statement issued on Wednesday, by the General Manager, Public Affairs, Ndidi Mbah, TCN disclosed that the two transmission lines were energized at 7:05 p.m. and 7:06 p.m., respectively, following the completion of repair works on faults that caused both lines to trip on Tuesday, June 23, 2026.
According to the company, its maintenance team immediately mobilised to the fault location after identifying the source of the outage. Following repairs on Line 1, the transmission line was restored at about 7:25 p.m. on Tuesday, enabling partial restoration of electricity supply to Imo State, Yenagoa in Bayelsa State, and parts of Rivers State, including Ahoda.
TCN explained that while repairs on Line 2 were ongoing, it became necessary to temporarily de-energise Line 1 to ensure the safety of maintenance personnel. The company noted that the close proximity of the two high-voltage transmission lines could result in electromagnetic induction on the faulty line if the adjacent line remained energised, creating a potential hazard for engineers working on the repairs.
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).
With the successful restoration of both lines, TCN said the Alaoji–Owerri transmission corridor is now fully operational, allowing EEDC and PHEDC to offtake full electricity load for distribution to customers within their franchise areas.
The company expressed appreciation to affected consumers for their patience and understanding during the outage and reaffirmed its commitment to maintaining a reliable and efficient transmission network for the delivery of bulk electricity nationwide.
