Parts of Port Harcourt and its environs have been thrown into darkness following a labour-related incident at the Afam IV Power Station.
The Transmission Company of Nigeria (TCN), in a statement issued on Tuesday, said the disruption began on Monday, September 28, 2026, after members of the National Union of Electricity Employees (NUEE), Rivers State Chapter, opened the Afam–Alaoji 330kV Transmission Line 2 at the Alaoji 330kV Transmission Substation.
According to TCN, the action was connected to an ongoing labour dispute between the management of Afam IV Gas Power Station and NUEE.
The company said the development resulted in the tripping of the 150MVA 330/132kV inter-bus transformer at Afam IV, thereby affecting bulk electricity transmission to parts of Port Harcourt and surrounding areas.
TCN listed the affected transmission facilities as the Port Harcourt Town 132kV Transmission Substation, Elelenwo 132kV Transmission Substation and the 60MVA 132/33kV transformer at the Port Harcourt Mains 132kV Transmission Substation.
The transmission company said it was engaging relevant stakeholders, including the Nigerian Independent System Operator (NISO), to restore the affected facilities as soon as conditions permit safe restoration.
TCN expressed regret over the inconvenience caused to electricity consumers in the affected areas, assuring that further updates would be provided as the situation develops.
