Transmission Company of Nigeria (TCN) has reported the completion of line upgrades and installation of 82 power transformers between January 2024 and November 2025, with support from $1.16 billion in donor funding.
In a detailed scorecard of its achievements under the managing director, Dr Sule Ahmed Abdulaziz, released on Wednesday, the TCN stated that transmission capacity has grown to 8,500MW and that efforts include rehabilitating substations and re-conductoring transmission lines.
TCN added that overall network performance is measured by the electrical energy wheeled through the system. Line upgrades included increasing the Sokoto–Birnin Kebbi line from 70MW to 150MW and the Ikeja West–Alimosho–Ogba–Alausa lines from 120MW to 240MW.
TCN reported completing reconductoring on the Delta–Effurun 132kV line, the Ayede–Eleyele–Jericho line, and the Osogbo–Ede/Iwo 132kV double circuits. Contracts were awarded for 21 additional lines, including the 107km 330kV Onitsha–New Haven line and the 104km Shiroro–Mando 330kV line upgraded to quad conductor. These form part of the Nigerian Electricity Grid Maintenance, Expansion and Rehabilitation Programme (NEGMERP).
TCN commissioned 82 power transformers nationwide from January 2024 to November 2025, adding 8,500.50 MVA to the grid. In the second half of 2025, TCN installed 15 transformers with a capacity of 300 MVA at the Akangba, Lekki, Alagbon, Ikeja West, Osogbo (twice), Ganmo, Jos, Gombe, Kumbotso, Asaba, Oke-Aro, Benin, Alaoji, and Katampe substations. TCN noted that prior installations used up to 150 MVA of capacity and that plans exist for additional 300 MVA units.
SOURCE: LEADERSHIP NEWS PAPER
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