Power outage: TCN disputes Ikeja Disco’s claim of grid instability in Lagos

The Transmission Company of Nigeria (TCN) disputes Ikeja Electric’s (IKEDC) claim that outages on November 3 and 4 were caused by grid instability. TCN says reduced supply resulted from lower generation, citing gas constraints at thermal power stations and reduced hydroelectric output, as explained by system operator NISO. Of interruptions on feeders serving IKEDC on November 1 and 2, 68% were frequency-control load shedding due to low generation, 26% involved IKEDC’s network faults or failure to follow allocations, and 6% were related to TCN maintenance or transmission limitations. Among 46 interruptions on the 33kV feeders cited by IKEDC, 29 stemmed from low generation and 14 were attributed to IKEDC.