Electricity supply disruptions affected parts of Lagos, Abuja and Ogun State on Monday as Nigeria’s power generation plunged from 3,840 megawatts (MW) at 7 a.m. to 476.70MW by 1 p.m. Nigerian
Data on the Nigerian Independent System Operator (NISO) portal showed that generation fell by 3,363.30MW, representing an 87.59 per cent decline, with the sharp drop beginning around 12:40 p.m.
The decline left several major power plants, including Egbin, Jebba, Shiroro and Kainji, recording zero output. Only a handful of generating stations, including Odukpani, Omotosho and Sapele, continued supplying electricity.
Consumers in different locations reported power outages on social media between about 12:45 p.m. and 1:20 p.m.
However, NISO denied that the incident amounted to a national grid collapse, saying there was no system-wide disturbance.
The operator reportedly attributed the disruption to possible localised faults and equipment tripping, adding that its technical team would investigate the abnormalities
Meanwhile, electricity distribution companies reported supply challenges across their networks.
Ikeja Electric said customers in parts of Lagos were experiencing fewer hours of electricity because the amount of power allocated to its network from the national grid had reduced.
In Abuja, the Abuja Electricity Distribution Company attributed outages affecting areas including Life Camp Extension, Kado Fish Market and Idu Karmo to a technical fault.
In Ogun State, the Ibadan Electricity Distribution Company reported restrictions on the Ota/Papalanto/Abeokuta 132kV transmission network, reducing the electricity available to feeders serving areas such as Ota, Ifo and Abeokuta.
It remains unclear whether all the reported outages were directly connected to the sharp decline in national electricity generation, as the distribution companies cited different causes for the disruptions.