How national grid collapse triggered widespread darkness
•Power supply restored to affected areas — TCN
NIGERIANS were thrown into darkness, yesterday, as the national grid suffered its second national grid disruption in 2025.
It was gathered that some Southern states, including Lagos and Abuja did not have supply for a greater part of the day.
The Nigeria National Grid, in a brief statement on X (formerly twitter), stated: “There was a grid disturbance before noon today. Parts of the country experienced an outage. Further information shortly.”
The checks indicated that the partial collapse was caused by the stripping of the Omotosho-Ikeja West 330KV line.
National power grid supply dropped by 68.3 percent from 4,109.56 Megawatts as of 11am to 1,302MW as of 12pm.
The grid data posted by the National System Operator, showed that as of 11am, the largest power producer, Egbin Power had 617MW on the grid, but recorded zero production an hour later.
Also, Azura-Edo IPP which generated 420MW as of 11am also dropped to zero an hour later. The grid however began recovering two hours later with more plants restarting operations.
Data as of 4pm showed that 15 plants had returned to the grid with Delta Power Plant as the largest generator at 454MW.
Earlier, electricity distribution companies had informed customers of the drop in power supply, blaming insufficient supply from the grid.
In a message to customers, Kaduna Electric wrote: “We wish to sincerely apologise to our customers in Sokoto, Zamfara and Kebbi states for the loss of power supply since morning today. This is as a result of the tripping of the 330kV Kainji - Birnin Kebbi line at about 11:34 am.
“While awaiting the restoration of the line back into circuit by the TCN team, we regret all inconveniences this may have caused”.
Also, Abuja Electricity Distribution Company, AEDC, wrote: “We regret to inform you that a system disturbance occurred on the national grid at 11:34 am today causing power outage across our franchise areas.
“While gradual restoration of power supply has commenced, please be assured that we are working closely with relevant stakeholders to fully restore electricity as soon as the grid is stabilized. Thank you for your understanding and patience as we work to serve you better”.
However, the spokesperson of the Transmission Company of Nigeria, TCN, Ndidi Mba, said the supply has been restored to the affected areas.
In a telephone interview with Vanguard, Mba, said: “It was not system collapse. The stripping of the Omotosho-Ikeja West 330KV line affected supply to some southern states. The situation has been restored.
Culled from Vanguard

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