The Transmission Company of Nigeria (TCN) has attributed Thursday’s national grid collapse, the second in three days, to a sudden frequency rise from 50.33Hz to 51.44Hz.
This was disclosed by TCN spokesperson, Ndidi Mbah.
The disturbance began at 11:29 a.m., leading to extensive outages.
Efforts to restore the grid commenced swiftly, with the Abuja region recovering within 28 minutes, while other areas remain in the process of restoration.
The TCN explained that the frequency surge originated from a substation issue, prompting a temporary shutdown to prevent further damage.
As part of ongoing infrastructure upgrades, the TCN is currently working on the 330kV transmission lines along the Shiroro–Mando route, significant improvements at the Jebba Substation, and repairs on the Ugwuaji–Apir 330kV transmission line.
Following a recent report pinpointing vulnerabilities in the grid, the TCN is implementing recommended upgrades to enhance stability.
While repair efforts continue, the TCN cautions that some instability may persist.
The company has called for public patience, acknowledging the importance of stable power in Nigeria’s socio-economic landscape and promising measures to ensure long-term grid reliability.
