The Transmission Company of Nigeria (TCN) has claimed that power in the Abuja Axis was restored within minutes after a national grid disturbance occurred at around 11:29AM on Thursday.
It added that efforts were underway to restore electricity in other affected parts of the country.
The grid disturbance resulted from a sudden rise in frequency, jumping from 50.33Hz to 51.44Hz.
According to TCN in a statement signed by Ndidi Mbah, General Manager, Public Affairs, the spike was triggered by an issue at one of its substations, which “had to be shut down to prevent further complications.”
TCN’s recovery initiatives include extensive repairs to critical infrastructure, particularly on the 330kV Shiroro–Mando line, major upgrades at the Jebba Transmission Substation, and the restoration of the second Ugwuaji–Apir 330kV transmission line.
Following recent investigations into previous grid collapses, TCN has also begun implementing strategic measures to reinforce grid stability.
“Efforts are being made to close the gaps highlighted in the report, and to enhance the overall stability and resilience of the grid,” the company explained, referring to the committee’s recommendations.
Despite these efforts, TCN anticipates “some degree of instability in the system is likely to persist until all major works are completed.”
The company called for public understanding and patience during this challenging period.
Reaffirming its commitment to reliable electricity, TCN assured that “all necessary measures are being taken to ensure the grid’s long-term stability,” recognising the importance of stable power for Nigeria’s socio-economic growth.
The company also continues to address infrastructure damage, such as vandalised transmission lines, as part of its broader efforts to safeguard national power supply.
The statement reads, “The Transmission Company of Nigeria (TCN) wishes to inform the public that the national grid experienced a disturbance at approximately 11:29 AM this morning, caused by a sudden rise in frequency from 50.33Hz to 51.44Hz. Recovery efforts began immediately, and the Abuja Axis was restored within minutes. Recovery is still ongoing.
“The frequency spike was caused by issues encountered at one of TCN’s substations, which had to be shut down to prevent further complications. In addition to this, TCN is actively engaged in significant repair work on several critical transmission lines and substations.
“This includes the 330kV transmission line along the Shiroro–Mando axis, major upgrades at the Jebba Transmission Substation, and the restoration of the second Ugwuaji–Apir 330kV transmission line.”
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