The Transmission Company of Nigeria (TCN) has announced that instability in the national grid is expected to continue as repairs are carried out following another shutdown.
This latest incident occurred on Thursday morning and resulted in widespread power outages across the country.
According to Ndidi Mbah, General Manager of Public Affairs at TCN, the grid disturbance occurred at approximately 11:29 am due to a sudden frequency surge from 50.33Hz to 51.44Hz.
This surge was triggered by issues at one of the company’s substations, which was subsequently shut down to prevent further complications.
“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.
“The frequency spike was caused by issues encountered at one of our substations, which had to be shut down to prevent further complications.
“Recovery efforts began immediately, and the Abuja Axis was restored within 28 minutes. Recovery is still ongoing,” she said.
According to Ndidi Mbah, TCN is currently undertaking significant repair work on several critical transmission lines and substations.
These projects include upgrades to the 330kV transmission lines along the Shiroro-Mando axis, major upgrades at the Jebba transmission substation, and restoration of the second Ugwuaji-Apir 330kV transmission line.
“In addition to this, we are actively engaged in significant repair work on several critical transmission lines and substations.
“This includes the 330kV transmission lines along the Shiroro-Mando axis, major upgrades at the Jebba Transmission Substation, and the restoration of the second Ugwuaji-Apir 330kV transmission line.
“Furthermore, following the submission of the investigative report on the causes of previous grid collapses, we have begun addressing the identified weaknesses in the transmission system,” she said.
Mbah reaffirmed TCN’s commitment to improving electricity supply reliability, recognizing its crucial role in supporting Nigeria’s socio-economic growth.
“Efforts are being made to close the gaps highlighted in the report and to enhance the overall stability and resilience of the grid. These efforts include both technical upgrades and strategic interventions based on the committee’s recommendations.
“However, it is important to note that while these repairs and improvements are underway, some degree of instability in the system is likely to persist until all major works are completed.
“We acknowledge the impact of these disruptions and ask for the understanding and patience of the public during this challenging period,” she added.
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