TCN: Frequency Rise Responsible For National Grid Collapse 

By: Chioma Eche, Abuja

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The Transmission Company of Nigeria TCN has discovered that the collapse of the national grid on Thursday, 7th of November, 2024 was caused by a sudden rise in frequency from 50.33Hz to 51.44Hz.

The TCN General Manager, Public Affairs, Ndidi Mbah, who made this known in a statement, said that “the Transmission Company of Nigeria wishes to inform the public that the national grid experienced a disturbance at approximately 11:29 a.m. caused by a sudden rise in frequency from 50.33Hz to 51.44Hz”

She noted that recovery efforts began immediately, and the Federal Capital Territory, (FCT) Abuja, was restored within 28 minutes.

“Recovery is still ongoing. The frequency spike was caused by issues encountered at one of our substations, which had to be shut down to prevent further complications”

“In addition to this, we are actively engaged in significant repair work on several critical transmission lines and substations,” she said.

According to her, the incident also 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.

Mrs Mbah explained that efforts are being made to close the gaps highlighted in the investigative report of the weakness of the grid to enhance stability and resilience.

“These efforts include both technical upgrades and strategic interventions based on the committee’s recommendations,” she added.

She noted 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 stressed that the company remains committed to improving the reliability of electricity supply, recognising the vital role that stable power plays in Nigeria’s socio-economic development.

“We acknowledge the impact of these disruptions and ask for the understanding and patience of the public during this challenging period.”

She said the company remains committed to improving the reliability of electricity supply, recognising the vital role that stable power plays in Nigeria’s socio-economic development.

“We assure the public that all necessary measures are being taken to ensure the grid’s long-term stability, in line with the recommendations of the investigative committee, while also addressing infrastructure damage such as vandalised transmission lines”.

Nigerians were on Thursday, 7th of November morning at 11:29 am
thrown into darkness due to system disturbance.

 

Olusola Akintonde

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