TCN announces restoration of national grid after system disturbance

The Transmission Company of Nigeria (TCN) has said that the national grid has been restored after a system disturbance, which occurred on Thursday.

Ndidi Mbah, TCN’S General Manager Public Affairs, made this known in a statement in Abuja on Friday, saying that the grid disturbance occurred at 4:28pm with full recovery achieved by 10pm on the same day.

Mbah said, according to a report from the National Control Centre in Osogbo, the Osun State capital, the system disturbance was triggered by a significant reduction in generation capacity, primarily due to gas constraints.

She said: “This reduction led to a rapid decline in system frequency. This created a sudden imbalance in the grid.

“The imbalance in grid stability was exacerbated by the sudden tripping of Egbin generation turbine 3, resulting in an additional loss of 167MW load and the subsequent collapse of the grid.”

Mbah said the grid had since been recovered and was stable, adding that it was currently transmitting all the generated power to distribution load centres nationwide.

She expressed TCN’s unwavering commitment to addressing grid challenges and actively working to mitigate disruptions.

“In instances where challenges extend beyond TCN’s control, the company collaborates with other stakeholders in the power sector value chain to minimise the impact, and swiftly restore the grid to normal operation,” she added.