The Transmission Company of Nigeria, TCN, says it has successfully restored the national grid following a system disturbance at 4:28 p.m. on Thursday.
In a statement on Friday evening, the TCN said full recovery was achieved by 10:00 p.m. that same day.
The TCN said that a report from the National Control Centre, NCC, in Osogbo, indicated that the system disturbance was triggered by a significant reduction in generation capacity, primarily due to gas constraints.
It noted that the reduction led to a rapid decline in system frequency, creating a sudden grid imbalance.
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It added that 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.
“The grid has, however, since been recovered and is stable, and is currently transmitting all the generated power to distribution load centres nationwide.
“TCN emphasizes its 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 minimize the impact and swiftly restore the grid to normal operation,” the statement partly read.
Thursday’s incident marked the second time the national grid has collapsed this year following an earlier collapse on February 4 which threw the nation into darkness.
The national grid also collapsed multiple times in 2023. It collapsed twice in September 2023 alone and once in December that year.
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