The Transmission Company of Nigeria on Sunday said the national power grid has been restored following Saturday’s collapse.

The TCN Public Affairs General Manager, Ndidi Mbah described the collapse as partial, saying that “there was a partial disturbance of the grid at about 15.09Hrs yesterday, 6th July 2024.”

According to her, the incident “brings to three, the partial grid disturbances, with one total disturbance this year.”

According to the TCN spokesperson, the unplanned tripping of three power-generating station units is suspected to have caused the grid collapse. This action abruptly removed 313 MW from the grid, causing system instability that resulted in the loss of bulk supply to a portion of the national grid.

“Meanwhile, the system operator reacted to the sudden drop in generation which led to a dip in frequency by islanding a section of the grid which includes the Ibom Power Station through which the company continued to feed Uyo, Aba, Itu, Eket, Calabar, etc. even when the other section of the grid had no supply.

“Also, the operators commenced grid restoration efforts immediately after the incident. At about 21.57 hrs yesterday, the entire part of the grid that was affected by today’s incident was successfully restored,” Mbah said.

Consumers of electricity have, however, denounced the nation’s power grid’s frequent failures.

A nationwide blackout in the states and the Federal Capital Territory (FCT), Abuja, resulted from the grid collapse.

The first national grid failure of 2024 occurred on February 4, and it was followed by a nationwide outage on March 28 and a second system failure on April 15.