In a statement issued by the General Manager, Public Affairs, Mrs Ndidi Mbah, who confirmed this, stated that the system collapse occurred due to a drop in system frequency.
“The partial system disturbance did not affect part of the grid such as Afam complex, Alaoji, Ikot Ekpne, Odukpani and Calabar axis, which means that electricity supply to this area was not interrupted by the incident,” the statement said.
“some units from a particular generating station tripped suddenly which caused an initial loss of 402 megawatts (MW) from the grid that finally collapsed part of the national grid. This caused a sabotage shortcoming which further caused the pulling out a total of 3,560MW from the grid that finally collapsed part of the national grid.”
“By 6.57 pm yesterday (Monday) the national grid was fully recovered and functioning,” the statement read.