TheDiggerNews
Abuja: The Nigerian Independent System Operator (NISO) has announced that a comprehensive investigation is underway to determine both the root and contributory causes of the recent grid disturbance.
The management of NISO made this known in a statement in Abuja on Friday.
It said:”NISO wishes to inform the public that at approximately 12:40 pm on Friday, the national grid experienced a system-wide disturbance, which resulted in a total outage across the interconnected network.”
According to the operator, preliminary operational reports indicate that the disturbance was associated with the simultaneous tripping of multiple 330 kilovolt (KV) transmission lines alongside the disconnection of some grid-connected generating units.
”These events collectively contributed to the system’s collapse at the time indicated.
”Following the outage, system restoration activities commenced at about 13:15pm, in accordance with established grid restoration and recovery procedures.
”As of the time of this update, electricity supply has been successfully restored to Abuja, Osogbo, Benin, Onitsha, Sapele, Jebba, Kainji, Shiroro, and parts of Lagos,”it said.
The operator also said that restoration efforts were continuing progressively in other parts of the country.
The operator, however, said that full restoration and stabilisation of the grid remained a top operational priority.