By Ikugbadi Oluwasegun
The Nigerian Independent System Operator (NISO) has attributed a drop in power supply in Abuja, Lagos and Northern states to multiple transmission line failures across the country.

In a statement, NISO says it has repeatedly curtailed allocations to distribution companies in order to keep the national grid operating safely.
The grid Operator notes that the Shiroro to Mararaba line went down from August 24 to 26, cutting a key supply route to Abuja and the north. In addition to this were two more lines; Shiroro to Mando and Mando to Jos, that tripped off at the same time.
The backup circuits linking Apir and Lafia had already been out of service for an extended period due to faults, the failure left Jos and the North East with almost no transmission supply.
The System Operator further says a bus separation at the Mando substation disrupted the network, prompting power cuts to Kano, Kaduna, Jos, Yola, and other northern areas.
NISO assures that it will continue to re-dispatch generation and adjust allocations to protect the wider network from bigger disturbances.