No grid collapse in Q4 2022 – NERC

The Nigerian Electricity Regulatory Commission (NERC) has said the country did not record any national grid collapse in the fourth quarter of 2022.

The commission stated this in its latest quarterly report.

According to the report, there was an improvement in electricity supply during the highlighted period and the system operator (SO) worked to ensure that there were no grid collapses, which occurred often before the highlighted period. A part of the report stated: “It is noteworthy that there was no grid collapse in 2022/Q4. The Commission, in collaboration with the TCN, will continue to intensify efforts to sustain the improvements in grid stability and prevent system collapses.

“Furthermore, the Commission shall continue to strictly monitor compliance with the system operator’s directives to generators on the free governor and frequency control mode in line with the provisions of the subsisting operating codes in the electricity industry.

“The commission is also exploring options for the enforcement of an under frequency load-shedding scheme instituted to provide an added layer of security for the grid in case of a sudden loss of generation.

“The Transmission Company of Nigeria (TCN) could also be required to undertake a review of the calibration of its relay settings as part of the efforts to increase grid stability.”

The NERC report also notes that the national grid is designed to function within certain stability limits in terms of voltage (330kV±5%) and frequency (50Hz±0.5%).

“So, any deviation from these stability ranges can result in decreased power quality and, in severe cases, cause widespread power outages”, it stated.