The Nigerian Electricity Regulatory Commission (NERC) has released its September 2025 Operational Performance Factsheet, detailing the state of power generation and grid performance across the country.

According to the report, Nigeria’s grid-connected power plants recorded a Plant Availability Factor (PAF) of 38%, meaning that out of the total installed capacity of 13,625 megawatts (MW), an average of 5,200 MW was available for dispatch during the month. This marked a slight improvement of two percentage points compared with August 2025.

The Average Load Factor stood at 78%, with plants generating an average of 4,091 megawatt-hours per hour (MWh/h) indicating that more than three-quarters of available capacity was utilised.

Hydropower and thermal plants dominated the energy mix, with the top ten producers including Zungeru, Egbin, Kainji, Jebba, and Delta accounting for 81% of total electricity generated.

Zungeru maintained full operational capacity, while Egbin and Kainji posted strong load factors of 90% and 91% respectively.

The report also assessed grid stability, noting that average lower grid voltage (304.63kV) and upper grid voltage (347.80kV) exceeded prescribed limits.

Meanwhile, frequency stability remained largely within safe operating bands, with grid frequency staying in the acceptable range 48.19% of the time.

NERC highlighted improvements in grid coordination but stressed the need for continued investment in maintenance and generation reliability.

The regulator added that data transparency through monthly factsheets forms part of its commitment to strengthen accountability in the Nigerian Electricity Supply Industry (NESI).

The commission said the findings will help guide operators, policymakers, and investors in making data-driven decisions to enhance power reliability and ensure more efficient grid management across the country.