Mkpoikana Udoma
Port Harcourt — 28 grid-connected electricity generation plants across Nigeria generated an average of 5,329 megawatts, MW, of electricity in March 2025, reflecting a marginal decline of 2% from the 5,435MW recorded in February 2025.
Data on the operational performance of power plants released by the Nigerian Electricity Regulatory Commission, NERC, highlighted that the 28 plants achieved only a 39% availability factor despite their cumulative installed capacity of 13,625MW.
The report showed that larger power plants, including Egbin ST, Delta GS, Kainji, Shell’s Afam VI, Zungeru, Odukpani, Shiroro, Jebba, Okpai, Azura IPP, and Geregu, contributed 3,977MW on average—accounting for 74.6% of the total energy generated in December.
Egbin ST and Kainji emerged as the highest producers, with average outputs of 642MW and 513MW respectively, while Delta followed with 494MW.
Smaller power plants such as Afam I-V, Sapele ST, Olorunsogo NIPP, Omotosho NIPP, Sapele GT NIPP, Ihovbor NIPP, Geregu NIPP, Omotosho, Olorunsogo, Ibom Power, Rivers NIPP, Omoku, Trans Amadi, Paras, Taopex Energy, Mepp, and Dadin Kowa generated a combined average of 1,353MW, representing 25 4% of the total energy output.
However, some plants performed below capacity. For instance, Trans Amadi and Dadin Kowa produced just 4MW and 16MW on average, while Olorunsogo and Alaoji NIPP failed to generate any power during the period, despite its installed capacity of 500MW.
NERC’s data also revealed that the average hourly available capacity from the 28 power plants was 4,842MWh/h during the review period, further underscoring the gap between installed capacity and actual performance in Nigeria’s power sector.
