The Nigerian Independent System Operator (NISO) has attributed the poor power supply facing a considerable number of Nigerians to inadequate gas supply to thermal power plants.
Business Post reports that epileptic power supply has plagued consumers in Lagos, Oyo, Abuja, and Osun, among others, this month, leading to worries. Also, some businesses have recorded losses due to the epileptic power supply in their areas.
In a statement posted on its X handle, NISO disclosed that average available generation on the national grid currently stands at about 4,300 megawatts (MW), with the low output primarily attributed to gas supply constraints.
The system operator noted that thermal power plants, which account for the dominant share of Nigeria’s electricity generation mix, require an estimated 1,629.75 million standard cubic feet (MMSCF) of gas per day to operate at optimal capacity. However, as of February 23, 2026, actual gas supply to the plants was approximately 692.00 MMSCF per day.
The available supply represents less than 43 per cent of the daily gas requirement, resulting in constrained generation output and reduced electricity allocation to Distribution Companies (DisCos).
NISO, which independently manages the nation’s electricity grid, explained that any disruption or limitation in gas supply directly affects available generation capacity and overall grid output, given the heavy reliance on thermal plants.
It added that when total system generation drops significantly, the operator is compelled to implement load shedding across the network while dispatching available energy in line with allocation percentages approved under the Multi-Year Tariff Order (MYTO) framework of the Nigerian Electricity Regulatory Commission (NERC), to maintain grid stability and prevent system disturbances.
While expressing regret over the inconvenience to electricity consumers and market participants, NISO said it is working closely with relevant stakeholders to restore full energy allocation once gas supply improves and generation capacity returns to normal levels.