The Nigerian Independent System Operator, NISO, has explained that declining power output in the country is due to generation shortfalls and gas supply limitations.
In a statement on Friday, the 27th of February, 2026, NISO said that any disruption or limitation in gas supply directly affects available generation capacity and overall grid output.
The statement noted that the energy currently allocated to Distribution Companies, DisCos, reflects the reduced supply available on the grid.
NISO reported that operational data shows thermal power plants collectively require about 1,629.75 million standard cubic feet (MMSCF) of gas per day to operate at optimal capacity.
However, actual gas supply to the stations as of tye 23rd of February, 2026, was approximately 692.00 MMSCF, marking a significant shortfall in daily gas requirements.
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The operator stressed that the available gas supply is less than 43% of the needed volume, causing constrained generation output. It emphasised that low generation levels are mainly driven by inadequate gas supply to thermal generating units, which reduces energy allocation to the DisCos.
“We hereby notify the general public and all market participants that the current average available generation of approximately 4,300MW is primarily due to inadequate gas supply to thermal generating stations.
“When total system generation drops significantly, the Independent System Operator must implement load shedding across the system, while dispatching available energy in line with the NERC MYTO allocation percentages across all distribution networks to maintain grid stability and prevent system disturbances.
“While we regret the inconvenience this situation may cause electricity consumers and affected market participants, we will continue to work closely with relevant stakeholders to ensure full energy allocation as soon as gas supply improves and generation capacity is restored,” NISO said.