The Nigerian Independent System Operator (NISO) has notified of possible power reduction nationwide due anticipated gas supply constraints affecting some major thermal power generating stations connected to the national grid.
NISO, in a statement on Thursday, explained that the information was based on from a formal notification received on the scheduled maintenance shutdown of a major gas supply facility from 12 to 15 February 2026 (both days inclusive), adding that full gas supply is expected to be restored on 16 February 2026.
The System Operator also informed that during the maintenance period, gas availability to certain power plants that depend on this supply network will be temporarily reduced.
“Power stations expected to be directly impacted include Egbin, Azura, Sapele, and Transcorp Power Plants, while NDPHC Sapele, Olorunsogo, and Omotosho Power Plants may experience indirect constraints due to network-wide gas balancing effects. This will result in a temporary reduction in available thermal generation capacity across the national grid,” it noted.
NISO said the reduction underscores the need for careful system operation to maintain grid stability and reliability.
Noting that in line with its statutory mandate, it would deploy appropriate real-time operational measures to safeguard the integrity and security of the national grid throughout the maintenance window.
“Any load shedding, if required, will be implemented in a structured, transparent, and equitable manner in close coordination with Distribution Companies (DisCos). Priority will be accorded to critical national infrastructure, essential services, and security installations,” it stated.
NISO assured all stakeholders and electricity consumers that every action taken during this period would be strictly guided by established operational procedures, grid security requirements, and reliability standards.
“The National Control Centre will intensify real-time system monitoring and contingency planning, while also ensuring fair load allocation based on available generation capacity,” it added.
NISO appreciates the understanding and cooperation of all stakeholders as the gas supplier undertakes this essential maintenance, which is necessary to ensure the long-term safety, reliability, and sustainability of upstream gas infrastructure in support of Nigeria’s power sector.
