Seplat Energy Plc, a key partner of the Nigerian National Petroleum Company Limited (NNPC Ltd), will carry out scheduled maintenance on its gas facilities between February 12 and 15, 2026. The company supplies gas to the NNPC Gas Infrastructure Company Limited (NGIC) pipeline network.
NNPC’s Chief Corporate Communications Officer, Andy Odeh, confirmed on Thursday that the four-day maintenance is a routine safety and asset integrity measure designed to preserve the reliability and efficiency of vital gas infrastructure.
“Some power generation companies that depend on this supply may experience reduced gas availability, potentially causing a moderate impact on electricity generation during this period,” the company said in a statement.
To minimize disruption, NNPC’s subsidiary, NNPC Gas Marketing Limited (NGML), is working with alternative suppliers to fill the expected supply gap and maintain network stability. Normal gas supply is anticipated to resume immediately following the maintenance completion.
The Nigerian Independent System Operator (NISO) has confirmed receiving official notification of the planned shutdown and warned that several major thermal power plants connected to the national grid may face gas supply constraints.
Power plants expected to be directly affected include Egbin, Azura, Sapele, and Transcorp. Additional facilities such as NDPHC Sapele, Olorunsogo, and Omotosho may experience secondary impacts due to system-wide gas rebalancing requirements.
NISO indicated that the temporary gas shortage would reduce thermal generation capacity, requiring careful system management to preserve grid stability. Should load shedding become necessary, it will be implemented in a structured and transparent manner in coordination with Distribution Companies (DisCos), with critical national infrastructure, essential services, and security installations receiving priority.
The National Control Centre will maintain heightened monitoring and contingency planning throughout the maintenance window.
Both NNPC and NISO have called for public patience, stressing that the maintenance is essential for ensuring the long-term safety, reliability, and sustainability of Nigeria’s gas infrastructure that powers the electricity sector.
Full gas supply is expected to be restored on February 16, 2026.
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