Electricity generation across Nigeria is expected to dip temporarily as routine maintenance on a major gas production facility will reduce gas supply to several thermal power plants, the Nigerian National Petroleum Company Ltd has said.
Scheduled maintenance on gas infrastructure is a standard industry practice to ensure safety, asset integrity and operational efficiency.
This scheduled four‑day maintenance by Seplat Energy Plc, a joint venture partner and key gas supplier to the NNPC Gas Infrastructure Company Limited pipeline network, will run from February 12 to February 15, 2026.
The Nigerian Independent System Operator has formally notified electricity market participants and consumers that reduced gas availability from the maintenance shutdown could affect electricity generation levels during the period.
In a notice issued jointly with Seplat Energy’s announcement, NNPC Ltd’s Chief Corporate Communications Officer, Andy Odeh, said the maintenance forms part of safety and asset integrity protocols designed to maintain the reliability and efficiency of critical gas infrastructure.
The temporary reduction in gas supply to the NNPC Gas Infrastructure Company Limited pipeline network is expected to constrain gas deliveries to major grid‑connected thermal power plants.
These include Egbin, Azura, Sapele and Transcorp Power Plants. Other stations such as NDPHC Sapele, Olorunsogo and Omotosho may also face indirect constraints due to broader network gas balancing effects.
Full gas supply is projected to resume promptly after the maintenance window ends on February 16, 2026, according to statements from NNPC Ltd and Seplat Energy.
The anticipated reduction in gas supply to thermal power plants means that electricity generation levels may fall below recent output during the maintenance period.
The system operator’s notices highlight the need for careful system management to maintain grid stability while the maintenance exercise is ongoing.
Electricity distribution companies and consumers may see reduced available power during this period, given the dependence of thermal plants on gas supply from the affected facility.
These generation dips emphasize the sensitivity of the power sector to fuel supply constraints.
Operators have also noted that any necessary load management arrangements would prioritise critical national infrastructure and essential services, in line with standard operational protocols.
