- 57% daily gas supply contraction a severe shock
- Energy economists blame structural weaknesses
- Electricity market facing liquidity stress
A renewed wave of electricity outages is sweeping across the country after a severe gas supply shortfall to thermal power plants forced average grid generation down to 4,300 megawatts, intensifying load shedding and reviving longstanding concerns about the structural fragility of the nation’s power value chain.
Fresh data released by the Nigerian Independent System Operator (NISO) confirm that the sustained decline in generation reflects worrisome fuel constraints rather than technical dispatch inefficiencies. In a public notice titled “Declining Power Output Attributable to Generation Shortfalls and Gas Supply Limitations,” the system operator disclosed that gas deliveries to thermal generating stations have fallen drastically in recent weeks, leaving installed capacity significantly underutilised and forcing nationwide rationing across distribution networks.
Maintenance shock turns into prolonged supply deficit
The current crisis traces back to early February when scheduled maintenance on key gas infrastructure by the Nigerian National Petroleum Company Limited and Seplat Energy temporarily disrupted fuel supply to several generating stations.
Although the maintenance exercise was anticipated, industry participants expected a quicker restoration of supply flows. Instead, gas volumes have yet to recover to optimal levels, leaving thermal plants operating far below capacity and the grid in a prolonged state of constraint.
According to NISO, thermal stations require an estimated 1,629.75 million standard cubic feet (mmscf) of gas per day to function optimally. As of February 23, 2026, actual daily supply stood at just 692 mmscf , less than 43 percent of required volumes. The resulting 57 percent supply gap has directly translated into suppressed generation output.
“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,” the system operator stated.
Because thermal plants account for more than 70 percent of grid electricity, disruptions in gas availability immediately weaken the volume of power allocated to Distribution Companies (DisCos), cascading through the entire supply chain.
With peak national electricity demand estimated to exceed 20,000 megawatts, the current output level of 4,300 megawatts highlights a supply deficit of more than 15,000 megawatts. Even under normal operating conditions, installed capacity, estimated at just over 12,000 megawatts, falls short of projected demand growth. At current generation levels, the imbalance is striking.
NISO confirmed it has been compelled to implement load shedding in accordance with allocation guidelines under the Multi-Year Tariff Order (MYTO) framework regulated by the Nigerian Electricity Regulatory Commission (NERC). It explained that when system generation declines, energy must be rationed to preserve grid stability and prevent total system collapse.
For households, this has meant longer blackout periods and unpredictable supply windows. For industry, it has triggered operational disruptions, forcing firms to revert to diesel self-generation at significantly higher cost.
Energy economists argue that the current episode reveals entrenched structural weaknesses rather than a one-off maintenance disruption.
Ayodele Oni, an energy law specialist, describes the situation as a fundamental supply-side bottleneck. Improvements in dispatch transparency or transmission coordination, he notes, cannot compensate for inadequate fuel input.
Adeola Adenikinju, former president of the Nigerian Economic Society, points to concentration risk in the generation mix as a core vulnerability. He noted that overreliance on gas-fired plants leaves the grid exposed to upstream disruptions; whether linked to production constraints, infrastructure bottlenecks or commercial disputes.
A 57 percent contraction in daily gas supply, Adenikinju observes, is not a marginal variance but a severe shock capable of destabilising industrial output, raising production costs and constraining economic growth.
Liquidity crisis in the gas-to-power value chain
Beyond physical supply limitations, the situation has reignited scrutiny of liquidity stress within the electricity market.
Generation Companies (GenCos) frequently struggle to meet payment obligations to upstream gas suppliers because DisCos face high aggregate technical, commercial and collection losses. Revenue shortfalls at the distribution level cascade upstream, weakening the financial viability of the entire ecosystem.
Bismarck Rewane, managing director of Financial Derivatives Company, said the liquidity crisis in the power sector has long weakened confidence among upstream gas producers, who may prioritise export contracts or industrial customers offering stronger payment guarantees.
He observed that foreign exchange volatility adds complexity to the equation because gas pricing frameworks are frequently dollar-linked while much of the power sector’s revenue is naira-denominated, creating cost recovery distortions that discourage supply consistency. According to him, resolving the gas shortage will require a coordinated financial strategy that addresses arrears, enhances tariff cost reflectivity and stabilises currency conditions to restore investor confidence across the value chain.
The separation of NISO from the Transmission Company of Nigeria was intended to strengthen operational independence and improve dispatch transparency, yet experts say institutional reforms cannot compensate for inadequate fuel flows.
Dan Kunle, a power sector consultant, said that while technical dispatch efficiency and grid transparency have improved under recent reforms, generation remains constrained by upstream supply realities, stressing that sustainable electricity growth depends fundamentally on secure gas infrastructure and predictable commercial arrangements.
He added that pipeline security and infrastructure integrity remain ongoing concerns, noting that even when maintenance-related disruptions end, vandalism and bottlenecks can impede full recovery of supply volumes.
The macroeconomic consequences of sustained outages are increasingly evident across manufacturing, services and small business segments. Manufacturers report that diesel self-generation now accounts for a growing share of operating expenditure, compressing margins and undermining competitiveness in an environment already characterised by elevated borrowing costs and currency adjustments.
Energy self-sufficiency, while necessary to maintain production continuity, introduces significant cost premiums. These expenses are frequently passed through to consumers, amplifying inflationary pressures. Small and medium-sized enterprises are particularly vulnerable. Limited access to capital restricts investment in large-scale backup systems, exposing businesses to revenue volatility and productivity disruptions.
The present episode mirrors previous cycles in which gas supply interruptions precipitate generation collapse, triggering load shedding and forcing economic actors to rely on expensive alternatives until gradual stabilisation occurs.
Demand growth continues to outpace incremental capacity additions. Even full restoration of gas supply to 1,629 mmscf per day would not entirely close the structural deficit between installed generation and national electricity needs. With operational output currently at roughly one-fifth of estimated peak demand, the system remains structurally underpowered relative to economic aspirations.
NISO has expressed regret over the inconvenience to consumers and affirmed engagement with stakeholders to restore full energy allocation once supply improves. Yet, analysts caution that short-term recovery will not eliminate recurring vulnerabilities.
Adenikinju argues that the power reform agenda stands at a pivotal moment. He noted further that securing reliable gas supply through improved payment discipline, infrastructure expansion, and regulatory certainty is essential to unlocking latent generation capacity.
