Europe could face a gas shortfall of between 12% and 15% of demand if a severe cold snap strikes this winter, according to a new assessment by the European Network of Transmission System Operators for Gas (ENTSOG). The warning highlights the pressure facing the EU as it relies more heavily on liquefied natural gas (LNG), alternative pipeline supplies and cooperation between member states.
The report, published on 8 October 2026, examines winter supply conditions in scenarios where Russian pipeline gas is unavailable. It comes as EU gas storage facilities were reported to be 72% full on 1 October, compared with 83% at the same point last year.
Gas storage levels leave the EU exposed
ENTSOG described the recent storage injection period as challenging. Although storage levels are only one part of the wider supply picture, lower reserves reduce the buffer available if demand rises sharply during an extended cold spell.
The assessment considers the consequences of a combination of risks, including:
- A severe winter that increases household and industrial gas demand.
- A major disruption affecting offshore infrastructure supplying continental Europe.
- A complete interruption of pipeline imports from Algeria.
- Tighter global LNG availability and increased competition with Asian buyers.
The report does not predict that these events will necessarily occur together. Instead, it tests how the European gas system could respond under difficult conditions and identifies areas where infrastructure and supply routes remain vulnerable.
LNG has become central to Europe’s energy security
As the EU has reduced its reliance on Russian pipeline gas, LNG has become increasingly important. The United States has emerged as the bloc’s leading LNG supplier, helping replace part of the gas previously delivered through pipelines.
That shift has also increased Europe’s exposure to global shipping, competition and price movements. LNG cargoes can be redirected to whichever market offers the most attractive price, meaning European buyers compete directly with customers elsewhere.
ENTSOG warned that, even in normal winter conditions, tighter LNG supplies could reduce European storage levels to around 13% by March 2027. Such a situation could place pressure on prices and lead energy-intensive industries to reduce or temporarily halt production.
Higher prices may also encourage households and businesses to reduce consumption. However, demand reduction caused by price pressure can carry economic costs, particularly for manufacturers that depend on gas for heat or production processes.
Shipping disruption adds to supply uncertainty
The report points to constraints affecting LNG shipping through the Strait of Hormuz, a major global maritime chokepoint. Disruptions in the route have affected exports from Qatar and the United Arab Emirates, adding to concerns about the availability of cargoes on the international market.
Europe’s direct dependence on Qatari gas is relatively limited, but any reduction in global LNG supply can affect European buyers by intensifying competition with Asian markets. Italy is identified as the EU country most exposed to the direct effects of reduced Qatari deliveries.
This illustrates a wider change in European energy policy: replacing Russian pipeline gas with LNG has diversified supply sources, but it has not removed geopolitical risk. Instead, some of that risk has shifted from pipelines to shipping routes, terminals and global commodity markets.
Central and south-eastern Europe face particular risks
Western European countries generally have greater access to coastal LNG terminals and pipeline supplies from Norway. Landlocked countries in Central, Eastern and South-Eastern Europe can face more difficulty obtaining gas when cross-border flows are constrained.
ENTSOG warned that infrastructure bottlenecks could restrict the movement of gas from western supply hubs towards eastern and south-eastern markets. If major routes, including North Sea infrastructure or Algerian import lines, were disrupted during a harsh winter, some areas could experience localised shortages on peak-demand days.
South-Eastern Europe could face shortfalls of up to 12% during periods of maximum demand under the report’s most difficult conditions. The risk is not only whether sufficient gas exists in Europe, but whether it can be delivered to the places where it is needed quickly enough.
Brussels calls for cooperation and early preparation
The European Commission has urged member states to maximise storage injections early in the season and maintain cooperation if demand reductions become necessary. The objective is to avoid uncoordinated national measures that could worsen shortages in neighbouring countries.
EU countries have also been given temporary flexibility to reach storage levels of 75% to 80% by 1 November, rather than the usual 90% target. The flexibility is intended to limit panic buying and prevent additional upward pressure on gas prices while recognising the difficult injection season.
Gas storage rules and emergency planning are designed to support solidarity between member states. In practice, however, a severe shortage could test governments’ willingness to prioritise regional cooperation alongside domestic consumer protection.
What could the warning mean for consumers and businesses?
The report does not announce an immediate rationing measure or establish that households will face interruptions. Its significance is that it identifies the conditions under which the EU energy system could come under severe stress.
If supply tightens, the most likely early effects would include:
- Greater volatility in wholesale gas prices.
- Higher costs for electricity generation where gas-fired power stations are used.
- Pressure on energy-intensive industries to reduce consumption.
- Possible government measures to limit demand during peak periods.
- Greater political pressure to share supplies across borders.
Wholesale prices are not the same as household bills, which also depend on contracts, taxes, network charges and national support schemes. Nevertheless, sustained wholesale price increases can eventually affect consumers and businesses.
Why the outlook matters for Ireland
Ireland’s gas system has its own characteristics, including dependence on imported energy and the importance of gas-fired generation to electricity supply. The ENTSOG assessment is not an Ireland-specific forecast, and it does not state that Irish consumers will face a gas shortage.
However, a tighter European market could affect Ireland indirectly through wholesale prices, LNG competition and electricity-market conditions. Irish businesses with high energy use may also be exposed to wider European price volatility.
What happens next?
The immediate focus will be on storage levels, weather conditions, LNG arrivals and the reliability of major pipeline routes. EU governments will also need to coordinate closely if supply becomes tight, particularly where infrastructure limits the movement of gas between regions.
The central message is that Europe’s post-Russian energy system has improved supply diversification but remains vulnerable to simultaneous shocks. Adequate storage, functioning infrastructure and cooperation between member states will be critical if the winter becomes unusually cold.
The latest EU gas outlook is therefore a warning about resilience rather than a prediction of inevitable shortages. The closer storage levels move towards winter demand, the more important early preparation and cross-border solidarity will become.
