EU gas storage at 13-year low as winter approaches

Europe is heading into the heating season with its gas inventories at their lowest late-August level in 13 years. Storage sites across the EU were 63% full in the final week of August, according to data from Gas Infrastructure Europe, compared with a five-year average of roughly 80% for the same period. The shortfall amounts to roughly one-fifth of typical winter starting volumes, a gap that has prompted traders and analysts to speak openly of a winter panic.

How the deficit built up

The hole in European storage has three main causes. A cold snap at the end of the 2025-26 winter drew down inventories more deeply than usual. Summer heatwaves then forced gas-fired power plants to run harder to meet cooling demand and to compensate for weak wind output, burning gas that would normally have been injected into storage. The third factor is geopolitical: the US-Israel war on Iran has severely disrupted oil and gas exports from the Gulf, choking off a supply route that Europe had counted on to refill caverns and tanks during the low-demand months.

Greg Molnar, a gas analyst and professor, noted that at the current sluggish injection rate the EU will enter November with stocks about 20% below the five-year average, the weakest position since 2013. Low storage levels are naturally increasing the risk of heightened winter price volatility, he wrote, a risk that would be amplified by cold spells or prolonged low-wind periods that drive up gas-for-power demand.

Price signals already flashing red

The market has not waited for winter to react. The Title Transfer Facility (TTF) benchmark, Europe's wholesale gas reference, has climbed above €68 per megawatt-hour in recent weeks, more than double the price at the start of 2026 and the highest level since the energy crisis of 2022-23. The rally reflects a growing consensus that European buyers will have to outbid Asian importers for every available cargo of liquefied natural gas (LNG) once northern hemisphere heating demand picks up.

Bjarne Schieldrop, chief analyst commodities at the Nordic banking group SEB, said European gas prices had stayed relatively calm through the summer on the hope that the Strait of Hormuz would reopen and allow Gulf exports to resume. No one expects it to happen any time soon, he added. As a result, the European natural gas market has run into a bit of a winter panic over the past week. Goldman Sachs analysts calculate that without a return of Middle East flows, the European benchmark would likely need to move above €100/MWh to attract enough LNG to meet winter demand.

Uneven storage picture across the bloc

The aggregate EU figure masks wide national variation. Italy and Poland have managed to fill their facilities to above 80%, putting them close to the seasonal target. Germany, which holds the continent's largest storage capacity, is only about half-full. Belgium and the Netherlands, the two markets directly connected to the UK by pipeline interconnectors, stand at 51% and 45% respectively. That matters because British supply security depends heavily on the ability to draw gas from the continent when domestic production and LNG imports fall short.

UK exposure is structural, not cyclical

The UK's vulnerability is more acute than most. It is one of Europe's largest gas consumers, yet it possesses minimal domestic storage capacity. The Rough facility off the Yorkshire coast, once the backbone of UK seasonal storage, was closed in 2017 and only partially reopened at reduced capacity. Chris O'Shea, chief executive of Centrica, the owner of British Gas, said this week the UK had almost no gas in storage for the coming winter. The country typically relies on pipeline imports from Norway, Belgium and the Netherlands, supplemented by LNG cargoes from the US, Qatar and the US Gulf Coast.

That reliance is set to deepen. North Sea production is declining faster than previously forecast, and Norwegian output is expected to begin a structural decline from 2030. The UK government is now consulting on direct financial support for gas storage operators and pipeline owners to keep infrastructure economically viable through the 2030s, an acknowledgment that the market alone will not maintain assets that sit idle for much of the year but are critical during supply crunches.

Household bills already rising

The price pressure is already reaching consumers. Ofgem, the UK energy regulator, confirmed this week that the typical dual-fuel bill will rise by 4% from October under its quarterly price cap, following a 13% increase at the start of July. The regulator explicitly cited global energy market price rises caused by the war on Iran as the driver. For a household on a standard variable tariff paying by direct debit, the annualised bill will move from £1,717 to roughly £1,786, though actual costs depend on consumption.

The role of LNG and the Asian pull

Europe's ability to navigate the winter hinges on the global LNG market. In 2025, the EU imported a record volume of LNG, much of it from the US, which helped offset the loss of Russian pipeline gas. But the same cargoes are now being chased by buyers in Japan, South Korea and China, where demand is rising as economies reopen and nuclear restarts lag. European traders must offer a premium over Asian delivered prices to secure each shipment. That premium is currently embedded in the TTF forward curve, but it may not be sufficient if winter temperatures drop sharply across both continents simultaneously.

There is also a timing problem. LNG liquefaction capacity is effectively sold out through 2027, with new US projects such as Plaquemines and Golden Pass still ramping up. Any disruption, a hurricane in the Gulf of Mexico, a technical outage at a Qatari train, a shipping delay at the Panama Canal, would remove cargoes from the market instantly, with no short-term substitute. Storage is the only physical buffer against such shocks, and that buffer is now unusually thin.

Policy responses taking shape

The European Commission has urged member states to accelerate injection rates and to coordinate demand-reduction measures where possible. The EU's gas storage regulation, revised in 2024, sets a 90% fill target for 1 November, but the current trajectory suggests many countries will miss it. The Commission can trigger a solidarity mechanism if a member state faces a supply emergency, but that is a last resort, not a planning tool. In the UK, the government's consultation on strategic gas infrastructure support closes in October, with decisions expected before the end of the year. Options include capacity payments for storage operators, regulated asset base models for pipelines, or direct capital grants for refurbishment.