Heat, drought, and war leave Europe facing worst winter gas crunch in 15 years

Europe's energy markets are under mounting strain as a constellation of crises threatens to leave the continent dangerously undersupplied heading into winter. A fourth heat wave since May is sweeping the continent, persistent drought has reduced the Rhine to near-record lows, and the ongoing Iran conflict continues to disrupt global liquefied natural gas supplies — raising the prospect of the tightest winter supply picture in more than a decade.

Storage Gap Widens

EU gas storage stood at roughly 54% of capacity as of late July, about 12 percentage points below the five-year seasonal norm, according to Gas Infrastructure Europe data. Energy Aspects has warned that storage levels are 15 billion cubic meters below the five-year average, requiring TTF prices to remain elevated through summer to incentivize injections. The Financial Times reported in late June that Europe risks entering the heating season with its lowest gas stocks in at least 15 years, a finding echoed by the World Economic Forum.global-energy-flow+4

The boss of British Gas Centrica plc warned last week that the UK risks winter energy shortages, with wholesale gas prices hitting a one-year high. Dutch TTF natural gas futures climbed back above €60 per megawatt-hour in July amid escalating supply concerns, and Trading Economics data showed prices rising nearly 37% over the past month.yahoo+2

Heat and Drought Squeeze Supply

A historic fourth heat wave is forecast to push temperatures above 40°C across the Mediterranean, according to severe weather analysts. The extreme heat is curtailing French nuclear generation — warm river water limits cooling capacity — while suppressing wind output under heat dome conditions. Meanwhile, Reuters reported on July 27 that Rhine water levels at the Kaub chokepoint were expected to fall to around 20 centimeters by week's end, forcing cargo vessels to sail at just 15-20% capacity. Deutsche Welle reported the low water levels could shave 0.1-0.2% off German GDP in the third quarter, according to the Kiel Institute.facebook+4

Iran Conflict and Global LNG Competition

The disruption traces back to late February, when U.S. and Israeli military strikes against Iran prompted Tehran to close the Strait of Hormuz, choking off roughly 20% of global LNG supply. A subsequent Iranian attack on Qatar's Ras Laffan facility in March damaged two of 14 LNG trains, further tightening markets. S&P Global estimates that projected global LNG supply growth for 2026 has collapsed from 11% to just 1%.oxfordenergy+1

Adding to pressure, Goldman Sachs The Goldman Sachs Group, Inc. ↘ 4.68% has flagged that China's natural gas destocking signals stronger LNG imports ahead of winter, reinforcing upside risks to European gas prices — particularly if Hormuz disruptions persist. The competition for available cargoes between Asian and European buyers could intensify as peak heating demand approaches, leaving Europe's storage buffer perilously thin.energynow