Europe's LNG dependence is growing as EU gas storage sits at a 15-year low for September. What the supplier shift means for winter and energy costs.
Europe's LNG dependence is growing: U.S. gas now supplies the EU more than any source except Norway, and the bloc is heading into winter with its lowest September gas storage in 15 years. That is the picture in a Politico Surge newsletter from Sept. 4, 2026, and the numbers behind it are worth a close look.
Europe spent years cutting its Russian gas imports after the invasion of Ukraine. Now, according to the same report, some European officials worry about becoming too dependent on U.S. liquefied natural gas (LNG) instead.
For a commercial solar owner, this is not a distant story. Gas often sets the marginal price of electricity, so when gas supply is tight, power costs follow. Here is what the data shows and what to take from it.
How Did Europe's Gas Supply Shift From Russia to the U.S.?
Russian gas imports into the EU fell from more than 150 billion cubic meters (bcm) in 2021 to 36 bcm in 2025, while U.S. imports rose from 18.9 bcm to 75.6 bcm. That made the U.S. the EU's second-largest gas supplier, behind Norway.
The swap is not one-for-one. By those figures, Russian supply fell by well over 100 bcm while U.S. supply grew by about 57 bcm, so the U.S. is only part of the replacement story. The reversal began with the same shock that drove Europe's record solar output: Russia's 2022 invasion and the scramble to cut reliance on Russian gas.
How Low Is EU Gas Storage Heading Into Winter?
By early September 2026, EU gas storage was about 66% full, the lowest level for that point in the year in 15 years. Politico's figures put it in context:
- ●Where storage stood. About 66% full, or roughly 67 bcm of the EU's 102 bcm of storage capacity.
- ●The formal target. 90% full, or about 92 bcm.
- ●The working target for this winter. Officials have said 80%, about 82 bcm, should be enough under current conditions.
- ●A year earlier. Storage was around 78% full in late August 2025.
By those numbers, the gap to the 80% level was about 15 bcm in early September. These are early-September figures, so check current storage data before quoting them.
Why Does Norway Matter So Much for Europe's Gas Supply?
Norway was the EU's largest gas supplier in 2025, providing 89.3 bcm, or 30.9% of all EU gas imports. A year earlier it supplied 91.1 bcm, or 33.4%.
Norway also has the infrastructure to move large volumes directly into Europe. Kårstø, Europe's largest gas-processing plant of its kind, is connected to around 30 offshore fields and can process about 98 million standard cubic meters of rich gas per day. After processing, dry gas goes by pipeline to continental Europe.
Europe is not treating Norwegian gas as a short-term fix. Equinor, Norway's largest oil and gas producer, recently signed a 15-year agreement with German utility Uniper. Starting in 2027, Equinor will supply more than 30 TWh of gas a year, about 2.8 bcm, through 2041.
Can Norwegian Gas End Europe's LNG Dependence?
No. More Norwegian gas can reduce how much Europe leans on U.S. LNG and what remains of Russian supply, but changing suppliers does not end Europe's need to import gas.
Norway also cannot sustain today's output forever. It produced 240 million standard cubic meters of oil equivalent in 2025, including 121.8 bcm of gas. In the Norwegian Offshore Directorate's low scenario, total oil and gas production falls to about 15 million oil-equivalent cubic meters by 2050.
That leaves Europe with a hard balance. It needs enough gas for today while building more renewable power, storage, grids, nuclear, and other alternatives that cut how much it has to import later. Politico ends on the question that follows: diversify gas supplies further, or invest faster in alternatives that reduce gas demand altogether?
What Does Europe's Gas Problem Mean for Solar Owners? (DGE Take)
Gas supply stress shows up in power prices, and a solar system that is actually producing is the part of your energy costs that does not depend on it. Three things from our earlier coverage help put Europe's situation in perspective:
- ●Gas often sets the price. In Europe's power markets the most expensive generator sets the price, and gas frequently plays that role. That is why solar saved the EU billions in fossil fuel imports in a single month during a recent gas price spike.
- ●Spain shows the other side. After adding more than 40 GW of wind and solar since 2019, Spain went from gas setting power prices three hours out of every four to fewer than one in five by 2025. We walked through how Spain cut the link between gas and power prices.
- ●U.S. gas is tied to the same global market. As exports grow, domestic gas competes with higher-priced overseas buyers. We explained why natural gas is no longer cheap electricity and why American homes and businesses feel it.
The catch is that a solar system only works as a hedge if it delivers. If you cannot say what yours produced last year compared with what it should have, start with whether your commercial solar system is still performing.
Start With a Ballpark Estimate
Europe's storage and supplier numbers will keep moving through the winter. The value of an existing commercial solar system is something you can check today. Enter your ZIP code, project type, system size, and the year it went live to see what your project may be worth.
Source: The gas problem in Europe that Trump helped create, Politico Surge.
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