Hypothetical If a wider war in Europe cut energy supplies: three UK scenarios
AI-generated hypothetical scenario based on official statistics. It is not a forecast and may not reflect what actually happens.
This hypothetical explores what could happen to UK household energy bills, prices, jobs and industry if a wider conflict in Europe sharply reduced gas and power supplies, compared with Germany. The UK starts from a weaker position than a few years ago: it relied on net imports for 47.56% of its energy use in 2024, up from 43.44% in 2023, and its inflation was already running at 3.88% in 2025. Germany depends far more on imports (70.26% in 2024) but went into the shock with lower inflation (2.17% in 2025). Three paths, mild, central and severe, show how the outcome depends on how long supplies stay tight, how far prices reach households and how governments respond. These are illustrations, not forecasts.
Hypothetical: a wider conflict in Europe sharply cuts gas and power supplies to the continent. This analysis looks only at the economic and social knock-on effects for the United Kingdom, including bills, prices, industry and everyday life, and how they might compare with Germany. It does not describe the conflict itself.
Where things stand now (official data)
- The UK met a sizeable share of its energy needs from abroad before any shock: net energy imports were 47.56% of energy use in 2024, up from 43.44% in 2023. That rising reliance means more of the UK's energy bill is set in international markets.
- Germany is considerably more exposed on paper. Its net energy imports were 70.26% of energy use in 2024 and 70.33% in 2023, so roughly two-thirds or more of its energy came from outside its borders.
- UK inflation was already elevated and rising before the hypothetical shock: consumer prices rose 3.88% in 2025, after 3.27% in 2024. Any energy price spike would land on top of that.
- Germany started with calmer prices: inflation was 2.17% in 2025 and 2.26% in 2024. That gives it a little more room before an energy shock pushes inflation uncomfortably high, even though its import dependence is greater.
- Gas and electricity are traded across Europe, and wholesale power prices in the UK are often set by gas-fired generation. So even gas not physically bought from the affected region would likely become more expensive for UK buyers.
Mild: A sharp jolt that fades
Assumption · Supply disruption is serious but short. Alternative cargoes of liquefied gas are found within weeks, storage across Europe holds up, the winter is not unusually cold and wholesale prices ease within a few months.
- Weeks 1–2Wholesale gas and power prices jump as traders react to the news. Because the UK imported 47.56% of its energy in 2024, the effect on its markets is immediate, though less concentrated than in Germany, where the share was 70.26%.
- Weeks 3–8Extra liquefied gas shipments are redirected towards Europe, and UK domestic gas output from the North Sea plus wind generation helps cover part of demand. Wholesale prices stay high but stop climbing.
- Months 2–6Household bills rise at the next price cap review, but by less than in the 2022 shock because wholesale prices have already started to retreat. Businesses on short-term contracts feel it first; those with fixed deals are shielded for now.
- Months 3–12UK inflation, which was 3.88% in 2025, edges higher for a few months as energy and transport costs pass through, then begins to ease. In Germany, starting from 2.17%, inflation rises too but stays closer to normal levels.
- Year 2By the following year prices have settled, though at a somewhat higher level than before. Policy debate shifts to storage capacity and how to reduce reliance on imports, which had risen from 43.44% in 2023 to 47.56% in 2024.
Effects in this path
- Household bills ▲ Rises
Household energy bills rise noticeably for one or two price-cap periods, then drift down, squeezing budgets over a single winter rather than for years. - Prices ▲ Rises
Inflation stays above the 3.88% seen in 2025 for a while, delaying any return to calmer price growth. - Industry ▼ Falls
Energy-hungry manufacturers such as chemicals, glass, ceramics and steel trim output briefly, but few permanent closures follow. - Jobs ◆ Mixed
Employment is largely unaffected; some firms cut overtime or pause hiring for a few months. - UK–Germany comparison ◆ Mixed
Germany's heavier import reliance means its industry takes a stronger short-term hit, but its lower starting inflation softens the effect on consumer prices.
Central: A long, expensive winter
Assumption · Supplies remain tight for a year or more. Europe competes hard for liquefied gas, prices stay high through at least one full winter, and governments offer partial, temporary support to households and some businesses.
- Weeks 1–4Wholesale gas and electricity prices surge and stay high. With nearly half of UK energy use met by net imports in 2024 (47.56%), suppliers face sharply higher costs they cannot avoid.
- Months 1–3Several smaller energy suppliers struggle with soaring purchase costs; customers are moved to other firms. Businesses renewing contracts face much higher quotes, and some delay renewing or cut back production.
- Months 3–9The household price cap rises steeply at successive reviews. The government introduces temporary support for bills, which limits the immediate hit but adds to public borrowing.
- Months 4–12Energy costs ripple into food, transport and goods prices. UK inflation, already 3.88% in 2025 and up from 3.27% in 2024, climbs well above those levels. German inflation, starting from 2.17%, also rises markedly.
- Months 6–12The Bank of England faces a dilemma: rising prices argue for keeping interest rates higher, while a slowing economy argues for caution. Mortgage holders coming off fixed deals face uncertainty.
- Months 6–18Germany, importing 70.26% of its energy in 2024, sees deeper cuts in energy-intensive industry. Some UK manufacturers find European supply chains disrupted, while a few UK firms pick up orders where German competitors cannot deliver.
- Year 2As new supply routes and efficiency measures bed in, prices come down from their peak but remain above pre-shock levels. Investment in insulation, heat pumps, renewables and storage accelerates.
Effects in this path
- Household bills ▲ Rises
Household energy bills rise sharply over at least one winter; government support cushions but does not remove the increase. - Prices ▲ Rises
Inflation moves clearly above the 3.88% recorded in 2025, eroding real wages and savings, especially for lower-income households who spend more of their budget on energy and food. - Industry ▼ Falls
Energy-intensive factories cut shifts or temporarily halt lines; some marginal sites close for good. - Jobs ▼ Falls
Unemployment rises modestly, concentrated in manufacturing regions and hospitality, where customers cut back on spending. - Everyday life ▼ Falls
More households struggle to heat their homes adequately; demand grows for advice services, food banks and local warm spaces. Older people and families with young children are most affected. - Public finances ▲ Rises
Public borrowing rises to fund bill support, narrowing room for other spending. - UK–Germany comparison ◆ Mixed
Germany's industrial base suffers more from its higher import share, while the UK's higher starting inflation means British consumers may feel price pressure at least as acutely.
Severe: Rationing and recession
Assumption · Disruption is deep and prolonged, lasting through two or more winters. Liquefied gas supply cannot fill the gap, a cold winter strains storage, and parts of Europe introduce demand restrictions for industry.
- Weeks 1–4Wholesale prices spike to extreme levels and remain volatile. The UK, importing 47.56% of its energy in 2024, competes with continental buyers, including Germany at 70.26%, for scarce cargoes.
- Months 1–3Grid operators and governments across Europe prepare contingency plans. In the UK, large industrial users are paid or asked to reduce consumption at peak times; the public is encouraged to save energy.
- Months 2–6In Germany, with its heavier import dependence, some energy-intensive plants are forced to curtail output for extended periods. Supply chains supplying UK car, chemical and food manufacturers are disrupted.
- Months 3–9UK household bills rise to levels many families cannot manage, even with emergency support. Debt and arrears to energy suppliers climb steeply.
- Months 6–12Inflation, starting from 3.88% in 2025, accelerates sharply as energy costs push up the price of almost everything. German inflation, from 2.17%, also surges. Both economies slip into recession.
- Months 9–18Factory closures and cutbacks spread; hospitality and retail suffer as households cut spending to essentials. Unemployment rises noticeably in industrial areas.
- Year 2A second tight winter prolongs the strain. Governments face very large costs for support schemes, and longer-term questions emerge about which industries can remain viable in Europe.
- Years 2–3Recovery is slow. Some heavy industry may not return, while investment in domestic energy, efficiency and grid connections speeds up to cut the import reliance that had risen from 43.44% in 2023 to 47.56% in 2024.
Effects in this path
- Household bills ▲ Rises
Energy bills reach a level that pushes large numbers of households into hardship, despite emergency support. - Prices ▲ Rises
Inflation rises far above the 3.88% seen in 2025, sharply cutting living standards. - Industry ▼ Falls
Some energy-intensive industries close permanently or relocate outside Europe. - Jobs ▼ Falls
Unemployment rises clearly, particularly in manufacturing regions, logistics and consumer-facing services. - Everyday life ▼ Falls
Cold homes, rising debt and stress on household finances weigh on wellbeing; pressure grows on local services and charities. - Public finances ▲ Rises
Public borrowing climbs steeply to fund support, with lasting consequences for future budgets. - UK–Germany comparison ◆ Mixed
Germany's industry likely suffers deeper damage given its 70.26% import share, while the UK's lower dependence offers some relative protection, though not immunity, because energy prices are set across connected markets.
Signals to watch
- Wholesale gas and electricity prices in the UK and continental Europe, and how long any spike lasts
- Levels of gas storage across Europe heading into winter
- Announcements from the energy regulator on the household price cap
- Monthly UK and German consumer price inflation figures
- Government decisions on support for household and business energy bills
- Industrial production figures for energy-intensive sectors in both countries
- Unemployment and redundancy notifications in manufacturing regions
- Energy supplier failures and levels of customer arrears
What this scenario cannot tell you
- The facts only show net energy import shares and annual inflation; they do not show how much UK gas or power comes specifically from parts of Europe that might be affected.
- Annual net import shares do not capture the UK's mix of fuels, its storage capacity, or how much electricity flows through interconnectors with the continent.
- Inflation figures are annual averages and say nothing about which goods drive price rises or how energy costs pass through to other prices.
- The data cannot tell us how governments, central banks or energy regulators would respond, which strongly shapes every path.
- Weather, technology changes and global gas markets beyond Europe could make outcomes better or worse than any path described here.
- These scenarios are AI-generated illustrations built from limited official data. They are not forecasts and assign no probabilities to any outcome.
Data used
| United Kingdom net energy imports (% of energy use) | 47.56% | 2024 | World Bank |
| United Kingdom net energy imports (% of energy use) | 43.44% | 2023 | World Bank |
| Germany net energy imports (% of energy use) | 70.26% | 2024 | World Bank |
| Germany net energy imports (% of energy use) | 70.33% | 2023 | World Bank |
| United Kingdom consumer price inflation (annual %) | 3.88% | 2025 | World Bank |
| United Kingdom consumer price inflation (annual %) | 3.27% | 2024 | World Bank |
| Germany consumer price inflation (annual %) | 2.17% | 2025 | World Bank |
| Germany consumer price inflation (annual %) | 2.26% | 2024 | World Bank |
AI-generated hypothetical scenario based on official statistics. It is not a forecast and may not reflect what actually happens.