With the war between the US/Israel and Iran threatening global oil supplies and the UK government's fuel duty freeze expected to end, petrol and diesel prices face pressure from multiple directions. Many drivers are wondering if switching to an EV could protect them from this volatility. Here's what you need to know.
The Immediate Threat: Middle East Conflict
Why It Matters to UK Drivers
The ongoing conflict involving the US, Israel, and Iran has put global oil markets on edge. Here's why this directly affects your fuel costs:
The Strait of Hormuz: Around 20% of the world's oil passes through this narrow waterway between Iran and the Arabian Peninsula. Any disruption — through military action, blockade, or even the threat of closure — sends oil prices surging.
Historical precedent:
The current situation: With direct military exchanges between Israel and Iran, and US involvement in the region, the risk of oil supply disruption is elevated. Unlike gradual price increases, conflict-driven spikes can happen overnight — you could wake up to petrol at £1.80 or £2.00/litre with no warning.
The Volatility Problem
Petrol prices are fundamentally unpredictable because they depend on:
As a petrol driver, you have zero control over your fuel costs. You're exposed to every geopolitical crisis, every OPEC decision, every military escalation.
What Else Is Happening to Fuel Prices?
The Fuel Duty Situation
On top of geopolitical volatility, the UK government's domestic policies are also pointing to higher prices:
The UK government has frozen fuel duty since 2011 and applied a temporary 5p cut in 2022. However:
Potential impact: Fuel duty returning to normal levels could add 10–15p per litre to petrol and diesel prices.
Other Price Pressures
Beyond conflict and fuel duty, several factors could push prices higher:
| Factor | Impact |
|---|---|
| Middle East conflict | Immediate spike risk of 20–40p/litre |
| Oil price volatility | Geopolitical instability affects crude prices |
| Carbon pricing | EU and UK carbon costs rising |
| Refinery capacity | Closures reducing UK capacity |
| Currency fluctuations | Weak pound increases import costs |
| Biofuel mandates | E10 petrol costs more to produce |
Price Projections
While no one can predict exact prices, many analysts expect:
| Timeframe | Petrol Price Range | Conflict Escalation Scenario |
|---|---|---|
| Current (2025) | £1.40–1.50/litre | £1.60–1.80/litre |
| 2026 (post duty changes) | £1.55–1.70/litre | £1.80–2.10/litre |
| 2028–2030 | £1.70–2.00/litre | £2.00–2.50/litre |
These are estimates, but the direction of travel is clear: fossil fuel costs are likely to rise, and could spike dramatically at any time.
How EVs Protect You From Fuel Price Shocks
Energy Independence
This is the fundamental difference: UK electricity is generated domestically, while petrol depends on imported oil.
When you drive an EV charged at home, your "fuel" comes from:
None of these care about what happens in the Strait of Hormuz. OPEC decisions don't affect your charging costs. Iranian military posturing doesn't change your electricity bill.
Every litre of petrol ties you to global oil markets. Every kWh of electricity keeps you independent.
Fixed Energy Costs
Unlike petrol, which fluctuates with global oil markets, home electricity prices are:
Cost Comparison: Now vs Projected
Current costs (2025):
| Vehicle | Cost per Mile | Annual (10,000 miles) |
|---|---|---|
| Petrol (45 mpg, £1.45/L) | 14.6p | £1,460 |
| EV (home, standard tariff) | 7p | £700 |
| EV (home, EV tariff) | 2p | £200 |
Projected costs (2027, if petrol rises to £1.70/L):
| Vehicle | Cost per Mile | Annual (10,000 miles) |
|---|---|---|
| Petrol (45 mpg, £1.70/L) | 17.1p | £1,710 |
| EV (home, standard tariff) | 8p | £800 |
| EV (home, EV tariff) | 2.5p | £250 |
The gap widens as fuel prices rise. EVs become relatively more attractive over time.
Electricity vs Petrol: Historical Stability
Over the past 20 years:
| Fuel | Price Change |
|---|---|
| Petrol | +120% |
| Domestic electricity | +80% |
| Off-peak electricity | +50% |
Electricity prices have risen more slowly and predictably than petrol. Off-peak rates (used for EV charging) have been particularly stable.
The Numbers: Switching Now vs Waiting
Scenario: Keep Petrol Car vs Switch to EV
Assumptions:
Cumulative fuel/energy costs over 5 years:
| Year | Petrol (rising prices) | EV (stable prices) | Annual Saving |
|---|---|---|---|
| 2025 | £1,460 | £200 | £1,260 |
| 2026 | £1,550 | £210 | £1,340 |
| 2027 | £1,650 | £220 | £1,430 |
| 2028 | £1,750 | £230 | £1,520 |
| 2029 | £1,850 | £240 | £1,610 |
| Total | £8,260 | £1,100 | £7,160 |
Result: Over 5 years, the EV saves over £7,000 on fuel alone — and the savings grow each year as petrol prices rise while electricity stays relatively stable.
Additional Protections EVs Offer
1. Solar Panel Integration
If you have or install solar panels, your "fuel" becomes essentially free during daylight hours. This completely insulates you from both electricity and petrol price changes.
Cost with solar: Potentially £0 for significant portion of driving.
2. Vehicle-to-Grid (Coming Soon)
From 2026–27, some EVs will be able to sell electricity back to the grid during peak hours. This could turn your car into a money-making asset rather than just a cost.
3. Falling Battery Prices
While petrol engine technology is mature (no cost improvements expected), battery prices continue to fall:
This means EVs will become cheaper to buy over time, while petrol cars won't.
4. Maintenance Savings
EVs have fewer moving parts and lower maintenance costs:
| Cost Type | Petrol | EV |
|---|---|---|
| Annual servicing | £200–400 | £100–150 |
| Brake wear | Normal | Reduced (regen braking) |
| Exhaust system | £200–500 (replacement) | None |
| Oil changes | £100–200/year | None |
| Timing belt | £300–600 (replacement) | None |
These savings compound alongside fuel savings.
But What About Electricity Prices Rising?
A fair question. However:
Electricity Price Caps
The UK government regulates domestic electricity prices through the Ofgem price cap, providing protection against extreme spikes.
Domestic Generation
The UK is investing heavily in wind, solar, and nuclear. More domestic generation means:
EV Tariffs
Smart tariffs like Octopus Go specifically protect EV drivers:
Worst-Case Scenario
Even if electricity prices doubled (unlikely), EVs would still be cheaper than petrol at projected future prices:
| Scenario | EV Cost per Mile | Petrol Cost per Mile |
|---|---|---|
| Current | 2p | 15p |
| Electricity doubles | 4p | 15p |
| Petrol rises 20% | 4p | 18p |
The EV remains significantly cheaper even under pessimistic assumptions.
Who Benefits Most From Switching Now?
High-Mileage Drivers
If you drive 15,000+ miles per year, savings are substantial:
Those With Home Charging
Access to cheap overnight electricity maximises savings:
Long-Term Vehicle Keepers
If you keep cars for 5+ years, total savings could reach £10,000+:
Those With Solar Panels
If you already have solar, adding an EV charger provides:
What About Buying an EV?
Upfront Costs
EVs are still more expensive to buy than equivalent petrol cars:
Total Cost of Ownership
When you factor in fuel, maintenance, and tax savings:
Best Value Options (2025)
| Vehicle | Price | Range | Notes |
|---|---|---|---|
| MG4 | £26,000 | 270 miles | Best value new EV |
| BYD Dolphin | £25,000 | 250 miles | Excellent efficiency |
| Nissan Leaf (used) | £12,000–18,000 | 150–200 miles | Affordable used option |
| VW ID.3 (used) | £18,000–24,000 | 250 miles | Quality used choice |
Summary
| Question | Answer |
|---|---|
| Will fuel prices rise? | Most likely yes, significantly |
| Can an EV protect you? | Yes, substantially |
| How much could you save? | £1,000–2,000+/year, growing over time |
| Is now a good time to switch? | Yes, before prices rise further |
| What about electricity prices? | More stable, and EVs remain cheaper even if they rise |
The bottom line: An EV is one of the most effective ways to protect yourself from rising fuel costs. The savings start immediately and grow larger as petrol prices increase. Combined with lower maintenance and potential tax benefits, switching to an EV is increasingly a financial decision as much as an environmental one.