Enter Your Fleet Details — Get a UK TCO & Savings PDF
Compare EV vs diesel pence-per-mile and whole-life TCO for UK fleets. All currency GBP.
🚀 BUILD VERSION UK-PRESET-5 – 20/08/2025
Defaults from RAC Fuel Watch (diesel), TfL (ULEZ/CC), GOV.UK (VED). Adjust for your fleet.
Inputs (UK)
Fuel economy unit:
Live conversions: 50.0 MPG (UK) • 5.6 L/100 km • 41.6 MPG (US)
Charging scenario (sensitivity)
Only ‘My price’ uses your entered rate. Options marked * use typical tariffs and losses.
Reimbursement policy (EV business miles)
Fleet composition (optional)
UK charges & tax
Results
Fleet savings (total)
£57,227
Simple payback
2.8 yrs
TCO – per vehicle (discounted)
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TCO – ICE (per vehicle)
£38,049
TCO – EV (per vehicle)
£35,760
Fleet ICE (total)
£951,216
Fleet EV (total)
£893,989
Fuel economy snapshot: 50.0 MPG (UK) · 5.6 L/100 km · 41.6 MPG (US)
As of Aug 2025 — RAC Fuel Watch (diesel), TfL (ULEZ/CC), GOV.UK (VED), HMRC (AER/NIC).
EV VED auto: £10 (year 1), then £195/yr; +£425 ECS years 2–6 if list price >£40k.
Employer NIC on EV BiK auto: BiK 3%→4%→5% on P11D (Class 1A at 15%).
EV ULEZ assumed £0/day; Congestion Charge £0/day only if CVD registered and before 25 Dec 2025.
AER: if selected, employer reimburses 7p/mile instead of paying kWh.
Employer NIC on EV BiK auto: BiK 3%→4%→5% on P11D (Class 1A at 15%).
EV ULEZ assumed £0/day; Congestion Charge £0/day only if CVD registered and before 25 Dec 2025.
AER: if selected, employer reimburses 7p/mile instead of paying kWh.
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Key assumptions
| Vehicles | 25 |
| Annual mileage | 12,000 miles |
| Diesel price | £1.50 per litre |
| Electricity price | £0.28 per kWh |
| Analysis period | 4 years at 8.0% discount rate |
Cost breakdown (per vehicle, discounted)
| Diesel cost | £5,653 |
| Electricity cost | £3,561 |
| Maintenance | £2,385 ICE / £1,590 EV |
| Insurance | £2,981 ICE / £3,312 EV |
| Taxes & charges | £5,614 ICE / £2,424 EV |
| Residual value | £10,584 ICE / £13,407 EV |
| Charger cost | £280 |
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