⚡ Real EV Cost
Your personal EV savings report
15 July 2026 · prepared for Sample Household · based on your smart-meter data 2026-04-01 → 2026-06-30 (91 days, every half hour).
Your projected saving with an EV, on the right tariff
£1,085/yr
vs what the same miles cost you in petrol today — on EDF GoElectric, the cheapest of the 5 tariffs we modelled.
Where you are today
On Standard Variable (current) your electricity runs at £1,039/yr plus £1,291 of petrol — about £2,330/yr all in, scaled from your actual usage.
Every tariff, ranked
Projected annual cost with the EV included. The bar is your whole electricity bill; the table shows how much of it the car adds.
| Tariff | With EV | Without EV | EV adds | Saving vs petrol |
|---|---|---|---|---|
| EDF GoElectric | £1,178 | £972 | £206 | £1,085 |
| Octopus Intelligent Go | £1,213 | £1,006 | £207 | £1,084 |
| E.ON Next Drive | £1,278 | £1,013 | £266 | £1,025 |
| ScottishPower EV Saver | £1,345 | £1,094 | £251 | £1,040 |
| OVO Charge Anytime (PAYG) | £1,441 | £1,028 | £413 | £878 |
The working — EDF GoElectric, month by month
| Month | House kWh | EV kWh | Household | EV charging | Total | Saving vs petrol |
|---|---|---|---|---|---|---|
| 2026-04 | 257 | 233 | £79.85 | £16.30 | £96.15 | £89.74 |
| 2026-05 | 266 | 248 | £82.51 | £17.30 | £99.81 | £92.28 |
| 2026-06 | 257 | 254 | £79.85 | £17.79 | £97.64 | £88.25 |
What's behind these numbers
- EV charging modelled at ~56.6 kWh/week at home, placed into each tariff's cheapest hours (including charging losses).
- Petrol baseline: £1,291/yr for the same annual mileage.
- Costs are computed from your actual half-hourly usage against each tariff's real rate structure, then scaled to a year from the days of data we have.
- Only 3 month(s) of usage data cached; requested 12. Annual figures are scaled up from the available days.
What next?
If this report was useful, three things help us enormously: switch via the link, answer the one-question survey, or tell one friend who's deciding on an EV.
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