EV tariff whole-home comparison
Is an EV tariff worth it with 5,000 kWh of EV charging per year?
The comparison also includes 3,200 kWh/year of non-EV household electricity so a higher daytime rate is not ignored.
Base: 26p comparison · 31p peak · 8p off-peak · 90% EV off-peakEV tariff saves £625/year
Standing charges held at 50p/day in both worked examples
Whole-home sensitivity
| Scenario | Comparison rate | EV peak/off | EV off-peak share | Comparison cost | EV tariff cost | Difference |
|---|---|---|---|---|---|---|
| Cautious | 26p | 33/10p | 70% | £2,314 | £2,084 | EV tariff saves £231 |
| Base | 26p | 31/8p | 90% | £2,314 | £1,690 | EV tariff saves £625 |
| Strong off-peak use | 28p | 29/7p | 100% | £2,478 | £1,460 | EV tariff saves £1,018 |
Rates are illustrative. Check current time windows, standing charges, eligibility and tariff conditions before relying on a comparison.