EV tariff whole-home comparison
Is an EV tariff worth it with 3,000 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 £311/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% | £1,794 | £1,746 | EV tariff saves £49 |
| Base | 26p | 31/8p | 90% | £1,794 | £1,484 | EV tariff saves £311 |
| Strong off-peak use | 28p | 29/7p | 100% | £1,918 | £1,320 | EV tariff saves £598 |
Rates are illustrative. Check current time windows, standing charges, eligibility and tariff conditions before relying on a comparison.