Shifting to an EV tariff won’t guarantee savings. I’m currently on 20p/kW fix and the EV tariffs have much higher day rates. Combine that with us being quite heavy electric users in home and low annual mileage, EV tariff wouldn’t benefit us……
…although if Tomato energy go bust (there’s a fairly good chance), then I’d have to do the sums again with whatever tariffs are available at the time.