I have looked at EV v Petrol or diesel, and it is very hard to compare.
The major problem is you have no idea when a battery will fail, so it is a massive gamble. Rent an EV then not a problem, someone else pays for a battery replacement, so EV v petrol or diesel is mainly down to mileage covered. Is it economical to rent?
As a fleet owner, we win some, and we lose some, so on average an EV wins. But as a single car/van owner, is it worth the risk, and the cost of a battery means if one fails, likely the car/van is written off.
So in real terms, can one afford to gamble?
The way the government has acted, banging a tax on a car/van which when bought was tax-free, means one has to consider what next.
So 8.625p/kWh seems great, but the big question is for how long, also as it stands that's for 5 hours, so at 7 kW that's 35 kWh, very few vans have a 35 kWh battery, so some of the power will be at a higher rate.
OK with static batteries you can also charge them, either from the grid or from solar, but then you must add that cost.
I take my car out, and it does not matter where I fill up, the cost of petrol does not vary that much, but an EV we are looking at huge differences depending on where you fill up.
So down to nitty-gritty do your customers care if classed as environment friendly? I clearly don't as I had a firm from 70 miles away fit my double glazing. All I cared about is what I paid.
So does having an EV get you more custom?