At 65p per full charge, it’s somewhat negligible. That’s barely half a litre of petrol, and half a litre of petrol doesn’t get us 40 miles. Not even fractional.
To be fair though, we did drive a little spicy, by my estimate we could’ve gotten around 140mpg (highest we’ve seen was 130mpg, but only momentarily until we lost 10 by putting the foot down).
After seeing especially diesel prices (not that petrol is great either), i think that’s the way forward to us. Something to hoon about in properly, and once the responsibility kicks in, it does economical too.