As has been said, really only affects old Economy 7 meters. There is a a small irony which is that any EV user with a dedicated EV focused tariff will already be on a smart meter, not a radio switch meter.
I really don't understand the reluctance of some of the public (not suggesting any here is in that category) to use smart meters (where they are available - which is still not everywhere and as such a travesty). They offer so many benefits to home owners with few drawbacks. The only real drawback is if you are using a smart tariff, and some of your data is lost and unretrievable, you may be charged at a higher rate - the exact rate you would have been on on a "dumb" meter.
I have several neighbours who I have suggested (persuaded would be way too strong) would benefit from a smart meter, and when shown the savings available, they have leapt to get them and are saving literally hundreds of pounds a year.
Does anyone have insight on the reluctance ? I am genuinely curious.