Owning an EV is already significantly cheaper than owning one of their fossil-fuel-guzzling rivals. Canadian academic, Ingrid Malmgren, estimates a total saving of around €5000 over the lifetime of a vehicle. With a bidirectional AC integrated EV charger, instead of a unidirectional one, you can save even more if you live in a country where energy costs vary during the day. For instance, in some countries, like Spain, if you charge your vehicle during the night when electrical demand is low, you will pay less for electricity than during the day’s peak hours.