In Ireland, that has not yet happened. Excise duties are extremely high on petrol and diesel and EV charging has none. However, fast charging is already more expensive.

Part of this is that EVs are much more expensive than the average car (over the whole fleet - new cars are much closer in price), and so EV drivers are self-selected to be wealthier, therefore willing to pay more. Another factor is the lack of competition and alternatives, especially at motorway petrol stations.