All the existing and new infrastructure for EV charging will be requested to adopt an interoperable platform supporting an Open Charge Point Protocol.
Since the charging infrastructure will be interoperable a user from within Europe may simply register with the local Charging Pillar Operator and use the pay as you go system.
Other options to enable cross border charging include opting for a Charging Pillar Operator which supports an e-Roaming platform or an ad hoc type charging. All these methods have been considered and included as a potential means of charging methods which do not necessarily require the need to have a contract with any CPO (in the case of ad-hoc charging). Rates might differ.