Plug & Charge is enabled by ISO 15118, the international standard for charging electric cars. When using Plug & Charge, you don't need to use additional cards, apps or manual authentication steps. Instead, you can just connect the charging cable to your car which automatically recognises and authenticates your car, allowing the charging process to start.
The number of charging stations that support Plug & Charge is limited and all types of charging might not be supported. If the charging station doesn't support Plug & Charge, you need to authorise yourself at the charger.
There are other ways that can help you simplify your charging process. By using your car's VIN number or MAC address, you can connect the information to different apps and charging providers. Your car can then be automatically identified at the charging station, without any need for additional cards. However, the car's displays won't show any information or instructions for these methods.