OCPP stands for Open Charge Point Protocol. It enables the administrator to manage, monitor and charge the use of the charging station.
Via a backend, it allows the administrator to choose who can use a (particular) charge point and what the consumption is per user.
Charging stations with an OCPP backend are often used for business settlements.
To use an OCPP backend, a subscription must be purchased. The cost for this varies between 4-6 euros per month. This subscription can be taken out through Wallbox Discounter. But it can also be done through external parties such as ANWB or Vattenfall.