Method of Operating a Charging Station System

A method for operating a charging station system with which an energy storage of a motor vehicle is charged, wherein the charging station system comprises at least two charging stations, a back end, and a communication device which is managed by a user for charging the energy storage, comprising the following steps:

• a) the user starts an application of the communication device, which displays the charging stations to the user,
• b) the user uses the communication device to select a charging station at which the user plans to charge the energy storage of the motor vehicle,
• c) the communication device sends at least user-specific data or charging station-specific data to the back end, which the back end receives,
• d) the back end checks at least the user-specific or charging station-specific data sent by the communication device to the back end,
• e) the back end sends tariff data at least to the communication device or to the charging station selected by the user, which at least the communication device or the charging station receives,
• wherein
• with or after the sending of the tariff data the back end starts a timer which comprises a predetermined running time, wherein after the expiry of the predetermined running time the tariff data lose their validity and the selected charging station for charging the energy storage of the motor vehicle is blocked for the user.