Method for controlling charging stations for electrical vehicles, having the steps of - grouping at least two charging stations into a group, wherein several charging stations of the group are connected with a common transformer station, - exchanging at least actual charging parameters of the charging stations within the group, wherein actual charging parameters comprise information regarding the currently provided electrical power at the charging station, - exchanging a charging prediction being established by a charging controller being arranged in an electrical vehicle being connected to the charging station, comprising a current load curve for charging the electrical vehicle in the remaining duration of loading, - estimating a future energy need of the transformer station using a daily load curve of at least one charging station of the group from a database, - creating a load prediction for the group as a function of at least the actual charging parameters, the charging prediction and the daily load curve, - adaptively determining reference charging parameters, comprising at least a maximal charging amperage and a charging time for the charging stations of the group as a function of the load prediction, such that on the one hand the power provided by the charging stations of the group do not exceed a maximum transformer power and on the other hand the electrical vehicles connected to the charging stations of the group receive the power required for charging their batteries within their respective remaining charging durations, - negotiating of charging parameters with the electrical vehicle depending on the reference charging parameters, wherein in the event of varying reference charging parameters, the charging parameters are renegotiated with the electrical vehicle during a charging phase. - grouping at least two charging stations into a group, wherein several charging stations of the group are connected with a common transformer station, - exchanging at least actual charging parameters of the charging stations within the group, wherein actual charging parameters comprise information regarding the currently provided electrical power at the charging station, - exchanging a charging prediction being established by a charging controller being arranged in an electrical vehicle being connected to the charging station, comprising a current load curve for charging the electrical vehicle in the remaining duration of loading, - estimating a future energy need of the transformer station using a daily load curve of at least one charging station of the group from a database, - creating a load prediction for the group as a function of at least the actual charging parameters, the charging prediction and the daily load curve, - adaptively determining reference charging parameters, comprising at least a maximal charging amperage and a charging time for the charging stations of the group as a function of the load prediction, such that on the one hand the power provided by the charging stations of the group do not exceed a maximum transformer power and on the other hand the electrical vehicles connected to the charging stations of the group receive the power required for charging their batteries within their respective remaining charging durations, - negotiating of charging parameters with the electrical vehicle depending on the reference charging parameters, wherein in the event of varying reference charging parameters, the charging parameters are renegotiated with the electrical vehicle during a charging phase.