Charging an Electric Vehicle at a Charging Point of a Property

A method for charging an electric vehicle at a charging point of a property equipped with a home energy management system, the method comprising:

• transmitting charging parameters from the electric vehicle to the home energy management system and to an external IT system that is associated with the electric vehicle when the electric vehicle is connected to the charging point;
• generating, by the home energy management system, a charging plan for the electric vehicle at least on a basis of the charging parameters transmitted by the electric vehicle, usage information of the property, and tariff information of at least one energy supplier;
• transmitting, by the home energy management system, the charging plan to the external IT system;
• analyzing, by the external IT system, the charging plan on a basis of at least one additional charging parameter of the electric vehicle that was not transmitted to the charging point from the electric vehicle;
• and
• at least one of, on a basis of a result of the analysis:
• releasing, by the external IT system, the charging plan transmitted by the home energy management system unchanged, and charging the electric vehicle using the charging plan that was released unchanged;
• generating, by the external IT system, a new charging plan, and charging the electric vehicle using the new charging plan;
• or
• rejecting, by the external IT system, the charging plan transmitted by the home management energy system, and charging the electric vehicle using a previously valid charging plan.

A charging infrastructure for charging an electric vehicle, comprising:

• at least one charging point configured to perform bidirectional charging of electric vehicles and receiving charging parameters from an electric vehicle connected to it, wherein the at least one charging point is connected to a home energy grid, which is connected to a public power supply grid via a grid connection point;
• a home energy management system configured to:
• control at least one electric buffer storage device connected to the home energy grid on a basis of electricity usage information in the home energy grid and tariff information relating to electrical energy flowing via the grid connection point;
• use an electric vehicle connected to the at least one charging point as a buffer storage device of the home energy grid;
• and
• generate a charging plan for controlling the bidirectional charging of the electric vehicle;
• and
• an external IT system communicatively coupled with the home energy management system, and configured to:
• analyze the charging plan generated by the home energy management system at least on a basis of one additional charging parameter of the electric vehicle, which was not transmitted to the charging point from the electric vehicle;
• and
• on a basis of a result of the analysis, at least one of:
• release the charging plan transmitted by the home energy management system unchanged,
• generate a new charging plan, or
• reject the charging plan transmitted by the home energy management system;
• wherein:
• if the external IT system releases the charging plan unchanged, the electric vehicle can be charged using the charging plan which was released unchanged,
• if the external IT system generates the new charging plan, the electric vehicle can be charged using the new charging plan, and
• if the external IT system rejects the charging plan, the electric vehicle can be charged using a previously valid charging plan.