A system configured to comprise several groups of load devices and a management device , wherein: - each load device comprising a load and a detection device , wherein the detection device is configured to communicate with a management device and comprises: - a detector configured to detect a switching of a load , - a timer configured to determine and store a timing of the switching of the load , and - a transmitter configured to transmit information to the management device , which information defines the timing of the switching of the load as well as an identification characterized by - the management device configured to distinguish the groups of load devices from each other, wherein the management device comprises: - a receiver configured to receive the information from the load devices , and - a controller configured to control the switching of the loads , wherein a first switching of first loads in a first group is configured to take place at a first moment in time, and wherein a first switching of second loads in a second group is configured to take place at a second moment in time different from the first moment in time; - which system is configured to commission the several groups of load devices at the hand of the information transmitted from each one of the load devices to the management device . - each load device comprising a load and a detection device , wherein the detection device is configured to communicate with a management device and comprises: - a detector configured to detect a switching of a load , - a timer configured to determine and store a timing of the switching of the load , and - a transmitter configured to transmit information to the management device , which information defines the timing of the switching of the load as well as an identification characterized by - a detector configured to detect a switching of a load , - a timer configured to determine and store a timing of the switching of the load , and - a transmitter configured to transmit information to the management device , which information defines the timing of the switching of the load as well as an identification characterized by - the management device configured to distinguish the groups of load devices from each other, wherein the management device comprises: - a receiver configured to receive the information from the load devices , and - a controller configured to control the switching of the loads , wherein a first switching of first loads in a first group is configured to take place at a first moment in time, and wherein a first switching of second loads in a second group is configured to take place at a second moment in time different from the first moment in time; - a receiver configured to receive the information from the load devices , and - a controller configured to control the switching of the loads , wherein a first switching of first loads in a first group is configured to take place at a first moment in time, and wherein a first switching of second loads in a second group is configured to take place at a second moment in time different from the first moment in time; - which system is configured to commission the several groups of load devices at the hand of the information transmitted from each one of the load devices to the management device . <EOS>