The invention relates to a method for exchanging information data between an electrical load and arranged between the consumer and the electrical supply network resources, wherein the load includes a load detection unit that comprises at least a digital type plate that is stored in an electronically readable memory means, and is coupled via a coupling impedance to the supply lines between the consumer and electric supply network, through which the data from a transmitter in the consumer recognition unit upon initialization by the operating means by means of a temperature above the mains frequency carrier frequency to the supply lines are modulated. It is envisaged that initially loads a valve disposed in consumer recognition unit, energy-storing power supply during a consumer recognition phase at the beginning of each start-up of the consumer, after completion of loading of the power supply in the consumer recognition unit stored data with a data burst to the lying between consumers and electric supply network resources wherein the transfer is repeated several times, the data burst of a preamble and the data to be transmitted is consumer and the transmission is controlled by a control part of the consumer recognition unit to be transmitted. The invention further relates to a ...