A method for transferring energy between first and second units with first and second meters and subscriptions to first and second backend platforms, as well as a first unit for supporting such energy transfer, where the backend platforms execute an authentication procedure and a switch is unbarred by a first control box upon successful execution of the authentication procedure. A second control box sends an amount of the transferred energy measured by the second meter to the first control box, energy consumption data is sent to the backend platforms, and a consumption clearing procedure is executed between the first and the second units at the backend platforms by means of the received energy consumption data.