Devices (1) for controlling gates (21-24) arranged to control amounts of power to be supplied to loads (51-54) via cables (2) may comprise receivers (11) for receiving requesting signals from the gates (21-24), analyzers (12) for analyzing requests defined by the requesting signals in view of available cable power capacities, generators (13) for in response to analysis results generating instructions for the gates (21-24) and transmitters for transmitting instructing signals defining the instructions to the gates (21-24). The analyzers (12) may analyze the requests in view of load-information comprising steady-state-information/transient-state-information. The devices (1) may comprise communicators (15) for communication with auxiliary converters (31-33) coupled to auxiliary sources (41-43) such as batteries (41) and solar panels (42, 43) and may comprise predictors (16) for predicting the available cable power capacities. The improved devices (1) are no longer informed afterwards by the gates (21-24) but are informed beforehand by the gates (21-24) and control these gates (21-24) in response to the analysis results.