Method for managing the energy demand of electrical consumers in a electric Network

The method involves transmitting a power specification message and priority information from at least one load (2-4) to a central management device (1), whereby the management device processes the data and allocates the load a defined energy amount depending on the load on the electrical network (7), the power specification and/or the priority of the load and transmitting a control signal with which the power consumption of the load is set to a communications unit (5) or a load control device. An independent claim is also included for an on-board vehicle electrical system with several loads.