A power distribution system is provided for an aircraft on the ground, including a first electrical load, operably coupled to the aircraft on the ground and configured to receive at least a first portion of a predetermined maximum input power provided by a power supply; at least one second electrical load, electrically coupleable to the aircraft on the ground and configured to receive at least a second portion of the predetermined maximum input power provided by the power supply, and a controller, adapted to monitor at least one parameter of the power consumed by any one of the first and second electrical load, and control the power consumption of at least the first electrical load so that the total power consumption of the first and second electrical load does not exceed the predetermined maximum input power; wherein the predetermined maximum input power is provided via a single power line between the power supply and an input port of the first electrical load.