Energy supply system

An energy supply system, in particular for a tool which can be attached or is attached to a hoist, having a line storage for winding and unwinding at least one energy line around a winding center of the line storage device, wherein at least one carrier is provided for the at least one energy line, and the line storage has an opening for the inlet and outlet of the carrier and the energy line, wherein

• the at least one carrier can be guided through the opening for guiding the carrier and the energy line in sections in the line storage by guide means via a first guide section through a first guide arch, and via a second guide section, which is adjoining the first guide arch, through a second guide arch, and via a third guide section, which is adjoining the second guide arch, and lies further inwards, compared with the first guide section, relative to the winding center—and possibly further guide arches and guide sections—to the winding center of the line storage.