With ground power units (GPU) we guarantee the energy supply for aircrafts in stand-by positions and starting of the engines. Our ground power units GPU can be supplied in the power range from 40 -180 kVA with the following voltages 200/115 V AC (400 Hz) as well as combo-units with 56 V (DC) or 28 V (DC).The generating sets are supplied as compact trailer units with silencing enclosure or as automotive units. Additional equipment e.g. light towers is possible.