Last week Christoph Klie and Robert Annuth had the opportunity, together with colleagues from the Institute for Mechatronics in Mechanics iMEK and from morEnergy GmbH, to perform measurements on a battery-powered DC ferry in Hochdonn (Schleswig Holstein) on the Kiel Canal as part of the DC power systems project SuSy. Many thanks to the WSV - Federal Waterways and Shipping Administration and Siemens Energy for the exciting insights and the excellent cooperation during the measurement.