The United Steamship Company DFDS Seaways (Det Forenede Dampskibs-Selskab) from Denmark, a Northern Europe shipping group, has equipped three of its RO-PAX ships (Dover, Delft and Dunkerque-Seaways) with the fuel consumption measurement from KRAL. RO-PAX ships are combined ferries that transport both passengers and freight. In each ship the consumption of all four main motors, the power generation units and of the two burners are measured. Each fuel consumption measuring system has a BEM 500 electronic indication unit locally.