Tech

Electromobility: Denmark puts the largest electric ferry into service

There is already one in Norway, and now Denmark also has an electric-powered ferry: Ellen will commute several times a day from the beginning of September between the ports of Søby and Fynshav. It is currently the largest electrically operated ferry.

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E-Ferry Ellen is almost 60 feet long and 13 feet wide. It can carry about 200 passengers and about 30 cars or 5 trucks. The ferry in the frame a European project was developed between Fynshav on the island of Als and Søby on Ærø. She completed her maiden voyage last week. Soon she will start her regular operation.

The drivetrain, designed by the Danish company Danfoss, consists of two electric machines with a capacity of 750 kilowatts each. In addition, there are two side thrusters that facilitate maneuvering. They have an output of 250 kilowatts each. Danfoss also supplies the energy management system and builds the charging station in Fynshav.

The battery comes from the Swiss company Leclanché, which also builds the battery for the Norwegian cargo ship Yara Birkeland. The Ellen 840 battery modules have a capacity of 4.3 megawatt hours.

The range is about 22 nautical miles, just under 41 kilometers. That's enough for the route from Fynshav to Søby and back; The ferry is scheduled to travel five to seven times a day during regular service. It is charged with a capacity of 4.4 megawatts in the port of Fynshav. The cruising speed of the ferry is between 13 and 15.5 knots, which is 24 to almost 29 kilometers per hour.

The ship weighs 747 tons. Of this, around 50 tons are accounted for by the batteries. To save weight, the bridge was not made of steel, but made of aluminum. The furniture is made of recycled paper.

So far, diesel-hybrid ferries are on the Vogelfluglinie between Puttgarden on Fehmarn and Rødby in Denmark. They are quieter than diesel-powered ferries and the air on deck is better.

The world's first electric ferry, the Ampere, has been in service in Norway since 2015. It brings cars and pedestrians across the Sognefjord. The ship is not only ecological, but also very cheap in operation. Operator Fjord1 therefore commissioned the construction of seven more electric ferries last year.