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Single charge e-ferry voyage The Danish 1,000 tonne electric ferry boat has completed its 92km voyage on a single battery charge
The 60m-long electric ferry “Ellen” has a fixed 40km route in Denmark
the world. Ellen set a new world record on June 9th this year in Sønderborg, Denmark, where leaders from industry and the govern- ment joined the International Energy Agency (IEA) for the 7th Annual Global Conference on Energy Efficiency. On her return from the conference, where participants explored how international am- bitions on energy efficiency can be translated into faster and stronger real-world progress, Ellen sailed 50 nautical miles (92km) on a sin- gle battery charge. Senior lecturer at Marstal Naval Academy in Denmark, Henrik Hagbarth Mikkelsen, who helped specify the technical solutions for the ferry during its design-phase, was aboard for the trip. “The 92km trip on a single battery charge is the longest planned distance for an electric ferry able to carry both passengers and vehi- cles to date anywhere on the globe. We are talking about a clear record. On its normal,
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he islands of Ærø and Als in Southern Denmark are connected by Ellen, the longest ranging fully electric ferry in
daily trips, the ferry sails 22 nautical miles, or 40km, from harbour to harbour before recharging,” he says.
Ellen does not emit carbon and operates at
24 per cent lower cost than a new diesel ferry. She started sailing in 2019 and regularly car- ries up to 30 vehicles and 200 foot passen- gers on its route. Danfoss supplied the electric Editron driv-
etrains and propulsion motors for the ferry and Kimmo Rauma, vice-president at Danfoss Editron, says that Ellen is an excellent exam- ple of the future for electric transport. “It’s cleaner, greener and more efficient than her fossil fuel competitors. Electrifying maritime transport is a clear-cut way to re- duce greenhouse gas emissions,” he says. Currently, 27 per cent of all global energy-re-
lated CO2 emissions come from transport. With 4.27 billion passengers and 373 million vehi-
cles transported by ferry each year, ferries are significant carbon emitters and often sail close to cities where they add to the already critical air pollution levels. Electric ferries such as Ellen can help solve the problem. C&VT
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