Stena Line’s hybrid-electric ferry recording huge operational and environmental savings

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The Stena Jutlandica passenger-vehicle ferry has completed its first month of operation as a hybrid-electric vessel, with the operator reporting that the first weeks of service between Gothenburg, Sweden, and Frederikshavn, Denmark, have exceeded the company’s expectations. The environmental savings made from using battery power for reduced generator usage and maneuvering in port amounts to approximately 500 tons of fuel saved and 1,500 tons of reduced CO2. This corresponds to the annual emissions from approximately 600 cars. “It’s really exciting to be running with electrical power on the Stena Jutlandica,” said Erik Lewenhaupt, head of sustainability at Stena Line. “As both the size and cost of batteries decrease, battery operation is becoming a very attractive alternative to conventional fuel for shipping, as it should be possible to completely eliminate emissions in the future.” The project, which is being partly funded by the Swedish Transport Administration and the EU, is being carried out in several steps to enable testing and assessment while the vessel is underway. Step one has seen the vessel switch to electrical operation to reduce the use of diesel generators, as well as for maneuvering and powering the bow thrusters when the ship is in port. The technical solutions implemented here have been developed by Stena Teknik in collaboration with Callenberg Technology Group. For step two, battery power will be connected to two of the four primary machines, which means that the Stena Jutlandica will be able to run on electrical power for about 10 nautical miles inside the archipelago out to Vinga Lighthouse in Gothenburg, Sweden. Work on step two has begun and the goal is for implementation within approximately three years. During step three, all four primary machines will be connected to the batteries and the ship will be able to cover the 50 nautical miles between Sweden and Denmark solely on electrical power. If the project is successful, battery power will be considered for other vessels within the Stena Line fleet. According to Johan Stranne, senior chief engineer on the Stena Jutlandica, a number of benefits have been noted. “We’ve been able to significantly reduce our use of the diesel generators and now only need to use one instead of three. Another positive effect concerns safety: having constant access to electricity, we minimize the risk for power outages.”

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Dean has been with UKi Media & Events for over a decade, having previously cut his journalistic teeth writing and editing for various automotive and engineering titles. He combines extensive knowledge of all things automotive with a passion for driving, and experience testing countless new vehicles, engines and technologies around the world. As well as his role as editor-in-chief across a range of UKi's media titles, he is also co-chair of the judging panel of the International Engine of the Year Awards.

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