The Stena Jutlandica has completed her first month of operation as a battery hybrid vessel.
Experiences from these first weeks have exceeded expectations, Stena Line claimed.
“It’s really exciting to be running with electrical power on the ‘Stena Jutlandica’. This project is an important part of our focused efforts to find ways of reducing our impact on the environment. As both the size and cost of batteries decrease, battery operation is becoming a very attractive alternative to traditional fuel for shipping since emissions should be possible to completely eliminate in the future,” said Erik Lewenhaupt, Stena Line’s Head of Sustainability.
The project to convert ‘Stena Jutlandica’ operating on the Gothenburg/Frederikshavn route to a battery hybrid vessel is being carried out in phases.
Phase one, which is currently underway, involves switching to electrical operation to reduce the use of diesel generators, as well as for manoeuvring and powering the bow thrusters when the ship is in port.
The second step will involve the battery power being connected to two of the four prime movers, meaning that the ‘Stena Jutlandica’ will be able to run on electrical power for about 10 nautical miles inside the Gothenburg archipelago to Vinga Lighthouse.
In phase three, all four primary engines 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.
“As an example, we’ve been able to strongly reduce our use of the diesel generators and now only need to use one instead of three. Another positive effect concerns safety; by having constant access to electricity, we minimise the risk for power outages,” said Johan Stranne, the vessel’s Senior Chief Engineer.
In phase one, the environmental savings from using battery power for reduced generator usage and manoeuvring in port amounts to about 500 tonnes of fuel, 1,500 tonnes of CO2. This in turn corresponds to the annual emissions from about 600 cars.
The reason for the phased project execution is to enable testing and assessment while the conversion is underway. If the project is successful, battery power can be considered for other vessels within the Stena Line fleet. Work with phase two has begun and the goal is for implementation within about three years.
The first phases technical solutions were developed by Stena Teknik in collaboration with the Callenberg Technology Group, with half of the funding for the project coming from the Swedish Transport Administration and the EU.