Preparing to launch entirely emission-free service between Helsinki and Tallinn, Finland’s Viking Line has unveiled its concept for what would be the world’s largest electric passenger-car ferry. It says that its concept

Image: Viking Line
Preparing to launch entirely emission-free service between Helsinki and Tallinn, Finland’s Viking Line has unveiled its concept for what would be the world’s largest electric passenger-car ferry. It says that its concept vessel, called Helios, is proof that a green maritime corridor across the Gulf of Finland could be realized as early as the beginning of the 2030s.
With a battery capacity of approximately 85–100 megawatt hours (MWh), Helios could transport 2,000 passengers across the Gulf of Finland in just over two hours. The length of the concept vessel is 195 meters, the width 30 meters and the speed approximately 23 knots. The freight capacity on board is approximately 2 lane kilometers.
That’s significantly longer than the 130 meter all electric, aluminum hulled catamaran vessel that Incat Tasmania is building for South American ferry operator Buquebus. That vessel will operate entirely on battery-electric power when it enters service between
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