'World's largest’ fully electric passenger ferry planned for Helsinki-Tallinn route
E&T
JUNE 10, 2025
Travelling at a speed of 23 knots, Helios will be able to transport approximately 2,000 passengers and 650 cars in just over two hours. The 195-metre-long and 30-metre-wide vessel will have a battery system with a capacity of 85-100 megawatt hours (MWh). million in 2024, and this is set to increase to 11.6 million by 2040.
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