Gotlandsbolaget (the shipowner of Birka Gotland) has confirmed an order for a next-generation high-speed ferry, developed in collaboration with Austal Ltd (an Australia-based shipbuilding company and defense contractor).
The vessel, designed for climate-neutral passenger shipping operations and incorporating advanced propulsion technologies, is set to pioneer new solutions in the maritime sector.
Initially announced in April 2023, the 130-m (426-ft) multi-fuel ferry is designed to operate on a range of alternative fuels, including hydrogen. Since the project’s inception, Austal and Gotland Tech Development have engaged with global technology providers to refine system arrangements and select key equipment. A notable feature of the vessel’s propulsion system is the reuse of engine exhaust to enhance propulsion efficiency and reduce emissions. In October 2024, the design received Approval in Principle from DNV.
Austal has outlined that the vessel will employ a highly efficient combined-cycle propulsion system, incorporating both gas and steam turbines - an industry first for a high-speed craft. The gas turbines will be integrated into the ferry’s drive train and will be capable of operating on multiple fossil-free fuel types. The design also includes provisions for future conversion to hydrogen, positioning the vessel for long-term adaptability as fuel availability evolves.
Recognizing the uncertainty surrounding alternative fuel supply within the maritime sector, the vessel's multi-fuel capability ensures operational flexibility. Additionally, significant effort has been invested in optimizing energy efficiency, including the development of a streamlined hull design, weight reduction strategies, and onboard energy consumption improvements.
The ferry will accommodate up to 1500 passengers and 400 passenger cars, achieving speeds of up to 29 knots. It is expected to complete the crossing between the Swedish mainland and Gotland in just over 3 hours, operating primarily during peak travel seasons in summer, and spring and fall.
Austal estimates the construction contract value to be AUD 265-275 million (USD 168-175M).
The vessel will be constructed by Austal Philippines Pty Ltd (shipyard in Cebu), with work commencing in 2026. The hull will be built from aluminum, with ~60% sourced from renewable energy-based production.
Upon delivery in mid-2028, the vessel will sail to Gotland, with its exact entry into service yet to be determined. However, it is expected to be deployed on the route by the spring of 2029.