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Incat Tasmania selects Wärtsilä solutions for battery-electric lightweight Ro-Pax ferry

Technology group Wärtsilä will power the biggest battery electric ship yet built with its battery-electric propulsion system and waterjets. The vessel is a new ferry being built by Incat Tasmania and has been ordered by Incat’s long-term South American customer, Buquebús. With an overall length of 130 meters, the ferry will be the largest ever vessel of its type. It will also be the world’s first electric, lightweight catamaran. The order with Wärtsilä was booked in July 2023.


The uniquely designed vessel will be fully battery powered, with e-motor driven Wärtsilä waterjets as the main propulsors. The battery modules and energy storage system package is four times larger than on any electric/hybrid ship currently operating.

The vessel will operate between Argentina and Uruguay. It will carry 2,100 passengers and 225 vehicles.



The overall high-efficiency of this next-generation ferry represents a game-changing advance in catamaran design. We are proud to have contributed our strong know-how in integrating our ship electrification solutions and propulsion equipment. The battery power pack that we are supplying will be the largest ever supplied with a unique eight waterjet propulsor configuration. The eight e-motor waterjet propulsion configuration is the most efficient available on today’s market for this speed range and type application while boasting all the benefits from Wärtsilä’s axial flow waterjet technology—low weight, shallow draft, superb maneuverability, and low maintenance.

— Roger Holm, President of Wärtsilä’s Marine Power business

The full Wärtsilä scope of supply includes Wärtsilä’s own energy management system, the power conversion system, DC shore charging system, the 40 MWh battery modules, the DC hub, the eight electric motors, eight Wärtsilä axial flow WXJ1100 waterjets, and the ProTouch propulsion control system.

Delivery of the Wärtsilä equipment is scheduled for the latter part of 2024, and the vessel will be delivered in 2025.



This is criminal.

When the lithium batteries go into thermal runaway, there's nowhere to go but jump overboard.

Whatever happened to product liability? Gone.

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