Wärtsilä has announced that it will supply the first reference for its new Wärtsilä 25DF dual-fuel engine for a series of sail-assisted luxury cruise newbuildings. The series of vessels are being built at the Chantiers de l’Atlantique (CdA) shipyard in France for Orient Express Silenseas, part of French hospitality group, Accor. 

The order for a pair of sail-assisted luxury cruise vessels includes options for a further two vessels. The order was booked by Wärtsilä in May 2023.

The Wärtsilä 25DF engine is the most efficient and most environmentally friendly marine engine in its power range. It features a two stage turbocharging system, common rail fuel injection, and cylinder wise combustion control. This enables unparalleled power density and efficiency across the full operating range, delivering low fuel consumption and reduced emissions.