Bureau Veritas has awarded Approval in Principle (AiP) to Ponant, a global leader in the cruising industry, for its innovative twin-screw sailing passenger vessel concept, Swap2Zero. This development represents a notable step forward in sustainable maritime travel, with a design that prioritizes low-carbon technologies and wind-assisted propulsion.
The 186.2-meter vessel is designed for transoceanic voyages and integrates multiple renewable energy sources, including wind, solar, and low-carbon fuels. Its design focuses on achieving near-zero emissions through 3 key principles: maximizing energy efficiency, minimizing consumption, and optimizing the use of renewables. Wind propulsion serves as the primary energy source, complemented by solar panels, hydrogen fuel cells, and bio- and e-methane fuels.
Key features of the Swap2Zero vessel include up to 50% wind-assisted propulsion, enabling operational autonomy for up to 30 days with wind support and 15 days without, maintaining a speed of 10 knots (5.14 m/s / 18.52 km/h). The vessel also incorporates ~1,000 square meters of solar panels, Proton Exchange Membrane (PEM) and Solid Oxide Fuel Cells (SOFC), batteries, and renewable liquid hydrogen. Dual-fuel engines certified for biodiesel and biogas ensure compliance with Safety of Return to Port (SRtP) regulations.
An advanced carbon capture system is also integrated into the vessel’s design, capturing CO2 emissions for reuse or secure storage. Waste heat and cold recovery systems further enhance the vessel’s sustainability profile.
The AiP for Swap2Zero was granted in accordance with international maritime standards, including SOLAS, ILLC, MARPOL, and the IGF Code, as well as Bureau Veritas' own standards for the classification of steel ships, wind propulsion systems, and hydrogen-fueled vessels.