Ponant’s Swap2Zero awarded AiP

Bureau Veritas has granted approval in principle (AiP) to Ponant for its new twin-screw sailing passenger vessel concept, Swap2Zero.

The vessel concept, measuring 186 m in length, is designed for transoceanic voyages and is equipped with a combination of renewable energy sources including wind, solar and low-carbon fuels. Its design aligns with its goal of being close to zero-emissions ready by focusing on three core principles: energy efficiency, energy sobriety and the optimised use of renewable resources. Wind propulsion is the primary method, supplemented by solar power, hydrogen fuel cells and renewable fuels such as bio and e-methane.

Key features of the Swap2Zero project include the ability to achieve up to 50% wind-assisted propulsion and provide up to one month of operational autonomy. It can operate for 15 days without wind at a speed of 10 knots, or up to 30 days with 50% wind assistance. The vessel concept also incorporates approximately 1,000 m² of solar panels, proton exchange membrane and solid oxide fuel cells, batteries and renewable liquid hydrogen. Additionally, dual-fuel engines certified for biodiesel and biogas support Safe Return to Port compliance.

A notable aspect of the vessel concept is its advanced carbon capture system, designed to capture and store CO2 emissions, which may be reused or securely stored. The vessel concept also features systems for waste heat and cold recovery, contributing to its overall sustainability.

The approval in principle for the Swap2Zero project has been granted in accordance with key international conventions including SOLAS, ILLC, Marpol and the IGF Code. It also aligns with Bureau Veritas standards such as the Rules for the Classification of Steel Ships (NR 467), Wind Propulsion Systems (NR 206), and Hydrogen-Fueled Ships (NR 678).

Ponant newbuilding and R&D director Mathieu Petiteau said, “This vessel concept represents our vision for the next generation of cruise vessels, showcasing how various technologies, energy sources and processes can be harmonised to provide optimal autonomy and flexibility, all while being compliant with existing regulations. It is a realistic and profitable approach that achieves the highest level of decarbonisation. This project also offers a valuable opportunity to deepen our expertise in innovative technologies, while engaging regulatory and certification bodies, equipment manufacturers, design offices and shipyards in a collaborative real-world case study, exploring multiple decarbonisation strategies we believe in.”