Maersk Plans to Install Norsepower Rotor Sail on a Container Ship

Maersk plans to install a Norsepower rotor sail on a container ship, according to a report cited by the Financial Times. Unlike a traditional fabric sail, the system is a large cylindrical structure that creates thrust through aerodynamic forces.

Norsepower says the cylinder is actively rotated by an electric motor rather than spun by the wind. In favorable conditions, the rotor sail can produce thrust comparable to, or greater than, the ship’s main engine, potentially reducing fuel consumption. Exact savings, installation costs and payback period were not provided.