Anemoi and Maersk to deliver world first as rotor sails set for container shipping

Maersk has selected UK-based wind-propulsion technology supplier Anemoi Marine Technologies to supply its Rotor Sail system for installation on a container vessel in its 8,700 TEU Maersk Lima class (render pictured), supporting the company’s ongoing efforts to improve vessel efficiency and reduce emissions. This is believed to be the first time that Rotor Sails will be installed in a large container vessel.

Anemoi has already installed its cutting-edge Rotor Sail technology across numerous vessel segments, including bulk carriers, transporting raw materials and commodities.

Under this landmark agreement, Anemoi will design, manufacture and deliver a 5m diameter, 35m high fixed Rotor Sail for installation on the vessel. The system will be integrated alongside existing onboard systems, with Anemoi providing support throughout engineering and installation. The Rotor Sail is due to be fitted in mid-2027 and will be piloted during the vessel's regular operation, which is expected to be North and South Atlantic voyages.

Clare Urmston, CEO of Anemoi, said: “We’re delighted to be working with Maersk on this pioneering project. It’s a strong example of how collaboration can support the adoption of wind-assisted propulsion, and we look forward to carrying out the installation and working together as the project progresses.”

Ole Graa Jakobsen, Head of Fleet Technology, Maersk, commented: “Wind-assisted propulsion is one of several promising maritime solutions with the potential to improve vessel efficiency and reduce emissions. It has already been tested in other parts of the shipping sector, and we see this pilot with Anemoi as a valuable opportunity to build practical experience and assess its relevance for our fleet and for container shipping more broadly.”