NSU to install Anemoi’s rotor sails on Vale’s VLOC

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NSU and Vale will install five Anemoi rotor sails on a 400,000dwt VLOC, aiming to reduce fuel consumption and CO2 emissions by 6-12%.

NSU TUBARAO with CGI Anemoi Rotor Sails © Anemoi Marine Technologies

NS United Kaiun Kaisha, Ltd. (NSU) and Vale International SA (Vale) have reached an agreement to install rotor sails manufactured by Anemoi Marine Technologies Ltd. (Anemoi) on a 400,000dwt VLOC.

The installation of five rotor sails, with a height of 35m and a 5m diameter on the NSU Tubarao vessel is scheduled around September 2025.

A rotor sail is a device to obtain propulsion by using the pressure difference generated around a cylinder by rotating a cylindrical sail installed on the deck. According to Anemoi, it is expected to reduce fuel consumption and CO2 emissions from the ship by approximately 6~12%

NSU has been actively working to make their vessels more efficient and reduce their greenhouse gas (GHG) emissions through the introduction of energy-saving devices such as rotor sails and by transitioning to ships powered by next-generation fuels.

The NSU Tubarao has been engaged in a long-term transportation contract between NSU and Vale since its delivery in September 2020. It has a LOA of 361m, a beam of 65m, a draft of 23m, and a gross tonnage of 197,453 GT.

Additionally, MOL and Vale have recently retrofitted a Capesize bulk carrier with Norsepower Rotor Sails, marking the first of its kind, aiming to reduce fuel and GHG emissions by 6-10%.