Anemoi Marine Technologies completes NSU TUBARAO Rotor Sails installation

Anemoi Marine Technologies has successfully completed the installation of five 35-meter-tall Rotor Sails on the NSU TUBARAO, one of the largest ore carriers globally. This retrofit, carried out during a scheduled drydocking at Zhoushan Xinya Shipyard in China, is expected to reduce the vessel’s fuel consumption by 6 to 12% annually. The project underscores the growing trend of integrating wind-assisted propulsion systems in maritime operations, particularly for vessels chartered by mining giant Vale International.

Innovative Upgrades for Enhanced Efficiency

The NSU TUBARAO, owned by NS United Kaiun Kaisha, Ltd., is a very large ore carrier (VLOC) measuring 361 meters in length and 65 meters in beam, with a deadweight tonnage of 399,717. The recent installation of the Rotor Sails marks Anemoi’s fourth project with Vale, contributing to a total of over 1.6 million deadweight tonnage equipped with this innovative technology. The Rotor Sails utilize a folding mechanism, allowing for flexibility during cargo handling while maximizing the benefits of wind energy.

In addition to the Rotor Sails, the vessel was equipped with a new shaft generator during its special survey. This upgrade enhances the overall energy performance of the NSU TUBARAO and optimizes fuel consumption when operating the Rotor Sails. Anemoi’s advanced control system integration ensures seamless coordination between wind propulsion and the onboard power supply, further improving the vessel’s efficiency.

NSU’s commitment to sustainability is evident in its approach to combining Rotor Sails with advanced digital solutions. The Manta FuelOpt system allows for effective power management of the main engine, optimizing fuel savings achieved through the Rotor Sails. Additionally, NAPA’s Voyage Optimization toolbox aids in planning routes that maximize favorable wind conditions without delaying departure or arrival times. This comprehensive strategy positions the NSU TUBARAO as a leader in sustainable shipping practices.

Industry Impact and Future Prospects

Clare Urmston, CEO of Anemoi, highlighted the significance of this project, stating, “The scale of this project shows the market’s growing confidence in wind power as a crucial enabler of lower emission shipping.” The collaboration with NSU, Vale, and Class NK exemplifies the potential of optimizing propulsion integration and navigation for wind assistance, promising greater benefits for the shipping industry.

Toru Fujita, Director and Managing Executive Officer of NSU, expressed pride in the successful installation, emphasizing the company’s goal to support stakeholders with the most efficient ships. The Rotor Sails on the NSU TUBARAO, combined with advanced systems for maximizing fuel-saving potential, reflect NSU’s dedication to innovation in maritime operations.

The NSU TUBARAO’s retrofit not only enhances its operational efficiency but also sets a precedent for future wind propulsion projects in the shipping industry, showcasing the potential for sustainable practices in large-scale maritime transport.