Berge Neblina sets sail following the installation of Anemoi’s energy saving Rotor Sails

Berge Neblina’s Voyage Towards Decarbonization with Rotor Sails

Berge Bulk’s Berge Neblina, a 388,000 dwt Valemax Ore Carrier, is on the verge of completing its voyage to Brazil after the successful installation of four 5x35m Rotor Sails from Anemoi Marine Technologies Ltd (“Anemoi”).

The Rotor Sails were installed during the vessel’s scheduled dry docking at Yiu Lian Dockyards (Shekou) Ltd in China. These sails are part of Anemoi’s bespoke folding deployment system, allowing them to be folded vertically to mitigate impacts on air draught and cargo handling operations when in port.

 Berge Bulk and Anemoi Marine Technologies

Paolo Tonon, Berge Bulk’s Technical Director, emphasized the significance of this installation, stating, “Leveraging the latest in wind technology to reduce our fleet’s emissions is an important part of Berge Bulk’s ‘Maritime Marshall Plan’ for decarbonization. We are optimistic that these Rotor Sails can deliver up to 8% carbon reduction.”

Kim Diederichsen, CEO of Anemoi, highlighted the collaborative effort, “Anemoi’s collaboration with Berge Bulk demonstrates how we are both working in partnership to ultimately secure shipping’s zero-emission future. Anemoi remains committed to maintaining its position as a leading provider of critical vessel decarbonization technology.”

Berge Bulk and Anemoi Marine Technologies

Rotor Sails, also known as ‘Flettner Rotors’, consist of vertical cylinders that rotate to harness wind power, propelling ships by utilizing the aerodynamic phenomenon known as the Magnus Effect. This technology provides additional thrust, increasing efficiency by reducing the load on the main engine while maintaining speed, thus significantly lowering fuel consumption and greenhouse gas emissions.

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This technology is gaining traction among ship owners, particularly in the bulk sector, who aim to achieve net-zero shipping emissions. Rotor Sails have become a preferred technology to enhance vessel energy performance, helping ships comply with international emission reduction benchmarks like the Carbon Intensity Indicator (CII) and EEDI/EEXI.

Berge Bulk and Anemoi Marine Technologies

The successful installation on Berge Neblina marks a significant step in the maritime industry’s ongoing efforts to adopt greener technologies and reduce carbon footprints, setting a precedent for other vessels to follow in the pursuit of a sustainable future.


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