Wärtsilä Collaborating On Rotor Sail Solutions

By Jack Burke29 October 2020

Wärtsilä has signed an agreement with UK-based Anemoi Marine Technologies for the future sales and servicing of Rotor Sail solutions to the shipping industry.

Rotor Sails, also referred to as Flettner Rotors, are comprised of vertical cylinders which, when driven to rotate, harness the renewable power of the wind to propel ships. These mechanical sails capitalize on the aerodynamic phenomenon known as the Magnus Effect to provide additional thrust to vessels and deliver significant fuel and emission savings, the company said.

“Our patented designs overcome operational constraints such as air draft and cargo handling, making the technology suitable for the majority of shipping sectors. As the industry focuses on emission reduction targets and energy saving, we are collaborating with Wärtsilä to strengthen our offering and facilitate the global uptake of our Rotor Sails by offering clients a full end-to-end solution including sales, supply and lifecycle support,” said Kim Diederichsen, CEO of Anemoi Marine Technologies.

Wärtsilä will fully integrate Anemoi Marine Technologies’ Rotor Sails within its Propulsion Business. By offering wind propulsion solutions as an integral part of Wärtsilä’s propulsion offering, compliance with the IMO’s Energy Efficiency Design Index (EEDI) will be further facilitated. Furthermore, it will add to Wärtsilä’s efforts to increase fuel efficiency and reduce emissions. The collaboration will enable the adoption of wind-assisted solutions for most marine vessel types, with the immediate focus likely to be on dry and wet bulk vessels, the company said. Wärtsilä will promote the solution for both newbuild projects and for retrofitting to existing ships.

“Wärtsilä is committed to fully supporting its customers by reducing their operating costs and reducing the environmental impact of their operations. This agreement further enhances our ability to meet this commitment, and we look forward to working closely with Anemoi Marine Technologies to realize the potential of this technology,” said Bernd Bertram, vice president, Propulsion, Wärtsiä Marine Power.

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