Alfa Laval and Wallenius agree on a joint venture to develop modern wind propulsion

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Press Release: With an aim to radically reduce the marine industry’s carbon footprint and overall  emissions, Alfa Laval and Wallenius have announced their intent to form a new 50/50  joint venture. AlfaWall Oceanbird will focus on the development and realization of  technology for fully wind-powered vessel propulsion.  

 

Sailing away from fossil fuels 

 

Alfa Laval and Wallenius are familiar partners in developing ground-breaking technology.  The companies have collaborated previously on PureBallast, which is one of today’s leading  solutions for ballast water treatment. Through AlfaWall Oceanbird, they will pursue an  innovative means of wind propulsion based on telescopic wing sails. This solution could  reduce emissions by 90% on the largest ocean-going vessels.  

 

“Wind has a key role to play in decarbonizing the marine industry,” says Peter Nielsen,  Business Unit President, Alfa Laval Marine Division. “Together with Wallenius, we will harness  this abundant natural force to meet both climate needs and those of maritime business.” 

 

“Oceanbird wing sail technology will be not only an elegant solution, but also a powerful driver  of positive change,” says Per Tunell, COO Wallenius Marine and future Managing Director of  AlfaWall Oceanbird. “Our vision at Wallenius is to lead the way towards truly sustainable  shipping, and we are proud to partner with Alfa Laval in reaching it.” 

 

Putting wings on the water 

 

Though designed for wind propulsion, the Oceanbird technology has more in common with  modern planes than traditional sailing vessels. It comprises an array of rigid wing sails, built  from steel and composite materials, that generate forward movement instead of vertical lift.  These wing sails will be able to turn 360° to make optimal use of the wind. 

 

The technology will be valid for any vessel type, but it will be implemented first on a  transatlantic car carrier. Able to carry 7,000 cars, the vessel will be 200 metres long and will  cross the Atlantic in 12 days when sailing at an average speed of 10 knots. AlfaWall  Oceanbird will focus primarily on the vessel’s technical sailing aspects, such as the vessel  control system that will steer the wing sail operation. 

 

“The wing sails are up to 80 metres tall and have a telescopic construction,” says Nielsen.  “Besides adjusting to catch the wind, they can be lowered to pass under bridges, to handle harsh weather conditions or for maintenance. Because they will interact with the hull in a sophisticated way, they will also require intelligent control.”  

  

Returning to wind as a way forward 

 

The AlfaWall Oceanbird joint venture comes at a critical point for the marine industry, which is  responsible for around 2–3% of global greenhouse gas emissions. With the intent of reducing greenhouse gases related to shipping by at least 50% by 2050 compared to 2008 levels, IMO has set a goal to cut CO2 emissions from international shipping by 40% by 2030. Alfa Laval  and Wallenius are committing to decarbonization targets beyond these levels, as are many  other companies and a range of countries. 

 

“We cannot wait until the end of the century to phase out fossil fuels,” says Tunell. “We must  create realistic alternatives, including the infrastructure for delivering and supporting them. Wallenius is committed to wind propulsion, and we know from the experience with PureBallast that Alfa Laval can help us make it a global reality.” 

 

“Alfa Laval has supported the marine industry’s evolution for more than 100 years, but today there is new urgency,” says Nielsen. “Wallenius shares our environmental momentum and the  determination to find immediate, workable solutions. Having once helped us explore our  planet, wind can now help us rescue it.” 

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