Cargo ship retrofitted with ‘WindWings’ for greener voyages.

Cargo ship retrofitted with 'WindWings' for greener voyages.

Sailing Towards a Greener Future: The WindWings Revolution in Global Shipping


A cargo ship embarks on a historic voyage, setting sail with two massive sails that could potentially revolutionize the global shipping industry. The ship, named Pyxis Ocean, will test the innovative “WindWings” as it sails from China to Brazil. American firm Cargill, which is chartering the vessel, asserts that this is the first time sails of this magnitude have been fitted on a cargo ship and put to the test in real-world conditions. This pioneering technology is expected to pave the way for a greener and more sustainable future for the shipping sector.

The Birth of the WindWings

WindWings Sails

The rigid, foldable sails were designed by BAR Technologies, a British company that emerged as a spin-off from the 2017 UK team of the America’s Cup, an esteemed sailing competition often likened to the “Formula One of the Seas.” Standing 37.5 meters tall, these sails are predominantly made from fibreglass, the same material used in wind turbine blades. In line with wind turbines, the WindWings aim to significantly reduce carbon emissions. By assisting a cargo ship’s engines, these sails have the potential to reduce diesel fuel consumption by up to 30%. The impact is staggering, with each vessel equipped with these sails saving six tonnes of fuel and a remarkable 20 tonnes of CO2 emissions per day.

A Shift Toward Greener Seas

With shipping being responsible for 3% of global greenhouse gas emissions, even surpassing the entire aviation industry, finding effective methods to decarbonize this sector is of utmost importance. However, the challenge lies in the fact that most ships currently run on diesel fuel, which makes it difficult to adopt alternative fuels like hydrogen or batteries. The WindWings solution, co-funded by the EU’s Horizon program, presents an attractive option for shipping companies as they can retrofit their existing fleets and immediately reduce their emissions.

Dr. Simon Bullock, a shipping researcher at the University of Manchester, stresses the need for zero-carbon fuels on all ships in the long run. However, in the interim, it is essential to maximize efficiency on every journey. The WindWings technology aligns perfectly with this goal, providing a tangible pathway towards reducing emissions while the shipping industry explores further environmentally friendly solutions.

Promising Projects on the Horizon


Ventures similar to WindWings are already underway, showcasing the growing momentum and interest in wind-based vessel projects. Earlier this year, Swedish company Oceanbird commenced the construction of 40-meter high sails weighing 200 metric tons, to be retrofitted onto the 14-year-old car carrier, Wallenius Tirranna. This development serves as a testament to the scalability and potential of wind-powered shipping.

Norwegian cruise company Hurtigruten has also unveiled a concept design for its inaugural zero-emission ship, scheduled to launch in 2030. This vessel will utilize battery power supplemented by three 40-meter solar panel-covered sails. These exciting projects not only signify a shift towards cleaner transportation but also emphasize the market’s appetite for sustainable alternatives in the maritime industry.

Charting the Course Ahead

During Pyxis Ocean’s estimated six-week voyage, the performance and efficacy of WindWings will be meticulously monitored. The data collected will contribute to further advancements in the technology and facilitate its integration across the wider Cargill fleet and the shipping industry as a whole. This maiden voyage acts as a proving ground, illuminating the potential of wind-driven propulsion and fuel efficiency measures in enhancing sustainability within the maritime sector.

In conclusion, the deployment of WindWings on the Pyxis Ocean marks a significant milestone in the pursuit of a greener future for the global shipping industry. With the ability to retrofit existing fleets and achieve substantial fuel consumption reduction, this technology offers a viable, immediate solution to address the challenging task of decarbonizing shipping. As wind-based vessel projects gain traction worldwide, the maritime industry is propelling itself towards a sustainable and environmentally conscious future.