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Ships long ago stopped sailing with ten guns per side. They don’t do it under full sail either, although there are a couple of companies determined to change that. The thing about the sails, not the cannons, since we have examples of great ships sailing with sails of the 21st century (and cannons are now electromagnetic). Are a bet to row against emissions of the maritime industry, and the truth is that the technology sounds good for the biggest ships that star almost all world trade. The banner is the Pyxis Ocean, an 81,000-ton ship that has been circling the oceans of half the world, showing the viability of returning wind-powered ships to the sea. And the industry is taking note: a few weeks ago the first oil tanker with sails began sailing with promising figures. Ships with state-of-the-art sails to decarbonize the oceans The maritime industry has a major challenge ahead: reducing its emissions to achieve decarbonization goals. We look at hydrogen, to methanol already electrification as ways to achieve those objectives, but the Pyxis Ocean is proving that candles can play a role in all of this too. Owned by the Mitsubishi Corporation, it is a ‘bulk carrier’. In Spanish, a bulk ship focused on the transportation of bulk cargoes such as cereals or minerals. Along with the container ship already the Ro-Roare essential ships in the global trade chainand the fact that it has sails does not prevent it from being a ship of considerable dimensions. 229 meters in length and 32 meters in width, typical for this type of boat. What is not so common are its two huge sails in the front and middle part. Each one is 37.5 meters high and 20 meters wide, and they work as you expect: taking advantage of the force of the wind to propel the boat. However, they do not ‘inflate’ like traditional sailboats. Named WindWingsare a rigid structure of steel and fiberglass that have more to do with the wings of an airplane than with conventional sails. They take advantage of wind energy, adapting in real time and automatically to maximize efficiency in different wind conditions. It works autonomously and does not require additional energy or personnel to handle it. When the Pyxis departed, not everyone was convinced the system would work, qualifying it as “a risky bet.” Two years later, we have some conclusions further. Under favorable conditions, the ship’s two WindWings are estimated to have reduced main engine power consumption by 32% per nautical mile. During the six-month testing process, the ship achieved savings of about three tons of fuel per dayand after those six months, the Pyxis Ocean continues sailing. Mitsubishi is not responsible for these sails, a credit that belongs to BAR Technologiesand the success of the pilot test has led to them expanding the sail catalog with more 20 and 24 meter models aimed at both smaller ships and ships for the chemical industry. The estimate is that each sail saves 0.7 tons of fuel per day and can be easily installed on both new and veteran boats, whenever adaptation work is done. Beyond the curiosity and interest of BAR Technologies in promoting this, it seems that the industry is considering it as an option to both electrification and traditional fossil fuel systems. In June of this year, the Brands Hatcha Union Maritime tanker that has three WindWings and departed from Rotterdam last September. It is estimated that more than a third of its propulsion was thanks to the wind, avoiding 13 tons of CO₂ per WindWing per day. The company has ordered sails for a further 34 new vessels and BAR Technologies has received another order for new LR2 tankers due to be launched in 2027. When the technology was introduced, John Cooper, director of BAR Technologies, commented that “by 2025, half of new ships will be powered by wind.” It is evident that their estimates have not been metbut the good results are encouraging the International Windship Association to calculate that there will be more than 100 large ships with the system by the end of this year and, by 2050, up to 40,000 systems installed. In the end, as has happened more than once, we look again to a technology from the past to achieve objectives in the present. We will see if sails are that agent that once again transforms maritime navigation on a global level, since neither BAR Technologies is alone in this nor are WindWings the only ones. next generation sails that are in development. Images | WindWaves In Xataka | It’s not a ship, it’s a floating “Empire State”: the ONE crush surpassing the record of containers on board