You are using an outdated browser For a better experience using this site, please upgrade to a modern web browser. Subscribe Get Daily Email Subscribe --> Contact Us Sign in Home News & Features Compliance Costs Bunker Prices Bunker Intelligence World News Latest Features World Americas EMEA Asia/Pacific Home News & Features World Bound4blue's Largest Suction Sail Wins DNV Approval Bound4blue's Largest Suction Sail Wins DNV Approval by Ship & Bunker News Team Tuesday June 9, 2026 Tweet Follow @shipandbunker A wind propulsion system harnesses wind energy. Image Credit: Bound4blue Wind propulsion firm Bound4blue has received type approval design certification from classification society DNV for its largest installed eSAIL wind propulsion system. The approval covers the company's Model 3-24 eSAIL suction sail, confirming it meets DNV's standards for safety and design, it said in an email statement on Tuesday . Two of the sails were installed on Klaveness Combination Carriers ' newbuild vessel MV Baltazar earlier this year . The eSAIL system uses suction to generate aerodynamic lift, producing forward thrust that can reduce engine load and fuel consumption. Bound4blue said the larger sail is designed to provide greater wind-assisted propulsion, helping shipowners reduce fuel consumption and emissions. The company added that the technology can help vessels meet environmental regulations while lowering operating costs. According to the International Windship Association (IWSA) , more than 100 ships are currently equipped with wind propulsion , with tankers and bulk carriers leading the adoption. Ship & Bunker News Team To contact the editor responsible for this story email us at [email protected] Also in the News Mercuria Warns of Bunker Shortages at Major Hubs Within Months: Report Mercuria's global head of freight is reportedly concerned that bunker shortages could shut down 10% of the global fleet. Read in Full MOL Signs LNG Bunkering Deal wit