The global fleet of large commercial wind-powered ships has surpassed 100 vessels, marking a significant step in the shipping industry’s shift toward lower-emission propulsion technologies.
According to the International Windship Association (IWSA), more than 100 cargo vessels representing over 5 million dwt are now equipped with wind propulsion systems, including rotor sails, suction sails, wing sails, traction kites and conventional sail technologies.
The fleet currently operates with more than 230 wind propulsion units and is estimated to reduce carbon dioxide emissions by over 100,000 tonnes annually.
Adoption has accelerated sharply in recent years. In May 2022, only 21 large commercial vessels with wind-assist systems were in operation, representing around 1 million dwt. Since then, the fleet has grown almost fivefold.
Tankers lead deployment with 37 vessels fitted with wind-assist technology, followed by bulk carriers and ro-ro or ro-pax vessels, each accounting for 24 ships. Another 19 general cargo vessels have also adopted the technology.
The growth comes as shipowners seek practical solutions to reduce fuel consumption and meet tightening environmental requirements while uncertainty remains over future marine fuel availability.
The IWSA said the sector’s progress has been supported by years of testing and operational validation, helping build confidence in both the commercial and technical performance of wind propulsion systems.
Industry forecasts suggest the wind-powered fleet could double again within the next year, potentially reaching around 200 large commercial vessels by mid-2027.
