Commercial shipping is reviving wind propulsion systems to reduce fuel consumption, with over 100 large merchant ships now equipped with modern sails, rotor systems, and rigid wings. Major operators like Maersk, Vale, and Idemitsu are deploying these technologies on containerships, ore carriers, and tankers, while some vessels like France's Neoliner Origin use wind as primary propulsion. The shift represents a practical return to wind power alongside conventional engines as the technology moves from niche experiments to mainstream adoption.