There are several projects under development to reintroduce wind power to large container ships, and even for cruise ships. The one closest to commercial use is the Neoline which uses giant sails and the manufacturer claims it will reduce carbon dioxide emissions by 90% compared to other roll-on, roll-off ferries.
That last point is important because many of the world’s cars are delivered around the world by huge ferry ships. Neoline has agreed a deal with Renault to supply two of its new ships that will have a top speed of 11 knots. That’s slower than most diesel-fuelled equivalents but there is a general trend within shipping for lower average speeds to reduce emissions.