Wind propulsion technology take-up is being boosted by two major bulk carrier owners coming back for more kit or testing out different kinds of equipment.

Japan’s K Line said today it has confirmed orders for three additional Seawing systems, bringing its total to five vessels that will use the Airseas’ wind propulsion technology to cut emissions.

It follows Berge Bulk revealing last week that it will fit two of its vessels with Anemoi Marine Technologies’ rotor sails.