ClassNK validates K Line and Oceanicwing's kite-based wind-assisted propulsion system

Japanese classification society ClassNK has verified the performance of a kite-based wind-assisted propulsion system developed by Kawasaki Kisen Kaisha (K Line) and its French subsidiary Oceanicwing.

IMAGE: K Line's kite-based wind assisted propulsion system. K Line

The system uses a kite that flies dynamically to capture wind energy, supporting vessel propulsion and helping to cut engine load, improve efficiency and reduce fuel consumption. Unlike rotor sails or rigid sails, which are largely fixed, the kite system is designed to deploy, operate and retract autonomously.

Following land-based trials, ClassNK confirmed that both the traction force generated by the kite and the overall system performance met its expectations.

Adoption of WAPS is gaining pace as shipowners seek greater fuel efficiency and lower emissions.

In February, Oceanbird—a joint venture between Alfa Laval and Wallenius Lines—secured its first commercial order for a wind-assisted propulsion system.

Earlier, in January, London-based Anemoi Marine installed four rotor sails on a bulk carrier owned by Singapore’s Berge Bulk. During the same month, Spanish developer bound4blue fitted four large suction sails on a vessel operated by Maersk Tankers.

Elsewhere, chemical tanker operator Chemship placed an additional order in January with Dutch firm Econowind for WAPS installations on two vessels, while South Korea’s HMM deployed an oil and chemical tanker equipped with a wind-assisted propulsion system for sea trials.

By Tuhin Roy

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