The Finnish marine engineering company Norsepower Oy Ltd, said its 18m high Rotor Sail was installed on the ship during an ordinary seven-hour stay in harbour. The required foundations were added to the ship during a normal dry-dock stay last year.
Tuomas Riski, a partner in Norsepower Oy Ltd, said: “In favourable wind conditions our solution is able to produce up to 20 per cent savings in fuel costs with a payback period of less than four years.”
The Norsepower Rotor Sail Solution is a modernised version of the Flettner rotor.
Norsepower Oy Ltd said: “When the wind conditions are favourable, the Rotor Sails allow the main engines to be throttled back, saving fuel and reducing emissions while providing the power needed to maintain speed and voyage time.”