|The sea trials of Norsepower's first prototype Rotor Sail were started in November 2014 on board Bore's 9,700 DWT Ro-Ro carrier MS Estraden. Based on the successful sea trials, the technology has potential for fuel savings of up to 20% for vessels with multiple, large rotors traveling on favourable wind routes.
The Norsepower Rotor Sail Solution is a modernized version of the Flettner rotor – a spinning cylinder that uses the Magnus effect to harness wind power to propel a ship. When the wind conditions are favourable, Norsepower 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. Rotor sails can be used with new vessels or they can be retrofitted to existing ships.