Finnish auxiliary wind propulsion systems provider Norsepower Oy Ltd on Wednesday (20 January) said it has successfully installed two 35m tall Rotor Sails for SEA-CARGO, a leading logistics provider in the North Sea market.
This installation heralds the world’s first tiltable Rotor Sail, showcasing that vessels that have to negotiate height restricted routes can benefit from this fuel and emissions-saving solution.
The sail is also the first third-party verified and commercially operational auxiliary wind propulsion technology for the global maritime industry.
The solution is fully automated and detects whenever the wind is strong enough to deliver fuel and emission savings, at which point the Rotor Sails start automatically.
According the analysis conducted by Norsepower and SEA-CARGO, the installation – on board the SC Connector, a 12,251 gross tonne (GT) sidedoor Ro-Ro – can achieve a fuel consumption, fuel cost and carbon emissions reduction of up to 25%. In good wind conditions, the sailing vessel will maintain regular service speed by sail alone.
As shipping transitions towards decarbonisation and meeting IMO’s targets of 2030 and 2050, the maritime transport industry is looking for proven solutions to ensure emissions reductions. Harnessing wind is a natural step to reducing emissions and fuel consumption.
Norsepower’s Rotor Sail Solution is a modernised version of the Flettner rotor, a spinning cylinder that uses the Magnus effect to harness wind power to thrust a ship.
SC Connector, which sails between Western Norway, Denmark, the Netherlands and, also, Sweden and Poland, transits under multiple bridges and powerlines, requiring adaptation of the Rotor Sails to tilt to almost horizontal when required.
“Completing the installation has been extremely rewarding, as it reflects how, in taking a collaborative approach with a customer, we can innovate to create solutions that allow Rotor Sails to benefit almost any vessel type or trading route,” said Tuomas Riski, CEO, Norsepower.
“This installation demonstrates the technology can go a long way to future proofing IMO GHG compliance, while ensuring significant emissions, and fuel reductions to a variety of vessel profiles today.”
“We are focussing on utilising available renewable energy and using it for direct propulsion to design more environmentally friendly vessels. The Rotor Sail technology has been proven in the market for a while, but the size is unique for our project,” added Ole Sævild, Managing Director, SEA-CARGO.
“The sails are far more efficient than conventional sails of same size and the tilting function is essential to our voyage routes. Given the estimated emissions savings, we will use our experience of this full scale project, and proceed to develop it further for other vessels in our fleet.”
Photo credit: Norsepower
Published: 21 January, 2021
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