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Monday, December 16, 2019 

Schottel thrusters have been chosen to propel two new environmentally friendly vessels for Norwegian ferry operator Norled, one of which is claimed to be the first to use liquid hydrogen as fuel.

The two newbuilds have been designed by LMG Marin, and are currently under construction at Westcon Yards, Norway. Each will have a hybrid propulsion system - the first a 50/50 mix of batteries and hydrogen fuel cells, while the second ferry will be powered by batteries only. Each will be driven by two Schottel Rudder EcoPeller type SRE 340 L FP with an input power of 960kW. With FP propellers of 2.1m diameter, the ferries are specified to operate at a service speed of 12 knots.

Sigvald Breivik, technical director, Norled said, "Our goal is to create a new icon among eco-friendly ferries. Hydrogen, as a zero-emission fuel, will be the alternative energy for ferry propulsion systems in cases where longer sailing distances are required and charging batteries is not possible. The energy efficient Sschttel Rudder EcoPeller (SRE), which we now have selected for several of our new vessels, is an important piece in this puzzle. Through this selection, we ensure our place at the forefront of the development of zero-emission ferries."

The SRE covers the power range from 500 to 5,000kW and ensures high efficiency even at very low loads. The ecologically friendly system has been developed primarily for open seas and coastal operating conditions.The efficiently-designed thruster will contribute to the ferries’ low fuel consumption, resulting in low operating costs and reduced emissions. Beyond this, the SRE improves course-keeping stability and thus reduces steering angle corrections.

The LMG 80 ferries measure 82.4m overall length with moulded breadth of 17m. They will operate on the Hjelmeland – Skipavik – Nesvik route in Ryfylke, Rogaland County starting in the spring of 2021. The double-ended vessels will each have a capacity of 299 passengers and 80 cars.

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