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Passenger Ship Technology

Passenger Ship Technology

New Wadden Sea catamaran is emission-free with COBRA battery system

Thu 22 Feb 2018 by Rebecca Moore

New Wadden Sea catamaran is emission-free with COBRA battery system
Watten Fährlinien equips new catamaran with the recently-developed COBRA battery system from Becker Marine Systems

Watten Fährlinien has started operating its new catamaran Liinsand on the Wadden Sea – and has equipped it with the environmentally friendly COBRA battery system from Becker Marine Systems.

“The goal of clean ship operation is achieved by using state-of-the-art, emission-cleaned diesel engines, a newly developed hybrid transmission and high-performance batteries for low-emission use of the Wattentaxi,” said shareholder of Watten Fährlinien and managing director of Becker Marine Systems Dirk Lehmann.

The COBRA (compact battery rack) maritime battery system is based on efficient lithium ion cells and is specially designed for maritime requirements, at its new production facilities in Winsen an der Luhe, located near the Hamburg headquarters of Becker Marine Systems.

“COBRA impresses by its lightness and compactness,” said Mr Lehmann, adding that Becker Marine Systems plans to cover the complete range from double-digit KWs up to a MW.

The new Wattentaxi uses two redundant, hybrid diesel propulsion systems with two propellers, two Becker rudders and two battery systems of 50 KW hours each.

“The prototype for the use of our new COBRA product shows that ships at port can be operated emission-free,” said Mr Lehmann, adding that the volume of emissions generated during the trip are indicated on board.

At 18.70 m long and 7.20 m wide, the new catamaran carries up to 50 passengers through the Wadden Sea at a maximum speed of 16 knots. With a draught of only 1.35 m, the Wattentaxi is virtually independent of the tide.

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