Windcat Workboat sets a new standard for efficiency / with batteries by MG

As the wind farm industry matures and is becoming less dependent on governmental support we feel that we have to play our part in reducing the operating costs for the charterer. At Windcat we believe that this should be achieved by reducing the fuel consumption. You don’t have to be a great mathematician to calculate how much money can be saved over the 25 years operational life of a wind farm.

Neil ClarksonManaging DirectorWindcat Workboats

Project / story

Their challenge

Windcat Workboats is Europe’s leading provider of specialist crew transfer vessels to offshore wind power industry. These high speed crafts are operated on a daily basis to ferry technicians and other personnel to and from installations in North West Europe, from the UK to Denmark and Germany.

The small yet fast catamarans are optimised to guarantee excellent quality of service, enabling the crew to perform their work offshore without delay, in a reliable and comfortable way. When it comes to operational safety the company is committed to the highest standards for international projects.

Windcat 41 is the latest addition to its fleet. This state of the art vessel, carrying 26 technicians, was built according to the latest technologies, rules and regulations. In order to comply with the industry’s energy reduction goals, while simultaneously meeting ever-increasing demands for higher comfort and performance, the 23 meter vessel was radically optimised in terms of hull design and – in stead of conventional batteries – outfitted with MG’s lithium-ion equivalents, due to their superior energy density.

The result surpassed all expectations. High performance, at a top speed of 31 knots using only two 720kW engines, with low fuel consumption and low emissions, stating a reduction of up to 40% compared to conventional designs. Which also yields a saving in costs. Thus the Wincat 41 sets a new industry standard for efficiency.

A total of four energy systems were installed, for emergency, service (twofold) and radio. Work on installing a similar setup on the next vessel is already underway.

Supply, installation & certification

This system is supplied and installed by our partner Alewijnse Marine and certified by DNV-GL.

Our solution

Components used

Emergency system

Service systems (twofold)

Radio system

Project / specs

System voltage

24 V

Total capacity

50 kWh

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