World’s largest windfarm installation vessel (WIV) came to Copenhagen

By Peter Pospiech at February 26, 2013 07:47
Filed Under: Company News, drive systems, General, MAN Diesel&Turbo, Shipyards

Swire Blue Ocean provides services to the offshore wind industry and its newest vessel, the state-of-the-art PACIFIC ORCA, was christened end of 2012 in Copenhagen. Built in Korea by Samsung over 1½ years, the 8 x MAN 9L27/38 GenSets for diesel-electric propulsion were built by Doosan. The subsequent trip from Korea to Denmark took 80 days.

Pacific Orca is the world’s most modern WIV with an overall length of 160.9 m, a breadth of 49.0 m, and a speed of 13.0 knots.  The ship is designed to transport up to 12 × 3.6 MW disassembled off-shore windmills and its main crane has a maximal capacity of 1,200 tons. Lars Blicher, General Manager & Director of Danish Swire Blue Ocean A/S, states: “The engines are hugely important as we have to be able to rely on them. They are diesel-electrics so, if any fail, we have others to take over. We opted to put identical engines in the ship to make life easier when it comes to spare parts and maintenance.” He continued: “There is a lot of redundancy in the engines and, in our experience, MAN engines are very reliable and easy to work with. We are delighted to have MAN engines on board our vessel.”

Blicher also said: “It is a 3rd generation ship for the wind turbine industry, but also works in the oil and gas sector where we have to decommission platforms in the North Sea. Our unique selling point is the large weather window we have. The crane can work in up to 20-metre-per-second winds and the ship can manoeuvre in 2.5-metre waves. This means that, when other vessels have to give up, we can sail out to the site and be ready. So we are much more efficient.” Safety is enhanced through a 6-leg design that allows the vessel to remain stable in the event of a leg penetrating the seabed during operations. With a large cargo area and high capacity deck loading, the vessel offers great flexibility in the carriage and installation of wind turbines and foundations of all types and sizes. PACIFIC ORCA has an operation crew of 25-30, but the ship can accommodate up to 111 persons on board, each with an individual cabin and en suite facilities. The unique vessel is propelled using four 3.4 MW azimuth stern thrusters. It has no rudder but is instead equipped with  two  bow  thrusters  and  two bow-tunnel thrusters, each providing 2.2 MW in power, that give the ship a unique manoeuvrability.

 

Images: courtesy of MAN

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