Huisman, the specialist in lifting, drilling and subsea solutions, successfully delivered the 600mt Wind Turbine Installation Crane onboard GeoSea’s DP2 jack-up vessel Neptune. The crane was handed over to the builder of the vessel IHC Offshore and Marine BV, part of IHC Merwede, who subcontracted the crane to Huisman in 2010.
The 600mt Pedestal Crane is custom-designed for the installation of offshore wind turbines and derives from Huisman’s many years of experience in the design, fabrication and service of heavy lifting equipment. The state-of-the-art crane combines unique technical features, such as a full electric variable frequency drive system, a low overall construction weight and a small minimum operating radius. Furthermore all the major equipment, such as the hoist winches, is installed inside the enclosed crane house. This offers a good protection for the harsh marine environment. These technical features result in an environmental friendly crane, lower operational costs and maximum operability.
The crane for the Neptune is the second crane of this type designed and manufactured by Huisman and it was constructed, commissioned and tested at the Huisman facilities in the Netherlands and the Czech Republic. The installation and load testing took place at the Serdijn yard in the Rotterdam harbor.
The 60-metre long and 38-metre wide DP2 (dynamic positioning) self-propelled jack-up vessel is equipped with a dedicated 600-tonne crane that is fully integrated into the hull. The Neptune will be perfect for the transport and installation of offshore wind turbines and any other heavy marine offshore structures. Once operational, the Neptune will be provided with a Green Passport, delivered by ABS (American Bureau of Shipping).
On delivery to GeoSea in early 2012, the Neptune will start its first assignment on the Thornton bank off the Belgian coast, where it will perform the installation of the 48 wind turbines for the second and third stages of the C-Power offshore wind farm. Then, the Neptune will move to German waters in the North Sea for the construction of both the Trianel West Borkum II wind farm (45 km north of the East Frisian Island Borkum) and the EnBW Baltic 2 wind farm (32 km north of the island of Rügen).
The following is a video of the launching ceremony of the Neptune which took place on 23 September 2011 at the IHC Merwede shipyard in Krimpen aan den IJssel, The Netherlands.