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Butendiek OWF

Boskalis was contracted by OWP Butendiek GmbH & Co. KG to supply, install and protect (by post-lay burial) the high-voltage inter-array cable at the offshore wind farm of Butendiek. This German wind farm is situated in the German Bight (Nordsea), approx. 35 km west of the island of Sylt. The 33 km2 wind farm consists of 80 wind turbines with a capacity of 3.6 MW each and a total capacity of 288 MW. The inauguration of the wind farm took place on September 8, 2015. It provides renew-able energy to approx. 370,000 households.

The infield cables were loaded in one load-out at Drammen in Norway and then cut down to the correct size on site. The WTGs were connected in a grid of infield cables. 86 individual cables were installed between the turbines, including 6 redundancy cables, amounting to a total length of approximately 90 km for the infield cabling. Cable production commenced in December 2013. The cables were installed in the summer of 2014 using the Stemat Spirit. This vessel was converted to enable the handling of the long cable protection system lengths. Trenching of the cables was performed using a separate trenching spread. Termination, testing and commissioning of the 12 cable strings were carried out using in-house resources.

Related projects

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Construction of greenfield port and breakwater for Dangote quays Lekki

The Dangote Group, owned by Aliko Dangote, is building Africa’s largest oil refinery and fertilizer plant in Lekki, 60 kilometers east of Lagos, Nigeria. To facilitate the import of out-of-gauge components and other materials required for construction activities, a port was constructed

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P67 FPSO Transportation

On behalf of Company Petrobras and Client COOEC, Boskalis executed the dry transportation of the P-67 FPSO in 2018 from the COOEC Qingdao yard in China to Rio de Janeiro in Brazil. The P-67 FPSO will produce 150,000 bpd and compress six million cubic meters of natural gas daily in the Lula North section of the Lula-Cernambi field in the Santos basin.

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Redevelopment Waterfront, Harderwijk

Boskalis Nederland is involved in one of the largest redevelopment projects in the Netherlands. The Harderwijk Waterfront project involves the complete transformation of the lakeside area of this IJsselmeer town. The project covers a strip approximately six kilometers long, combining homes, work and recreation in a natural way. The Harderwijk Waterfront will generate a quality boost in many areas: quality of life, employment, traffic, tourism and the environment.

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Artificial island
off the coast of
Jakarta, Indonesia

Boskalis has been awarded a contract by PT Muara Wisesa Samudra to design and construct an artificial island measuring 160 hectares off the coast of Jakarta, Indonesia. The work is part of the dredging and land development works for the new Pluit City. It will be executed in a joint venture with Van Oord.

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Road enlargement motorway A1-A6, Diemen-Almere

The A1/A6 project is one of the five sub-projects for Rijkswaterstaat that are included in the upgrading of the road network linking Schiphol Airport, Amsterdam, and Almere (SAA). The total length of the SAA link is 40 kilometers. Boskalis, together with partners, is responsible for the section from the Diemen intersection to Almere, a distance of approximately 23 kilometers.

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Port maintenance,
Açu Port

Açu Port in São João da Barra, Rio de Janeiro (Brazil) is one of the largest port-industry complex in Latin America. The port consists of two terminals: T1, an offshore terminal for handling iron ore and oil, and T2, an onshore terminal built around the inner navigation channel which accommodates offshore supply companies and will handle bauxite, general cargo and vehicles.