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DEME Offshore completes SeaMade array cable works

By: Tom Russell 27/05/2020 DEME Group

Cables General Vessels Windfarms

DEME Offshore has completed the inter-array cable laying works at the SeaMade offshore wind farm with its cable installation vessel Living Stone.
The company was responsible for the Engineering, Procurement, Construction and Installation (EPCI) of the 64 inter-array cables. With a total length of 71.2 km, the cables were loaded out on Living Stoneand cable laying works were completed in record time. The vessel laid up to three cables per day.

The cable installation vessel features a double firing line, a quadrant upending frame, an inboard cable buffering system and the newly installed Cable Protection System (CPS) storage system, which was deployed for the first time at the SeaMade project.

Bart De Poorter, General Manager DEME Offshore, emphasised: “This peak performance level could only be achieved thanks to our crew on board of ‘Living Stone’ and the dedicated project team and partners involved. Everyone on board and on shore made exceptional efforts to ensure the project remained firmly on track, maintaining safe operations at all times during the COVID-19 pandemic. This achievement highlights once more the state-of-the art technical capabilities of ‘Living Stone’. The large cable storage capacity, with two turntables below deck, combined with a very high workability, enables DEME to perform the installation works of entire wind farms within a single campaign and with minimum delay due to port calls or harsh weather conditions.”

Mathias Verkest, CEO SeaMade offshore wind farm, commented: “I am proud to see another campaign successfully concluded at both of the SeaMade concessions, Mermaid and Seastar, bringing us another step closer to the realisation of the SeaMade offshore wind farm. Both the start and the end of the installation activities took place during the COVID-19 pandemic. This can only be accomplished by a highly focused, quality driven team, making every effort to carry out the works safely and going for the extra mile during these unprecedented times. The 71.2 km of infield cable has been installed in 12 strings which are linked through six interconnecting loop cables located at the end of the strings to create redundancy during future operations. With the construction of SeaMade, Otary’s second and largest offshore wind farm in the Belgian North Sea, we are building a better world for tomorrow, delivering 487 MW of green energy to Belgian households.”

The SeaMade project consists of two wind farm, Mermaid and Seastar, and is located in Belgian waters approximately 40-50 km off the coast of Ostend, in water depths between 22 and 38 metres. The project is being developed by SeaMade NV, a joint venture of the Otary group (70%), Electrabel (Engie) (17.5%), and Eneco Wind Belgium (12.5%).

The two wind farms will have a combined capacity of 487 MW and will consist of 58 Siemens Gamesa SG 8.0-167 DD turbines, each with an individual installed capacity of 8.4 MW, mounted on monopile foundations. Each wind turbine has a hub height of 109 metres and a rotor diameter of 167 metres, and they are expected to power around 500,000 households annually. Once constructed and operational, the project is expected to offset 700,000 tons of CO2 emissions a year.

For more information on offshore wind farms worldwide, click here. You can also view projects worldwide on 4C Offshore's interactive map.

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DEME Offshore completes SeaMade array cable works

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