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Second SeaMade substation installed

By: Tom Russell 18/03/2020 DEME Offshore

General Substations Vessels Windfarms

The last of the two substations for the SeaMade offshore wind farm has been installed in the Belgian North Sea. This installation marks a major milestone in the construction of what is poised to be Belgium’s largest offshore wind farm.

The installation of the substations was executed by DEME’s subsidiary Scaldis Salvage & Marine Contractors using its heavy lift vessel Gulliver. Earlier DEME’s offshore installation vessel Innovation installed all of the foundations, including those for the two substations.

Each with a weight of 1,200 tonnes, the substations are the beating heart of the offshore wind farm. They transform the wind energy that is produced to 225 kV, which in turn allows the electricity to be brought to shore via Elia’s Modular Offshore Grid (MOG). The export cable transmitting the electricity to shore has been installed earlier with DEME’s cable installation vessel Living Stone.

Bart de Poorter, General Manager DEME Offshore comments: “Despite the challenging weather conditions over the past weeks the SeaMade project is firmly on track. The successful installation of the two offshore substations was only made possible thanks to the close cooperation between the SeaMade team and our partners Smulders, ENGIE Fabricom and Tractebel, as well as the highly skilled experts on board of our vessels.”

Mathias Verkest CEO SeaMade offshore wind farm comments: “I am thrilled to see this oversized mecano being put together, bringing us closer step by step to the start of green energy production for 485.000 households as from autumn this year.A big thank you to the SeaMade team and all parties involved for the close cooperation and joined efforts to make this happen.”

The installation of 58 turbines will begin in spring. DEME will deploy its offshore installation vessel Apollo. In April cable installation vessel Living Stone will start the installation of the inter array cables.

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

The two projects 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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Second SeaMade substation installed

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