Offshore Wind

Seamade Offshore Wind Farm | OHVS
North Sea, Belgium
Seamade Offshore Wind Farm | OHVS

After a successful collaboration on previous offshore wind farm projects, ENGIE Fabricom, Tractebel, Smulders and DEME Offshore joined forces for the full EPCI scope (engineering, procurement, construction, transport, installation and commissioning) of SeaMade’s high voltage substations.


With a 487 MW capacity SeaMade is the largest offshore wind farm in Belgium. SeaMade originates from the merger of two offshore wind projects, previously known as Mermaid (235 MW) and Seastar (252 MW).


Both substations, each weighing 1,200 tons, were successfully installed offshore in March 2020 on top of the transition pieces that were built at our yard in Hoboken.


About SeaMade NV

SeaMade is the name of two combined offshore wind projects, Mermaid and Seastar, two offshore wind parks in the Belgian part of the North Sea. Mermaid has a capacity of 235 MW and is located approximately 50 km off the Belgian coast. Seastar is located closer to the mainland, approximately 40 km off the coast and has a capacity of 252 MW.

SeaMade will consist of 58 SGRE (Siemens Gamesa Renewable Energy) wind turbines and provide green energy to supply about 485,000 families and reduce CO2 emissions with 500,000 ton a year.


Project data

  • Client: SeaMade NV
  • Weight topside: 570 tons (steel)
  • Weight TP: 480 tons
  • Weight Monopile: 1,080 tons