Sea Installer and Sea Challenger Getting the Job Done

Operating in its element 1 2021

April 2020, with the vessels Sea Installer and Sea Challenger, GeoSea, part of DEME Offshore, has delivered an impressive performance. The company carried out the transport and installation of 94 foundations and turbines for the offshore wind farm Borssele 1&2.

The Danish company Ørsted is the owner of the wind farm. According to Henrik Egholm, EPC director at the company, a milestone has been achieved in various aspects: “The design and construction teams of our contractors have put a lot of energy into the development of Borssele 1&2 over the past years. We can certainly qualify it as very professional that this has been achieved completely safely and, moreover, in accordance with the planning and budget under the Covid-19 circumstances. That we will be delivering an amount of sustainable energy with these wind farms that equals the annual electricity consumption of one million Dutch households makes this particularly special.”

Facts and figures on the offshore wind farm Borssele 1&2

Wind farm Borssele 1&2

The wind farm covers a surface of 128.3 km2 and is located 23 kilometers off the Dutch coast in the North Sea. The water depths vary from 14 to nearly 40 meters. The park consists of in total 94 Siemens Gamesa 8 MW wind turbines, which represents a capacity of 752 MW. The turbines are 200 meters high and equipped with a new large rotor of no less than 167 meters.

Sea-Installer lifting turbine blade

Source: reference and images made available by DEM

Sea-Installer lifting turbine blade

Source: reference and images made available by DEM

Sea-Installer fully loaded with 4 wind turbines

Source: reference and images made available by DEM

The NG-9000C

The Sea Installer and Sea Challenger are designs from the NG series of GustoMSC multi-purpose jack-ups. The NG-9000C is the most applied jack-up design within the renewables market.