GeoSea, a part of DEME Group, has completed installation of all 54 foundations, including monopiles and transition pieces, for the 332 MW Nordsee One offshore wind project located in the North Sea.
According to, Northland Power, one of the owners of the project with 85% interest, the foundations are up to 70 meters tall, and each one weighs approximately 900 tons.
Installation was performed by GeoSea’s jack-up vessel ‘Innovation’, and the foundations were manufactured by Ambau. Installation of the inter-array cables and the offshore substation will begin in the coming months with the wind turbine installation anticipated in early 2017.
Once commissioned in 2017, the wind farm is expected to produce an annual output of more than 1,300 gigawatt-hours of electrical energy, enough to supply the equivalent of approximately 400,000 German households.
“Completion of the foundation installation is an important project milestone, and I’m pleased to report that the project remains on time and on budget,” said John Brace, CEO of Northland. “I would like to acknowledge the collective efforts of the project team and contractors, and our partner RWE; we look forward to continued collaboration over the coming months.”