Sif Group has completed the first two of the 140 monopiles to be manufactured for Vattenfall’s 1.5 GW Hollandse Kust Zuid 1-4 wind farm.
With a combined weight of 115,000 tons, the 140 monopiles are designed in such a manner that they do not require transition pieces. The design is said to allow faster installation and cost reductions.
The monopiles will support Siemens Gamesa’s SG 11.0-200 DD wind turbines installed at the site some 18 kilometres off the Dutch coast, in the area between The Hague and Zandvoort.
As previously reported, Sif expects to produce between four and five monopiles for the project every week, barring any negative effects caused by the COVID-19 pandemic.