For the Borssele III&IV wind farm, the foundations are fully designed and engineered in-house by Van Oord.
Design Manager Elwyn Klaver: “Less components, no steel overlap and no additional connection between the monopile and the transition piece by means of flanges or grout. These are just a few of the advantages of the extended monopile foundation. For the Borssele III&IV wind farm the foundations were designed for a highly dynamic seabed with sand dunes and therefore for a great range of water depths. The in-house design and engineering has led to an optimised foundation that does incorporate the installation challenges of extended monopiles.”
The monopiles are specifically designed for the V164 9.5 megawatts (MW) wind turbines supplied by MHI Vestas. This is the first time that 9.5 MW turbines are being used at an offshore windfarm in the Netherlands.