Hollandse Kust Zuid completes foundation campaign

Last week, the last of 140 monopile foundations for the 1.5 GW Hollandse Kust Zuid (HKZ) offshore wind farm was installed.

The installation of the TP-less foundations, fabricated by Sif Group at Maasvlakte 2, was performed by Seaway 7, using the Seaway Strashnov. The foundations were installed in 2 campaigns, with the first 34 installed in 2021. According to Seaway 7, ‘installation cycle times exceeded expectations reaching productivity levels of 3 installations in less than 24-hours’. The company is also performing cable laying activities. They are expecting to complete their full scope in the coming months.

In the meantime, the installation of the Siemens Gamesa SG 11.0-200 DD, 11 MW wind turbines is in full progress. The first power was delivered to the grid at the start of August. The installation will continue in a continuous campaign of four turbines at a time until completion in early 2023.

HKZ, located around 18-35 kilometres off the Dutch coast in the North Sea, is owned by Vattenfall, BASF and Allianz. Image: © Vattenfall

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