Vattenfall has selected Seaway 7 as one of the partners to develop the Dutch offshore wind farm Hollandse Kust Zuid (HKZ) 1 & 2.

Seaway 7

Image: Seaway 7 selected by Vattenfall as partner for HKZ 1 & 2 projects. Photo: Courtesy of SUBSEA 7.

Seaway 7 stated that its scope of work includes transportation and installation of the 76 monopile foundations and laying of the inter-array cables. The work will be led by Seaway 7’s main office in the Netherlands.

Additionally, Seaway 7 was chosen as one of Vattenfall’s partners for the ongoing tender for the HKZ 3 & 4 offshore wind farm. The contract will add 76 monopiles and associated array cables to the program of work, if the project is awarded to Vattenfall by the Dutch Government.

Subsea 7 Renewables & Heavy Lifting senior vice president Steph McNeill said: “We look forward to working collaboratively with Vattenfall as a trusted partner to support the installation of the Hollandse Kust Zuid wind farms and help to deliver the first zero-subsidy offshore wind projects in the Netherlands.”

The HKZ 1 & 2 wind farm, which is being developed by Vattenfall, is the first subsidy-free wind farm in the Netherlands and will be located about 30km from the coast in the North Sea. When operational, the HKZ 1 & 2 will be able to supply 760MW of clean electricity, which will be enough to power about 1-1.5 million Dutch households.

Subject to Vattenfall’s award and its final investment decision, the integrated offshore installation activities for both the HKZ 1 & 2 and HKZ 3 & 4 wind farm projects are expected to take place in 2022 with the help of Seaway 7’s heavy lift and cable lay vessels.

Few days ago, Vattenfall also selected Siemens Gamesa as the preferred supplier to supply its 10MW offshore wind turbine for the HKZ 1 & 2 and HKZ 3 & 4 wind farms. The project will include a total of 152 turbines.

Pending final developments, Siemens Gamesa will supply its new SG 10.0-193 DD turbines for Vattenfall’s Hollandse Kust Zuid 1&2 and Hollandse Kust Zuid 3&4 projects. For the Hollandse Kust Zuid 1&2 project, about 76 turbines will be installed.