Vattenfall has signed final contracts with Prysmian Powerlink S.r.l. and B.V. Twentsche Kabelfabriek (TKF) for the manufacturing and supply of the inter-array cable systems for the Hollandse Kust Zuid 1-4 offshore wind farm.
The inter-array cable systems will connect approximately 140 Siemens Gamesa 11 MW wind turbines with two offshore high voltage stations in the Dutch North Sea.
The selection of the inter-array cable suppliers took place through two tendering processes. The Netherlands-based TKF will supply the inter-array cables for Hollandse Kust Zuid 1 & 2, while Italy’s Prysmian will supply the cables for Hollandse Kust Zuid 3 & 4.
Catrin Jung, Head of Offshore Wind Vattenfall, said: “Hollandse Kust Zuid is a flagship project for Vattenfall and for the Dutch energy transition. We look forward to working with TKF and Prysmian, both highly experienced companies, to make this project a success.”
The contracted scope for TKF includes the manufacturing and delivery of about 150 kilometres of 66 kV aluminium core inter-array cables and accessories to be installed in Hollandse Kust Zuid 1 & 2. The manufacturing of the cables will take place in Lochem and Haaksbergen, the Netherlands. The delivery of the cables is expected in 2022.
For Hollandse Kust Zuid 3 & 4, Prysmian will manufacture and supply about 172 kilometres of 66 kV XLPE-insulated inter-array cables and accessories. The manufacturing will take place in Nordenham, Germany, and the delivery is expected in 2022.
Subsea 7 will transport and install the wind farm’s inter-array cables.
The Hollandse Kust Zuid wind farm is being developed by Vattenfall as the first subsidy-free wind farm in the Netherlands. It will be fully commissioned in 2023 and will have an installed capacity of approximately 1.5 GW.