Seaway Offshore Cables
Hornsea Project Two OWF
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Hornsea Project Two OWF

66kV Inner Array Grid Cable System

Seaway Offshore Cables was awarded the contract for the engineering, transport and installation (T&I) works related to the inner array grid cable system of the Hornsea Project Two Offshore Wind Farm (OWF) project by Ørsted Wind Power.

The Hornsea Project Two OWF is located approx. 89 km off the Yorkshire coast within the UK sector of the North Sea. The OWF consists of 165 wind turbine generators, each with a capacity of 8.4 MW and is based on an inner array grid of 165 medium voltage copper core submarine composite cables with a total length of more than 420km.

The submarine composite cables are to be manufactured and supplied by both JDR Cable Systems and Prysmian PowerLink and are subsequently to be installed by Seaway Offshore Cables utilising dedicated in-house resources such as the Cable Lay Vessel Seaway Aimery and Installation Support Vessel Seaway Moxie.

Facts & Figures
  • 165 Wind Turbine Generators

  • 1,386 MW Installed Capacity

  • 3 Offshore Substation (OSS)

  • >420 km of Submarine Cables

We look forward to continuing our collaborative relationship with Ørsted to install the entire inner array grid cable system on the Hornsea Project Two offshore wind farm. This award follows on from our reliable performance and successful completion of the installation activities for the Hornsea Project One offshore wind farm earlier this year."

Steph McNeill
Executive Vice President
Client: Ørsted Wind Power, Denmark
Location: North Sea, UK Sector
Water Depth: Up to 41 m
Scope: Pre-lay grapnel run and route clearance
Cable installation
Type of Cables: 3-core submarine composite cable
Voltage Level: 66 kV
Conductor: Copper
No. of Cables: 165
Length of Cables: >420 km
WTG’s: 165 x 8.4 MW, Siemens Gamesa Renewable Energy
Total Capacity: 1,386 MW
Schedule: One (1) continuous campaign in 2021 and 2022
Vessels: CLV Seaway Aimery
ISV Seaway Moxie
W2W Connections: TBA
W2W Transfers: TBA

Website: Hornsea Project Two
More information: 4C Offshore

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Lets have a chat!
Lars Muck
Commercial Director