Seaway Offshore Cables
Seagreen Offshore Wind Farm
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Seagreen Offshore Wind Farm

66KV Inner Array Grid Cable System

Seaway Offshore Cables was awarded the contract for the turnkey engineering, procurement, installation and commissioning (EPIC) works related to the inner array grid cable system of the Seagreen Offshore Wind Farm project by Seagreen Wind Energy, part of SSE Renewables.

The Seagreen offshore wind farm is located approx. 27 km east of the coast of Scotland within the UK sector of the North Sea. The OWF consists of 114 wind turbine generators, each with a capacity of up to 9.5 MW and is based on an inner array grid of 114 medium voltage aluminium core submarine composite cables with a total length of up to 328km.

The submarine composite cables are to be manufactured and supplied by Hellenic Cables (part of Cenergy Holdings) and are subsequently to be installed by Seaway Offshore Cables utilising dedicated in-house resources.

Facts and figures
  • 114 Wind Turbine Generators

  • 1,075 MW Installed Capacity

  • 1 Offshore Substation (OSS)

  • 328 KM of Submarine Cables

We are looking forward to continuing our successful collaborative relationship with SSE Renewables as we help construct Seagreen. We have been active in the UK Renewables sector for over a decade and are very pleased to continue to support the ongoing energy transition in the UK."

Steph McNeill
Executive Vice President
Client: Seagreen Wind Energy, UK
Location: North Sea, UK Sector
Water Depth: Up to 60 m
Scope: Supply of submarine composite cables
Supply of submarine cable accessories
Supply of cable protection systems
Marine cable route and UXO survey
Pre-lay boulder clearance
Pre-lay grapnel run and route clearance
Cable installation, termination, testing and pre-commissioning
Type of Cables: 3-core submarine composite cable
Voltage Level: 66 kV
Conductor: Aluminium
No. of Cables: 114
Length of Cables: 328 km
WTG’s: 114 x 9.5 MW, MHI Vestas Offshore Wind
Total Capacity: 1,075 MW
Schedule: Three (3) campaigns in 2021 and 2022
Vessels: TBA
W2W Connections: TBA
W2W Transfers: TBA

Website: Seagreen Offshore Wind Farm
More information: 4C Offshore

Want to know more?
Lets have a chat!
Lars Muck
Commercial Director