Siem Offshore Contractors
Hornsea Project One Offshore Wind Farm
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Hornsea Project One OWF

Lots 2 & 4 – 33kV Inner Array Grid Cable System

Siem Offshore Contractors was awarded the contract for the engineering, transport and installation (T&I) works related to the lots 2 and 4 of the inner array grid cable system of the Hornsea Project One Offshore Wind Farm (OWF) project by DONG Energy Wind Power.

The Hornsea Project One OWF is located approx. 120 km off the Yorkshire coast within the UK sector of the North Sea. The OWF consists of 174 wind turbine generators, each with a capacity of 7.0 MW and is based on an inner array grid of 174 medium voltage copper core submarine composite cables with a total length of more than 300km.

The submarine composite cables are being manufactured and supplied by JDR Cable Systems on behalf of the client and shall subsequently be installed by Siem Offshore Contractors utilising dedicated in-house resources such as the Cable Lay Vessel Siem Aimery and Installation Support Vessel Siem Moxie.

Facts & Figures
  • 174 Wind Turbine Generators

  • 1,218 MW installed capacity

  • 3 Offshore Substation (OSS)

  • >300 km of submarine cables

Doing the right things right at the right time safely."

Johann Stulemeyer
Project Manager
Specifications
Client: DONG Energy Wind Power, Denmark
Location: North Sea, UK Sector
Water Depth: Up to 38 m
Scope: Pre-lay grapnel run and route clearance
Cable installation
Type of Cables: 3-core submarine composite cable
Voltage Level: 33 kV
Conductor: Copper
No. of Cables: 81
Length of Cables: 154 km
WTG’s: 174 x 7.0 MW, Siemens Wind Power
Total Capacity: 1,218 MW
Schedule: One (1) continuous campaign in 2018 and 2019
Vessels: CLV Siem Aimery
ISV Siem Moxie
W2W Connections: N/A
W2W Transfers: N/A

Website: Hornsea Project One
More information: 4C Offshore

jill-falenschek
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Lets have a chat!
Jill Falenschek
Sales & Marketing Assistant
+49(0)491-91243-0
jill.falenschek@siemoffshore.com