Seaway Offshore Cables
Kaskasi Offshore Wind Farm
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Kaskasi Offshore Wind Farm

33KV 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 Kaskasi offshore wind farm project by innogy Kaskasi.

The Kaskasi offshore wind farm is located approx. 35 km north-west of the island of Heligoland within the German Bight sector of the North Sea. The OWF consists of 38 wind turbine generators, each with a capacity of up to 9.0 MW and is based on an inner array grid of 42 medium voltage aluminium core submarine composite cables with a total length of up to 52km.

The submarine composite cables are to be manufactured and supplied by Twentsche Kabelfabriek (part of TKH Group) 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 and figures




We are pleased to continue our partnership with innogy on the Kaskasi project, after having collaborated on other projects such as Nordsee One and Triton Knoll. It will benefit from being managed as an integrated foundation and cable installation project leveraging the available capabilities within Seaway 7."

Steph McNeill
Executive Vice President
Client: Innogy Kaskasi, Germany
Location: North Sea, German Sector
Water Depth: Up to 26 m
Scope: Supply of submarine composite cables
Supply of submarine cable accessories
Supply of cable protection systems
Supply of subsea crossing materials
Pre-lay grapnel run and route clearance
Cable installation, termination, testing and pre-commissioning
Type of Cables: 3-core submarine composite cable
Voltage Level: 33 kV
Conductor: Aluminium
No. of Cables: 42
Length of Cables: 52 km
WTG’s: 38 x 9.0 MW, Siemens Gamesa Renewable Energy
Total Capacity: 342 MW
Schedule: One (1) continuous campaign in 2021 and 2022
Vessels: CLV Seaway Aimery
ISV Seaway Moxie
W2W Connections: TBA
W2W Transfers: TBA

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

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Lars Muck
Commercial Director