Scope of Work
Categories:
Submarine Cable DesignSubmarine Cable ManufactureSubmarine Cable InstallationOnshore Cable DesignOnshore Cable ManufactureOnshore Cable Installation
Lifecycle Stages:
DevelopmentConstruction
Quantities:195 km submarine cable (export), 60 onshore_cables
Cable Specifications:
TypeHVAC
Purposeexport
Voltage220 kV
Route Length64 km
Source text:
Three 220 kV export circuits comprising parallel subsea cables of approximately 64–65 km route length each, forming the Seagreen Phase 1 OFTO export link between the offshore substation and landfall at Carnoustie.
Contract Details
Award Date:11 Jun 2020
Client:
SSE
Description
In June 2020, SSE Renewables awarded Nexans a turnkey EPCI contract for the Seagreen Phase 1 export cable system, which forms the main transmission link later transferred into the Seagreen Phase 1 OFTO. Nexans is responsible for the design, manufacture, testing and installation of three high‑voltage 220 kV offshore export cables of around 65 km each and three 220 kV onshore export cables of around 20 km each, connecting the Seagreen offshore wind farm to landfall at Carnoustie and onward to the new Tealing substation. The subsea cables are manufactured at Nexans’ Charleston, US facility and installed using its Aurora cable‑laying vessel, while the land cables are produced at Charleroi, Belgium. The contract covers both offshore and onshore sections and supports evacuation of up to 1,075 MW of wind power into the GB transmission system.