Scope of Work
Categories:
Submarine Cable DesignSubmarine Cable InstallationOnshore Cable DesignOnshore Cable Installation
Lifecycle Stages:
DevelopmentConstruction
Quantities:6.5 km submarine cable (export), 1.2 onshore_cables
Cable Specifications:
TypeHVAC
Purposeexport
Voltage66 kV
Route Length7.7 km
Source text:
"Each Array is connected electrically in a radial circuit with a separate submarine export cable to shore at Cambois Bay. Connected via Transition Joint Bays located near the shoreline, the onshore cable route extends 1.2 km to a substation located within the old Blyth Power Station land" (Boskalis project sheet for Blyth Offshore Demonstrator – Export Cable and Shore Landing).
Contract Details
Client:
EDF
Description
EDF Energy Renewables appointed Boskalis Subsea Cables as contractor for the export and inter-array cable works on the Blyth Offshore Demonstrator. Boskalis’s scope covered engineering and design support, supply management, and the installation of about 14 km of 66 kV cables and accessories for Array 2, including the single radial export cable from the turbine array to Cambois Bay and the inter-array links. The company undertook pre-lay survey activities and two pre-lay grapnel runs, performed shore-end landing operations, laid and buried the subsea cables using the cable lay vessel Ndurance and dedicated burial tools, and completed termination and testing. For the export system specifically, Boskalis installed approximately 6.5 km of 66 kV subsea export cable and around 1.2 km of associated 66 kV onshore cable connecting the Cambois Bay landfall to the onshore substation at the former Blyth Power Station site during 2017–2018.