Scope of Work
Categories:
Onshore Cable DesignOffshore Converter DesignOnshore Converter InstallationOnshore Converter O&MSubmarine Cable ManufactureSubmarine Cable InstallationSubmarine Cable DesignOffshore Converter O&MOnshore Converter ManufactureOnshore Cable O&MProject ManagementSubmarine Cable O&MOffshore Converter InstallationOnshore Converter DesignOnshore Cable ManufactureOffshore Converter ManufactureOnshore Cable Installation
Lifecycle Stages:
DevelopmentConstructionOperations & Maintenance
Quantities:150 km submarine cable (export), 180 onshore_cables, 1 offshore converter, 1 onshore converter, 150 km submarine cable (offshore_grid_connection), 7.5 km submarine cable (generation_export)
Cable Specifications:
TypeHVDC
Purposeexport
Voltage320 kV
Route Length165 km
Source text:
800 MW ±320 kV HVDC Light export link from DolWin alpha to Dörpen West/Heede, using a 75 km subsea section and 90 km land section of extruded DC cable.
Contract Details
Award Date:28 Jul 2015
Client:
TenneT
Description
ABB acted as the turnkey HVDC contractor for TenneT on the DolWin1 offshore grid connection. The company deployed its HVDC Light (VSC) technology and was responsible for overall system design and engineering, and for the design, supply and installation of both the offshore and onshore converter stations. ABB also provided the complete HVDC cable system, comprising extruded DC submarine and underground cables transmitting 800 MW at ±320 kV over a 165 km route between the DolWin alpha offshore converter platform and the Dörpen West/Heede onshore converter station. The scope covered development activities (system and cable design) and construction-phase works (manufacture, installation and commissioning of the converter stations and the subsea and land export cables) up to handover to TenneT in 2015.