Scope of Work
Categories:
Submarine Cable DesignSubmarine Cable ManufactureSubmarine Cable InstallationOnshore Cable DesignOnshore Cable ManufactureOnshore Cable Installation
Lifecycle Stages:
DevelopmentConstruction
Quantities:90 km submarine cable (offshore_grid_connection), 90 onshore_cables
Cable Specifications:
TypeHVDC
Purposeoffshore grid connection
Voltage320 kV
Route Length90 km
Source text:
TenneT awarded Nexans the contract to supply and install the DolWin6 cable system, comprising two parallel XLPE-insulated 320 kV DC cables, each with a route of about 90 km between the DolWin kappa offshore converter and the Emden/Ost onshore converter, including ~45 km sea and ~45 km land sections.
Contract Details
Description
Nexans was awarded a contract by TenneT in July 2017 to deliver the complete high-voltage direct current cable system for the DolWin6 grid connection in the German North Sea. The scope covered design, manufacture, logistics and installation of two parallel 320 kV DC cable circuits linking the DolWin kappa offshore converter platform to the Emden/Ost onshore HVDC converter and transformer station. Nexans supplied XLPE-insulated submarine DC cables manufactured in Norway, installed along the approximately 45 km offshore route through the Wadden Sea, and separate land DC cables produced in Belgium for the roughly 45 km onshore section between Hilgenriedersiel and Emden. The cable system, with a total route length of about 90 km per pole and a combined transmission capacity of 900 MW, was completed and commissioned in 2023 and had an approximate contract value of EUR 100 million.