Scope of Work
Categories:
Submarine Cable DesignSubmarine Cable ManufactureSubmarine Cable Installation
Lifecycle Stages:
DevelopmentConstruction
Quantities:132 km submarine cable (og electrification)
Cable Specifications:
TypeHVAC
Purposeog electrification
Voltage132 kV
Route Length132 km
Source text:
Design, manufacture and installation of one 3‑core 132 kV AC subsea power cable, ~132 km route length, connecting Kollsnes onshore grid to Oseberg Field Centre and Oseberg South as part of the power-from-shore electrification project, including integrated fibre optic cables and DTS monitoring.
Contract Details
Description
Equinor awarded Nexans a major contract to deliver the power-from-shore cable system for the Oseberg electrification project. Under a framework agreement, Nexans is responsible for the design, manufacture and offshore installation of a custom 3‑core 132 kV AC subsea power cable that will connect the onshore grid at Kollsnes to the Oseberg Field Centre and Oseberg South platforms. The cable system, manufactured at Nexans’ Halden plant in Norway and installed using the cable-laying vessel Nexans Aurora from 2023, is approximately 132 km long and sized to supply up to 180 MW. It incorporates two integrated fibre optic cables with distributed temperature sensing to support condition monitoring and early fault detection. The contract, valued at more than NOK 800 million, is a key element of Oseberg’s partial electrification, enabling substantial reductions in CO2 emissions from the offshore facilities.