Scope of Work
Categories:
Submarine Cable ManufactureSubmarine Cable Installation
Lifecycle Stages:
Construction
Quantities:37.4 km submarine cable (island_link)
Cable Specifications:
TypeHVAC
Purposeisland link
Voltage90 kV
Route Length37.4 km
Source text:
Replacement of the GJ1 subsea HVAC interconnector between Greve de Lecq (Jersey) and Havelet (Guernsey) with a new 90 kV cable manufactured and installed by NKT.
Contract Details
Award Date:27 Mar 2019
Client:
Guernsey Electricity
Description
NKT was contracted by Guernsey Electricity to manufacture and install a new subsea power cable to replace the existing GJ1 interconnector between Jersey and Guernsey. The contract covers the supply and offshore installation of a 90 kV HVAC subsea cable providing up to 60 MW import capacity, restoring Guernsey’s ability to import low‑carbon electricity from France via Jersey after repeated faults on the original link. As part of the replacement contract, NKT and Guernsey Electricity also agreed a commercial settlement relating to the historic performance of the old GJ1 cable. The replacement cable was planned to be operational by the end of 2019, within a total project budget of about £30m that also included surveys, UXO clearance and land‑based works.