Country & Landfall 1

Country
United Kingdom
correct
Landfall
Stornoway
correct
Cable Type Landfall To Converter
Underground
correct
Length Land Cable To Converter
1.00 Km
correct
AC Voltage
150 kV
correct
Converter
Arnish
correct
Cable Type Converter To Substation
Underground
correct
Substation
Arnish
correct

Subsea Cabling

Cable Name Western Isles Link correct
Cable Type Power Cable correct
Cable Current HVDC correct
Status Consent Application Submitted correct
Status Comments correct
Capacity MW 450 MW correct
Cable Tech correct
Total Length of cable 156.00 Km correct
Length Submarine Km 80.00 Km correct
Length Land Km 76.00 Km correct
DC Voltage 320 kV correct
AC Voltage correct
Configuration Monopolar correct
Project Cost Mill 1000.00 Mill. correct
Project Cost Currency EUR correct
Website https://www.ssepd.co.uk/WesternIsles/ correct
Project Comments As well as the submarine interconnector infrastructure on the Isle of Lewis is to be upgraded, under the Lewis infrastructure works. The initial plan was for two new onshore circuits to link Stornoway and Gravir, the amount of capacity that needs to be transferred is lower than original estimates and therefore it is foreseen that only one circuit is required.

Country & Landfall 2

Country
United Kingdom
correct
Landfall
Ullapool
correct
Cable Type Landfall To Converter
Underground
correct
Length Land Cable To Converter
75.00 Km
correct
Converter
Beauly
correct
Cable Type Converter To Substation
Underground
correct
Substation
Beauly, nr. Inverness
correct

Organisations

RoleOrganisation 
Operator correct
Owner-Offshore Transmission correct
Surveyor-Geophysical correct
Surveyor-Geotechnical correct
Surveyor-Other correct
Vessel-Survey(Geophysical) correct
Vessel-Survey(Geophysical) correct
Vessel-Survey(Geotechnical) correct

Events

Date Event Description
Sep-2021 Operation - Fully Commissioned The project is scheduled to be constructed by this year.
Source: Visit
correct
2018 Installation - Cable installation Installation is scheduled to begin in this month.
Source: Visit
correct
Apr-2017 Planning - Tender Process The developer is scheduled to award contracts to a preferred bidder.
Source: Visit
correct
Apr-2017 Other - The developer is aiming to submitt a needs case to Ofgem in the spring.
Source: Visit
correct
31-Jan-2017 Planning - Strategy or Policy Development A consultation ended regarding the Contracts for Difference (CfD) and non-mainland onshore wind farms. The Government was seeking views on maintaining these project as onshore wind rather than allowing them access to Pot 2 (less established technologies). The construction of this link depends on the amount of onshore wind projects on the islands. Any delays to, or cancellation of, the onshore wind farms will a direct affect on the link.
Source: Visit
correct
2017 Planning - Consent Authorised The project is scheduled to attain approval in this year.
Source: Western Isles Connection - Consultation, October 2015
correct
2017 Installation - ONSHORE Construction Starts Installation will begin in this year, although early estimates were stated for 2015 or 2016.
Source: Visit
correct
10-Aug-2016 Planning - Site Investigation Geophysical, geotechnical, benthic and land surveys were completed. Surveys techniques included side scan sonar, magnetometer, sub bottom profiler, 80 CPT's and vibrocores, and 26 benthic drop down video and grab sampling stations.
Source: Visit
correct
30-Mar-2016 Planning - Consent Application Submitted The final applications are due to be submitted in Q1 of this year.
Source: Visit
correct
2016 Planning - Other Application Submitted Update: This seems to have slipped into this year. Orginally: By the end of 2015 the developer plans to submit a Needs Case to the Office of Gas and Electricity Markets (Ofgem), this outlines the need for the transmission reinforcement. This will be followed by a Costs and Outputs submission to Ofgem.
Source: Visit
correct
28-Jun-2013 Planning - Consent Application Declined Ofgem returned the needs case submission to SHE Transmission because Ofgem stated that it could not perform a needs case assessment with the given information. Items that needed to be reviewed by SHE Transmission were timing of the submission given the government is reviewing additional support for developers and how this would impact timetables of renewable projects, and issues relating to the supply chain that could create an early or late delivery which in turn could affect developers.
Source: Visit
correct
14-Jun-2013 Planning - Other Application Submitted The needs case for the project was submitted to the regulator. This submission details the need for the project, and explains why it was chosen over other options and how to proceed with the work. Ofgem will assess the project in terms of efficiency and economic viability. Should the project be given the green light a decision will be made as to whether to allow a financial investment to be made.
Source: Visit
correct

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