Project Type: Transmission reinforcement
Location: Western Isles, Highland

Contact Details

Liaison Manager

Lisa Marchi-Grey
Title: Community Liaison Manager
Telephone: 01463 728072
Mobile: 07825 015507
Address: 10 Henderson Road, Inverness, IV1 1SN

Land Manager

Ali MacLeod
Title: Land Manager
Mobile: 07500 912996
Address: 10 Henderson Road, Inverness, IV1 1SN
Status: Early Development

Latest

Western Isles Notice of Interest Form

In March 2018, SSEN held a town hall meeting in Stornoway with local developers to seek feedback on expected levels of generation capacity via a notice of interest form. If you are a local developer, and would like to share details of your plans with us please fill out the notice of interest form using the link above. Please note that this is not an application for a connection. If you have any queries about the form please contact westernisles@sse.com. Alternatively if you wish to make a formal application to connect please visit: https://www.ssepd.co.uk/Connections/

Project overview

We are proposing to construct a High Voltage Direct Current (HVDC) connection between the island of Lewis and the Scottish mainland. The Western Isles Connection will be used to transmit electricity generated by renewable developments on the Western Isles to areas of demand around our towns and cities.

 

Why is the project required?

As the transmission licence holder in the north of Scotland we have a duty under Section 9 of the Electricity Act 1989 to facilitate competition in the generation and supply of electricity. We have obligations to offer non-discriminatory terms for connection to the transmission system, both for new generation and for new sources of electricity demand.

The aim of the project is to enable renewable energy to connect to our transmission network. Under our Network Operators Licence this connection should be efficient, co-ordinated and economic, whilst having the least possible impact on the environment.

Project elements

The project is made up of four main elements:

  • A HVDC Converter and associated Alternating Current (AC) substation at Arnish Point, Stornoway
  • A HVDC Converter and associated AC substation within the existing Beauly Substation footprint
  • A HVDC underground cable between Beauly Substation and Dundonnell, on the west coast
  • A HVDC subsea cable between Arnish Point and the land fall at Dundonnell

Needs Case

•Sets out the need for the transmission connection

•Informed by applications for connection from generators

•Includes a review of the options considered and process to reach a proposed technical solution

•Includes an in-depth Cost Benefit Analysis (undertaken by National Grid)

•Considers socio-economic impacts for local area

•Must be presented with a solution that is advanced enough to meet contracted connection dates – planning consents, design, wayleaves, etc.

 

 

The data in this map is provided for indicative purposes only and may be subject to change. Scottish Hydro Electric Transmission plc do not accept responsibility for its accuracy, completeness or validity. The data should not be copied, reproduced or utilised externally without permission.

Who is Scottish and Southern Electricity Networks?

Scottish and Southern Electricity Networks is the trading name of Scottish and Southern Energy Power Distribution Limited, Scottish Hydro Electric Transmission plc, Scottish Hydro Electric Power Distribution plc and Southern Electric Power Distribution plc.

How are Transmission network upgrades paid for?

Investments in projects are made by SHE Transmission plc. Electricity transmission companies are authorised to recover the costs of such investments through 'use of system' charges which are levied by National Grid Electricity Transmission plc on generators and suppliers of electricity. Suppliers recover their costs from all electricity customers. In order to protect the interests of customers, the transmission companies have to demonstrate to the energy regulator, Ofgem (Office for Gas and Electricity Markets) that proposed investments are necessary, are efficient and are economical so that the charges which are ultimately levied on all electricity customers are justified.
This means SHE Transmission is subject to a funding mechanism established by Parliament and regulated by Ofgem. Cross subsidies between different businesses in the SSE group is not permitted.

How are our proposals scrutinised?

The Scottish Ministers are responsible for determination of applications submitted under Section 37 of the Electricity Act 1989. Both statutory consultees and members of the public have the right to submit their representations on the application. All representations will be considered by Scottish Ministers in their determination of the application.
The Office for Gas and Electricity Markets (Ofgem), as the regulator, has to approve all investment so project proposals are developed under license conditions.
Preferred route corridors chosen will comply with revised ‘Holford Rules’ which are the recognised industry approach to routeing overhead lines amended to reflect Scottish circumstances.

How and to what extent are electricity consumers' interests considered?

We are regulated by the Office for Gas and Electricity Markets (Ofgem), the regulator responsible for representing consumers' interests. Electricity consumer interests are therefore one of our key drivers and this is enshrined in our statutory duties under the Electricity Act.
In particular we have a statutory duty to develop, maintain and operate an efficient, economic and co-ordinated transmission system. Since the costs of these projects will ultimately be paid for by electricity consumers, we have a responsibility to take cost into account with due weighting in a comparison against other important factors.

What is the transmission network?

It’s the highest voltage electricity network in the UK – the ‘motorway network’ of the energy world. It transmits large quantities of electricity over long distances via wires carried on a system of mainly metal towers (pylons) and large substations. Transmission voltages in Scotland are 132kV, 275kV and 400kV. Larger generation schemes usually connect to the Transmission system.

The lower voltage parts of the system are called distribution networks. In Scotland, these local networks operate below 132kV whereas in England the distribution network includes 132kV. 

Pre-application consultation events

Great turnout, over 30 members of the public and stakeholders were welcomed at The Cabarfeidh Hotel in Stornoway on Monday to talk to the project team at the pre-application event for the marine cable due to be submitted in April 2018. Further events are being held at: The Argyle Hotel Ullapool - Wednesday 14th March 3pm - 7pm Badcaul Primary School - Thursday 15th March 3pm - 7pm

Pre-application consultation events

Scottish and Southern Electricity Networks (SSEN) is proposing to install a new submarine electricity cable between Stornoway and Dundonnel to enable the connection of renewable energy. The project team will be in attendance for this open door event where members of the community can drop in at any time to receive information and ask any questions on the proposals. The Cabarfeidh Hotel Stornoway Monday 12th March 3pm - 7pm The Argyle Hotel Ullapool Wednesday 14th March 3pm - 7pm Badcaul Primary School Badcaul Thursday 15th March 3pm - 7pm

Consultation on treatment of non-mainland GB onshore wind projects

We have today responded to the UK Government consultation on treatment of non-mainland GB onshore wind projects, to read our response please go to the ‘Project documentation’ section of the project website

Project Tender Update

Scottish Hydro Electric Transmission is currently undertaking a competitive tender exercise for the whole of the project and is working towards identifying a preferred Principal Contractor by the end of March 2017 with the overall project delivery currently anticipated to be by the end of September 2021.

Document downloads

SSEN - Western Isle Event A4 12pp - WEB.pdf

Related Projects: Western Isles

File Type: pdf
Published: 02 Mar 2018
SSEN - Western Isle Marine License Event A0 Boards x8 - 19871 - WEB.pdf

Related Projects: Western Isles

File Type: pdf
Published: 02 Mar 2018
Consultation on treatment of non-mainland GB onshore wind projects (Consultation Report)

Related Projects: Orkney, Western Isles, Shetland

File Type: pdf
Published: 31 Jan 2017
Subsea cable route Grabhair to Arnish
1457

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016
Overhead line route
1455

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016
Stornoway substation site plan
1456

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016
Needs case stakeholder summary
1454

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016
Lewis infrastructure route options
1453

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016
Lewis infrastructure leaflet
1451

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016
Lewis infrastructure event information
1452

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016
Consultation boards
1449

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016
Balblair footpath drawings
1448

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016
Arnish point consultation boards
1445

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016
Altyre footpath drawings
1447

Related Projects: Western Isles

File Type: pdf
Published: 18 Aug 2016

Local People

Lisa Marchi-Grey
  • Title: Community Liaison Manager
  • Email: lisa.marchi@sse.com
  • Telephone: 01463 728072
  • Mobile: 07825 015507
  • Address: 10 Henderson Road, Inverness, IV1 1SN
Ritchie Hart

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