Project Type: Transmission reinforcement
Location: Highland

Contact Details

Liaison Manager

Jenna Black
Title: Community Liaison Manager
Telephone: 01738 453 287
Mobile: 07342 027 725
Address: Inveralmond House, 200 Dunkeld Road, Perth, PH1 3AQ

Land Manager

Chris Mangnall
Title: Wayleaves Officer
Mobile: 07285 015239
Address: 10 Henderson Road, Inverness, IV1 1SN
Status: Project Refinement

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About the project

The proposed project comprises of the following elements:

Knocknagael to Tomatin - Construct approximately 20km of 275kV double circuit overhead line between Knocknagael substation and the proposed Tomatin substation on a new alignment.
Knocknagael to Farr - Dismantle the existing 132kV overhead line between the Knocknagael substation and the Farr substation
Tomatin Substation – Construct a new 275/132kV Substation near Tomatin, adjacent to the existing Beauly to Boat of Garten 132kV double circuit overhead line.
Knocknagael Substation – existing 132kV overhead line from Beauly into Knocknagael via a new sealing end compound (where overhead lines terminate onto underground cables), and connect the proposed Knocknagael to Tomatin 275kV overhead line via a new sealing end compound.

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.

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.

What are The Holford Rules?

The Holford Rules originated in 1959 as the result of work by Lord Holford, a part-time member of the Central Electricity Generating Board (National Grid's predecessor). The Holford Rules have been augmented by both National Grid and SHE Transmission plc to reflect environmental legislation and best practice in recent years. We have continued to use them as a valuable set of guidelines for reducing the impact of our assets on landscapes.
The guidance recommends appropriate application of the Holford Rules to inform routeing. These rules advocate the application of a hierarchical approach to routeing which first avoids major areas of highest amenity, then smaller areas of high amenity, and finally considers factors such as backdrop, woodland and orientation. The Holford Rules apply the term ‘amenity’ to refer to environmental designations and classifications such as Natura 2000 sites, Sites of Special Scientific Interest (SSSI), Scheduled Monuments, Listed Buildings, National Parks.
The guidance also recognises that the key effect of overhead lines is visual and it advises that the routeing of overhead lines should consider the types of mitigation (screening) that could offset any visual effects.
In their National Policy Statement EN-5, the Government has stated that the Holford Rules “should be followed by developers when designing their proposals.” Their use is therefore Government policy, rather than a voluntary choice of SHE Transmission plc.

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. 

Scottish Government – Section 37 determination

Simon Robertson, Lead Project Manager at SSEN, said: “The application under section 37 of the Electricity Act 1989 for the Knocknagael to Tomatin overhead transmission line project has now been determined and we welcome the decision by the Scottish Government to approve our application. In our application for consent we identified and committed to environmental mitigation and a detailed environmental management plan which will ensure construction impacts are minimised. We will now prepare for the construction phase and are fully committed to keeping the local community and other interested parties updated as the project progresses.” Please see "Project Documentation" tab for Scottish Government determination and Public Notice.

Minutes from the third Community Liaison Group - Tomatin Substation

Minutes from the third Community Liaison Group - Tomatin Substation. Minutes can be found under the "project documentation" tab.

Community Liaison Group - Minutes (2) and Terms of Reference

We held our second Community Liaison Group meeting on 22 March 2017. The Community Liaison Group (CLG) is made up of representatives from the local community as well as Strathdearn Community Council, Councillors from Inverness South and project representatives from Scottish Hydro Electric Transmission plc. Following planning consent, meetings will take place at regular intervals to discuss any matters relating to the Knocknagael – Tomatin project in the lead up to and during the construction period. Minutes will be made publically available via this website and through local channels such at Strathdearn Community Council and their newsletter. The date of the next CLG is 7 June 2017 1830 – 2000. If you have any queries relating to this project please contact Jenna Black, Community Liaison Manager. The minutes and CLG Terms of Reference can be found under 'Project Documentation'.

Proposed 132 kV Tom nan Clach Windfarm – Tomatin Substation

A request had been made to National Grid by the developer of Tom nan Clach wind farm to provide a grid connection to connect the wind farm to the transmission network. Scottish Hydro Electric Transmission plc (SHE Transmission) were contracted to provide a 132kV connection spanning from the consented wind farm substation to the 132/275kV Tomatin substation, near Garbole. The wind farm developer has since opted to terminate their contract with National Grid and progress with an alternative grid connection, therefore SHE Transmission will not be progressing the Tom nan Clach project.

Community Liaison Group set up meeting

We held our first Community Liaison Group meeting on 11 January 2017. The Community Liaison Group (CLG) is made up of representatives from the local community as well as Strathdearn Community Council, Councillors from Inverness South and project representatives from Scottish Hydro Electric Transmission plc. Following planning consent, meetings will take place at regular intervals to discuss any matters relating to the Knocknagael – Tomatin project in the lead up to and during the construction period. Minutes will be made publically available via this website and through local channels such at Strathdearn Community Council and their newsletter. The date of the next CLG is 22 March 2017 1830 – 2030. If you have any queries relating to this project please contact Jenna Black, Community Liaison Manager. The minutes can be found under 'Project Documentation'.

Highland Council approve Tomatin substation proposal

Project Manager for Scottish and Southern Electricity Networks, Simon Robertson, said: “We welcome today’s decision by the Highland Council to approve our planning application for Tomatin substation. As a responsible developer we have gone through a rigorous development process, taking into account a range of technical, environmental and economic considerations. Feedback from the local community played an important part in the identification of a suitable location and design, which has been carefully designed to minimise the visual impact of the development in the surrounding area. We will now engage further with the council to address the conditions attached to the consent and are fully committed to keep the local community and other interested parties updated as we prepare for the construction phase.”

Highland Council site visit and hearing

We have received confirmation that the site visit and hearing by the Highland Council on their planning application for the proposed substation at Tomatin will take place on Tuesday 8 November 2016. All documents and drawings associated to the proposed Tomatin Substation development can be viewed via The Highland Council Planning Portal: http://www.highland.gov.uk/info/180/planning_-_applications_warrants_and_certificates/143/planning_permission/6 under reference number 16/00769/FUL.

Decision on Tomatin substation postponed

Simon Robertston, Project Manager, Scottish and Southern Electricity Networks said: “The planned substation at Garbole near Tomatin is part of a wider project to reinforce the electricity transmission network in the Strathdearn area. During the course of project, we conducted a programme of extensive consultation and have modified our plans in response to feedback received from the local community and interested stakeholders. “We note today’s announcement and will continue to work constructively with all parties to provide the information required for a fully informed decision.”

Proposal of Application Notice

We have now submitted the Proposal of Application Notice (PAN) to The Highland Council under the terms of the Town and Country Planning (Development Management Procedure)(Scotland) Regulations 2008. This notice states our intent to submit a planning application to The Highland Council to construct and operate a new 275/132kV substation near Tomatin at National Grid Reference (NGR): 275458 825177.

Document downloads

Minutes of the third Community Liaison Group - 7 June 2017
Minutes of the third Community Liaison Group - 7 June 2017

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 31 Aug 2017
Scottish Government Section 37 determination (Consultation Report)

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2017
Public Notice (Consultation Report)

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2017
Tomatin CLG minutes - June 2017
Minutes from the second CLG meeting

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 21 Jul 2017
Appendix A - Commitments Register

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 22 Mar 2017
Appendix B - Culvert Design

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 22 Mar 2017
Appendix D - Access Track Construction Details Pt 1

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 22 Mar 2017
Appendix C - Site Waste Management Plan
File Type: pdf
Published: 22 Mar 2017
Appendix D - Access Track Construction Details Pt 2

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 22 Mar 2017
Appendix D - Access Track Construction Details Pt 3

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 22 Mar 2017
Appendix E - Forestry and Access PMP

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 22 Mar 2017
Substation Archaeology

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 22 Mar 2017
Tomatin Substation - Outdoor Access Plan Final Submission

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 22 Mar 2017
Phase 1 Construction Environment Management Plan

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 22 Mar 2017
CLG start up meeting

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 31 Jan 2017
Exhbition boards 17-20 March 2015
1301

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2016
Presentation Boards for PAN event
1298

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2016
Consultation document
1306

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2016
Exhibition boards 21-23 April 2014
1304

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2016
Exhibition boards 21-23 January 2014
1305

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2016
Exhibition boards 26-27 November 2013
1307

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2016
March newsletter
1302

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2016
Public consultation event Knocknagael - Tomatin
1300

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2016
Electric and magnetic fields - the facts
1303

Related Projects: Knocknagael - Tomatin

File Type: pdf
Published: 18 Aug 2016

Local People

Chris Mangnall
  • Title: Wayleaves Officer
  • Email: chris.mangnall@sse.com
  • Mobile: 07285 015239
  • Address: 10 Henderson Road, Inverness, IV1 1SN
Jenna Black
  • Title: Community Liaison Manager
  • Email: Jenna.Black@sse.com
  • Telephone: 01738 453 287
  • Mobile: 07342 027 725
  • Address: Inveralmond House, 200 Dunkeld Road, Perth, PH1 3AQ

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