Project Type: Transmission reinforcement
Location: Aberdeenshire, Moray, Highland

Contact Details

Liaison Manager

Gary Donlin
Title: Community Liaison Manager
Mobile: 07384 624 777
Address: 1 Waterloo Street, Glasgow, G2 6AY

Land Manager

George Leggat
Title: Land Manager
Mobile: 07785 474512
Status: Project assessment

About the project

North East 400 kV Reinforcement Works 

Scottish and Southern Electricity Networks (SSEN), operating as Scottish Hydro Electric Transmission plc (SHET) under licence, has plans to reinforce the existing 275 kV overhead line connecting the substations at Blackhillock, Keith, Kintore and Peterhead to enable operation at an increased voltage of 400 kV. The reinforcement works would involve replacing the insulators and fittings on the existing steel lattice towers, as well as reconfiguring a short section of the overhead line to divert it out of Keith substation. The works may also include replacing the existing conductors strung along the overhead line route, depending on the outcome of condition assessments which are currently underway. 

These reinforcement works are required to allow increased generation capacity to the transmission system, while keeping the network fully operable and compliant with all necessary technical standards.  Without these necessary reinforcements, required in conjunction with the Rothienorman, New Deer and Peterhead, the existing network cannot facilitate all required generation connections in the North East of Scotland.

North East and East Coast Information Brochure

Over the coming decade SSEN plan to undertake substantial efforts to maintain, reinforce and improve our Transmission Network in the North East and East Coast of Scotland. As part of this process we have created an information brochure to help paint the bigger picture of what we are planning, why we are doing so and when we intend carry out works in the local area. Please click here to view or download our brochure from the Project Documentation tab and get in touch with any questions or queries you may have.

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. 

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

SHE Transmission 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.

How are 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.

Planning Application Submitted

SSEN has this week submitted a Section 37 planning application to the Scottish Governments Energy Consents Unit relating to our proposals to upgrade the existing Overhead Line network in the North East of Scotland from 275kV to 400kV. Following on from our week of consultation events in November, we have now also completed an Environmental Impact Assessment for this proposed development – a non technical summary of this document is available within the Project Documentation Tab of the website. The full EIA can be accessed via the Energy Consents Unit website where any representations to the application may be also be submitted at; by email to The Scottish Government, Energy Consents Unit mailbox at or by post, to The Scottish Government, Energy Consents Unit, 4th Floor, 5 Atlantic Quay, 150 Broomielaw, Glasgow, G2 8LU, identifying the proposal and specifying the grounds for representation.

Feedback Period Open

SSEN would like to thank all who took the time to attend our recent consultation events in Rothienorman, Keith, Peterhead and Kintore. It was fantastic to see such a great turn out from members of the local community and to hear their thoughts and concerns on our proposal for the North East Overhead Line upgrade from 275kV to 400kV and on our proposal for a new 400kV substation at Peterhead. Our deadline for feedback following these events is on the 7th of December and the project Community Liaison Manager will be discussing all submitted feedback with the project team over the coming weeks. Once we have done this we will be in touch with residents to provide a further update on the project, however in the meantime if you have any queries or issues then please do not hesitate to contact the project Community Liaison Manager, Gary Donlin, on 07384 798 101 or

North East Consultation Events

SSEN will be visiting various local communities across the North East Region to discuss our plans for reinforcing and upgrading our current Over Head Line from 275kV to 400kV. We will be visiting the following locations; November 19th - Rothienorman Bowling Club, Greenview Centre (15:00 - 19:00) November 20th - Keith Sports and Community Centre (15:00 - 19:00) November 21st - Peterhead Rescue Hall (14:00 - 19:00) November 22nd - Kintore Parish Church Hall (15:00 - 19:00) We will make sure to advertise these events in local media outlets closer to the time, we look forward to meeting as many members of the local community there as possible

North East 400kV OHL Reinforcement Works - Scoping Report

North East 400kV & Eastern Reinforcements (Nov 2019

Related Projects: Peterhead Substation, Rothienorman Substation, New Deer Substation, North East 400kV, St Fergus Substation, Alyth 275kV Substation & Reactive Compensation

File Type: pdf
Published: 24 Oct 2019
North East 400kv OHL Scoping Report
File Type: pdf
Published: 02 Oct 2018
North East OHL Reinforcement Brochure
File Type: pdf
Published: 26 Nov 2018
Section 37 Application Advert - NE400

Related Projects: North East 400kV

File Type: pdf
Published: 08 Mar 2019
EIA - Volume 1 - Non-Technical Summary

Related Projects: North East 400kV

File Type: pdf
Published: 08 Mar 2019
EIA - Volume 1 - NTS Figure 1 - Location Plan and Overview

Related Projects: North East 400kV

File Type: pdf
Published: 08 Mar 2019
EIA - Volume 1 - NTS Figure 2 - Proposed Development

Related Projects: North East 400kV

File Type: pdf
Published: 08 Mar 2019

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