We Are Scottish and Southern Electricity Networks, Operating

East Coast 400kV Overhead Line Upgrade 03

Who we are

We are Scottish and Southern Electricity Networks, operating under licence as Scottish Hydro Electric Transmission Plc (SHE Transmission) for the transmission of electricity in the north of Scotland. What is the difference between Transmission and Distribution?

Electricity Transmission is the transportation of electricity from generating plants to where it is required at centres of demand. The Electricity Transmission network, or grid, transports electricity at very high voltages through overhead lines, underground cables and subsea cables. Our transmission network connects large scale generation, primarily renewables, to central and southern Scotland and the rest of Great Britain. It also helps secure supply by providing reliable connection to the wider network of generation plans.

The Electricity Distribution network is connected into the Transmission network but the voltage is lowered by transformers at electricity substations, and the power is then distributed to homes and businesses through overhead lines or underground cables.

Overview of Transmission Projects In total we maintain about 5,000km of overhead lines and underground cables – easily enough to stretch across the Atlantic from John O’Groats all the way to Boston in the USA.

Our network crosses some of the UK’s most challenging terrain – including circuits that are buried under the seabed, are located over 750m above sea level and up to 250km long.

The landscape and environment that contribute to the challenges we face also give the area a rich resource for renewable energy generation. There is a high demand to connect from new wind, hydro and marine generators which rely on Scottish and Southern Electricity Networks to provide a physical link between the new sources of power and electricity users. Scottish and Southern Electricity Networks is delivering a major programme of investment to ensure that the network is ready to meet the needs of our customers in the future. Our responsibilities

We have a licence for the transmission of electricity in the north of Scotland and we are closely regulated by the energy regulator Ofgem.

Our licence stipulates that we must develop and maintain an efficient, co-ordinated and economical system of electricity transmission.

www.ssen-transmission.co.uk/projects/east-coast-onshore-400kv-ohl-upgrade/

East Coast 400kV Overhead Line Upgrade.indd 3 18/08/2020 09:07

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@ssencommunity 04 East Coast kV Upgrade

Project introduction

As the transmission network provider for the north of Scotland, Scottish and Southern Electricity Networks Transmission (SSEN Transmission) are responsible for the maintenance of the existing transmission network and also ensuring the network can facilitate connection requests from developers when necessary.

A number of new renewable generation schemes, including onshore wind and battery systems, requesting connection in the North East of Scotland has triggered the need for an upgrade to the East Coast 132kV transmission network which currently runs between the Craigiebuckler/Tarland Overhead Line (OHL) Tee point (west of Aberdeen) and the Tealing substation (North of Dundee).

Under our Network Operators Licence, we are required to be e cient, co-ordinated and economic, whilst having the least possible impact on people and the environment. To achieve this, a number of upgrade options have been considered against generation scenarios (scenarios comprising generators who have accepted connection oers and potential future generation). Generation scenarios in this area of the network has been variable and as this may change, it may be necessary to consider changes to the proposed upgrade solution during its development.

The options considered ranged from full replacement of the existing asset between Craigiebuckler / Tarland Tee to Tealing substation, to those which involve a reconﬁguration of the 132kV network. The 132kV network reconﬁguration as detailed below was selected as the preferred solution as it provides enhanced security of supply, enables increased power transfer across the wider network and of all the options it provides the best balance of economic, environmental and technical considerations.

• A new 132kV double circuit, steel lattice tower OHL to replace the existing single circuit OHL from Brechin substation to the Arbroath / Tealing OHL Tee point, and the existing double circuit from Arbroath / Tealing Tee point to Tealing substation. • Extension of the existing Brechin substation. • A new 275/33kV substation in the vicinity of Fiddes OR alternatively a new 132kV double circuit OHL from Fiddes 132/33kV substation to Fetteresso 275/132kV substation. • Post construction, the removal of the existing 132kV OHL between Craigiebuckler/Tarland OHL Tee point and the Tealing substation.

18 19320 21 22 23 24 25 26 27 28 29330 31 32 33 34 35 36 37 38 39340 41 42 43 44 45 46 47 48 49350 51 52 53 54 55 56 57 58 59360 61 62 63 64 65 66 67 68 69370 71 72 73 74 75 76 77 78 79380 81 82 83 84 85 86 87 88 89390 91 92 93 94 95 96 97 98 99400 01 02 03 04 05 06 07 08 09410 11 12 13 Legend 12 12 This consultation will focus on 11 11 !( Substations 810 810 09 09 Tarland 132kV 08 08 the OHL routeing of the new 07 (! 07 06 Craigiebuckler 06 05 (! 05 04 (! Craigiebucker/Tarland 04 03 03 132kV Brechin to Tealing double 02 OHL Tee Point 02 01 01 800 800 99 99 98 98 circuit OHL. 97 97 96 96 95 95 94 94 93 93 92 92 91 91 An assessment is in progress to select 790 790 89 89 88 88 87 87 between a new 275/33kV substation in 86 86 85 85 84 84 83 Fiddes 83 the vicinity of Fiddes OR a new 132kV 82 ! 82 81 ( 81 780 780 double circuit OHL from Fiddes 132/33kV 79 79 78 78 77 77 76 76 substation to Fetteresso 275/132kV 75 75 74 74 73 73 72 72 substation. We will return to consult on 71 71 770 770 69 69 68 68 this separately once the review 67 67 66 66 65 65 is concluded. 64 64 63 63 62 Brechin 62 61 (! 61 760 760 59 59 58 58 57 57 56 56 55 55 54 54 53 53 52 52 51 51 750 750 49 49 48 48 47 47 46 46 45 45 Reproduced by permission of Ordnance Survey on behalf of HMSO. 44 44 Crown copyright and database right 2021 all rights reserved. 43 Arbroath 43 Ordnance Survey Licence number EL273236. 42 Abroath/Tealing 42 (! Project No: 41 OHL Tee Point 41 740 740 Project: 39 (! 39 38 Tealing 38 Title: East Route 132kV - Upgrade 37 (! 37 36 36 Load Reinforcement Driver 35 35 34 34 Scale @ A3: 1:300,000 N 33. 33

m km 0 Drawn by: Date: 09/02/2021 0 ¯ 32 BK 0 1.75 3.5 7 10.5 14 17.5 0 2 3 317 8000m1.E9320 21 22 23 24 25 26 27 28 29330 31 32 33 34 35 36 37 38 39340 41 42 43 44 45 46 47 48 49350 51 52 53 54 55 56 57 58 59360 61 62 63 64 65 66 67 68 69370 71 72 73 74 75 76 77 78 79380 81 82 83 84 85 86 87 88 89390 91 92 93 94 95 96 97 98 99400 01 02 03 04 05 06 07 08 09410 11 12 13 Drawing: OTHER_2021_013_EastRoute132kv

www.ssen-transmission.co.uk/projects/east-coast-kv-upgrade/

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Brechin to Tealing 132kV OHL

Preferred route

SSEN Transmission published the Overhead Line Route Selection Consultation Document in February 2021.

The OHL is subject to a detailed routeing process. This ensures the final route meets technical requirements, is cost e ective, causes the least impact on the environment and least disturbance to those living, working or visiting the area. The preferred option of these routes is then consulted on before a preferred alignment is developed and further consultation takes place. Early consultation responses from statutory stakeholders have suggested a route following the existing overhead line would likely minimise additional impacts. SSEN Transmission has identified route 2 as our preferred route, but widened to include part of 1A and land in between at Montreathmont Forest, with its broader area for flexibility of alignment, it is considered to o er fewer constraints in comparison to those that route around the forest. This consultation seeks views from the public, statutory authorities and other interested stakeholders on the route options and preferred option identified as shown below.

Legend

Corridor Brechin Substation Tealing Substation Arbroath/Tealing OHL Tee Point Existing Overhead Line Preferred Route Route Options

Route 2

Route 2A Route 1A

Route 1

Route 3

Route 1B

km 0 0.5 1 2 3 4 5 Scale - 1:110,000@ A3

Project No: LT225 Project: Brechin to Tealing 132kV Overhead Line Consultation Booklet

Title: Preferred Route

Drawn by: SK / LT Date: 11/02/2021 Drawing: 120012-D-CB1-2.0.0

The information obtained from this initial consultation will be reviewed prior to conﬁrmation of the proposed route and progression to the overhead alignment stage. A Report on Consultation will be produced which will document the consultations received, and the decisions made in light of these responses. A further consultation exercise will then be held to seek your opinion on the preferred overhead line alignment.

All consultation documentation is available from our project website: www.ssen-transmission.co.uk/projects/east-coast-132kv-upgrade/

www.ssen-transmission.co.uk/projects/east-coast-kv-upgrade/

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@ssencommunity 06 East Coast kV Upgrade

Construction of an overhead line

The existing Brechin to Arbroath / Tealing Tee Point OHL is a single 132kV circuit, comprised of H-wooden poles and steel lattice towers. The existing Arbroath/Tealing Tee Point to Tealing OHL is a double 132kV circuit, comprised of steel lattice towers.

To facilitate the increased generation looking to connect, these OHL’s need to be replaced by a higher capacity, double 132kV circuit comprised of steel lattice towers.

The steel lattice towers proposed will be higher than the existing H-wooden poles and steel lattice towers on the Brechin to Arbroath / Tealing Tee Point OHL. The advantage of larger towers is that the distance between towers is greater resulting in less towers being required.

The steel lattice towers would have a nominal height of approximately 26 - 27 m (including insulators and support). The structure selection process is ongoing and current models under consideration are the L7c and L4m steel lattice towers. The spacing between towers would vary depending on topography and altitude. The speciﬁc distances would be determined after a detailed line survey, but would be approximately 250m apart.

Existing Existing Standard L7c Standard L4m steel Intermediate Pole Suspension Tower Suspension Tower lattice tower

Timeline

February 2021 Autumn 2021 Autumn / Winter 2023 Autumn 2026 Preferred Route Preferred Alignment Section 37 Construction Consultation Consultation consent granted complete & energised

April 2021 Autumn 2022 Spring 2024 Autumn / Winter 2027 Detailed Environmental Submission of Section Construction Complete removal of Assessment Commences 37 Application Commences redundant 132kV OHL

Planning application

A Section 37 application will be made under the Electricity Act 1989 for the new 132kV double circuit overhead transmission line. This will cover all aspects of the overhead line works. This application is made to the Energy Consents Unit of the Scottish Government.

www.ssen-transmission.co.uk/projects/east-coast-kv-upgrade/

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Substation Works

Brechin substation extension

The new OHL will connect into the existing Brechin substation. Two of the existing bays will be used for this connection. These bays will be extended to include necessary additional switchgear.

The substation will also be extended to include a new bay for the connection for new generation. A planning application for this extension will be submitted in Summer/Autumn 2022 with construction to commence in 2024

Brechin 132kV substation proposed layout

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A1 LIST OF ALL RELEVANT DRAWINGS OR DOCUMENTS A THAT DIRECTLY RELATE TO THE CURRENT REVISION OF A THE DRAWING '2&80(175()(5(1&( NOTES:-

1. EXISTING ELECTRICAL LAYOUT TAKEN FROM DRAWING 244_1104_0004_00_01 DATED OCT 1997 2. PLEASE REFER TO PROPOSED SLD LAYOUT DRAWING No. LT225_BREC_1117_0001_00 3. ELECTRICAL LAYOUT SHOWN IS PURELY FOR DISCUSSION B PURPOSES ONLY. B 4. AIS PLANT INFORMATION TAKEN FROM STANDARD SSE FRAMEWORK LAYOUTS 5. ALL EQUIPMENT SHOWN TO BE FINALISED AND CONFIRMED BY ENGINEER/DESIGN TEAM AND UNTIL DONE SO ALL ASPECTS OF THE SHOWN DESIGN ARE SUBJECT TO CHANGE. 6. DIMENSIONS GIVEN IN MILLIMETRES (mm) U.N.O.

LEGEND:-

C XI C

SA PI ES DISC CB CIRCUIT BREAKER (LIVE TANK) PI CT D ES ISC CB ES 114

110 111 CSE CABLE SEALING END

T-R M-Y B- B B ATTERY CT CURRENT TRANSFORMER ROOM BBN STORE C.B.

S EE ABB3 CVT CAPACITIVE VOLTAGE TRANSFORMER 15/M FO 1/003 R ROOM LAYOUT

PUBLIC ROAD S A PI

CVT ES 211 D ISC PI CB CT BBS T ES -B DISC DISCONNECTOR ES DISC M-Y B-R 214

210

I I D

D ES EARTH SWITCH

C C S S

ES ES

T C

PI DISC ES CVT PI SA CSE

I CSE CABLE SEALING END

P PI POST INSULATOR SA SURGE ARRESTER

D PROPOSED EQUIPMENT D

EXISTING

EXISTING EQUIPMENT RETAINED DRAFT CABLE TRENCHES PROPOSED FENCE

PROPOSED ROAD E E

EXISITNG ACCESS ROAD PROPOSED PLATFORM

PROPOSED LAND BOUNDARY

SA PI ES DISC PI CT ES DISC CB ES F 114 F

110 111

T-R G M-Y G B-B BATTERY ROOM BBN

STORE

C. B.

SEE ABB315/M1/003 FOR ROOM LAYOUT

H H SA PI

OHL BRECHIN TO TEALING 132kV CVT ES 211 DISC PRELIMINARY DESIGN ONLY PI CB CT BBS NOT TO BE USED FOR ES T-B DISC ES M-Y CONSTRUCTION B-R 214 210 DRAFT

J J

DISC DISC ES ES Rev: Drawn: Approved: Description:

PI LD ADDED MAP CT 0H Checked: Date: DRAFT FOR INTERNAL 11.02.21 COMMENT ONLY PI DISC ES Rev: Drawn: Approved: Description: CVT LD DRAFT PI SA 0G Checked: Date: DRAFT FOR INTERNAL CSE 10.02.21 COMMENT ONLY Rev: Drawn: Approved: Description:

PI LD LAND BOUNDARY ADDED 0F Checked: Date: DRAFT FOR INTERNAL K 09.02.21 COMMENT ONLY K Rev: Drawn: Approved: Description: LD 0E Checked: Date: DRAFT FOR INTERNAL 27.01.21 COMMENT ONLY.

SSE Inveralmond House, 200 Dunkeld Road Perth, PH1 3AQ, UK www.sse.com L DRAFT Project: L Project Number: LT000225 Location: BRECHIN Title: BRECHIN 132kV SUBSTATION ELECTRICAL LAYOUT - PROPOSED

BRECHIN 132kV SS - PROPOSED ELECTRICAL LAYOUT Drawing Status: For Information Drawn: LD SCALE 1:250 Scale: 1:200 Checked: SCALE AT 1:250 Date: 19.05.20 Approved: M Drawing Number: Sheet No: Revision No: M 0m 6.25m 12.5m 18.75m 25m Date Plotted: 11.02.2021 File Name: LT225_BREC_1104_0001_00_0H DRAFT BRECHIN SS PROPOSED ELECTRICAL LAYOUT.dwg LT225_BREC_1104_0001 00 0H 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Tealing substation

The existing bays at Tealing will be repurposed for the connection of the new OHL. No extension is currently anticipated at this moment in time.

www.ssen-transmission.co.uk/projects/east-coast-kv-upgrade/

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@ssencommunity 08 East Coast kV Upgrade

Environmental considerations

Environmental aspects Natural heritage The corridor generally comprises a mosaic of agricultural land and woodland. Woodland areas are dominated by conifer plantations, with the largest expanse at The Route Options have Montreathmont moor to the north of the corridor. There are numerous fragments of undergone comparative appraisal broadleaved and mixed woodland associated with riparian zones, ﬁeld boundaries, of potential environmental road and railway sides, and around settlements. These will provide suitable habitat for constraints grouped in categories protected species such as badger, red squirrel, pine marten, bats and otters (around riparian zones), as well as breeding birds. More wetland areas could provide suitable below which have been informed habitat of value for breeding waders and wildfowl. Further surveys will be undertaken at by desktop study and high-level the alignment stage to seek to minimise impacts on natural heritage. site appraisals: Environmentally designated sites within the corridor include the River South Esk Special Area of Conservation which contains salmon and freshwater pearl mussel and is crossed by all route options. Other designated sites include biological Sites of Special Scientiﬁc Natural heritage Interest (SSSI), geological SSSI and Geological Conservation Review sites. The preferred route has been selected to minimise impacts on environmentally designated sites.

People Within the corridor, settlement is concentrated within the town of Brechin and villages of Letham and Friockheim, as well as scattered communities and dwellings throughout. People The main local centre for the area, Brechin, is located in the north of the corridor, while Forfar is located about 2.4 km west of the corridor. The city of Dundee lies immediately south of the corridor.

Route options generally avoid the main areas of settlement. However, there are numerous dwellings and buildings scattered throughout all route options. Some route options are more highly constrained than others, and further review will be undertaken at the alignment stage to ensure su cient distance to dwellings is maintained. Cultural heritage

Landscape and Visual

Land use

Planning

www.ssen-transmission.co.uk/projects/east-coast-kv-upgrade/

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Environmental considerations cont.

Cultural heritage Land use The area has a rich and diverse heritage, with many historical and Land use throughout the corridor is dominated by arable archaeological features. The River South Esk and surroundings farmland ﬁeld systems and smaller areas of pasture. Small areas is a particular focus for cultural heritage, including the town of woodland (including woodland recorded on the Ancient of Brechin, Brechin Castle and Kinnaird Castle with associated Woodland Inventory), hedges, individual trees and shrubs are designed landscapes. scattered at low frequency through agricultural areas. Forestry at Montreathmont crosses a large part of the corridor and contains There are many designated cultural heritage assets throughout a diverse composition of conifer plantations mixed with stands the corridor. These include Scheduled Monuments, Inventory of Scots pine and birch. SSEN Transmission are committed to no Gardens and Designed Landscapes, Listed Buildings, net loss of all woodland cover on capital investment projects. Conservation Areas, non-inventory designed landscapes and Where felling is required to accommodate the overhead line, we sites on the local authority Historic Environment Record, all of will ensure that su cient tree planting would take place on the which have been considered as part of the appraisal of route project or at another location to ensure no net loss of woodland options. Generally, it is considered there will be opportunities to cover and to enable our ambition of achieving a Biodiversity minimise impacts on cultural heritage assets through design at Net Gain. the alignment stage.

Landscape and Visual Landscape character within the corridor is predominantly agricultural and large in scale, comprising low-lying, open rolling farmland, dispersed with scattered settlement. Isolated hills in the northwest contrast with the surrounding landscape, while land in the northeast is more ﬂat and open. Woodland cover is relatively sparse, although there is a large area of woodland around Montreathmont moor.

Multiple historic features, including medieval castles, iron age settlements and designed landscapes, contribute to the area’s diverse character and sense of place, which is also valued for recreation. Modern structures also feature in this landscape, including small-scale wind turbines, telecommunications masts, overhead lines (steel lattice and wood pole), and substations at Brechin and Tealing.

Visual receptors are situated in residential areas and places of work (including in Brechin, Letham and Friockheim and other communities and scattered dwellings), as well as on roads, paths and other outdoor recreational locations.

Planning Adherence to National, Regional and Local planning policy will in large part depend on avoiding or minimising potential constraints noted. Consideration is also being given to consented projects, planning proposals and potential proposals.

Once an alignment has been selected an Environmental Impact Assessment (EIA) Screening Request Report will be submitted to the Scottish Government’s Energy Consents Unit (ECU) to determine whether a full EIA is required for the project. The scope of environmental assessments to support an application for consent under Section 37 of the Electricity Act 1989 will be determined following the screening.

www.ssen-transmission.co.uk/projects/east-coast-kv-upgrade/

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@ssencommunity 10 East Coast kV Upgrade What happens now and how do I have my say?

We understand and recognise the value of the Community Liaison Manager, feedack provided y memers of the pulic Louise Anderson during all engagements and consultations. Without this valuale feedack, the project development team would e unale to progress [email protected] projects and reach a alanced proposal.

We are keen to receive your views and comments in regards to the following questions: 07384 454 233

• Has the project information provided explained the need Louise Anderson for the East Coast 132kV overhead line works? Scottish and Southern Electricity Networks, • Have we adequately explained the di erent parts of the 200 Dunkeld Road, overall project clearly? Perth, PH1 3AQ

• Do you support SSEN Transmission’s preferred route?

• Do you feel SSEN Transmission have given enough Additional information consideration to potential impacts on the environment that this project may have? Information will also be made available via the project webpage and social media channels: • Are there any additional factors, issues or concerns which you wish to bring to the attention of the Project Team regarding our proposal? Project Website: www.ssen-transmission.co.uk/projects/ east-coast-132kv-upgrade/ • Following your review of the information displayed today, how would you rate your information of the East Coast 132kV Overhead line works? Follow us on Twitter: @ssencommunity Comments

We will be seeking feedback from the members of the public and Follow us on Facebook: Statutory Bodies until 12th March 2021. @ssencommunity

All received feedback will be assessed and the proposed options adapted where necessary. Your feedback East Coast kV Upgrade 11 Thank you for taking the time to read this consultation booklet. In order to record your views and improve the e our consultation, please complete this short feedback form.

Please complete in BLOCK CAPITALS.

(Please tick one box per question only) Q1 Has the information provided explained the need for the East Coast 132kV

Your views and comments can be provided to the project team by Please use space below to provide further comments: overhead line works? ectiveness of es No completing a feedback form or by writing to Louise Anderson, Unsure Q2 Have we adequately explained the di

es No erent parts of the overall project clearly? Unsure Q3 Do you support SSEN Transmission’s preferred route?

es No Unsure Q4 Do you feel SSEN Transmission have given enough consideration to potential

impacts on the environment that this project may have?

Full name es No Unsure Q5 Are there any additional factors, issues or concerns which you wish to bring to the attention Address of the project team regarding our proposal?

Telephone

Q6 Following your review of the information displayed today, how would you rate your

Email knowledge of the East Coast overhead line works?

Very well informed now very little If you would like to be kept informed of progress on the project please tick this box. now a lot now nothing at all now a little

If you would like your comments to remain anonymous please tick this box.

Thank you for taking the time to complete this feedback form. Please submit your completed form by one of the methods below: Post: Scottish and Southern Electricity Networks, 200 Dunkeld Road, Perth, PH1 3AQ www.ssen-transmission.co.uk/projects/east-coast-kv-upgrade/ Email: [email protected] Online: www.ssen-transmission.co.uk/projects/east-coast-132kv-upgrade/ omments forms and all the information from today’s event will also be available to download from the project website. Download: C

The feedback form and all information provided in this booklet can also be downloaded from the dedicated website: www.ssen-transmission.co.uk/projects/east-coast-132kv-upgrade/ Any information given on the feedback form can be used and published anonymously as part of Scottish and Southern Electricity Networks consultation report. By completing this feedback form you consent to Scottish and Southernce at Number Electricity One Forbury Networks Place, using 43 Forbury feedback Road, for Reading, this purpose.

Scottish and Southern Electricity Networks is a trading name of: Scottish and Southern Energy Power Distribution Limited Registered in Scotland No. SC213459; Scottish Hydro Electric Transmission plc Registered in Scotland No. SC213461; Scottish Hydro Electric Power Distribution plc Registered in Scotland No. SC213460; (all having their Registered O ces at Inveralmond House 200 Dunkeld Road Perth PH1 3AQ); and Southern Electric Power Distribution plc Registered in England & Wales No. 04094290 having its Registered O Berkshire, RG1 3JH which are members of the SSE Group.

www.ssen-transmission.co.uk/projects/east-coast-kv-upgrade/

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