Kinardochy Substation Information Event - SSEN Transmission · 2020. 8. 4. · Kinardochy...

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Kinardochy Substation Information Event August 2020

Transcript of Kinardochy Substation Information Event - SSEN Transmission · 2020. 8. 4. · Kinardochy...

  • Kinardochy Substation Information EventAugust 2020

  • 02 Kinardochy Substation Information Event

    www.ssen-transmission.co.uk/projects/kinardochy-substation

  • www.ssen-transmission.co.uk/projects/kinardochy-substation

    Kinardochy Substation Information Event 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 betweenTransmission 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 ProjectsIn total we maintain about 5,000km of overhead lines and underground cables – easily enough to stretch across theAtlantic from John O’Groats all the way to Boston in the USA.

    Our network crosses some of the UK’s most challengingterrain – 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 ofelectricity transmission.

  • www.ssen-transmission.co.uk/projects/kinardochy-substation

    04 Kinardochy Substation Information Event

    Project need and proposed development

    Project need

    The power flow on the Beauly – Denny overhead line (OHL) is expected to increase over the next 10 years as more generation connects on the wider system; namely generation towards the west coast, north of Beauly substation and in and around Caithness.Connecting generation can cause changes to the voltage levels along affected circuits. These changes could mean the network, without intervention, would not meet the voltage requirements set out within the National Energy Transmission System Security and Quality of Supply Standard (NETS SQSS).

    Our network and system studies have shown that currently contracted generation will cause such a change, within the Tummel Bridge area, and will require reactive power support to be installed to maintain voltage levels under a number of different system operating scenarios. Reactive power support helps the system by ensuring the voltage levels stay within the required limits and assists in the continuation of the quality and supply of electricity across the network.

    To ensure the safe, efficient and coordinated operation of our network, it is proposed that a new reactive power substation is connected at the proposed Kinardochy substation site.

    Proposed Development

    Kinardochy substation

    The substation will connect into the existing Fort Augustus to Denny overhead line 275kV circuit. The circuits shall be ‘turned in’ to a new 275kV reactive compensation substation, which shall be built to a 400kV standard. The substation shall comprise of both Gas Insulated Switchgear (GIS) and Air Insulated Switchgear (AIS), the key components comprise:

    • GIS double busbar, Switchgear hall and control building• Reactive power support equipment including:

    - 100MVAr Mechanically Switched Capacitor with Dampening Network (MSCDN)

    - -+/-225MVAr Static Compensator (STATCOM) Interconnecting gas-insulated and air-insulated bars

    • Associated electrical infrastructure• Permanent access track off the B846.

    A level platform shall be created to accommodate the electrical plant, structures, internal access and drainage to support operational requirements. As a result,it is anticipated that the construction of the platform will require considerable earthworks to achieve a cut and fill balance of material.

    The main buildings within the compound will house the gas insulated switchgear, control building and internal control equipment of the STATCOM. The buildings are proposed to be steel portal frame with external cladding and will be of a maximum height of 16m.

    The works will require forestry clearance necessary for the contractor’scompound and welfare area, substation platform and permanent access track.

    Overhead line tie in

    The proposed substation is located adjacent to the existing Fort-Augustus to Denny overhead line, which carries both 275kV and 400kV circuits.

    The proposed solution provides a ‘turn in’ arrangement of the existing 275kV Fort Augustus to Denny circuit.

    To facilitate the turn in arrangement, the project will require the dismantling of one existing suspension tower and erection of two terminal towers of a similar scale.

    The circuits will be turned in via downleads to two termination gantries, which are of a steel lattice construction.

    The overhead line works, including diversions shall be applied for under Section 37 of the Electricity Act (1989).

  • www.ssen-transmission.co.uk/projects/kinardochy-substation

    Kinardochy Substation Information Event 05

    Proposed Kinardochy substationThe proposed substation site, located to the north of Loch Kinardochy, was chosen following a detailed site selection process, which considered environmental, technical and cost aspects of the development, in line with SHE Transmission’s internal site selection guidance.

    The potential substation site options were presented to the public at an event on 29th August 2019. The public were invited to comment on our site selection exercise and our preferred site. Further information was then presented at a public event held on 21st November 2019 based on the design information available at that time. This event was attended by around 35 people and provided an opportunity for the public to ask questions and give feedback on the proposed development.

    Following the public event in November 2019, the substation design has continued to progress and evolve. This has included:

    • The substation platform has been refined to take account of localised areas of blanket bog. For example, the equipment and plant in the south east corner of the platform has been rearranged and we have also taken this into account with the positioning and extent of the temporary construction compound, which we have also refined to a single location.

    • Previously we showed three options for the access track into the substation. Since our last consultation further work has been undertaken to assess the suitability of the routes and our preferred route has been selected (as shown in Figure 1). This has included a review of a number of factors including, substation site arrangement, local topography, extent of water crossings and crossing points under the high voltage overhead line to the east of the substation site. A key consideration however has been ensuring we can provide safe access and egress from the junction with the B846 in compliance with the design manual for roads and bridges. Although this has been refined to one access point, work is still ongoing to clarify the exact location where we will take access off the B846 and shall do so in consultation with Perth and Kinross Council.

    75E=277.163N=754.309TOWER 20

    E=277.079N=754.623TOWER 19

    E=277.017N=754.853

    TOWER 18

    E=276.885N=755.342TOWER 16

    E=276.830N=755.546TOWER 15

    E=276.837N=755.886TOWER 14

    E=276.845N=756.207TOWER 13

    E=276.853N=756.517TOWER 12

    E=276.859N=756.761TOWER 11

    E=276.864N=757.001TOWER 10

    E=277.818N=754.238TOWER 22

    E=276.964N=755.048

    TOWER 17

    E=277.293N=754.440TOWER 233

    E=277.085N=754.908TOWER 232

    E=277.001N=755.100TOWER 231

    E=276.989N=756.130TOWER 229

    E=276.984N=756.599TOWER 228

    E=276.980N=756.949TOWER 237

    E=277.909N=754.472TOWER 21

    E=277.989N=754.680TOWER 20

    E=278.054N=754.848TOWER 19

    E=278.115N=755.012TOWER 18

    E=278.050N=755.234TOWER 17

    E=277.987N=755.444TOWER 16

    E=277.910N=755.709TOWER 15

    E=277.855N=755.897TOWER 14

    E=277.785N=756.139TOWER 13

    E=277.724N=756.346TOWER 12

    E=277.651N=756.591TOWER 11

    E=277.588N=756.789TOWER 10

    E=277.526N=757.000TOWER 09

    132kV OHLERROCHTY-KILLIN [ELW]

    EXISTING400kV OHL - MELGARVE-DENNY [ELY1]275kV OHL - TUMMEL-BRACO [MB1]

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    5

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    PROPOSEDSUBSTATION

    (212m x 302m)

    CONNECTION FOR DNO SUPPLY(APPROX.)

    33kV OHL

    OHL TO KILLIN

    OHL TO MELGARVE/TUMMEL

    OHL TO GRIFFIN

    OHL TO ERROCHTY

    E=276.994N=755.708TOWER 230

    T230R

    T231ATO BE REMOVED

    132kV OHLERROCHTY-GRIFFIN [EG1/EG2]

    EXISTING400kV OHL - MELGARVE-DENNY [ELY1]275kV OHL - TUMMEL-BRACO [MB1]

    OHL TO ERROCHTY

    OHL TO DENNY/BRACO WEST

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    CONTRACTOR/LAYDOWN

    AREA

    33kV CABLE

    Ex. ACCESS TRACKTO TOWER 230

    LEGEND:-PROPOSED OF APPLICATION NOTICE BOUNDARY

    EXISTING OHL TOWER

    PROPOSED SUBSTATION

    PROPOSED LAYDOWN AREA/CDM COMPOUND

    PROPOSED ACCESS ROADEXISTING ACCESS TRACK TO TOWER 230400kV OHL TEMPORARY BYPASS (ROUTE TBC)

    30m WIDE TEMPORARY OHL CLEARANCE CORRIDOR

    400kV OHL275kV OHL132kV OHL33kV DISTRIBUTION OHL33kV DISTRIBUTION CABLEBLANKET SPHAGNUM BOG

    0m

    SCALE AT 1:5000

    375m250m125m 500m

    PRELIMINARY DESIGN ONLYNOT TO BE USED FOR

    CONSTRUCTION

    NOTES:-1. EXISTING OHL INFORMATION TAKEN FROM GIS DATA.2. PROPOSED SUBSTATION IS STILL AT DEVELOPMENT STAGE AND

    LOCATION/ORIENTATION MAY CHANGE UPON FURTHERINVESTIGATION/DESIGN.

    3. PROPOSED TOWERS 230R AND 231A SHOWN INDICATIVELY ANDLOCATION/ORIENTATION MAY CHANGE UPON FURTHERINVESTIGATION/DESIGN.

    4. SUBSTATION EXTENTS TAKEN FROM SSEN DRAWING NUMBER:LT96_KINA_1104_0041_00_00 - KINARDOCHY 275kV REACTIVECOMPENSATION SUBSTATION ELECTRICAL LAYOUT.

    5. SUBSTATION PLATFORM, CONTRACTOR COMPOUND AND ACCESS TRACKTAKEN FROM SLR DRAWING NUMBER 405.00660.00068.10.001.1 -ACCESS ROUTE AND PLATFORM LOCATION (MAY 2020).

    OS MAP NN75NE & NN75SEREPRODUCED BY PERMISSION OF ORDNANCE SURVEY ON BEHALF OF HMSO.CROWN COPYRIGHT AND DATABASE RIGHT 2016. ALL RIGHTS RESERVED.ORDNANCE SURVEY LICENCE NUMBER EL273236.

    !!!TO BE PRINTED IN COLOUR!!!

    SSE Inveralmond House, 200 Dunkeld RoadPerth, PH1 3AQ, UK www.sse.com

    Drawing Status:

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    Approved:

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    Project:

    Date Plotted: 07.05.2020

    File Name: LT96_KINA_0802_0017_00_1E_DRAFT- Kinardochy Reactive Compensation SS 275kV at Site 4 - SITE PLAN.dwg

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    LKINARDOCHY 275kV REACTIVE COMPENSATION SUBSTATION

    LT000096 TUMMEL

    KINARDOCHY 275kV REACTIVE COMPENSATION SUBSTATIONSITE PLAN

    FOR INFORMATION

    1:5000 @ A1

    OF FIRST ISSUE: 12.07.2019

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    LT96_KINA_0802_00017 00 01

    PROPOSED SUBSTATION

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    SCALE AT 1:200,000

    15km10km5km 20km

    LOCATION PLANSCALE1:200,000

    Rev:

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    00PMR

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    12.07.19

    APPROVED FOR FIRST ISSUE.

    PROPOSED FENCE SETTING OUT POINTSEASTING NORTHING LEVEL

    SOP1 277038 755811 TBC

    SOP2 277336 755811 TBC

    SOP3 277336 755677 TBC

    SOP4 277194 755603 TBC

    SOP5 277038 755603 TBC

    PROPOSED TOWER SETTING OUT POINT230R 276994 755756 TBC

    231A 276994 755660 TBC

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    APPROVED FOR ISSUE.REV'D AS PER NEW SLR PLATFORMACCESS & COMPOUND.

    Figure 1

  • www.ssen-transmission.co.uk/projects/kinardochy-substation

    06 Kinardochy Substation Information Event

    • Landscaping proposals have been pulled together, outlining the conceptual approach to managing the visual impact and biodiversity at the site.

    • Following the above refinements, small internal changes have been made, for example the rationalisation of internal access roads, clearance areas around plant and the configuration of overhead line gantries. There has been no change to any proposed plant or equipment. Our most recent layout and proposed elevations are provided in Figure 2.

    • We submitted a request for an Environmental Impact Assessment (EIA) screening opinion to Perth and Kinross Council in November 2019 to determine whether an EIA Report would be required to support our planning application. In December 2019 Perth and Kinross Council determined that an EIA Report will be required to support our application. We are in the process of agreeing the scope of this EIA with the council.

    400kV TERMINAL TOWERTBC

    DEERFENCE

    15000 5000 APPROX. 25000

    7.3m

    ELEVATION ASCALE 1:500

    EXISTING GROUND LVL TBC

    52800

    ORIENTATION OF TOWERS TBC

    CONDUCTORS & CLEARANCESTO BE DESIGNED

    CONDUCTORS & CLEARANCESTO BE DESIGNED

    400kV TERMINAL TOWER

    E=276993.776N=755756.288

    LVL=TBC

    TOWER 230R

    400kV OHLMELGARVE-DENNY [ELY1]

    TOP = YMID= RBOT = B

    400kV OHLMELGARVE-DENNY [ELY1]

    TOP = YMID= RBOT = B

    ORIENTATION OF TOWERS TBC

    275kV OHLFUTURE KINARDOCHY-BRACO WESTTOP = BMID= RBOT = Y

    275kV OHLFUTURE TUMMEL-KINARDOCHYTOP = BMID= RBOT = Y

    PHASING TBC

    AA

    4.2m HIGH SECURITY FENCE

    STATCOM BUILDING

    GIS & CONTROL BUILDING

    OHL GANTRY

    GIB

    4m HIGH SECURITY FENCE2m WIDE PERIMETER WALKWAY/PATH

    STATCOM BUILDING

    100 MVAR MSCDN

    GIB

    GIB

    GIB

    GIS & CONTROLBUILDING

    5m WIDE ROAD

    ±225 MVAR STATCOM

    cba

    T2T1

    3c

    3b

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    CA

    NbNa

    CA

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    cba

    5224

    4703

    THIS SECTION OF OHLTO BE REMOVED IF BOTH LINESARE UPGRADED TO 400kV

    1377

    6073

    940

    160223 141477

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    6000

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    OHL GANTRY

    1050

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    60007000

    1000

    0

    6000

    6000

    1314

    0

    35000

    FUTURE400/132kV

    SGT

    FUTURE400/132kV

    SGT

    GIB/AISINTERFACE

    11255 6500 6500 13000HPI PQ

    CVTHPI H

    ES

    13000 4600 4600 4600 4600 4600HPI

    11510

    FUTURE 400kV OHLGANTRY & BAY

    FUTURE 400kV OHLGANTRY & BAY

    R200

    00

    DIESELGENERATOR

    DNO SUPPLIES

    INDICATIVE FIBRE ROUTE

    INDICATIVE FIBRE ROUTE

    SA

    INDICATIVE DNO SUPPLY ROUTES

    HES

    CT PQCVT

    DVTHPI

    SA4600

    R10000

    *REQUIREMENTOF ESW TBC

    *REQUIREMENTOF ES TBC

    CC

    DD

    BB

    301700

    2117

    00

    6801

    5

    35000

    3450

    0

    39000

    100150

    22015 21245

    3024

    0

    3200

    5

    985015

    500

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    5

    1150

    0

    9245

    6000

    60001

    1500

    9210

    22245

    PLATFORM GRADING FROM EXISTINGLEVELS TO BE CONFIRMED AT

    DETAILED DESIGN STAGE.

    R

    Y

    B

    GIB/AISINTERFACE

    HPI

    HPI

    3610

    1059

    0

    1060

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    9113

    HPIHPI

    GIS/AISINTERFACE

    GIBSACVT ES

    GIS/AISINTERFACE

    GIS/AISINTERFACE

    HPI HPIHESCT SADVT

    PQCVT MSCDN PLANT

    STATCOM PLANTBUSBAR

    5000

    R

    Y

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    4600 4600 4600GIB/AIS

    INTERFACEESPQ

    CVTSA

    6500CT

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    AVR

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    9200 4600GIB/AIS

    INTERFACEESSA

    6500CT

    R

    Y

    B

    SA SCT

    E=276993.776N=755659.714

    LVL=TBC

    TOWER 231A

    FINAL LOCATION OF TOWERS TBCDEPENDENT ON MICRO-SITING

    & DESIGN CHECKS

    FINAL LOCATION OF TOWERS TBCDEPENDENT ON MICRO-SITING

    & DESIGN CHECKS

    PRELIMINARY DESIGN ONLYNOT TO BE USED FOR

    CONSTRUCTION

    0m

    SCALE AT 1:500

    37.5m25m12.5m 50m

    SUBSTATION MINIMUM ELECTRICAL CLEARANCESREQUIREMENTS TO BE IN ACCORDANCE WITH SSE SUBSTATION DESIGN SPECIFICATION DOC No. SP-NET-SST-501

    REF CLEARANCE (mm)NOMINAL SYSTEM VOLTAGE

    400kV 275kV 132kV 33kV

    E PHASE TO EARTH 2800 2100 1200 500

    Ph PHASE TO PHASE 3600 2400 1400 430

    S DESIGN CLEARANCE FOR SAFETY 5500 4800 3500 2900

    SD SAFETY DISTANCE 3100 2400 1400 800

    Ds WORKING & ACCESS CLEARANCE (VERTICAL) 5200 4500 3500 2900

    Dsh WORKING & ACCESS CLEARANCE (HORIZONTAL) 4600 3900 2900 2300

    IH INSULATION HEIGHT (PEDESTRIAN ACCESS) 2400 2400 2400 2400

    NOTES:-1. BASED ON DESIGN REQUIREMENTS TAKEN FROM KINARDOCHY

    SUBSTATION DRD LT96-DRD-G1-REV1 (TBC).2. LAYOUT SHOULD BE READ IN CONJUNCTION WITH SLD SSEN DRAWING

    NUMBER: LT96_KINA_1117_00_0004_01.3. ALL DIMENSIONS SHOWN IN MILLIMETRES (mm) U.N.O.4. PROPOSED LAYOUT FOR DEVELOPMENT PURPOSES ONLY.5. SITE DEVELOPED FOR POTENTIAL UPGRADE TO 400kV IN FUTURE

    THEREFORE 400kV ELECTRICAL CLEARANCES HAVE BEEN USED WHEREAPPROPRIATE.

    6. GIS AND CONTROL BUILDING FOOTPRINT ASSUMED SUITABLE FOR 275kVOR 400kV EQUIPMENT.

    7. IT IS ASSUMED THAT MSCDN WOULD REQUIRE TO BE COMPLETELYREDESIGNED FOR UPGRADE TO 400kV.

    8. STATCOM MAY BE ABLE TO BE RE-UTILISED IF SUBSTATION IS UPGRADEDTO 400kV BUT WILL REQUIRE AN ADAPTIVE SCT.

    9. ALL EQUIPMENT SHOWN TO BE FINALISED AND CONFIRMED BY SSENENGINEER/DESIGN TEAM AND UNTIL DONE SO ALL ASPECTS OF THESHOWN DESIGN ARE SUBJECT TO CHANGE.

    10. AIS PLANT INFORMATION TAKEN FROM STANDARD SSEN FRAMEWORKLAYOUTS.

    11. STATCOM BASED ON SIMILAR UNIT INSTALLED AT MELGARVE; RATINGSTBC - FOR EXAMPLE (±225MVAR, CONNECTED TO 275kV BUSBARRUNNING AT 20kV).

    12. ASSUMED STATCOM TRANSFORMER LOCATED ON WEST OF STATCOMCOMPOUND BUT CONNECTION FROM GIS COULD BE MODIFIED TOACCOMODATE A DIFFERENT TRANSFORMER POSITION.

    13. CURRENTLY NO INFORMATION ON MSCDN REQUIRED AT THIS SITE.INDICATIVE SPACE ENVELOPE ONLY.

    14. BUILDING OUTLINE INDICATIVE ONLY - DESIGN TO BE CONFIRMED.15. GIS BAYS 8,9,10,11 AND 12 ARE SPACE PROVISION ONLY. GIB ENTRIES TO

    BE PROVIDED.16. OVERHEAD LINE ROUTES AND POSITION OF TOWERS (TERMINAL OR

    OTHERWISE) TO BE CONFIRMED AND SUBJECT TO SEPARATE SECTION 37CONSENT.

    17. OHL REQUIRED TO BE MODELLED BY OTHERS TO ENSURE NOINFRINGEMENT OF ELECTRICAL CLEARANCES.

    18. PLATFORM LEVEL TBC AT DETAIL DESIGN STAGE AFTER GROUNDINVESTIGATION SURVEY AND CUT/FILL BALANCE OPTIMISED.

    19. ELECTRICAL PHASING TO BE CONFIRMED.20. ACCESS ROUTE TO SITE TBC.21. PROPOSED PLATFORM AREA = 58,640m² / 14.49acres.

    !!!TO BE PRINTED IN COLOUR!!!

    LEGEND:-SCT STATIC COMPENSATION TRANSFORMERSGT SUPER GRID TRANSFORMERET EARTHING TRANSFORMERNER NEUTRAL EARTHING RESISTORES EARTH SWITCHDISC DISCONNECTOR (RCP)DISCHARGE VT DISCHARGE VOLTAGE TRANSFORMERDG DIESEL GENERATORCB CIRCUIT BREAKERCSE CABLE SEALING ENDCVT CAPACITIVE VOLTAGE TRANSFORMERSA SURGE ARRESTERPI POST INSULATORGIB GAS INSULATED BUSBARH HIGH LEVEL (POST INSULATOR)

    PLANT PROPOSEDCONFIRMED FUTURE WORKS REQUIREMENTSFUTURE WORKS REQUIREMENTS TO BE CONFIRMED

    SSE Inveralmond House, 200 Dunkeld RoadPerth, PH1 3AQ, UK www.sse.com

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    Date Plotted: 07.05.2020

    File Name: LT96_KINA_1104_0041_00_00 - Kinardochy Reactive Compensation SS 275(400kV) PROPOSED SUBSTATION LAYOUT & ELEVATION AT SITE 4.dwg

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    KINARDOCHY 275kV REACTIVE COMPENSATION SUBSTATION

    LT000096 TUMMEL

    KINARDOCHY 275kV REACTIVE COMPENSATION SUBSTATIONPROPOSED SUBSTATION LAYOUT & ELEVATION AT SITE 4

    FOR INFORMATION

    1:500 @ A0

    OF FIRST ISSUE: 07.05.2020

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    LT96_KINA_1104_0041 00 00

    ASSOCIATED DRAWINGS:-LT96_KINA_1104_00_0045 SITE ELEVATIONSLT96_KINA_1104_00_0046 ELECTRICAL SECTIONS THROUGH MAIN BAYSLT96_KINA_1117_00_0004 SINGLE LINE DIAGRAM

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    APPROVED FOR FIRST ISSUE.

    Figure 2

    Proposed Kinardochy layout

  • www.ssen-transmission.co.uk/projects/kinardochy-substation

    Planning applications and overview

    Substation planning application

    A planning application will be submitted to Perth and Kinross Council which will cover the main substation works comprising the platform area, control building, associated plant and infrastructure, ancillary facilities, access track(s), laydown area and landscape works. We are aiming to submit the planning application in Autumn/Winter 2020/21. The planning application will be accompanied by an Environmental Impact Assessment (EIA). The scope of the EIA will be agreed in advance with Perth and Kinross Council.

    Summer/Autumn 2020 Request for a Scoping Opinion

    Winter 2021/2022 Expected planning consent & Section 37 granted

    Summer 2024Project completion

    Autumn/Winter 2020/21 Submission of planning and S37 applications

    Spring 2022Construction commences

    Project timeline

    Overhead line planning application

    In addition to the proposed substation there are changes required to the existing overhead lines and towers in order for them to tie into the proposed substation. These changes will be dealt with via a separate application under Section 37 of the Electricity Act 1989. This application will be submitted to the Scottish Government’s Energy Consent Unit in Autumn/Winter 2020/21.

    Public road improvements

    Separate Town and Country Planning application(s) will be submitted to Perth and Kinross Council which will cover road improvements which will be required to facilitate abnormal load movements (i.e. transformer delivery) to the site.

    Kinardochy Substation Information Event 07

  • Key considerations

    Transport, infrastructure and construction methods

    Construction of the substation will require plant and machinery, along with vehicles to transport materials and workers to the site. We anticipate that normal construction traffic will utilise the existing road infrastructure.

    However, we are undertaking investigations to confirm if improvements are required. A construction traffic management plan shall be produced to outline manage vehicle movements associated with the development.

    The largest plant item to be delivered to the substation will be a Static Compensator (STATCOM) transformer. We are undertaking investigations along various routes to identify the most feasible Abnormal Indivisible Load (AIL) route.

    Earthworks

    Building the substation platform will require significant volumes of graded stone. Our intention is to retain as much material on site as possible.

    This would mean there would be a mass balance of material on site to minimise vehicle movements in the local area, however local sources of stone will be required as part of our development works for the platform design.

    The volume of stone required and vehicle movement numbers will be established during the detailed design stage.

    www.ssen-transmission.co.uk/projects/kinardochy-substation

    08 Kinardochy Substation Information Event

  • Landscape and visual amenityA Landscape and Visual Impact Appraisal (LVIA) is currently being undertaken, which helps inform the final substation design and ensures appropriate landscape mitigation is incorporated. Mitigation will include using the existing landform features and the creation of sympathetic hard and soft landscaping.

    Since the last public event an initial landscape concept plan has been produced. A detailed landscape plan will be submitted as part of the planning application, our preliminary landscape plan is on the following page.

    The appearance of the substation within the landscape has been considered at the site selection stage, and includes how it would be seen from nearby homes, roads, and within the wider landscape. Input from this assessment has been used to develop an appropriate and specific landscape plan.

    The substation would increase the extent of electrical infrastructure within the landscape, however it is not considered to affect any designated landscape or wild land areas and any views from the surrounding summits will be at long range.

    The proposed site also offers opportunities to use the natural landform features (topography and woodlands) and any views into the proposed development from the nearest residential and amenity areas will be further minimised by appropriate use of landscaping, which may include tree planting and sympathetically designed earth bunds.

    The substation design is currently under development and the photomontage illustrated below is based on an earlier version of the design. We do not anticipate the final design will vary significantly from this representation.

    www.ssen-transmission.co.uk/projects/kinardochy-substation

    Kinardochy Substation Information Event 09

  • www.ssen-transmission.co.uk/projects/kinardochy-substation

     

    10 Kinardochy Substation Information Event

  • The site is located within an area of coniferous woodland plantation and felling some of the woodland will be required to facilitate the development. A woodland assessment will be completed as part of the detailed environmental impact assessment. Where the permanent removal of trees is required we are obliged to replace them with an equivalent area of tree planting. At present we are exploring opportunities to deliver replacement planting either on site as part of the landscape plan or by working in partnership with other organisations within the local area to deliver our obligations.

    The long term management of woodland within our land ownership will be managed by way of a woodland management plan.

    Forestry

    Environment

    There are no sites designated for habitat conservation located either on or close to the site. Loch Kinardochy is located south of the site boundary, and a number of watercourses are noted nearby.

    Sensitive peatland and blanket bog habitats have been identified on site. Through a collaborative approach between the environmental and engineering teams the substation has been redesigned to avoid or minimise the potential effects on these habitats where possible.

    An appropriate site drainage plan for both the construction and operational phases is being developed to ensure no adverse impacts on the surrounding water environment.

    A Construction Site License will be required from the Scottish Environment Protection Agency (SEPA), which includes the requirement to submit a detailed Pollution Prevention Plan (PPP) prior to commencement of construction. The PPP will demonstrate how our contractors will prevent pollution of the water environment during construction.

    Habitats/Hydrology

    Construction noise is considered to be short term and intermittent and can be controlled through the implementation of a noise management plan, which would include working hours agreed with Perth and Kinross Council.

    Noise monitoring surveys have been undertaken at noise sensitive receptors within the vicinity of the proposed development to establish a pre-development baseline. This information was used to produce a noise propagation model to ascertain if there would be any likelihood of concerns with operational noise at noise sensitive receptors as a result of this development.

    Even when using a worst-case scenario the model showed that operational noise will not be a concern and confirmed that no operational noise mitigation measures will be required.

    Noise

    www.ssen-transmission.co.uk/projects/kinardochy-substation

    Noise equipment at Tombreck

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  • How do I have my say?Your views and comments on the information provided in this booklet can be provided to the project team by contacting Louise Anderson, Community Liaison Manager

    All received feedback will be assessed and the proposed options adapted where necessary.

    Community Liaison Manager,Louise Anderson

    [email protected]

    07384 454 233

    Louise AndersonScottish and SouthernElectricity Networks,200 Dunkeld Road, Perth, PH1 3AQ

    Additional information

    Information will also be made available via the project webpage and social media channels:

    Project Website:www.ssen-transmission.co.uk/projects/kinardochy-substation

    Follow us on Twitter:@ssencommunity

    Follow us on Facebook:@ssencommunity

    www.ssen-transmission.co.uk/projects/kinardochy-substation

    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 Offices at Inveralmond House 200 Dunkeld Road Perth PH1 3AQ); and Southern Electric Power Distribution plc Registered in England & Wales No. 04094290 having its Registered Office at Number One Forbury Place, 43 Forbury Road, Reading, Berkshire, RG1 3JH which are members of the SSE Group.

    www.ssen-transmission.co.uk/projects/kinardochy-substation

    Thank you for taking the time to read this information booklet.

    Please send any comments by one of the methods below:

    Post: Louise Anderson, Scottish and Southern Electricity Networks, 200 Dunkeld Road, Perth, PH1 3AQ

    Email: [email protected]

    Online: www.ssen-transmission.co.uk/projects/kinardochy-substation

    Download: All the information from the booklet will also be available to download from the project website:

    12 Kinardochy Substation Information Event