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SWS Developer

Forum

3rd December 2015

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Introduction

Agenda

Overview

Next Steps

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SWS Consenting Update

Update

Next Steps

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SWS Programme Update

Update

Next Steps

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Project Progress Stage 1: Coylton-New Cumnock

• Circa £50m investment undertaken

• All works now substantially complete at Coylton, New

Cumnock and overhead line between Coylton and New

Cumnock

• Energisation planned for Q1 2016

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Construction of New Cumnock 275/132kV Substation

INSERT VIDEO OF TIME LAPSE

PHOTOGRAPHY

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Coylton-New Cumnock 275kV Overhead Line

14.4km of new line

46 towers, platforms and working areas

Circa 18km of stone roads

Circa 19km fencing

Circa 240,000 tonnes of stone

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SP-RI-142 Kilmarnock South – Coylton 275kV (XY Route) Uprating

• Uprating of Coylton to Kilmarnock Cumnock Circuits • Current rating 600MVA • New rating 1600MVA • New twin Drake ACCR Conductor • Initial conductor replacement undertaken in 2015 • Works at new Chipperlagan GIB compound to

commence early 2016 • Programme completion planned end of 2016

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Stage 2 New Cumnock – Blackhill

Stage 3 Blackhill - Glenglass

Stage 4 New Cumnock - Margree

SWS Project Progress (Stages 2 – 4)

Network Overview Diagram

• Steel tower overhead line construction contract

awarded, pre-construction site investigations and

detailed design works in progress.

• Tree cutting contract awarded, site works

commenced by SP contractor and landowners.

• Manufacture of 275 and 132kV transformers in

progress.

• Manufacture of 132kV GIS and 33kV switchgear

in progress.

• Platform construction contracts awarded for

Dunhill / Blackhill and Glenglass substations.

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SWS Project Progress (Stages 2 – 4)

• Platform construction contracts in final stages of tender process for Margree and Blackcraig

substations.

• Tender evaluation in progress substation building, cable, electrical and civil works packages for

Blackhill and Glenglass Substation.

• Tendering commenced for wood pole overhead line Margree – Blackcraig.

• Initial site clearance works target to commence Dec 15 at Blackhill substations.

• Main overhead line construction works including quarry operations to commence Jan 16.

• Main substation platform works at Blackhill and Glenglass to commence Jan 16.

• Main substation platform works at Margree and Blackcraig to commence Apr 16.

• Detailed electrical design complete for all collector substations.

• Q1 of 2017 for completion of SP-RI-114 infrastructure to Dunhill.

• Q2 of 2017 for completion of SP-RI-116 / 022 infrastructure to Blackhill and Glenglass

substations.

• Q2 of 2017 for completion of SP-R1-111 / 034 infrastructure to Margree substations.

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SWS Project (Stages 2 – 4) Key Risks

• Discharge conditions Stages 2 and 3:

• D&G good progress made - All conditions discharged

• EAC progress has remained slow 3 conditions outstanding – Target Dec 2015

• Discharge Conditions Stage 4

• D&G good progress made - All conditions discharged

• EAC progress has remained slow 3 conditions outstanding – Target Dec 2015

• Conclusion of land agreements with 3 x remaining landowners for overhead line routes

(potential impact to Stages 2, 3 and 4) agreements in principle reached.

• Secure rights to widen access road at Glenglass and Margree S/S.

• Conclude Mineral Leases for 5 x quarry locations.

• Planning permission granted for 4 x quarries in D&G area / 1 x EAC to committee in Dec 2015.

• Major construction activities through 2 x winter periods.

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SWS Project Tree Cutting Overview Map

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SWS Project Blackhill Substation Layout