Argyll and Kintyre 275Kv Strategy Consultation Booklet July 2021
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Argyll and Kintyre 275kV Strategy Consultation Booklet July 2021 Share your views with us: We are launching a virtual consultation exhibition to gain views and feedback on our proposals for our Argyll and Kintyre 275kV Strategy. This strategy includes our plans for the previously consulted upon Creag Dhubh - Dalmally 275kV Connection project, alongside two new projects; Creag Dhubh – Inveraray 275kV Overhead Line and Argyll and Kintyre 275kV Substations. Information on our proposals is available within this consultation booklet, and we also invite you to view our virtual consultation portal where we will hold live IM chat sessions at the following dates and times: • Wednesday 14th July - 10am-1pm & 5-7pm • Thursday 15th July - 10am-1pm & 5-7pm • Thursday 29th July - 10am-1pm & 5-7pm For more information, please visit: www.ssen-transmission.co.uk/projects/ argyll-and-kintyre-275kv-strategy/ 02 Argyll and Kintyre 275kV Strategy Consultation Argyll and Kintyre 275kV Strategy Consultation 03 Who We Are We are Scottish and Southern Electricity Networks, operating under licence as Scottish Hydro Electric Transmission plc (SSEN 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 (OHL), underground cables (UCG) 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 the Office of Gas and Electricity Markets (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/argyll-and-kintyre-275kv-strategy/ www.ssen-transmission.co.uk/projects/argyll-and-kintyre-275kv-strategy/ 04 Argyll and Kintyre 275kV Strategy Consultation Argyll and Kintyre 275kV Strategy Consultation 05 The Argyll and Kintyre 275kV Strategy The original transmission network in Argyll and Bute was constructed over 60 years ago and designed to transmit electricity to consumers in rural areas of low-density population. As the UK strives for Net Zero (achieving a balance between the There is therefore a requirement for us to increase our network In the interest of greenhouse gases put into the atmosphere and those taken out), capability in Argyll and Kintyre, beyond that already under current transparency, we’re SSEN Transmission has seen a significant increase in generator construction and public development, to enable the connection connection applications in Argyll and Kintyre in the last 18 of further renewable generation and to export to the wider GB Isle of presenting this package months, predominantly in renewable generation. network. We have called this group of works designed to deliver Mull 1 of works as a whole to our the required increase in network capacity our ‘Argyll and Kintyre Taynuilt stakeholders across the In terms of this renewable generation (i.e. windfarms), there are 275kV Strategy’. Glen Lochy region, to ensure all local infrastructure requirements needed to connect generators to our Transmission network. More information on the windfarms Our Argyll and Kintyre 275kV Strategy consists of 3 projects, one community members are requiring connection and upcoming consultation is listed on of which has previously been consulted on publicly since 2016, Creag Dubh aware of the full extent Page 34. and another two which are in early development and the initial of our proposals and consultation stage. They are as follows: 2 invited to comment on the development of each. Creag Dhubh - Dalmally Creag Dhubh - Inveraray 1 2 275kV Connection 275kV Overhead Line 3 An-Suidhe We recognise that as the (pages 06 - 16) (pages 17-23) proposed works span Crarae across the region, not all Stakeholders in Dalmally will already be This is a new project which would involve between 8-12 km of new familiar with this project which we have 275kV overhead line constructed between the proposed new substation of the three projects will consulted on and subsequently adapted our at Creag Dhubh, and a connection point on the Inveraray to Crossaig Craig Murrall be of direct interest to all plans in response to stakeholder feedback. overhead line. stakeholders and members of the public. The project involves establishing a new It will initially be operated at 132kV, but will be capable of 275kV operation, substation at Creag Dhubh and new switching once associated transmission network connected substations to the south station at Glen Lochy, connected by have been upgraded to 275kV capability. During this consultation approximately 13km of new overhead line. we therefore invite The existing 132kV overhead line between Inveraray and the proposed stakeholders to comment In this consultation, we are seeking your new Creag Dhubh substation will be removed. We are inviting views as to views on our Preferred Alignment for the our Preferred Route Option, within which the replacement overhead line on as many or as little overhead line. will be located. of the projects listed as Isle of Bute desired and have provided In addition, to minimise separate events, we are also using this virtual consultation as the separate feedback forms Key for ease. first formal public consultation for the Creag Argyll and Kintyre Dhubh substation Pre-Application Notice 3 Creag Dhubh - (PAN) event. The consultation on Creag 275kV Substations Crossaig Dalmally 275kV Connection Dhubh is therefore a statutory consultation Creag Dhubh - (pages 24-33) Inveraray 275kV Overhead Line event (within the Town and Country Argyll and Kintyre - Planning (Scotland) Act regulations) seeking To complete the Argyll and Kintyre 275kV Strategy, all of the connected 275kV Substations views on the proposed substation and substations require upgrade to 275kV capability. As a result we are Isle of Inveraray - Crossaig Upgrade associated works. progressing with a new project which would involve construction and Arran to 275kV (under construction) operation of four new 275kV electricity substations, south of Inveraray. Existing 275kV OHL A separate Creag Dhubh feedback form Existing 132kV OHL is available on Page 37 and we welcome We are inviting views regarding preferred Site Options identified for each Proposed 275kV OHL comments as part of this formal of these substations. engagement process. Substation To find out more about the Strategy as a whole, and sign up for updates, please visit: www.ssen-transmission.co.uk/projects/argyll-and-kintyre-275kv-strategy/ www.ssen-transmission.co.uk/projects/argyll-and-kintyre-275kv-strategy/ www.ssen-transmission.co.uk/projects/argyll-and-kintyre-275kv-strategy/ 06 Argyll and Kintyre 275kV Strategy Consultation Argyll and Kintyre 275kV Strategy Consultation 07 Creag Dhubh – Dalmally 275kV Connection 08 09 210 11 12 13 14 15 16 17 18 19 220 Legend !( Preferred Tower Locations 1. About the project Preferred Alignment 28 28 Study Area The overall aim of the project is to reinforce the existing transmission network connections in the Argyll region, to enable renewable Preferred Switching Station, Site energy projects to connect to the GB transmission network and to ensure security of supply. 6, 2020 Consultation Proposed Creag Dhubh Substation 27 27 Preferred Route, Option 3, 2020 Project elements Consultation T40 !( !( T39 !( !( !( !( T38 !( !( !( A new 275/132kV substation adjacent to the 41A 42A 26 T37 !( 43A 44A 45A 46A 47A 26 Previous consultation T36 !( existing Inveraray to Taynuilt 132kV overhead line T35 !( T34 !( T33 !( (Creag Dhubh Substation) !( We have been consulting on this project since March 2016. T32 !( T31 In recognition of feedback regarding the previous preferred !( 25 T30 25 alignment to Dalmally substation, we committed to explore !( A new 275kV overhead line between the proposed T29 alternative options to avoid crossing the