Scottish and Southern Electricity Networks

Transcription

1 Scottish and Southern Electricity Net Who we are Our licence stipulates that we must develop and maintain an efficient, co-ordinated and economical system of electricity transmission. What is the difference between Transmission and Distribution? Other SSE Businesses Electricity Transmission is the transportation of electricity from generating plants to where it is required at centres of demand. Scottish Hydro Electric Transmission Plc (SHE Transmission) Scottish Hydro Electric Power Distribution Plc (SHEPD) Southern Electric Power Distribution (SEPD) The Electricity Transmission network, or grid, transports electricity at very high voltages through overhead wires, underground cables and subsea cables. The transmission network connects large scale generation, primarily renewables, to central and southern Scotland and the rest of Great Britain. We are part of Scottish and Southern Electricity Net, operating under licence as Scottish Hydro Electric Transmission Plc for the transmission 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. of electricity in the north of Scotland. 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. Overview of Transmission projects infrastructure Completed Under construction Potential development Advanced planning Shetland Orkney Gills Bay Dounreay Spittal Mybster 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 Net to provide a physical link between the new sources of power and electricity users. Scottish and Southern Electricity Net is delivering a major programme of investment to ensure that the network is ready to meet the needs of our customers in the future. Isles Skye Mossford Beauly Lairg Fort William Dalmally Knocknagael Fort Augustus Loch Buidhe (Bonar Bridge) Denny Moray Firth Tomatin Perth Blackhillock Kintore Kincardine Peterhead Kintyre Hunterston Our responsibilities Arran As we are the only company that owns an electricity transmission network in the north of Scotland we are closely regulated by the energy regulator Ofgem. We are issued with a licence to operate and we must adhere to the terms of the licence. For this reason we operate on a very separate basis to other SSE businesses.

2 Project Overview Offshore Wind Farm Grid Connection We are the licensed owner of the electricity transmission network in the north of Scotland. Operating under license means that we have certain obligations that we must fulfil. These obligations include maintaining the existing network to ensure that the lights stay on and investing in the network to provide the infrastructure needed to allow generation developments to connect it. The transmission network gathers energy in from power stations, hydro-electric generation schemes and wind farms and carries it to areas where it is to be used. We work with the Transmission System Operator, National Grid, who is responsible for operating the transmission network across the whole of Great Britain, to make sure that power flows smoothly and reliably across our network. A request has been made to National Grid by the developer of Offshore Wind Farm to provide a connection to the transmission network. We are currently contracted to provide a connection running from the consented wind farm s onshore substation at Blackdog to the existing nearest point on the network at Dyce substation. ABERDEENSHIRE COUNCIL Kintore Dyce Offshore ABERDEEN CITY COUNCIL Location dismantling of Local Authority Boundary ( Option 3)

3 and 132 kv Steel Lattice to be re-conductored 132 kv to be dismantled Kintore to enable the Peripheral 132 kv Steel Lattice 132 kv Steel Lattice 132 kv Steel Lattice Steel Lattice line Laydown / Reproduced by Crown copy Ordn Project No: Dyce New Replacement Terminal ( 46a) Drawn by: 132 kv Steel Lattice 132 kv to be dismantled to be re-conductored 132 kv Steel Lattice 132 kv to be dismantled to be re-conductored New End Structure to replace Lattice 132 kvsteel to be dismantled to be re-conductored New End Structure to replace to 132 kv to be dismantled New End Structure replace 132 kv SteelSteel LatticeLattice to be re-conductored steel lattice tower to enable the Peripheral 132 kv Steel Lattice to be re-conductored 0 to to kv be dismantled be dismantled Crown copyright and database right 2015 all rights Laydown / Storage Area Project No: LT175 / 176 / 177 (SHEET 3 OF 3) LR /2.1.3 (Rev B) /2.1.2 (Rev B) Laydown / DrawnDyce by: LR Dyce Offshore LR /2.1.3 (Rev B) /2.1.3 (Rev B) Dyce New Replacement Terminal ( 46a) 132 kv Steel Lattice New Replacement Terminal to ( be re-conductored 46a) bstation w Replacement Terminal 132 kv to be dismantled ( 46a) End Structure to replace w Replacement TerminalNew steel lattice tower ( 46a) (SHEET 3 OF 3) Drawn by: Dyce Drawn by: OrdnanceNew Survey Licence number End EL Structure to replace Laydown/ Offshore Wind Farm Grid Connection Offshore Wind Farm Grid Connection (SHEET 3 OF 3) 132 kv to be removed StoneyhilltoWood enable the Peripheral Crown copyright and database right 2015 all rights Laydown / Crown copyright and database right 2015 all rights Ordnance Survey Licence number EL Laydown / Reproduced Storage Area by permission of Ordnance Survey on behalf of HMSO. Crown copyright and database right 2015 all rights Project No: LT175 / 176 / 177 Offshore Wind Farm Grid Connection 132 kv Laydown / Reproduced by permission of Ordnance Survey on behalf of HMSO. to enable the Peripheral Offshore Wind Farm Grid Connection Section of overhead already to enable theline THE PROPOSED DEVELOPMENT Peripheral to enable the 2 OF 3) Laydown / (SHEET Peripheral to enable the Peripheral Laydown / to enable the Peripheral 132 kv to be dismantled to enable the Peripheral 132 kv Steel Lattice to be re-conductored 132 kv Steel Lattice 132 kv to be dismantled to be re-conductored 132 kv Steel Lattice to be re-conductored ood 132 kv Steel Lattice to be re-conductored 132 kv 132 be dismantled kvto steel lattice tower132 kv to be removed New End Structure to replace to enable the 132 kv Peripheral 132 kv to enable the 132 kv to be removed Peripheral to be removed (Option 3) 132 kv Steel Lattice Crown copyright and database right 2015 all rights 132 kv New to be removed End Structure to replace No: LT175 / 176 / 177 Crown copyright and database right 2015 all rights Project Offshore Wind Farm Grid Connection New End Structur e to replace New End Structure Stoneyhill Wood Reproduced by permission of Ordnance Survey on behalf of HMSO. Laydown / Crown copyright and database right 2015 all rights Project No: LT175 / 176 / 177 to replace steel lattice tower (SHEET 1 OF 3) Stoneyhill Wood/ Offshore Wind Farm Grid Connection Laydown Storage Area Crown copyright and database all rights Projectright No:2015 LT175 / 176 / 177 Stoneyhill Wood Offshore Wind Farm Grid Connection Crown No: copyright and/database right 2015 all rights Project LT / 177 PROPOSED DEVELOPMENT Ordnance Survey Licence EL numberthe Offshore Wind Farm Grid Connection /2.1.1 (Rev B) Crown copyright and database right 2015 all rights Offshore Wind Farm Grid Connection (SHEET 2 OF 3) Crown copyright and database right 2015 all rights /2.1.2 (Rev B) Offshore Wind Farm Grid Connection Date: 26/10/2016 Drawn by: LR / 176 / 177 Crown copyright and database right 2015 all rights Project No: LT /2.1.2 (Rev B) Offshore Wind Farm Grid Connection

4 Overview of Works work for the project is due to commence in early 2017 with construction completion planned for Spring January 2017 Site mobilisation due to begin for both the cable and overhead line February 2017 Site mobilisation to commence for Dyce March 2017 start on both cable and overhead line The connection will involve: The installation of 7.6km of underground cable from Blackdog to 54 on the Dyce Stoneyhill overhead tower line, including a Horizontal Directional Drill (HDD) under the A90. Re-conductor 2km of the existing Dyce Stoneyhill overhead line. This will involve: Removal of two towers of the overhead line at Stoneyhill. Replacement of 54 with a new tower containing a End platform. Re-conductoring approximately 12km of the existing Dyce Kintore tower line between Dyce and Kintore substations. Reinforcement work within Dyce substation. The are being pursued under Permitted Development rights, meaning there are no planning consents required for the project. This will be confirmed with the relevant planning authorities prior to any work starting. The connection date we are working towards is 21 December The wind farm developer is constructing the new substation at Blackdog with associated cabling out to the wind farm. April 2017 start on Dyce April 2018 completion

5 Environmental Considerations Three route options were considered for the cable between Blackdog and Stoneyhill, with the preferred alignment shown on Board three. An Environmental Appraisal has been carried out along the preferred cable route and overhead lines between Stoneyhill and Kintore which focussed on: Ecology Landscape and Visual Archaeology Soils and Hydrology The purpose of these studies is to identify potential habitats for protected species, designated habitats and landscape areas and archaeological features. This information has been used to help refine the cable route and inform the Contractors of any constraints requiring mitigation. A small amount of commercial plantation tree felling will be required near Blackdog substation, but this will be kept to a minimum by routeing the cable along an existing firebreak. Pre-construction surveys for protected species will be undertaken prior to work starting in any area to ensure no breeding or rest sites are disturbed or destroyed. The Environmental Appraisal recommends a number of broad mitigation measures, which together with SHE Transmission s own protection plans, should ensure that the project does not pose any significant impacts or unacceptable levels of disturbance to any protected species. There are a number of scheduled monuments and listed buildings within 2.5km of the proposed, however none of them will be impacted by construction or adverse views following completion. There is also potential for unrecorded archaeological sites to be present along the cable route and care will be taken during installation to avoid disturbance or damage.

6 Feedback Thank you for taking the time to find out about our plans to connect the Community Liaison Manager Lesley Dow Offshore wind farm. The project is in the advanced development stage however we openly welcome comments and feedback to help us progress the project. If you wish to provide any feedback or comments, please either complete a feedback form or discuss your queries direct with a member of the project team. Information can also be posted out to you by our Community Liaison Manager upon request. can be submitted as follows: At the exhibition today: Complete a Comment Form and provide to a member of the project team. Online: Complete a Comment Form online by visiting the project webpage: By post: Complete a Form and post it to our Liaison Manager (details below). By Complete a Form and it to our Liaison Manager (details below). Download forms and all the information from today s event will also be available to download from the project website at: Request Information can also be posted out to you by our liaison manager upon request. Please make your comments as specific as possible in order to help us consider them in relation to our proposals. Lesley.dow@sse.com Lesley Dow SHE Transmission Inveralmond House 200 Dunkeld Road Perth PH1 3AQ Follow us Why not follow Scottish and Southern Energy Net on social media and keep up-to-date with all latest news and events? Find us on Facebook: SSEN Community Follow us on Bay Wind Farm Your Thank you for taking the time to attend this consultation event. In order to record your views and improve the effectiveness of our consultation, please complete this short feedback form. Please complete in BLOCK CAPITALS. (Please tick one box per question only) Q1 Has the requirement for the project been clearly explained? Yes No Unsure Q2 Have we explained our plans in a clear way? Yes No Unsure Q3 Do you have any comments on the plans presented by Scottish Hydro Electric Transmission? Q4 Do you have any further information that we need to be aware of? Q5 Can we provide any additional information at this stage? Please write in any further comments you would like to make about the engagement process as a whole. Full name Address Postcode Telephone If you would like to be kept informed of progress on the project please tick this box. 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 hand your completed form in at the event or alternatively by one of the methods below: Post: Lesley Dow, SHE Transmission plc, Inveralmond House, 200 Dunkeld Road, Perth PH1 3AQ Lesley.dow@sse.com The feedback form and all information provided at the event can also be downloaded from the dedicated website: Any information given on the feedback form can be used and published anonymously as part of Scottish and Southern Electricity Net consultation report. By completing this feedback form you consent to Scottish and Southern Electricity Net using feedback for this purpose.