Electricity Ten Year Statement 2020 Electricity Ten Year Statement 2020 1 Appendix Contents To demonstrate the impact of future changes on the transmission network a set of winter peak power flow C diagrams are presented in Appendix C. These show snapshots of present and future power flows along major circuit routes for the Leading the Way Scenario as well as future reinforcements based on 2019 NOA results. New transmission circuits and substations that Power flow diagrams are still to be built are shown in the future year’s diagrams. They represent one scenario and could change. The diagrams are not completely geographically precise and should not be used for detailed planning purposes. Appendix C C1 – GB Power Flow Diagram Leading the Way 2020/21..........2 C2 – GB Power Flow Diagram Leading the Way 2022/23..........3 C3 – GB Power Flow Diagram Leading the Way 2024/25..........4 C4 – GB Power Flow Diagram Leading the Way 2026/27..........5 C5 – GB Power Flow Diagram Leading the Way 2029/30..........6 A ppendi x C x C ppendi A 2 Figure C1: GB Power Flow Diagram Leading the Way 2020/21 Substation 400kV Substations 275 kV Substations 132kV Substations Circuit 400kV 275kV 220kV 132kV Dounreay Thurso South Offshore AC Cable Connagil Spittal 200 Offshore DC Cable 39 Mybster Interconnector (as of September 2020 IC register) Beatrice Cassley Stornoway Dunbeath Gordonbush Strathbrora Offshore Wind Projects Lairg Brora Round 1 Harris Loch Buidhe Shin Caithness Moray HVDC Round 2 Grudie Bridge Mossford Fyrish Alness Round 2.5 Corriemoillie Fraserburgh Luichart Orrin 98 Elgin Dorenell Macduff St. Fergus Ardmore Keith Deanie 23 Round 3 Culligran Dingwall Strichen Nairn Aigas Kilmorack Inverness Blackhillock Dunvegan Peterhead Beauly 132 514 526 Hywind Scottish Territorial Waters Sites Fasnakyle Knocknagael Dyce Persley Kintore Glen Willowdale Broadford 12 Morrison Tomatin Caennacroc Foyers Woodhill Network Information ClayhillsAberdeen Fort Augustus Boat of Quoich Garten Tarland Craigiebuckler Glendoe Redmoss Uprate / Reconductor Circuit Invergarry SCOTTISH HYDRO-ELECTRIC 847 Fetteresso Melgarve TRANSMISSION New Circuit / Network changes Kinlochleven Tummel Fiddes Kincardine 1234 Power Flow MW Fort William Errochty Power Station 612 Errochty 677 Brechen Rannoch Flow Direction 24 Clunie Tummel Bridge Tealing Dudhope Arbroath Note 1: The power flows shown in this diagram represent the transfers as Lochay Cashlie Lyndhurst Milton of Craigie per the ETYS model exchange which represents a typical winter peak power Taynuilt Killin Charleston Dalmally Finlarig Cruachan Glenagnes Dudhope flow scenario. 1025 Burghmuir 543 St. Fillans Note 2: The network is intact and no boundary constraints applied. Nant Clachan Inverarnan 575 Cupar Note 3: Geographic drawings of the NETS are to be taken as an approximate Inveraray Sloy Glenrothes location of assets. 164 Leven 150 Devonside Westfield Redhouse Note 4: The future reinforcements shown in pink are based on NOA 2019/20. Whistlefield Kincardine Stirling Dunfemline Glenniston Denny Mossmorran Note 5: Connection year for Interconnectors and offshore wind farms are Port Ann Longannet Inverkeithing Helensburgh Bonnybridge Grangemouth Dunbar Innerwick based on Interconnector Register and TEC register contracted dates. Dunoon Spango Cumbernald Telford Rd. Shrubhill Cockenzie Bainsford Gorgie Portobelllo Crystal Rig Torness Valley Strathleven Windyhill 711 Broxburn Dewar Place Erskine Lambhill Drumcross Sighthill Whitehouse Bathgate Kaimes Devol Easterhouse Currie Fallago Livingston Smeaton Moor Coatbridge Crossaig Newarthill 859 Hunterston Neilston Clydes Mill 406 NorthHunterston Strathaven Black Law Extension Dunlaw Extension Berwick East Marshall Meadows 120 Busby Black Law Hunterston Farm East 6 Whitelee Wishaw Hunterston Kilwinning Kilbride Kilmarnock Saltcoats Whitelee ExtnSouth Linnmill Town Eccles Meadowhead Carradale Kilmarnock Coalburn SP TRANSMISSION LTD Galashiels South Ayr 314 125 Clyde (North) Coylton 861 Clyde (South) Hawick New Cumnock Elvanfoot Maybole Moffat Black Hill Glenglass Auchenwynd Harestanes Hadyard Dunhill 377 Dersalloch Moyle Carsfad Ewe Hill 150 Kendoon Blackcraig To Northern Ireland Markhill Blyth Glenlee Gretna Arecleoch Kilgallioch Dumfries Ecclefechan Auchencrosh Fourstones Newton Earlstoun Stewart Tynemouth Chapelcross398 Harker South Shields 37 76 Stella West West Boldon Glenluce Tongland Offerton Hawthorn Pit Hartmoor Spennymoor Hartlepool Saltholme Tod Point Teesside Norton Robin Rigg Greystones Grangetown 2200 161 Lackenby NATIONAL GRID ELECTRICITY TRANSMISSION 173 Western Hutton HVDC Walney 391 Extension Link Ormonde Quernmore Walney I & II Heysham Osbaldwick Knaresborough West of Duddon Sands Middleton Barrow Bradford Thornton Hornsea West Kirkstall Skelton Poppleton Creyke Beck Westermost Rough Stanah Padiham Grange Monk 660 Fryston951 Saltend North Hedon Penwortham Drax Humber Gateway 255 Elland Saltend South East West Ferrybridge Eggborough 787 Rochdale To Ireland Washway Keadby Humber Refinery Farm Kearsley Whitegate Templeborough Thorpe Lister 703 Killingholme Triton Knoll Burbo West Marsh South Drive Rainhill Bank I&II Carrington Stalybridge Melton Humber Grimsby West Gwynt y Mor Kirkby Pitsmoor West Wylfa South Stocksbridge Aldwarke Bank Manchester Winco Bank Burton Birkenhead Bredbury Neepsend Thurcroft Rhyl Flats Fiddlers North Hoyle Rocksavage Daines Sheffield City Ferry Brinsworth Cottam Race Bank Dudgeon Flintshire Frodsham Jordanthorpe Bodelwyddan Bridge Norton Lees Pentir Macclesfield Inner Dowsing Capenhurst Chesterfield Lincs High Dinorwig Connah’s Quay 1252 Marnham Sheringham Shoal 1825 Staythorpe Lynn Legacy Ffestiniog Cellarhead Stoke Bardolph 750 Bicker Fen 271 Ratcliffe 1258 Willington on Soar Trawsfynydd 860 1491 1615 Rugeley Drakelow Walpole East Anglia Spalding North Scroby sands Sutton Necton Ironbridge Ryhall Norwich Main Bushbury Bridge Willenhall Shrewsbury Penn Bustleholm Enderby Hams Hall Ocker Hill 1914 Nechells Coventry 1528 Oldbury 1189 Kitwell Berkswell 401 Burwell Main Sizewell Feckenham Grendon Bishops Wood Eaton 704 Socon 1671 Patford Bramford Bridge1153 370 Greater Gabbard 152 Sundon East Claydon Pelham Braintree Wymondley Leighton Buzzard Greater Gabbard 2nd part (Galloper) Rassau 660 Walham Bulls Lodge 605 Rye House Rhigos Imperial Brimsdown Park Waltham Cross Gunfleet Sands I&II 286 Cowley Highbury 1138 To Netherlands Swansea North Watford Elstree London Array Pembroke Amersham Main Hackney BritNed Cilfynydd Culham Tottenham Redbridge Rayleigh Main Baglan Bay Mill Hill Warley Upper Boat Uskmouth Minety Didcot Willesden Margam Iron Acton Coryton Iver Kensal Green West Ham Whitson Barking Pyle Ealing Pudding St Johns City Rd Mill Tilbury Grain Wood Hurst West Thurrock Thanet Seabank Kentish Flats Wimbledon New Cross 1383 Northfleet Tremorfa Laleham Littlebrook Kingsnorth 1303 East Singlewell Kemsley Cleve Hill Aberthaw Cardiff Melksham Chessington Richborough East Bramley West Weybridge Beddington Rowdown To Belgium 954 NEMO 709 Fleet Canterbury 296 North 591 Hinkley Point Sellindge West Sellindge Bridgwater Alverdiscott 318 275 Bolney 31 Taunton Nursling 355 982 678 Dungeness Marchwood 619 Mannington Chilling Lovedean Ninfield Axminster 151 Fawley Botley Wood Exeter 181 25 Chickerell To France IFA Rampion Langage Abham Indian Queens Landulph To France IFA2 3 Figure C2: GB Power Flow Diagram Leading the Way 2022/23 Substation 400kV Substations 275 kV Substations 132kV Substations Circuit 400kV 275kV 220kV 132kV Dounreay Thurso South Offshore AC Cable Connagil Spittal 200 Offshore DC Cable 87 Mybster Interconnector (as of September 2020 IC register) Beatrice Cassley Stornoway Dunbeath Gordonbush Strathbrora Offshore Wind Projects Lairg Moray Firth Brora Round 1 Harris Loch Buidhe Shin Caithness Moray HVDC Round 2 Grudie Bridge Mossford Fyrish Alness Round 2.5 Corriemoillie Fraserburgh Luichart Orrin 146 Elgin Dorenell Macduff St. Fergus Ardmore Keith Deanie 10 Round 3 Culligran Dingwall Strichen Nairn New Deer Aigas Kilmorack Inverness Blackhillock Dunvegan Peterhead Beauly 70 396 Hywind Rothiernorman 586 Scottish Territorial Waters Sites Fasnakyle Knocknagael Dyce Persley Kintore Glen Willowdale Broadford 13 Morrison Tomatin Caennacroc Foyers Woodhill Network Information ClayhillsAberdeen Fort Augustus Boat of Quoich Garten Tarland Craigiebuckler Glendoe Redmoss Uprate / Reconductor Circuit Invergarry SCOTTISH HYDRO-ELECTRIC 1039 Fetteresso Melgarve TRANSMISSION New Circuit / Network changes Kinlochleven Tummel Fiddes Kincardine 1234 Power Flow MW Fort William Errochty Power Station 694 Errochty 829 Brechen Rannoch Flow Direction 64 Clunie Tummel Bridge Tealing Dudhope Arbroath Note 1: The power flows shown in this diagram represent the transfers as Lochay Cashlie Lyndhurst Milton of Craigie per the ETYS model exchange which represents a typical winter peak power Taynuilt Killin Charleston Dalmally Finlarig Cruachan Glenagnes Dudhope Inch Cape flow scenario. 1242 Burghmuir 941 St. Fillans Note 2: The network is intact and no boundary constraints applied. Nant Clachan Inverarnan 873 Cupar Note 3: Geographic drawings of the NETS are to be taken as an approximate Inveraray Sloy Glenrothes location of assets. 160 Leven 142 Devonside Westfield Neart na Gaolthe Redhouse Note 4: The future reinforcements shown in pink are based on NOA 2019/20. Whistlefield Kincardine Stirling Dunfemline Glenniston Denny Mossmorran Note 5: Connection year for Interconnectors and offshore wind farms are Port Ann Longannet Inverkeithing Helensburgh