electricity ten year statement 2016 1 appendix 2016 appendix c.pdf · electricity ten year...
TRANSCRIPT
AppendixC
Ap
pe
nd
ix C
Contents
Power flow diagrams
C1 – GB Power Flow Diagram Gone Green 2016/17...............23
C3 – GB Power Flow Diagram Gone Green 2020/21 4C4 – GB Power Flow Diagram Gone Green 2022/23 5
Appendix C
Appendix
C
To demonstrate the impact of future changes on thetransmission network a set of winter peak power flow diagrams are presented in Appendix C. These showsnapshots of present and future power flows along major circuit routes for the Gone Green Scenario. The
Electricity Ten Year Statement 2016 1Electricity Ten Year Statement 2016
expected changes in the network are based on theprevious year’s development decisions.
...............
...............C5 – GB Power Flow Diagram Gone Green 2025/26 6...............
C2 – GB Power Flow Diagram Gone Green 2018/19...............
To France
To Netherlands
To Ireland
To Northern Ireland
Robin Rigg
Barrow
Ormonde
Rhyl Flats
Burbo Bank
Kentish Flats
Gunfleet Sands I&II
London Array
Gwynt y Mor
Thanet
Walney I & II
Greater Gabbard
West of Duddon Sands
Westermost Rough
Humber Gateway
Sheringham Shoal
North Hoyle
Lynn
Inner Dowsing
Lincs
Teesside
Figure C1: GB Power Flow Diagram Gone Green 2016/17
2
Birkenhead
Atlantic Array
New Cumnock
Connah’s Quay
Middleton
Coalburn
Moffat
Fallago
Galashiels
Hawick
Harestanes
Tummel Bridge
Errochty
Tummel
Denny
Crossaig
Corriemoillie
Cashlie
Sutton Bridge
Rocksavage
Harris
Power Flow MWFlow Direction
400kV Substations275 kV Substations132kV SubstationsOffshore AC PlatformOffshore DC Platform400kV Circuits275kV Circuits220kV Circuits132kV CircuitsOffshore AC CableOffshore DC CableInterconnectors
Major Generating Sites Including Pumped Storage
Connected at 400kVConnected at 275 kVHydro Generation
Reconductor Circuit
New Circuit
1234
Round 1
Round 2
Scottish Territorial Waters Sites
Round 3
Offshore Wind Projects (as of 2016 - OCT - TEC)
Connah’s Quay
Middleton
Linnmill
Moffat
Fallago
GalashielsGalashiels
Hawick
Harestanes
Tummel Bridge
Errochty
Tummel
Denny
Crossaig
Corriemoillie
Cashlie
Sutton Bridge
New Cumnock
Black Law Extension
Hadyard
Kilgallioch
CumbernaldBainsford
Auchenwynd
Penn
PyleIver
Drax
Fleet
Abham
GrainHurst
Wylfa
Blyth
Sundon
Legacy
Stanah
Pentir
Kirkby
Hutton
Walham
Pelham
Harker
Elland
Keadby
MargamWarley
Norton
Cowley
Bolney
Rassau
Minety
Exeter
Fawley
Didcot
Cottam
Seabank
Taunton
Kitwell
Kemsley
Whitson
Laleham
Walpole
Grendon
Padiham
Rugeley
Rowdown
Norwich Main
Heysham
Enderby
NinfieldLovedean
Bramford
Bredbury
Nursling
Drakelow
Pitsmoor
Neepsend
Aldwarke
Sizewell
Melksham
Thornton
Offerton
Aberthaw
Rochdale
Hartmoor
Pembroke
Landulph
Rye House
Sellindge
Tynemouth
Wymondley
Feckenham
Poppleton
Cilfynydd
Axminster
Bridgwater
Bicker Fen
Staythorpe
Mannington
Ffestiniog
Spennymoor
Penwortham
Osbaldwick
Shrewsbury
Willington
Chickerell
Cellarhead
EatonSocon
Creyke Beck
Trawsfynydd
Grimsby West
Chesterfield
Burwell Main
Alverdiscott
Langage
Indian Queens
Hinkley Point
Dinorwig
Rainhill
Capenhurst Frodsham
Washway Farm
South Manchester
Carrington
DainesFiddlers Ferry
Macclesfield
Kearsley Whitegate
Stalybridge
Dungeness
Canterbury North
Braintree
Waltham Cross
Swansea North
Baglan Bay
Cardiff East
Tremorfa
Alpha Steel
Upper Boat Uskmouth
Imperial Park
Iron Acton
Marchwood
Botley Wood
Bramley
Culham
Quernmore
Coventry
Nechells
Willenhall Bustleholm
Hams Hall
BerkswellOldbury
Bishops Wood
Ironbridge
Ocker Hill
Spalding North
Patford Bridge
FerrybridgeEggborough
Thorpe Marsh
Thurcroft
Brinsworth
HighMarnham
Templeborough
West Melton
Norton LeesJordanthorpe
Sheffield City
Winco BankStocksbridge West
Burton
SaltendNorth
Saltend South
South Humber Bank
Bradford West Kirkstall Skelton
Grange MonkFryston
Killingholme
Humber Refinery
East Claydon
Rayleigh Main
Coryton
SinglewellKingsnorth
Littlebrook
WimbledonBeddington
Chessington
West Weybridge
St Johns Wood
EalingWillesden
Watford Elstree
Tottenham Redbridge
Barking
Leighton Buzzard
Amersham Main
TilburyCity Rd
NewCross
Hackney
Brimsdown
South Shields
West Boldon
Hawthorne Pit
HartlepoolTod Point
GrangetownGreystones
Lackenby
Stella West
Fourstones
Sloy
Shin
Orrin
Aigas
Quoich
Lochay
Foyers
Rannoch
Glenlee
Clachan
Cassley
Tongland
Errochty
Fasnakyle
Invergarry
Brora
Elgin
Keith
Eccles
Beauly
Thurso
Tealing
Torness
Kintore
Mybster
Dunbeath
Arbroath
Port Ann
Dalmally
Dounreay
LongannetCockenzie
Inveraray
Carradale
Peterhead
Hunterston
St. Fergus
Auchencrosh
Blackhillock
Fort Augustus
Kilmarnock South
Alness
Nairn
MossfordGrudie Bridge
Macduff
Dingwall
Inverness
Lairg
Luichart
DeanieCulligran
Kilmorack
Boat ofGarten
Broadford
Dunvegan
Stornoway
Harris
TaynuiltCruachan
Whistlefield
Nant
Fort William
KillinFinlarig
Errochty Power Station
Clunie
Fraserburgh
Dyce
Persley
Willowdale
Clayhills
Redmoss
Fiddes
TarlandCraigiebuckler
WoodhillGlenMorrison
Caennacroc
Dudhope
Milton of Craigie
Glenagnes
Lyndhurst
Charleston
Burghmuir
Glenrothes
Westfield
Dunoon
AyrCoylton
Maybole
Coalburn
Elvanfoot
Carsfad
Earlstoun
Chapelcross
GretnaDumfries Ecclefechan
Berwick
SCOTTISH HYDRO-ELECTRICTRANSMISSION
St. Fillans
Dunbar
Inverkeithing
Dudhope
NewtonStewart
Glenluce
SP TRANSMISSION LTD
Saltcoats
Meadowhead
Kilwinning
Kaimes
PortobellloShrubhill
MossmorranGlenniston
Redhouse
Leven
Cupar
Currie
GorgieTelford Rd.
Livingston
Bathgate
Grangemouth
DunfemlineKincardine
Devonside
Stirling
Bonnybridge
Easterhouse
Newarthill
Wishaw
Black LawStrathavenClydes Mill
EastKilbride South
Busby
WhiteleeKilmarnock Town
Neilston
Erskine
Devol Moor
Helensburgh
StrathlevenSpango Valley
Lambhill
Broxburn
West Ham
NorthfleetEast
West Thurrock
Windyhill
Stoke Bardolph
Bushbury
Bodelwyddan
Knaresborough
Saltholme
Hedon
Clyde (South)
Clyde (North)
Kendoon
Marshall Meadows
Whitelee Extn
SmeatonCoatbridge
Inverarnan
Whitehouse
Knocknagael
Crystal Rig
Dunlaw Extension
To Ireland
Ratcliffeon Soar
Cleve Hill
Mill Hill
Markhill
Arecleoch
Glendoe
Rocksavage
Ardmore
Strichen
North
Hunterston
HunterstonEast
Necton
Kinlochleven
Deeside
68
147
195
531
216
26
654
1238
1596680
616190
16561090
555
97
544
1061
1003
1680
17471774
1864
1954
652
87
2198
1454
1644
2123
2023
1634
632
821
750
330
1035
1163188
689
873
1472
3991858
53
73
39
1441
1435
195
307
30
660590
840
75
420 470 510
100
310
1056
1820
100
600
490
300180
812
1252
118
115
687
251
1050
To France
To Netherlands
To Ireland
To Northern Ireland
Rampion
Robin Rigg
Barrow
Ormonde
Rhyl Flats
Burbo Bank
Kentish Flats
Gunfleet Sands I&II
London Array
Gwynt y Mor
Thanet
Walney I & II
Greater Gabbard 500MW
West of Duddon Sands
Westermost Rough
Humber Gateway
Sheringham Shoal
Greater Gabbard 2nd part
North Hoyle
Lynn
Inner Dowsing
Lincs
Race Bank Dudgeon
Teesside
Figure C2: GB Power Flow Diagram Gone Green 2018/19
3
Birkenhead
New Cumnock
Connah’s Quay
Middleton
Coalburn
Moffat
Fallago
Galashiels
Hawick
Harestanes
Tummel Bridge
Errochty
Tummel
Denny
Crossaig
Corriemoillie
Cashlie
Sutton Bridge
Rocksavage
Harris
SellindgeWest
Branxton
Power Flow MWFlow Direction
400kV Substations275 kV Substations132kV SubstationsOffshore AC PlatformOffshore DC Platform400kV Circuits275kV Circuits220kV Circuits132kV CircuitsOffshore AC CableOffshore DC CableInterconnectors
Major Generating Sites Including Pumped Storage
Connected at 400kVConnected at 275 kVHydro Generation
Reconductor Circuit
New Circuit
1234
Round 1
Round 2
Scottish Territorial Waters Sites
Round 3
Offshore Wind Projects (as of 2016 - OCT - TEC)
Connah’s Quay
Middleton
Linnmill
Moffat
Fallago
GalashielsGalashiels
Hawick
Harestanes
Tummel Bridge
Errochty
Tummel
Denny
Crossaig
Corriemoillie
Cashlie
Sutton Bridge
New Cumnock
Black Law Extension
Hadyard
Kilgallioch
CumbernaldBainsford
Auchenwynd
Penn
PyleIver
Drax
Fleet
Abham
GrainHurst
Wylfa
Blyth
Sundon
Legacy
Stanah
Pentir
Kirkby
Hutton
Walham
Pelham
Harker
Elland
Keadby
MargamWarley
Norton
Cowley
Bolney
Rassau
Minety
Exeter
Fawley
Didcot
Cottam
Seabank
Taunton
Kitwell
Kemsley
Whitson
Laleham
Walpole
Grendon
Padiham
Rugeley
Rowdown
Norwich Main
Heysham
Enderby
NinfieldLovedean
Bramford
Bredbury
Nursling
Drakelow
Pitsmoor
Neepsend
Aldwarke
Sizewell
Melksham
Thornton
Offerton
Aberthaw
Rochdale
Hartmoor
Pembroke
Landulph
Rye House
Sellindge
Tynemouth
Wymondley
Feckenham
Poppleton
Cilfynydd
Axminster
Bridgwater
Bicker Fen
Staythorpe
Mannington
Ffestiniog
Spennymoor
Penwortham
Osbaldwick
Shrewsbury
Willington
Chickerell
Cellarhead
EatonSocon
Creyke Beck
Trawsfynydd
Grimsby West
Chesterfield
Burwell Main
Alverdiscott
Langage
Indian Queens
Hinkley Point
Dinorwig
Rainhill
Capenhurst Frodsham
Washway Farm
South Manchester
Carrington
DainesFiddlers Ferry
Macclesfield
Kearsley Whitegate
Stalybridge
Dungeness
Canterbury North
Braintree
Waltham Cross
Swansea North
Baglan Bay
Cardiff East
Tremorfa
Alpha Steel
Upper Boat Uskmouth
Imperial Park
Iron Acton
Marchwood
Botley Wood
Bramley
Culham
Quernmore
Coventry
Nechells
Willenhall Bustleholm
Hams Hall
BerkswellOldbury
Bishops Wood
Ironbridge
Ocker Hill
Spalding North
Patford Bridge
FerrybridgeEggborough
Thorpe Marsh
Thurcroft
Brinsworth
HighMarnham
Templeborough
West Melton
Norton LeesJordanthorpe
Sheffield City
Winco BankStocksbridge West
Burton
SaltendNorth
Saltend South
South Humber Bank
Bradford West Kirkstall Skelton
Grange MonkFryston
Killingholme
Humber Refinery
East Claydon
Rayleigh Main
Coryton
SinglewellKingsnorth
Littlebrook
WimbledonBeddington
Chessington
West Weybridge
St Johns Wood
EalingWillesden
Watford Elstree
Tottenham Redbridge
Barking
Leighton Buzzard
Amersham Main
TilburyCity Rd
NewCross
Hackney
Brimsdown
South Shields
West Boldon
Hawthorne Pit
HartlepoolTod Point
GrangetownGreystones
Lackenby
Stella West
Fourstones
Sloy
Shin
Orrin
Aigas
Quoich
Lochay
Foyers
Rannoch
Glenlee
Clachan
Cassley
Tongland
Errochty
Fasnakyle
Invergarry
Brora
Elgin
Keith
Eccles
Beauly
Thurso
Tealing
Torness
Kintore
Mybster
Dunbeath
Arbroath
Port Ann
Dalmally
Dounreay
LongannetCockenzie
Inveraray
Carradale
Peterhead
Hunterston
St. Fergus
Auchencrosh
Blackhillock
Fort Augustus
Kilmarnock South
Alness
Nairn
MossfordGrudie Bridge
Macduff
Dingwall
Inverness
Lairg
Luichart
DeanieCulligran
Kilmorack
Boat ofGarten
Broadford
Dunvegan
Stornoway
Harris
TaynuiltCruachan
Whistlefield
Nant
Fort William
KillinFinlarig
Errochty Power Station
Clunie
Fraserburgh
Dyce
Persley
Willowdale
Clayhills
Redmoss
Fiddes
TarlandCraigiebuckler
WoodhillGlenMorrison
Caennacroc
Dudhope
Milton of Craigie
Glenagnes
Lyndhurst
Charleston
Burghmuir
Glenrothes
Westfield
Dunoon
AyrCoylton
Maybole
Coalburn
Elvanfoot
Carsfad
Earlstoun
Chapelcross
GretnaDumfries Ecclefechan
Berwick
SCOTTISH HYDRO-ELECTRICTRANSMISSION
St. Fillans
Dunbar
Inverkeithing
Dudhope
NewtonStewart
Glenluce
SP TRANSMISSION LTD
Saltcoats
Meadowhead
Kilwinning
Kaimes
PortobellloShrubhill
MossmorranGlenniston
Redhouse
Leven
Cupar
Currie
GorgieTelford Rd.
Livingston
Bathgate
Grangemouth
DunfemlineKincardine
Devonside
Stirling
Bonnybridge
Easterhouse
Newarthill
Wishaw
Black LawStrathavenClydes Mill
EastKilbride South
Busby
WhiteleeKilmarnock Town
Neilston
Erskine
Devol Moor
Helensburgh
StrathlevenSpango Valley
Lambhill
Broxburn
West Ham
NorthfleetEast
West Thurrock
Windyhill
Stoke Bardolph
Bushbury
Bodelwyddan
Knaresborough
Saltholme
Hedon
Clyde (South)
Clyde (North)
Kendoon
Marshall Meadows
Whitelee Extn
SmeatonCoatbridge
Inverarnan
Whitehouse
Knocknagael
Crystal Rig
Dunlaw Extension
To Ireland
Ratcliffeon Soar
Cleve Hill
Mill Hill
Markhill
Arecleoch
Glendoe
Rocksavage
Ardmore
Strichen
North
Hunterston
HunterstonEast
Necton
Kinlochleven
Loch Buidhe
Ryhall
SellindgeWest
Spittal
FlintshireBridge
61
147
180
488
182
96
770
1062
1412496
1197532
120
1543945
471
104
708
979
1366
16391593
1967
2046
541
209
1680
940
1122
2096
2529
2162
851
1988
917
441
734
1043151
622
758
710
205925
397
69
25
1091
514
222
90
25
530470
960
60
700 180
80
330
1078
1327
490
460
420
300180
200
580
964
750
2260
80
162
1160
To France
To Netherlands
To Ireland
To Northern Ireland
To Norway
To France
Hornsea
Rampion
Robin Rigg
Barrow
Ormonde
Rhyl Flats
Burbo Bank
Kentish Flats
Gunfleet Sands I&II
London Array
Gwynt y Mor
Thanet
Walney I & II
Greater Gabbard 500MW
West of Duddon Sands
Westermost Rough
Humber Gateway
Sheringham Shoal
Greater Gabbard 2nd part
North Hoyle
Lynn
Inner Dowsing
Lincs
Race Bank Dudgeon
Teesside
Figure C3: GB Power Flow Diagram Gone Green 2020/21
Beatrice
Neart na Gaolthe
Birkenhead
East Anglia
Scroby Sands
New Cumnock
Connah’s Quay
Middleton
Coalburn
Moffat
Fallago
Galashiels
Hawick
Harestanes
Tummel Bridge
Errochty
Tummel
Denny
Crossaig
Corriemoillie
Cashlie
Sutton Bridge
Rocksavage
Harris
Power Flow MWFlow Direction
400kV Substations275 kV Substations132kV SubstationsOffshore AC PlatformOffshore DC Platform400kV Circuits275kV Circuits220kV Circuits132kV CircuitsOffshore AC CableOffshore DC CableInterconnectors
Major Generating Sites Including Pumped Storage
Connected at 400kVConnected at 275 kVHydro Generation
Reconductor Circuit
New Circuit
1234
Round 1
Round 2
Scottish Territorial Waters Sites
Round 3
Offshore Wind Projects (as of 2016 - OCT - TEC)
Connah’s Quay
Middleton
Linnmill
Moffat
Fallago
GalashielsGalashiels
Hawick
Harestanes
Tummel Bridge
Errochty
Tummel
Denny
Crossaig
Corriemoillie
Cashlie
Sutton Bridge
New Cumnock
Black Law Extension
Hadyard
Kilgallioch
CumbernaldBainsford
Auchenwynd
Penn
PyleIver
Drax
Fleet
Abham
GrainHurst
Wylfa
Blyth
Sundon
Legacy
Stanah
Pentir
Kirkby
Hutton
Walham
Pelham
Harker
Elland
Keadby
MargamWarley
Norton
Cowley
Bolney
Rassau
Minety
Exeter
Fawley
Didcot
Cottam
Seabank
Taunton
Kitwell
Kemsley
Whitson
Laleham
Walpole
Grendon
Padiham
Rugeley
Rowdown
Norwich Main
Heysham
Enderby
NinfieldLovedean
Bramford
Bredbury
Nursling
Drakelow
Pitsmoor
Neepsend
Aldwarke
Sizewell
Melksham
Thornton
Offerton
Aberthaw
Rochdale
Hartmoor
Pembroke
Landulph
Rye House
Sellindge
Tynemouth
Wymondley
Feckenham
Poppleton
Cilfynydd
Axminster
Bridgwater
Bicker Fen
Staythorpe
Mannington
Ffestiniog
Spennymoor
Penwortham
Osbaldwick
Shrewsbury
Willington
Chickerell
Cellarhead
EatonSocon
Creyke Beck
Trawsfynydd
Grimsby West
Chesterfield
Burwell Main
Alverdiscott
Langage
Indian Queens
Hinkley Point
Dinorwig
Rainhill
Capenhurst Frodsham
Washway Farm
South Manchester
Carrington
DainesFiddlers Ferry
Macclesfield
Kearsley Whitegate
Stalybridge
Dungeness
Canterbury North
Braintree
Waltham Cross
Swansea North
Baglan Bay
Cardiff East
Tremorfa
Alpha Steel
Upper Boat Uskmouth
Imperial Park
Iron Acton
Marchwood
Botley Wood
Bramley
Culham
Quernmore
Coventry
Nechells
Willenhall Bustleholm
Hams Hall
BerkswellOldbury
Bishops Wood
Ironbridge
Ocker Hill
Spalding North
Patford Bridge
FerrybridgeEggborough
Thorpe Marsh
Thurcroft
Brinsworth
HighMarnham
Templeborough
West Melton
Norton LeesJordanthorpe
Sheffield City
Winco BankStocksbridge West
Burton
SaltendNorth
Saltend South
South Humber Bank
Bradford West Kirkstall Skelton
Grange MonkFryston
Killingholme
Humber Refinery
East Claydon
Rayleigh Main
Coryton
SinglewellKingsnorth
Littlebrook
WimbledonBeddington
Chessington
West Weybridge
St Johns Wood
EalingWillesden
Watford Elstree
Tottenham Redbridge
Barking
Leighton Buzzard
Amersham Main
TilburyCity Rd
NewCross
Hackney
Brimsdown
South Shields
West Boldon
Hawthorne Pit
HartlepoolTod Point
GrangetownGreystones
Lackenby
Stella West
Fourstones
Sloy
Shin
Orrin
Aigas
Quoich
Lochay
Foyers
Rannoch
Glenlee
Clachan
Cassley
Tongland
Errochty
Fasnakyle
Invergarry
Brora
Elgin
Keith
Eccles
Beauly
Thurso
Tealing
Torness
Kintore
Mybster
Dunbeath
Arbroath
Port Ann
Dalmally
Dounreay
LongannetCockenzie
Inveraray
Carradale
Peterhead
Hunterston
St. Fergus
Auchencrosh
Blackhillock
Fort Augustus
Kilmarnock South
Alness
Nairn
MossfordGrudie Bridge
Macduff
Dingwall
Inverness
Lairg
Luichart
DeanieCulligran
Kilmorack
Boat ofGarten
Broadford
Dunvegan
Stornoway
Harris
TaynuiltCruachan
Whistlefield
Nant
Fort William
KillinFinlarig
Errochty Power Station
Clunie
Fraserburgh
Dyce
Persley
Willowdale
Clayhills
Redmoss
Fiddes
TarlandCraigiebuckler
WoodhillGlenMorrison
Caennacroc
Dudhope
Milton of Craigie
Glenagnes
Lyndhurst
Charleston
Burghmuir
Glenrothes
Westfield
Dunoon
AyrCoylton
Maybole
Coalburn
Elvanfoot
Carsfad
Earlstoun
Chapelcross
GretnaDumfries Ecclefechan
Berwick
SCOTTISH HYDRO-ELECTRICTRANSMISSION
St. Fillans
Dunbar
Inverkeithing
Dudhope
NewtonStewart
Glenluce
SP TRANSMISSION LTD
Saltcoats
Meadowhead
Kilwinning
Kaimes
PortobellloShrubhill
MossmorranGlenniston
Redhouse
Leven
Cupar
Currie
GorgieTelford Rd.
Livingston
Bathgate
Grangemouth
DunfemlineKincardine
Devonside
Stirling
Bonnybridge
Easterhouse
Newarthill
Wishaw
Black LawStrathavenClydes Mill
EastKilbride South
Busby
WhiteleeKilmarnock Town
Neilston
Erskine
Devol Moor
Helensburgh
StrathlevenSpango Valley
Lambhill
Broxburn
West Ham
NorthfleetEast
West Thurrock
Windyhill
Stoke Bardolph
Bushbury
Bodelwyddan
Knaresborough
Saltholme
Hedon
Clyde (South)
Clyde (North)
Kendoon
Marshall Meadows
Whitelee Extn
SmeatonCoatbridge
Inverarnan
Whitehouse
Knocknagael
Crystal Rig
Dunlaw Extension
To Ireland
Ratcliffeon Soar
Cleve Hill
Mill Hill
Markhill
Arecleoch
Glendoe
Rocksavage
Ardmore
Strichen
North
Hunterston
HunterstonEast
Necton
Kinlochleven
Loch Buidhe
Ryhall
300
Thurso
FlintshireBridge
300Spittal
SellindgeWest
15
202
63
242
87
1086
912
1212
1553637
2144484
238
470918
685
242
192
725
456
1023
16371234
1765
1832
211
739
1167
468
641
2310
2494
1927
577
1219
1214
506
860
1858984
1398
1639
1496
481578
366
68
31
1267
1172
410
178
40
743640
1000
60
320 870 250
50
85
753
1614
200
640
600
297170
716
430
2260
4
1625
174
49
1374
Hornsea
Dogger Bank
Firth of Forth
Moray Firth
Rampion
To France
To Netherlands
To Ireland
To Northern Ireland
To France
To France
To Denmark
To Norway
Robin Rigg
Barrow
Ormonde
Rhyl Flats
Burbo Bank
Kentish Flats
Gunfleet Sands I&II
London Array
Gwynt y Mor
Thanet
Walney I & II
Greater Gabbard 500MW
West of Duddon Sands
Westermost Rough
Humber Gateway
Sheringham Shoal
Greater Gabbard 2nd part
North Hoyle
Lynn
Inner Dowsing
Triton Knoll
Lincs
Race Bank Dudgeon
Teesside
Figure C4: GB Power Flow Diagram Gone Green 2022/23
Beatrice
Inch Cape
Neart na Gaolthe
Birkenhead
East Anglia
Scroby Sands
New Cumnock
Connah’s Quay
Middleton
Coalburn
Moffat
Fallago
Galashiels
Hawick
Harestanes
Tummel Bridge
Errochty
Tummel
Denny
Crossaig
Corriemoillie
Cashlie
Sutton Bridge
Rocksavage
Harris
Power Flow MWFlow Direction
400kV Substations275 kV Substations132kV SubstationsOffshore AC PlatformOffshore DC Platform400kV Circuits275kV Circuits220kV Circuits132kV CircuitsOffshore AC CableOffshore DC CableInterconnectors
Major Generating Sites Including Pumped Storage
Connected at 400kVConnected at 275 kVHydro Generation
Reconductor Circuit
New Circuit
1234
Round 1
Round 2
Scottish Territorial Waters Sites
Round 3
Offshore Wind Projects (as of 2016 - OCT - TEC)
5
447
206
Connah’s Quay
Middleton
Linnmill
Moffat
Fallago
GalashielsGalashiels
Hawick
Harestanes
Tummel Bridge
Errochty
Tummel
Denny
Crossaig
Corriemoillie
Cashlie
Sutton Bridge
New Cumnock
Black Law Extension
Hadyard
Kilgallioch
CumbernaldBainsford
Auchenwynd
Penn
PyleIver
Drax
Fleet
Abham
GrainHurst
Wylfa
Blyth
Sundon
Legacy
Stanah
Pentir
Kirkby
Hutton
Walham
Pelham
Harker
Elland
Keadby
MargamWarley
Norton
Cowley
Bolney
Rassau
Minety
Exeter
Fawley
Didcot
Cottam
Seabank
Taunton
Kitwell
Kemsley
Whitson
Laleham
Walpole
Grendon
Padiham
Rugeley
Rowdown
Norwich Main
Heysham
Enderby
NinfieldLovedean
Bramford
Bredbury
Nursling
Drakelow
Pitsmoor
Neepsend
Aldwarke
Sizewell
Melksham
Thornton
Offerton
Aberthaw
Rochdale
Hartmoor
Pembroke
Landulph
Rye House
Sellindge
Tynemouth
Wymondley
Feckenham
Poppleton
Cilfynydd
Axminster
Bridgwater
Bicker Fen
Staythorpe
Mannington
Ffestiniog
Spennymoor
Penwortham
Osbaldwick
Shrewsbury
Willington
Chickerell
Cellarhead
EatonSocon
Creyke Beck
Trawsfynydd
Grimsby West
Chesterfield
Burwell Main
Alverdiscott
Langage
Indian Queens
Hinkley Point
Dinorwig
Rainhill
Capenhurst Frodsham
Washway Farm
South Manchester
Carrington
DainesFiddlers Ferry
Macclesfield
Kearsley Whitegate
Stalybridge
Dungeness
Canterbury North
Braintree
Waltham Cross
Swansea North
Baglan Bay
Cardiff East
Tremorfa
Alpha Steel
Upper Boat Uskmouth
Imperial Park
Iron Acton
Marchwood
Botley Wood
Bramley
Culham
Quernmore
Coventry
Nechells
Willenhall Bustleholm
Hams Hall
BerkswellOldbury
Bishops Wood
Ironbridge
Ocker Hill
Spalding North
Patford Bridge
FerrybridgeEggborough
Thorpe Marsh
Thurcroft
Brinsworth
HighMarnham
Templeborough
West Melton
Norton LeesJordanthorpe
Sheffield City
Winco BankStocksbridge West
Burton
SaltendNorth
Saltend South
South Humber Bank
Bradford West Kirkstall Skelton
Grange MonkFryston
Killingholme
Humber Refinery
East Claydon
Rayleigh Main
Coryton
SinglewellKingsnorth
Littlebrook
WimbledonBeddington
Chessington
West Weybridge
St Johns Wood
EalingWillesden
Watford Elstree
Tottenham Redbridge
Barking
Leighton Buzzard
Amersham Main
TilburyCity Rd
NewCross
Hackney
Brimsdown
South Shields
West Boldon
Hawthorne Pit
HartlepoolTod Point
GrangetownGreystones
Lackenby
Stella West
Fourstones
Sloy
Shin
Orrin
Aigas
Quoich
Lochay
Foyers
Rannoch
Glenlee
Clachan
Cassley
Tongland
Errochty
Fasnakyle
Invergarry
Brora
Elgin
Keith
Eccles
Beauly
Thurso
Tealing
Torness
Kintore
Mybster
Dunbeath
Arbroath
Port Ann
Dalmally
Dounreay
LongannetCockenzie
Inveraray
Carradale
Peterhead
Hunterston
St. Fergus
Auchencrosh
Blackhillock
Fort Augustus
Kilmarnock South
Alness
Nairn
MossfordGrudie Bridge
Macduff
Dingwall
Inverness
Lairg
Luichart
DeanieCulligran
Kilmorack
Boat ofGarten
Broadford
Dunvegan
Stornoway
Harris
TaynuiltCruachan
Whistlefield
Nant
Fort William
KillinFinlarig
Errochty Power Station
Clunie
Fraserburgh
Dyce
Persley
Willowdale
Clayhills
Redmoss
Fiddes
TarlandCraigiebuckler
WoodhillGlenMorrison
Caennacroc
Dudhope
Milton of Craigie
Glenagnes
Lyndhurst
Charleston
Burghmuir
Glenrothes
Westfield
Dunoon
AyrCoylton
Maybole
Coalburn
Elvanfoot
Carsfad
Earlstoun
Chapelcross
GretnaDumfries Ecclefechan
Berwick
SCOTTISH HYDRO-ELECTRICTRANSMISSION
St. Fillans
Dunbar
Inverkeithing
Dudhope
NewtonStewart
Glenluce
SP TRANSMISSION LTD
Saltcoats
Meadowhead
Kilwinning
Kaimes
PortobellloShrubhill
MossmorranGlenniston
Redhouse
Leven
Cupar
Currie
GorgieTelford Rd.
Livingston
Bathgate
Grangemouth
DunfemlineKincardine
Devonside
Stirling
Bonnybridge
Easterhouse
Newarthill
Wishaw
Black LawStrathavenClydes Mill
EastKilbride South
Busby
WhiteleeKilmarnock Town
Neilston
Erskine
Devol Moor
Helensburgh
StrathlevenSpango Valley
Lambhill
Broxburn
West Ham
NorthfleetEast
West Thurrock
Windyhill
Stoke Bardolph
Bushbury
Bodelwyddan
Knaresborough
Saltholme
Hedon
Clyde (South)
Clyde (North)
Kendoon
Marshall Meadows
Whitelee Extn
SmeatonCoatbridge
Inverarnan
Whitehouse
Knocknagael
Crystal Rig
Dunlaw Extension
To Ireland
Ratcliffeon Soar
Cleve Hill
Mill Hill
Markhill
Arecleoch
Glendoe
Rocksavage
Ardmore
Strichen
North
Hunterston
HunterstonEast
Necton
Kinlochleven
Loch Buidhe
Ryhall
206
447
FlintshireBridge
North Argyll
400Spittal
SellindgeWest
Fyrish
Loch Buidhe
234
157
481
636
214
1840
1622
2004
1061148
3223248
666
48537
607
62
58
489
247
901
14631205
2059
2136
266
979
2082
1064
272
2074
1989
1643
555
867
1389
482
883
2266424
1547
1826
2092061
130
61
1743
1666
169
715
50
1060760
1350
50
270 940
35
160
571
2554
1070
1000
340150
280
1680
470
360
1333
2260
2112
240
1630
To France
To Netherlands
To Ireland
To Northern Ireland
To France
To France
To Denmark
To Norway
To Ireland
To France
Hornsea
Dogger Bank
Firth of Forth
Moray Firth
Rampion
East Anglia
Robin Rigg
Barrow
Ormonde
Rhyl Flats
Burbo Bank
Kentish Flats
Gunfleet Sands I&II
London Array
Gwynt y Mor
Thanet
Walney I & II
Greater Gabbard 500MW
West of Duddon Sands
Westermost Rough
Humber Gateway
Sheringham Shoal
Greater Gabbard 2nd part
North Hoyle
Lynn
Inner Dowsing
Triton Knoll
Lincs
Race Bank Dudgeon
Teesside
Figure C5: GB Power Flow Diagram Gone Green 2025/26
Beatrice
Inch Cape
Neart na Gaolthe
Birkenhead
New Cumnock
Connah’s Quay
Middleton
Coalburn
Moffat
Fallago
Galashiels
Hawick
Harestanes
Tummel Bridge
Errochty
Tummel
Denny
Crossaig
Corriemoillie
Cashlie
Sutton Bridge
Rocksavage
Harris
Power Flow MWFlow Direction
400kV Substations275 kV Substations132kV SubstationsOffshore AC PlatformOffshore DC Platform400kV Circuits275kV Circuits220kV Circuits132kV CircuitsOffshore AC CableOffshore DC CableInterconnectors
Major Generating Sites Including Pumped Storage
Connected at 400kVConnected at 275 kVHydro Generation
Reconductor Circuit
New Circuit
1234
Round 1
Round 2
Scottish Territorial Waters Sites
Round 3
Offshore Wind Projects (as of 2016 - OCT - TEC)
Scroby Sands
6
Connah’s Quay
Middleton
Linnmill
Moffat
Fallago
GalashielsGalashiels
Hawick
Harestanes
Tummel Bridge
Errochty
Tummel
Denny
Crossaig
Corriemoillie
Cashlie
Sutton Bridge
New Cumnock
Black Law Extension
Hadyard
Kilgallioch
CumbernaldBainsford
Auchenwynd
Penn
PyleIver
Drax
Fleet
Abham
GrainHurst
Wylfa
Blyth
Sundon
Legacy
Stanah
Pentir
Kirkby
Hutton
Walham
Pelham
Harker
Elland
Keadby
MargamWarley
Norton
Cowley
Bolney
Rassau
Minety
Exeter
Fawley
Didcot
Cottam
Seabank
Taunton
Kitwell
Kemsley
Whitson
Laleham
Walpole
Grendon
Padiham
Rugeley
Rowdown
Norwich Main
Heysham
Enderby
NinfieldLovedean
Bramford
Bredbury
Nursling
Drakelow
Pitsmoor
Neepsend
Aldwarke
Sizewell
Melksham
Thornton
Offerton
Aberthaw
Rochdale
Hartmoor
Pembroke
Landulph
Rye House
Sellindge
Tynemouth
Wymondley
Feckenham
Poppleton
Cilfynydd
Axminster
Bridgwater
Bicker Fen
Staythorpe
Mannington
Ffestiniog
Spennymoor
Penwortham
Osbaldwick
Shrewsbury
Willington
Chickerell
Cellarhead
EatonSocon
Creyke Beck
Trawsfynydd
Grimsby West
Chesterfield
Burwell Main
Alverdiscott
Langage
Indian Queens
Hinkley Point
Dinorwig
Rainhill
Capenhurst Frodsham
Washway Farm
South Manchester
Carrington
DainesFiddlers Ferry
Macclesfield
Kearsley Whitegate
Stalybridge
Dungeness
Canterbury North
Braintree
Waltham Cross
Swansea North
Baglan Bay
Cardiff East
Tremorfa
Alpha Steel
Upper Boat Uskmouth
Imperial Park
Iron Acton
Marchwood
Botley Wood
Bramley
Culham
Quernmore
Coventry
Nechells
Willenhall Bustleholm
Hams Hall
BerkswellOldbury
Bishops Wood
Ironbridge
Ocker Hill
Spalding North
Patford Bridge
FerrybridgeEggborough
Thorpe Marsh
Thurcroft
Brinsworth
HighMarnham
Templeborough
West Melton
Norton LeesJordanthorpe
Sheffield City
Winco BankStocksbridge West
Burton
SaltendNorth
Saltend South
South Humber Bank
Bradford West Kirkstall Skelton
Grange MonkFryston
Killingholme
Humber Refinery
East Claydon
Rayleigh Main
Coryton
SinglewellKingsnorth
Littlebrook
WimbledonBeddington
Chessington
West Weybridge
St Johns Wood
EalingWillesden
Watford Elstree
Tottenham Redbridge
Barking
Leighton Buzzard
Amersham Main
TilburyCity Rd
NewCross
Hackney
Brimsdown
South Shields
West Boldon
Hawthorne Pit
HartlepoolTod Point
GrangetownGreystones
Lackenby
Stella West
Fourstones
Sloy
Shin
Orrin
Aigas
Quoich
Lochay
Foyers
Rannoch
Glenlee
Clachan
Cassley
Tongland
Errochty
Fasnakyle
Invergarry
Brora
Elgin
Keith
Eccles
Beauly
Thurso
Tealing
Torness
Kintore
Mybster
Dunbeath
Arbroath
Port Ann
Dalmally
Dounreay
LongannetCockenzie
Inveraray
Carradale
Peterhead
Hunterston
St. Fergus
Auchencrosh
Blackhillock
Fort Augustus
Kilmarnock South
Alness
Nairn
MossfordGrudie Bridge
Macduff
Dingwall
Inverness
Lairg
Luichart
DeanieCulligran
Kilmorack
Boat ofGarten
Broadford
Dunvegan
Stornoway
Harris
TaynuiltCruachan
Whistlefield
Nant
Fort William
KillinFinlarig
Errochty Power Station
Clunie
Fraserburgh
Dyce
Persley
Willowdale
Clayhills
Redmoss
Fiddes
TarlandCraigiebuckler
WoodhillGlenMorrison
Caennacroc
Dudhope
Milton of Craigie
Glenagnes
Lyndhurst
Charleston
Burghmuir
Glenrothes
Westfield
Dunoon
AyrCoylton
Maybole
Coalburn
Elvanfoot
Carsfad
Earlstoun
Chapelcross
GretnaDumfries Ecclefechan
Berwick
SCOTTISH HYDRO-ELECTRICTRANSMISSION
St. Fillans
Dunbar
Inverkeithing
Dudhope
NewtonStewart
Glenluce
SP TRANSMISSION LTD
Saltcoats
Meadowhead
Kilwinning
Kaimes
PortobellloShrubhill
MossmorranGlenniston
Redhouse
Leven
Cupar
Currie
GorgieTelford Rd.
Livingston
Bathgate
Grangemouth
DunfemlineKincardine
Devonside
Stirling
Bonnybridge
Easterhouse
Newarthill
Wishaw
Black LawStrathavenClydes Mill
EastKilbride South
Busby
WhiteleeKilmarnock Town
Neilston
Erskine
Devol Moor
Helensburgh
StrathlevenSpango Valley
Lambhill
Broxburn
West Ham
NorthfleetEast
West Thurrock
Windyhill
Stoke Bardolph
Bushbury
Bodelwyddan
Knaresborough
Saltholme
Hedon
Clyde (South)
Clyde (North)
Kendoon
Marshall Meadows
Whitelee Extn
SmeatonCoatbridge
Inverarnan
Whitehouse
Knocknagael
Crystal Rig
Dunlaw Extension
To Ireland
Ratcliffeon Soar
Cleve Hill
Mill Hill
Markhill
Arecleoch
Glendoe
Rocksavage
Ardmore
Strichen
North
Hunterston
HunterstonEast
Necton
Kinlochleven
FlintshireBridge
North Argyll
450Spittal
SellindgeWest
Fyrish
Loch Buidhe
To Shetland
Branxton
Loch Buidhe
Ryhall
174
366
12
31
165
11
377
1024
1820
2400
1602707
1177252
243
969
11
326
1170
1811
995
1381
20051806
2927
3020
568
1057
2292
1506
317
2998
2344
3561
721
416
1515
393
1045
40181424
2714
2991
3104
2203001
157
42
1979
2421
863
465
30
660440
1270
65
550 1340 590
65
420
1444
3067
840
870
370160
774
288
980
2000
76
2260
640
250
3066
266
282
1573