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This is: a list of high voltage (above 150 kV) AC electrical transmission lines. This list is incomplete.
For high-voltage direct current, both underground and submarine, see List of HVDC projects.
This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.
Austria※
Belgium※
Belgium/Germany※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Aachen Liege Electricity Grid Overlay (ALEGrO) | 90 | 2020 | 380 kV DC | 50°45′11″N 5°40′03″E / 50.7530°N 5.6676°E / 50.7530; 5.6676 (ALEGrO Converter Station Lixhe);50°52′18″N 6°27′10″E / 50.8718°N 6.4529°E / 50.8718; 6.4529 (ALEGrO Converter Station Oberzier) |
Czech Republic※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Hradec substation, powerline to Etzenricht | ? | 1993 | 380 kV | 50°20′48″N 13°19′26″E / 50.3466°N 13.3239°E / 50.3466; 13.3239 (Hradec substation, powerline to Etzenricht, busbar terminal) ; 50°20′42″N 13°19′54″E / 50.3451°N 13.3317°E / 50.3451; 13.3317 (Hradec substation, powerline to Etzenricht, overhead line terminal) |
Denmark※
Denmark/Germany※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Kontek | 171 | 1995 | 400 kV DC | 55°27′05″N 12°00′22″E / 55.4515°N 12.0061°E / 55.4515; 12.0061 (Bjæverskov Substation);54°06′03″N 12°12′58″E / 54.1008°N 12.2161°E / 54.1008; 12.2161 (Bentwisch Substation) |
Kriegers Flak B Offshore Substation - Baltic 2 Offshore Substation | 24 | 2021 | 150-170 kV | 55°02′55″N 12°56′43″E / 55.0485°N 12.9453°E / 55.0485; 12.9453 (Kriegers Flak B Offshore Substation);54°58′20″N 13°09′42″E / 54.9721°N 13.1617°E / 54.9721; 13.1617 (Baltic 2 Offshore Substation) |
Denmark/Netherlands※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
COBRAcable | 325 | 2019 | 320 kV DC | 55°31′51″N 8°42′21″E / 55.5308°N 8.7058°E / 55.5308; 8.7058 (Endrup Susbstation);53°26′08″N 6°52′01″E / 53.4356°N 6.8670°E / 53.4356; 6.8670 (COBRA Converter Station Eemshaven) |
Denmark/Norway※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Skagerrak 1 and 2 | 127 | 1977 | 250 kV DC | 57°07′34″N 9°03′59″E / 57.1262°N 9.0663°E / 57.1262; 9.0663 (Bulbjerg Cable Terminal);58°07′45″N 8°10′03″E / 58.1291°N 8.1676°E / 58.1291; 8.1676 (Cable Terminal) |
Skagerrak 3 | 127 | 1993 | 350 kV DC | 57°07′34″N 9°03′59″E / 57.1262°N 9.0663°E / 57.1262; 9.0663 (Bulbjerg Cable Terminal);58°07′45″N 8°10′03″E / 58.1291°N 8.1676°E / 58.1291; 8.1676 (Cable Terminal) |
Skagerrak 4 | 237 | 2014 | 500 kV DC | 56°28′44″N 9°34′00″E / 56.4788°N 9.5666°E / 56.4788; 9.5666 (Tjele Converter Station);58°15′35″N 7°53′59″E / 58.2597°N 7.8997°E / 58.2597; 7.8997 (Kristiansand Converter Station) |
Denmark/Sweden※
Egypt/Jordan※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Red Sea Cable | 13.6 | 1998 | 400 kV | 29°29′11″N 34°52′31″E / 29.4863°N 34.8754°E / 29.4863; 34.8754 (Taba Cable Terminal) ; 29°25′57″N 34°58′38″E / 29.4324°N 34.9771°E / 29.4324; 34.9771 (Aqaba Cable Terminal) |
Germany※
Germany/Norway※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
NordLink | 570 | 2021 | 500 kV DC | 53°55′09″N 9°20′39″E / 53.9192°N 9.3443°E / 53.9192; 9.3443 (Wilster Converter Station);58°15′59″N 6°40′47″E / 58.2664°N 6.6798°E / 58.2664; 6.6798 (Djupvik Cable Terminal) |
Germany/Sweden※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Baltic Cable | 250 | 1994 | 450 kV DC | 53°53′46″N 10°48′09″E / 53.8961°N 10.8024°E / 53.8961; 10.8024 (Herrenwyk Converter Station);55°25′27″N 13°03′44″E / 55.4241°N 13.0621°E / 55.4241; 13.0621 (Västra Värlinge Cable Terminal) |
Morocco/ Spain※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Gibraltar Strait Power Cable | ? | 1998 | 380 kV | 35°49′51″N 5°36′49″W / 35.8309°N 5.6137°W / 35.8309; -5.6137 (Morocco Cable Terminal) ; 36°01′56″N 5°36′22″W / 36.0323°N 5.6061°W / 36.0323; -5.6061 (Tarifa Cable Terminal) |
Italy※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Messina Strait Cable | ? | 1985 | 380 kV | 38°12′12″N 15°38′16″E / 38.2032°N 15.6379°E / 38.2032; 15.6379 (Villa San Giovanni Cable Terminal) ; 38°13′43″N 15°33′40″E / 38.2286°N 15.5611°E / 38.2286; 15.5611 (Messina Cable Terminal) |
Milan Section of Turbigo-Rho line | 8.5 | 2006 | 380 kV | 45°31′46″N 8°58′17″E / 45.5294°N 8.9714°E / 45.5294; 8.9714 (Pogliano Cable Terminal) ; 45°32′38″N 9°03′24″E / 45.5439°N 9.0568°E / 45.5439; 9.0568 (Rho Cable Terminal) |
Italy / Malta※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Malta–Sicily interconnector | 120 | 2015 | 220 kV | 36°52′51″N 14°40′51″E / 36.8809°N 14.6809°E / 36.8809; 14.6809 (Ragusa Substation) ; 35°56′19″N 14°26′17″E / 35.9386°N 14.4380°E / 35.9386; 14.4380 (Magħtab Substation) |
Japan※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Shin-Toyosu Line | 40 | November 2000 | 500 kV | 35.6479°N, 139.7913°E ; 35.7801°N, 140.07131°E |
Luxembourg※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Bettembourg West Bypass ( Part of 220 kV-line Schifflange-Berchem) | ? | ? | 220 kV | 49°30′58″N 6°05′24″E / 49.5160°N 6.0899°E / 49.5160; 6.0899 (Bettembourg West Bypass, Terminal South) ; 49°31′59″N 6°06′06″E / 49.5331°N 6.1017°E / 49.5331; 6.1017 (Bettembourg West Bypass, Terminal North) |
Netherlands※
Netherlands/Norway※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
NorNed | 580 | 2008 | 450 kV DC | 53°26′05″N 6°51′58″E / 53.4346°N 6.8662°E / 53.4346; 6.8662 (Eemshave Converter Station);58°16′57″N 6°52′02″E / 58.2826°N 6.8673°E / 58.2826; 6.8673 (Freda Converter Station) |
New Zealand※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Brownhill–Pakuranga link | 11 | 2012 | 220 kV | 36°58′25″S 174°57′35″E / 36.9736°S 174.9597°E / -36.9736; 174.9597 (Brownhill transition substation) 36°55′34″S 174°54′23″E / 36.9261°S 174.9063°E / -36.9261; 174.9063 (Pakuranga Substation) |
Auckland cross-harbour power cable (Pakuranga–Albany) |
37 | 2014 | 220 kV | 36°55′34″S 174°54′23″E / 36.9261°S 174.9063°E / -36.9261; 174.9063 (Pakuranga Substation) ; 36°44′22″S 174°41′27″E / 36.7395°S 174.6907°E / -36.7395; 174.6907 (Albany Substation) |
Norway※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Oslofjorden Cable Crossing | 420 kV | 59°20′36″N 10°28′44″E / 59.3432°N 10.4790°E / 59.3432; 10.4790 (Oslofjorden Cable, Terminal West) ; 59°21′55″N 10°39′42″E / 59.3654°N 10.6616°E / 59.3654; 10.6616 (Oslofjorden Cable, Terminal East) |
Spain※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Madrid Barajas Runway Tunnel | 13 | 2003 | 380 kV | 40°32′59″N 3°34′00″W / 40.5498°N 3.5667°W / 40.5498; -3.5667 (380 kV Cable Terminal) ; 40°27′03″N 3°31′17″W / 40.4509°N 3.5213°W / 40.4509; -3.5213 (380 kV Cable Terminal) |
Switzerland/ Italy※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Mendrisio – Cagno Interconnection | 8 | 2008 | 400 | 45°48′50″N 8°54′11″E / 45.8140°N 8.9031°E / 45.8140; 8.9031 (Cagno Substation) ; 45°51′53″N 8°58′18″E / 45.8647°N 8.9717°E / 45.8647; 8.9717 (Mendrisio Substation) |
Turkey※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Sutlüce - Lapseki (Dardanelles crossing I) | 4.6 | 2015 | 400 | 40°21′06″N 26°37′05″E / 40.35161°N 26.617991°E / 40.35161; 26.617991 (Sutlüce Substation) ; 40°19′32″N 26°39′05″E / 40.32560°N 26.65152°E / 40.32560; 26.65152 (Lapseki Substation) |
Sutlüce - Lapseki (Dardanelles crossing II) | 4.6 | 2017 | 400 | 40°20′05″N 26°36′00″E / 40.33481°N 26.599901°E / 40.33481; 26.599901 (Sutlüce Substation) ; 40°19′04″N 26°38′33″E / 40.31766°N 26.64238°E / 40.31766; 26.64238 (Lapseki Substation) |
United Kingdom※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Beatrice Wind Farm, Moray Firth – Blackhillock substation, Moray | 70 | 2007, 2018 | 220 kV | 58°7′48″N 3°4′12″W ; 57.4984°N 2.9883°W |
Bicester, East Claydon – Bicester substations, Oxfordshire | 132 kV | 51.92663°N 0.90307°W | ||
Bradford, Bradford West – Kirkstall substations (line partly underground) Yorkshire | 275 kV | 53.82822°N 1.77895°W | ||
Brechfa Forest West onshore wind farm, Carmarthenshire | 2018 | 132 kV | 51°59′00″N 04°09′50″W | |
Burbo Bank offshore wind farm, Liverpool Bay – onshore substation, Denbighshire | 2008, 2017 | 220 kV | 53.48°N 3.26°W ;
53.26038°N 3.50465°W | |
Caithness-Moray Transmission link, Spittal, Caithness, Scotland – Blackhillock, Moray, Scotland | 113 | 2019 | 320 kV | 58.4485°N 3.4376°W ; 57.4984°N 2.9883°W |
Dinorwig power station – Pentir, Gwynedd | 1984 | 400 kV | 53° 7′ 7″ N, 4° 6′ 50″ W ;
53.1723°N 4.1694°W | |
Dorset Area of Outstanding Natural Beauty | 9 | 2022 | 400kV | 50°39′36″N 2°30′40″W / 50.660°N 2.511°W / 50.660; -2.511 ; 50°42′18″N 2°32′10″W / 50.705°N 2.536°W / 50.705; -2.536 |
Dudgeon offshore wind farm – Necton substation, Norfolk | 2017 | 132kV | 53.249°N 1.39°E ; 52.65838°N 0.80156°E | |
East Anglia one offshore wind farm – Bramford substation, Suffolk | >43 | 2020 | 220 kV | 52°54′28″N 2°37′43″E ; 52.07049°N 1.06118°E |
Edinburgh, Gardners Crescent – Dewar Place Substation, Edinburgh | 0.2 | 2010 | 275 kV | 55.92991°N 3.18669°W |
Fawley Tunnel (Fawley – Chilling), Hampshire | 3.2 | 1966 | 400 kV | 50.826°N 1.314°W |
Fawley – Langley, Hampshire | 132 kV | 50.81551°N 1.34029°W | ||
Greater Gabbard and Galloper Array offshore wind farms – Sizewell, Suffolk | >23 | 2012 and 2018 | 132 kV | 51.8052°N 1.7855°E ;
52.215°N 1.61972°E |
Gunfleet sands offshore wind farm, Clacton, Essex | 2010 | 132kV | 51°44′22″N 1°10′28″E ;
51.7945°N 1.2543°E | |
Gwynt y Môr offshore wind farm – Bodelwyddan substation, Denbighshire | >18 | 2015 | 132 kV | 53°27′N 3°35′W ;
53.26038°N 3.50465°W |
Hornsea offshore wind farm – Killingholme, North East Lincolnshire | 2019 | 220 kV | 53.885°N 1.791°E ;
53.64225°N 0.26928°E | |
Hull, Creyke Bank – Hull South substations, Hull | 132 kV | 53.79994°N 0.41269°W | ||
Hull, Sculcoates B – Cornwall Street substation, Hull | 132 kV | 53.76075°N 0.33407°W | ||
Hull, Salt End substation – Hull East substation, Hull | 132 kV | 53.74236°N 0.23795°W | ||
HVDC Kingsnorth (Kingsnorth, Kent – Beddington – Willesden, London) | 59 km + 26 km | 1974 (decommissioned 1986) | ± 266 kV | 51.418947°N 0.602702°E ;
51.4011°N 0.1388°W |
Isle of Wight submarine cables (Langley, Hampshire – Cowes & East Wooton, Isle of Wight) | 132 kV | 50.80967°N 1.35447°W ;
50.711304°N 1.254048°W | ||
Kentish Flats offshore wind farm, Kent | 2005 | 33 kV | 51°27′36″N 1°5′24″E ; 51.3548°N 1.08534°E | |
Laleham, Surrey – Ealing – Willesden, West London | 275 kV | 51.4236°N 0.47021°W ; 51.5008°N 0.29402°W ; 51.53354°N 0.2553°W | ||
Liverpool, Kirkby –Lister Drive City, Merseyside | 10 | 2007 | 400 kV | 53.46966°N 2.84288°W |
London Array offshore wind farm – Cleve Hill, Kent | 2013 | 150 kV | 51°38′N 1°29′E ;
51.3315°N 0.9303°E | |
London, St John's Wood – City Road | 400 kV | 51.52666°N 0.16488°W ; 51.52832°N 0.09124°W | ||
London, City Road – West Ham | 400 kV | 51.52832°N 0.09124°W ; 51.518684°N 0.002197°E | ||
London, Beddington Cable Tunnel,(Beddington – Rowdown) | 400 kV | 51.36594°N 0.12324°W ; 51.34789°N 0.00954°W | ||
London, Hertfordshire, Elstree to St. John's Wood Deep Cable Tunnel | 20 | 2005 | 400 kV | 51.52666°N 0.16488°W ; 51.65512°N 0.32714°W |
London, West Ham – Hackney (Lower Lea Valley Cable Tunnel) | 6.3 | 2008 | 400 kV | 51.518684°N 0.002197°E ; 51.56108°N 0.05404°W |
London, London Power Tunnels, (Hackney – St. John's Wood) | 12.5 | 2018 | 400 kV | 51.56108°N 0.05404°W ; 51.53599°N 0.23703°W |
London, London Power Tunnels (St. John's Wood – Kensal Green – Willesden) | 7.4 | 2018 | 400 kV | 51.52666°N 0.16488°W ; 51.53599°N 0.23703°W |
London, London Power Tunnels (Kensal Green – Wimbledon) | 12.1 | 2018 | 400 kV | 51.52636°N 0.22584°W ; 51.42784°N 0.18237°W |
London, Wimbledon – New Cross | 12 | 2025 (under construction) | 400 kV | 51.42784°N 0.18237°W ; 51.48082°N 0.06239°W |
London, New Cross – Hurst | 18 | 2026 (under construction) | 400 kV | 51.48082°N 0.06239°W ; 51.43236°N 0.1541°E |
London, Hurst – Crayford | 2.5 | 2024 (under construction) | 400 kV | 51.43236°N 0.1541°E ; 51.44775°N 0.17925°E |
London, St. John's Wood – Tottenham substations | 275 kV | 51.527499°N 0.169376°W ; 51.603178°N 0.048243°W | ||
London, Tottenham – Redbridge substations | 275 kV | 51.603178°N 0.048243°W ; 51.588552°N 0.044926°E | ||
Lynn and Inner Dowsing offshore wind farms, Lincolnshire – Walpole substation, Norfolk | 2009 | 132 kV | 53°07′39″N 00°26′10″E ; 52.73139°N 0.2281°E | |
Moyle Interconnector (Auchencrosh, Dumfries and Galloway – Ballycronan More, County Antrim, Northern Ireland) | 63.5 | 2001 | 275 kV DC | 55.07313°N 4.98188°W ; 54.83746°N 5.7806°W |
Orrmonde offshore wind farm – Heysham, Lancashire | 2012 | 132 kV | 54°6′N 3°24′W ; 54.0331°N 2.87913°W | |
Race Bank offshore wind farm – Walpole substation, Norfolk | 2018 | 250 kV | 53.276°N 0.841°E ; 52.73139°N 0.2281°E | |
Rampion offshore wind farm – Bolney, Sussex | 2018 | 150 kV | 50°40′0″N 0°16′0″W ; 50.97535°N 0.22574°W | |
Redcar, Lackenby –Thornton, part buried, Redcar and Cleveland | 400 kV | 54.5157°N 1.169°W | ||
River Medway Cable Tunnels (Grain – Chetney Marsh), Kent | 1.7 | 1977 | 400 kV | 51°25'14.6"N 0°41'59.6"E ; 51°26'09.0"N 0°42'18.9"E |
Severn-Wye Cable Tunnel (Aust – Newhouse) | 3.6 | 1973 | 400 kV | 51.608459°N 2.615454°W ; 51.610878°N 2.669090°W |
Sheffield, Neepsend – Pitsmoor and Sheffield City substations, South Yorkshire | 275 kV | 53.4026°N 1.48569°W | ||
Sheringhan Shoal offshore wind farm, Norfolk – substation, Norfolk | 2012 | 132 kV | 53.135°N 1.147°E ; 52.76802°N 1.13913°E | |
Thanet offshore wind farm – Richborough, Kent | 2010 | 132 kV | 51.4306°N 1.6331°E ; 51.3101°N 1.35278°E | |
Walney and West of Duddon Sands offshore wind farms – Heysham Lancashire | 2011, 2014, 2018 | 220 kV | 54.044°N 3.522°W and 53.983°N 3.463°W ; 54.0331°N 2.87913°W | |
Western HVDC Link (Hunterston – Connah's Quay) | 422 | 2018 | 600 kV DC | 55°43′20″N 4°53′24″W ; 53.232162°N 3.0813°W |
Woodhead tunnel, South Yorkshire | 4.888 | 1969 | 400 kV | 53.495659°N 1.829765°W ; 53.517377°N 1.765451°W |
River Thames | For crossings under the Thames see Powerline river crossings in the United Kingdom |
UK – Europe※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
BritNed (Isle of Grain, Kent – Maasvlakte, Netherlands) | 260 | 2011 | ±450 kV DC | 51°26′24″N 0°43′0″E ; 51.96127°N 4.01617°E |
East–West Interconnector (Shotton, Flintshire, Wales – Rush North Beach, County Dublin, Republic of Ireland) | 263 | 2012 | ±200 kV DC | 53°13′38″N 3°4′22″W ;
53°28′16″N 6°34′3″W |
HVDC Cross-Channel (Sellinge, Kent – Poste électrique des Mandarins, France) | 73 | 1986 | ±270 kV DC | 51.10452°N 0.98393°E ; 50.90776°N 1.72806°E |
IFA-2 Interconnexion France-Angleterre (Fareham, Hampshire – Tourbe, France) | 204 | Under construction | ±320 kV DC | 50.8217°N 1.18448°W ; 49.1139°N 0.2324°W |
Isle of Man to England Interconnector (Bispham, Blackpool – Douglas Head, Isle of Man) | 104 | 2000 | 90 kV AC | 53°50′57″N 03°01′46″W ;
54°08′52″N 4°28′51″W |
Nemo Link (Richborough, Kent – Nemo Link Converter Station, Belgium) | 141.5 | 2019 | 400 kV DC | 51.309239°N 1.344376°E ; 51.25245°N 3.17864°E |
North Sea Link (Blyth, Northumberland – Kvilldal, Norway) | 730 | 2021 (Under testing phase) | ±515 kV DC | 55.14364°N 1.54245°W ; 59.4965°N 6.6984°E |
Viking Link (Bicker Fen, Lincolnshire – Revsing, Denmark) | 740 | 2023 (Under construction) | ±525 kV DC | 55.523056°N 8.709722°E ; 52.930278°N 0.220556°W |
Canada※
Facility | Length (km) | Year of inauguration | Voltage | Coordinates of endpoints |
---|---|---|---|---|
Trincomali Channel, AC-Cable | ? | ? | 280 kV | 48°52′46″N 123°24′10″W / 48.8794°N 123.4027°W / 48.8794; -123.4027 (Parker Island Cable Terminal) ; 48°51′48″N 123°27′09″W / 48.8632°N 123.4525°W / 48.8632; -123.4525 (Salt Spring Island Cable Terminal) |
Galiano Island-Canadian Mainland, AC-Cable | ? | ? | 280 kV | 48°55′07″N 123°24′14″W / 48.9186°N 123.4040°W / 48.9186; -123.4040 (Galiano Island Cable Terminal) ; ? |
Malaspina Strait Cable | ? | ? | 500 kV | 49°40′27″N 124°12′13″W / 49.6741°N 124.2035°W / 49.6741; -124.2035 (Cockburn Cable Terminal) ; 49°37′48″N 124°17′03″W / 49.6301°N 124.2842°W / 49.6301; -124.2842 (Texada Island Cable Terminal East) |
Texada Island-Vancouver Island Cable | ? | ? | 500 kV | 49°35′25″N 124°21′30″W / 49.5903°N 124.3582°W / 49.5903; -124.3582 (Texada Island Cable Terminal West) ; 49°25′18″N 124°38′35″W / 49.4217°N 124.6431°W / 49.4217; -124.6431 (Nile Creek Cable Terminal) |
References※
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{{cite web}}
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