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.
Austria Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Vienna/Substation-South – Vienna/Kendlergasse ? 1984 380 kV ; Vienna/Kendlergasse – Simmering ? ? 380 kV ; Vienna/Substation-North – Vienna/Dr.-Nekowitschstrasse 5,5 2006 380 kV ; Vienna/Substation-South – Vienna-South Cable Terminal ? ? 380 kV ;
Belgium Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Van Maerlant Substation – Gezelle Substation 9.8 2017 380 kV ;Nemo Link Converter Station – Gezelle Substation0.82018380 kV;Nobelwind Offshore Substation – Northwind Offshore Substation12.72016220 kV;Northwind Offshore Substation – Stevin Substation41.62016220 kV;Norther Offshore Substation – Stevin Substation27.62019220 kV;Rentel Offshore Substation – Stevin Substation40.32019220 kV;OSY1 Offshore Substation – Stevin Substation39.92019220 kV;Rentel Offshore Substation – OSY1 Offshore Substation4.12019220 kV;Seastar Offshore Substation – OSY1 Offshore Substation6.72020220 kV;Mermaid Offshore Substation – OSY1 Offshore Substation21.62020220 kV;Northwester 2 Offshore Substation – OSY1 Offshore Substation17.22020220 kV;Sources: Elia, OpenInfraMap, HoogspanningsNet
Belgium/Germany Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Aachen Liege Electricity Grid Overlay (ALEGrO) 90 2020 380 kV DC ;
Czech Republic
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Hradec substation, powerline to Etzenricht ? 1993 380 kV ;
Denmark
Facility Length (km) Year of inauguration Voltage Coordinates of endpointsGistrup – Skudshale8?400 kV;Little Belt Crossing12?400 kV;Great Belt power link582010400 kV DC;Tørveslettevej – Glentegård Substation11?400 kV;H. C. Ørsted Power Station – Avedøre Power Station9?400 kV;Avedøre Power Station – Ishøj Substation12?400 kV;Bjæverskov Substation – Ishøj Substation332018220 kV;Hovegård Substation – Ishøj Substation172019400 kV;Anholt Offshore Substation – Trige Substation832013220 kV;Horns Rev 3 Offshore Substation – Endrup Substation792016220 kV;Kriegers Flak A Offshore Substation – Kriegers Flak B Offshore Substation92020220 kV;Kriegers Flak A Offshore Substation – Bjæverskov Substation762020220 kV;Kriegers Flak B Offshore Substation – Bjæverskov Substation792020220 kV;Sources: OpenInfraMap
Denmark/Germany Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Kontek 171 1995 400 kV DC ;Kriegers Flak B Offshore Substation – Baltic 2 Offshore Substation242021150-170 kV;
Denmark/Netherlands Facility Length (km) Year of inauguration Voltage Coordinates of endpoints COBRAcable 325 2019 320 kV DC ;
Denmark/Norway Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Skagerrak 1 and 2 127 1977 250 kV DC ;Skagerrak 31271993350 kV DC;Skagerrak 42372014500 kV DC;
Denmark/Sweden Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Øresund Crossing Helsingør/Helsingborg8 ? 380 kV ;Konti-Skan 1 (Lyngså-Læsø)221965285 kV DC;Konti-Skan 1 (Læsø-Ambjörnhagen)591965285 kV DC;Konti-Skan 2 (Lyngså-Læsø)221988300 kV DC;Konti-Skan 2 (Læsø-Ambjörnhagen)591988300 kV DC;
Egypt/Jordan Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Red Sea Cable 13.6 1998 400 kV ;
Germany Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Berlin/Mitte – Berlin/Stadtautobahn 11,5 1977 380 kV ; Berlin/Reutter – Berlin/Teufelsbruch ? 1993 380 kV ; Berlin/Mitte – Berlin/Friedrichshain 6,3 1998 380 kV ; Berlin/Friedrichshain – Berlin/Marzahn 5,2 2000 380 kV ; Kraftwerk Altbach 0,3 ? 380 kV ; Lübeck/Bargerbück – Lübeck/Siems ? 2004 220 kV ; SITAC Park Undercrossing ? ? 220 kV ; Neckarwestheim/Nuclear Power Plant, Unit 2 – Neckarwestheim/Traction Current Inverter Station ? 2011 380 kV ; Paulaner Brewery Cable Tunnel ? 380 kV ;
Germany/Norway Facility Length (km) Year of inauguration Voltage Coordinates of endpoints NordLink 570 2021 500 kV DC ;
Germany/Sweden Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Baltic Cable 250 1994 450 kV DC ;
Morocco/ Spain Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Gibraltar Strait Power Cable ? 1998 380 kV ;
Italy Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Messina Strait Cable ? 1985 380 kV ; Milan Section of Turbigo-Rho line 8.5 2006 380 kV ;
Italy / Malta Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Malta–Sicily interconnector 120 2015 220 kV ;
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 ;
Netherlands Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Nieuwe Waterweg/Calandkanaal crossing 2.1 2005 380 kV ;North Sea Canal crossing0.92017380 kV;Delft – Pijnacker10.82013380 kV;Rijpwetering22019380 kV;Hoofddorp3.62019380 kV;Vijfhuizen – Vijfhuizen Substation2.92019380 kV;Sloe Power Plant – Borssele Substation3.72010380 kV;Maasstroom Power Plant – Simonshaven Substation12.42011380 kV;Enecogen Power Plant – Maasvlakte Substation12.22012380 kV;Onyx Power Plant – Maasvlakte Substation4.82016380 kV;Maasvlakte Power Plant – Maasvlakte Substation0.82016380 kV;Hollandse Kust Zuid Onshore Substation – Maasvlakte Substation3.72021380 kV;Gemini Onshore Substation – Eemshaven Oudeschip Substation1.72016380 kV;Eemshaven Filter Station – Eemshaven Oudeschip Substation0.82021380 kV;COBRA Converter Station – Eemshaven Oudeschip Substation0.32019380 kV;NorNed Converter Station – Eemshaven Substation1.32008380 kV;Wijk aan Zee Onshore Subtation – Beverwijk Substation5.52023380 kV;Gemini I Offshore Subtation – Gemini II Offshore Substation8.82017220 kV;Gemini I Offshore Subtation – Gemini Onshore Substation962016220 kV;Gemini II Offshore Subtation – Gemini Onshore Substation1032016220 kV;Borssele Alpha Offshore Substation – Zeeuwse Kust Onshore Substation612019220 kV;Borssele Beta Offshore Substation – Zeeuwse Kust Onshore Substation672019220 kV;Hollandse Kust Zuid Alpha Offshore Substation – Hollandse Kust Zuid Onshore Substation422021220 kV;Hollandse Kust Zuid Beta Offshore Substation – Hollandse Kust Zuid Onshore Substation342022220 kV;Hollandse Kust Noord Offshore Substation – Wijk aan Zee Onshore Substation2023220 kV;Hollandse Kust West Alpha Offshore Substation – Wijk aan Zee Onshore Substation2024 (under construction)220 kV;Hollandse Kust West Beta Offshore Substation – Wijk aan Zee Onshore Substation2025 (under construction)220 kV;IJmuiden Ver Alpha Offshore Converter Station – IJmuiden Ver Alpha Onshore Converter Stationplanned525 kV DCIJmuiden Ver Alpha Onshore Converter Station – Borssele Substationplanned380 kV;IJmuiden Ver Beta Offshore Converter Station – IJmuiden Ver Beta Onshore Converter Stationplanned525 kV DCIJmuiden Ver Beta Onschore Converter Station – Maasvlakte Substationplanned380 kV;IJmuiden Ver Gamma Offshore Converter Station – IJmuiden Ver Gamma Onshore Converter Stationplanned525 kV DCIJmuiden Ver Gamma Onshore Converter Station – Maasvlakte Substationplanned380 kV;Sources: TenneT, OpenInfraMap, HoogspanningsNet, Net op zee
Netherlands/Norway Facility Length (km) Year of inauguration Voltage Coordinates of endpoints NorNed 580 2008 450 kV DC ;
New Zealand Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Brownhill–Pakuranga link 11 2012 220 kV Auckland cross-harbour power cable(Pakuranga–Albany) 37 2014 220 kV ;
Norway Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Oslofjorden Cable Crossing 420 kV ;
Spain Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Madrid Barajas Runway Tunnel 13 2003 380 kV ;
Switzerland/ Italy Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Mendrisio – Cagno Interconnection 8 2008 400 ;
Turkey Facility Length (km) Year of inauguration Voltage Coordinates of endpoints Sutlüce – Lapseki (Dardanelles crossing I) 4.6 2015 400 ; Sutlüce – Lapseki (Dardanelles crossing II) 4.6 2017 400 ;
United Kingdom
Facility Length (km) Year of inauguration Voltage Coordinates of endpointsBeatrice Wind Farm, Moray Firth – Blackhillock substation, Moray702007, 2018220 kV58°7′48″N 3°4′12″W ; 57.4984°N 2.9883°WBicester, East Claydon – Bicester substations, Oxfordshire132 kV51.92663°N 0.90307°WBradford, Bradford West – Kirkstall substations (line partly underground) Yorkshire275 kV53.82822°N 1.77895°WBrechfa Forest West onshore wind farm, Carmarthenshire2018132 kV51°59′00″N 04°09′50″WBurbo Bank offshore wind farm, Liverpool Bay – onshore substation, Denbighshire2008, 2017220 kV53.48°N 3.26°W ;
53.26038°N 3.50465°WCaithness–Moray Transmission link, Spittal, Caithness, Scotland – Blackhillock, Moray, Scotland1132019320 kV58.4485°N 3.4376°W ; 57.4984°N 2.9883°WDinorwig power station – Pentir, Gwynedd1984400 kV53° 7′ 7″ N, 4° 6′ 50″ W ;
53.1723°N 4.1694°WDorset Area of Outstanding Natural Beauty92022400kV ; Dudgeon offshore wind farm – Necton substation, Norfolk2017132kV53.249°N 1.39°E ; 52.65838°N 0.80156°EEast Anglia one offshore wind farm – Bramford substation, Suffolk>432020220 kV52°54′28″N 2°37′43″E ; 52.07049°N 1.06118°EEdinburgh, Gardners Crescent – Dewar Place Substation, Edinburgh0.22010275 kV55.92991°N 3.18669°WFawley Tunnel (Fawley – Chilling), Hampshire3.21966400 kV50.826°N 1.314°WFawley – Langley, Hampshire132 kV50.81551°N 1.34029°WGreater Gabbard and Galloper Array offshore wind farms – Sizewell, Suffolk>232012 and 2018132 kV51.8052°N 1.7855°E ;
52.215°N 1.61972°EGunfleet sands offshore wind farm, Clacton, Essex2010132kV51°44′22″N 1°10′28″E ;
51.7945°N 1.2543°EGwynt y Môr offshore wind farm – Bodelwyddan substation, Denbighshire>182015132 kV53°27′N 3°35′W ;
53.26038°N 3.50465°WHornsea offshore wind farm – Killingholme, North East Lincolnshire2019220 kV53.885°N 1.791°E ;
53.64225°N 0.26928°EHull, Creyke Bank – Hull South substations, Hull132 kV53.79994°N 0.41269°WHull, Sculcoates B – Cornwall Street substation, Hull132 kV53.76075°N 0.33407°WHull, Salt End substation – Hull East substation, Hull132 kV53.74236°N 0.23795°WHVDC Kingsnorth (Kingsnorth, Kent – Beddington – Willesden, London)59 km + 26 km1974 (decommissioned 1986)± 266 kV51.418947°N 0.602702°E ;
51.4011°N 0.1388°WIsle of Wight submarine cables (Langley, Hampshire – Cowes & East Wooton, Isle of Wight)132 kV50.80967°N 1.35447°W ;
50.711304°N 1.254048°WKentish Flats offshore wind farm, Kent200533 kV51°27′36″N 1°5′24″E ; 51.3548°N 1.08534°ELaleham, Surrey – Ealing – Willesden, West London275 kV51.4236°N 0.47021°W ; 51.5008°N 0.29402°W ; 51.53354°N 0.2553°WLiverpool, Kirkby –Lister Drive City, Merseyside102007400 kV53.46966°N 2.84288°WLondon Array offshore wind farm – Cleve Hill, Kent2013150 kV51°38′N 1°29′E ;