List of high voltage underground and submarine cables

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 expanding it with reliably sourced entries.

Austria
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Vienna/Substation-South - Vienna/Kendlergasse?1984380 kV48.1651°N 16.3312°E / 48.1651; 16.3312 (Vienna South Substation) ; 48.2052°N 16.3111°E / 48.2052; 16.3111 (Vienna/Kendlergasse substation)
Vienna/Kendlergasse - Simmering??380 kV48.2052°N 16.3111°E / 48.2052; 16.3111 (Vienna/Kendlergasse substation) ; 48.1813°N 16.4338°E / 48.1813; 16.4338 (Simmering substation)
Vienna/Substation-North - Vienna/Dr.-Nekowitschstrasse5,52006380 kV48.2576°N 16.3900°E / 48.2576; 16.3900 (Vienna North Substation) ; 48.2968°N 16.3958°E / 48.2968; 16.3958 (Vienna/Dr.-Nekowitschstrasse Cable Terminal)
Vienna/Substation-South - Vienna-South Cable Terminal??380 kV48.1651°N 16.3312°E / 48.1651; 16.3312 (Vienna South Substation) ; 48.1362°N 16.3406°E / 48.1362; 16.3406 (Vienna-South Cable Terminal)

Czech Republic
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Hradec substation, powerline to Etzenricht?1993380 kV50.3466°N 13.3239°E / 50.3466; 13.3239 (Hradec substation, powerline to Etzenricht, busbar terminal) ; 50.3451°N 13.3317°E / 50.3451; 13.3317 (Hradec substation, powerline to Etzenricht, overhead line terminal)

Denmark
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Jutland142003380 kV
Copenhagen221996380 kV
Copenhagen121999380 kV

Denmark/ Sweden
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Helsingborg-Helsingor Cable??380 kV56.0829°N 12.5002°E / 56.0829; 12.5002 (Helsingor Cable Terminal) ; 56.1324°N 12.5955°E / 56.1324; 12.5955 (Helsingborg Cable Terminal)

Egypt/Jordan
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Red Sea Cable13.61998400 kV29.4863°N 34.8754°E / 29.4863; 34.8754 (Taba Cable Terminal) ; 29.4324°N 34.9771°E / 29.4324; 34.9771 (Aqaba Cable Terminal)

Germany
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Berlin/Mitte - Berlin/Stadtautobahn11,51977380 kV52.5033°N 13.3691°E / 52.5033; 13.3691 (Berlin-Mitte Substation); 52.5265°N 13.2809°E / 52.5265; 13.2809 (Terminal Berlin Stadtautobahn)
Berlin/Reutter - Berlin/Teufelsbruch?1993380 kV52.5806°N 13.2116°E / 52.5806; 13.2116 (Teufelsbruch Substation) ; 52.5316°N 13.2488°E / 52.5316; 13.2488 (Reutter Substation)
Berlin/Mitte - Berlin/Friedrichshain6,31998380 kV52.5033°N 13.3691°E / 52.5033; 13.3691 (Berlin-Mitte Substation) ; 52.5223°N 13.4571°E / 52.5223; 13.4571 (Berlin-Friedrichshain Substation)
Berlin/Friedrichshain - Berlin/Marzahn5,22000380 kV52.5223°N 13.4571°E / 52.5223; 13.4571 (Berlin-Friedrichshain Substation); 52.5354°N 13.5240°E / 52.5354; 13.5240 (Berlin-Marzahn Substation)
Kraftwerk Altbach0,3?380 kV48.7190°N 9.3708°E / 48.7190; 9.3708 (Altbach Terminal West); 48.7187°N 9.3745°E / 48.7187; 9.3745 (Altbach Terminal East)
Lübeck/Bargerbück - Lübeck/Siems?2004220 kV53.9098°N 10.7584°E / 53.9098; 10.7584 (Lübeck-Siems Substation); 53.9192°N 10.6408°E / 53.9192; 10.6408 (Lübeck-Bargerbück Substation)
SITAC Park Undercrossing??220 kV52.4312°N 13.5064°E / 52.4312; 13.5064 (SITAC Park Undercrossing, Terminal West); 52.4249°N 13.5232°E / 52.4249; 13.5232 (SITAC Park Undercrossing, Terminal East)
Neckarwestheim/Nuclear Power Plant, Unit 2 - Neckarwestheim/Traction Current Inverter Station?2011380 kV49.0396°N 9.1768°E / 49.0396; 9.1768 (Neckarwestheim/Nuclear Power Plant, Unit 2); 49.0380°N 9.1797°E / 49.0380; 9.1797 (Neckarwestheim/Traction Current Inverter Station)
Paulaner Brewery Cable Tunnel?380 kV48.1782°N 11.4309°E / 48.1782; 11.4309 (Paulaner Brewery Cable Tunnel, Terminal West); 48.1762°N 11.4341°E / 48.1762; 11.4341 (Paulaner Brewery Cable Tunnel, Terminal East)

Morocco/ Spain
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Gibraltar Strait Power Cable?1998380 kV35.8309°N 5.6137°W / 35.8309; -5.6137 (Morocco Cable Terminal) ; 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?1985380 kV38.2032°N 15.6379°E / 38.2032; 15.6379 (Villa San Giovanni Cable Terminal) ; 38.2286°N 15.5611°E / 38.2286; 15.5611 (Messina Cable Terminal)
Milan Section of Turbigo-Rho line8.52006380 kV45.5294°N 8.9714°E / 45.5294; 8.9714 (Pogliano Cable Terminal) ; 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 interconnector1202015220 kV36.8809°N 14.6809°E / 36.8809; 14.6809 (Ragusa Substation) ; 35.9386°N 14.4380°E / 35.9386; 14.4380 (Magħtab Substation)

Luxembourg
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Bettembourg West Bypass ( Part of 220 kV-line Schifflange-Berchem)??220 kV49.5160°N 6.0899°E / 49.5160; 6.0899 (Bettembourg West Bypass, Terminal South) ; 49.5331°N 6.1017°E / 49.5331; 6.1017 (Bettembourg West Bypass, Terminal North)

Netherlands
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Rotterdam Rhine waterway crossings2.12005380 kV

New Zealand
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Brownhill–Pakuranga link112012220 kV36.9736°S 174.9597°E / -36.9736; 174.9597 (Brownhill transition substation) 36.9261°S 174.9063°E / -36.9261; 174.9063 (Pakuranga Substation)
Auckland cross-harbour power cable
(Pakuranga–Albany)		372014220 kV36.9261°S 174.9063°E / -36.9261; 174.9063 (Pakuranga Substation) ; 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 Crossing420 kV59.3432°N 10.4790°E / 59.3432; 10.4790 (Oslofjorden Cable, Terminal West) ; 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 Tunnel132003380 kV40.5498°N 3.5667°W / 40.5498; -3.5667 (380 kV Cable Terminal) ; 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 Interconnection8200840045.8140°N 8.9031°E / 45.8140; 8.9031 (Cagno Substation) ; 45.8647°N 8.9717°E / 45.8647; 8.9717 (Mendrisio Substation)

United Kingdom
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Beatrice Wind Farm, Moray Firth – Blackhillock substation, Moray[1] 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[2] 132 kV 51.92663°N 0.90307°W
Bradford, Bradford West – Kirkstall substations (line partly underground) Yorkshire[3] 275 kV 53.82822°N 1.77895°W
Brechfa Forest West onshore wind farm, Carmarthenshire[4] 2018 132 kV 51°59′00″N 04°09′50″W
Burbo Bank offshore wind farm, Liverpool Bay – onshore substation, Denbighshire[5] 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[6] 113[7] 2019[8] 320 kV 58.4485°N 3.4376°W ; 57.4984°N 2.9883°W
Dinorwig power station – Pentir, Gwynedd[9][10] 1984 400 kV 53° 7′ 7″ N, 4° 6′ 50″ W ;

53.1723°N 4.1694°W

Dudgeon offshore wind farm – Necton substation, Norfolk[11] 2017 132kV 53.249°N 1.39°E ; 52.65838°N 0.80156°E
East Anglia one offshore wind farm – Bramford substation, Suffolk[12] >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[13] 0.2 2010 275 kV 55.92991°N 3.18669°W
Fawley Tunnel (Fawley – Chilling), Hampshire[14] 3.2 1966 400 kV 50.826°N 1.314°W
Fawley – Langley, Hampshire[15] 132 kV 50.81551°N 1.34029°W
Greater Gabbard and Galloper Array offshore wind farms – Sizewell, Suffolk[16] >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[17] 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] >18 2015 132 kV 53°27′N 3°35′W ;

53.26038°N 3.50465°W

Hornsea offshore wind farm – Killingholme, North East Lincolnshire[19] 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[20] 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[21] 2005 33 kV 51°27′36″N 1°5′24″E ; 51.3548°N 1.08534°E
Laleham, Surrey – Ealing – Willesden, West London[22] 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[23] 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)[24] 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[25] 12 2025 (under construction) 400 kV 51.42784°N 0.18237°W ; 51.48082°N 0.06239°W
London, New Cross – Hurst[25] 18 2026  (under construction) 400 kV 51.48082°N 0.06239°W ; 51.43236°N 0.1541°E
London, Hurst – Crayford[25] 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[26] 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)[27] 63.5 2001 275 kV DC 55.07313°N 4.98188°W ; 54.83746°N 5.7806°W
Orrmonde offshore wind farm – Heysham, Lancashire[28] 2012 132 kV 54°6′N 3°24′W ; 54.0331°N 2.87913°W
Race Bank offshore wind farm – Walpole substation, Norfolk[29] 2018 250 kV 53.276°N 0.841°E ; 52.73139°N 0.2281°E
Rampion offshore wind farm – Bolney, Sussex[30] 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[31] 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[32] 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
UK high voltage submarine connections to/from other countries
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
BritNed (Isle of Grain, Kent – Maasvlakte, Netherlands)[33] 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)[34] 263 2012 ±200 V 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)[35] 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)[36] 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)[37] 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)[38] 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)[39] 730 2021 (under construction) ±515 kV DC 55.14364°N 1.54245°W ; 59.4965°N 6.6984°E

Canada
Facility Length (km) Year of inauguration Voltage Coordinates of endpoints
Trincomali Channel, AC-Cable??280 kV48.8794°N 123.4027°W / 48.8794; -123.4027 (Parker Island Cable Terminal) ; 48.8632°N 123.4525°W / 48.8632; -123.4525 (Salt Spring Island Cable Terminal)
Galiano Island-Canadian Mainland, AC-Cable??280 kV48.9186°N 123.4040°W / 48.9186; -123.4040 (Galiano Island Cable Terminal) ; ?
Malaspina Strait Cable??500 kV49.6741°N 124.2035°W / 49.6741; -124.2035 (Cockburn Cable Terminal) ; 49.6301°N 124.2842°W / 49.6301; -124.2842 (Texada Island Cable Terminal East)
Texada Island-Vancouver Island Cable??500 kV49.5903°N 124.3582°W / 49.5903; -124.3582 (Texada Island Cable Terminal West) ; 49.4217°N 124.6431°W / 49.4217; -124.6431 (Nile Creek Cable Terminal)

References
  1. "Beatrice Offshore Windfarm". Beatrice Offshore Windfarm. Retrieved 1 April 2020.
  2. "Open Infrastructure Map". Open Infrastructure Map. Retrieved 1 April 2020.
  3. "Open Infrastructure Map". Open Infrastructure Map. Retrieved 2 April 2020.
  4. "Brechfa Forest West Onshore Wind Farm". Innogy. Retrieved 31 March 2020.
  5. "Burbo Bank Extension". 4C Offshore. Retrieved 31 March 2020.
  6. "Caithness-Moray Transmission Project" (PDF). SSE. Retrieved 1 April 2020.
  7. "Caithness - Moray". Caithness - Moray. Retrieved 2019-01-12.
  8. Keane, Kevin (2019-01-11). "Major subsea electricity link completed". BBC News. Retrieved 2019-01-12.
  9. "Open Infrastructure Map". Open Infrastructure Map. Retrieved 31 March 2020.
  10. "Electric Mountain - Dinorwig power station". Electric Mountain. Retrieved 31 March 2020.
  11. "Dudgeon Offshore Wind Farm". Dudgeon Offshore Wind Farm. Retrieved 31 March 2020.
  12. "East Anglia One". Scottish Power. Retrieved 31 March 2020.
  13. "Archived copy" (PDF). Archived from the original (PDF) on 2014-10-19. Retrieved 2014-10-14.CS1 maint: archived copy as title (link)
  14. "Open Infrastructure Map". Open Infrastructure Map. Retrieved 31 March 2020.
  15. "Open Infrastructure Map". Open Infrastructure Map. Retrieved 31 March 2020.
  16. "Greater Gabbard". SSE. Retrieved 31 March 2020.
  17. "Gunfleet Sands wind farm". Power Technology. Retrieved 31 March 2020.
  18. "Gwynt y Mor wind farm". Innogy. Retrieved 31 March 2020.
  19. "Orsted Our wind farms". Orsted. Retrieved 31 March 2020.
  20. "Open Infrastructure Map". Open Infrastructure Map. Retrieved 1 April 2020.
  21. "Kentish Flats". Vattenhall. Retrieved 31 March 2020.
  22. "Open Infrastructure Map". Open Infrastructure Map. Retrieved 31 March 2020.
  23. "London Array wind farm". Power Technology. Retrieved 31 March 2020.
  24. "Energy for London". Energy for London. Retrieved 1 April 2020.
  25. "London Power Tunnels". London Power Tunnels. Retrieved 31 March 2020.
  26. "Open Infrastructure Map". Open Infrastructure Map. Retrieved 1 April 2020.
  27. "Mutual Energy". Mutual Energy. Retrieved 30 March 2020.
  28. "Ormonde Wind Farm". Vattenfall Ormonde. Retrieved 31 March 2020.
  29. "Race Bank offshore wind farm". Orsted. Retrieved 31 March 2020.
  30. "The UK south coast's first offshore wind farm". Rampion Offshore. Retrieved 31 March 2020.
  31. "Sheringham Schoal". Sheringham Schoal. Retrieved 31 March 2020.
  32. The Electricity Council (1987). Electricity supply in the United Kingdom: a Chronology. London: The Electricity Council. p. 99. ISBN 085188105X.
  33. "BritNed". BritNed. Retrieved 30 March 2020.
  34. EirGrid. "Interconnection". Interconnection. Retrieved 30 March 2020.
  35. "Channel Cable". Channel Cable. Retrieved 30 March 2020.
  36. "Interconnexion". 4C Offshore. Retrieved 30 March 2020.
  37. "Manx Utilities". Manx Utilities. Retrieved 1 April 2020.
  38. "Interconnected to the heart of Europe's electricity market". Nemolink. Retrieved 30 March 2020.
  39. "North Sea Link". North Sea Link. Retrieved 30 March 2020.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.