List of HVDC projects

This is a list of notable high-voltage direct-current power transmission projects.

HVDC projects for long-distance transmission have two (or rarely, more) converter stations and a transmission line interconnecting them. Generally overhead lines are used for interconnection, but an important class of HVDC projects use submarine power cables. A back-to-back station has no transmission line and joins two separate AC grids at a single point. Historical HVDC systems used the Thury system of motor-generators but these have all been made obsolete by later developments such as mercury-arc valves (now also obsolete), thyristors, and IGBT power transistors.

Legend

Converter technology:

• Thury = Series-connected generators as designed by René Thury
• Merc = Mercury-arc valve rectifier and inverter
• Thyr = Thyristor rectifier and inverter
• IGBT = Insulated gate bipolar transistor

Line status:

Africa

Australia and Oceania

Asia

Europe

² As of 9 December 2015, LitPol Link started trial operations.
³ Caithness Moray HVDC serves a number of renewable energy sources in the north of Scotland - see map
⁴ Contracts due to be placed in 2016.
⁵ Elia says construction expected to start in late 2017.
⁶ Date is that quoted to support the Shetland Wind Farm that SSE is a part investor in.
⁷ Decision on project expected in 2017 following consultation - see SSE PD reference.

North America

South America

Back to back

Maps

Europe

1. Shetland HVDC Connection
2. Caithness Moray HVDC
3. Western Isles HVDC connection
4. NorthConnect
5. North Sea Link: Kvilldal, Norway – Blyth, UK
6. Eastern HVDC Link
7. Moyle: Auchencrosh, UK – Ballycronan More, Northern Ireland, UK
8. Western HVDC Link
9. East–West Interconnector: Leinster, Ireland – Shotton, Wales, UK
10. Celtic Interconnector
11. FAB Link
12. IFA-2
13. HVDC Cross-Channel: Les Mandarins, France – Sellindge, UK
14. Nemo Link
15. BritNed: UK – Netherlands
16. Aachen Liège Electricity Grid Overlay (ALEGrO)
17. Viking Link
18. HVDC DolWin1, HVDC DolWin2, HVDC DolWin3
19. HVDC SylWin1
20. HVDC HelWin1, HVDC HelWin2
21. HVDC BorWin1, HVDC BorWin2, HVDC BorWin3
22. NorNed: Feda, Norway – Eemshaven, Netherlands
23. NORD.LINK: Germany – Norway
24. Skagerrak 1, 2, 3, and 4: Tjele, Denmark – Kristiansand, Norway
25. Konti-Skan 1 and 2: VesterHassing, Denmark – Stenkullen, Sweden
26. StoreBælt: Fyn, Denmark – Zealand, Denmark
27. Baltic Cable: Lübeck- Herrenwyk, Germany – Kruseberg, Sweden
28. Kontek: Bjæverskov, Denmark – Bentwisch, Germany
29. SydVästlänken
30. SwePol: Stärnö, Sweden – Wierzbięcin (Słupsk), Poland
31. LitPol Link
32. NordBalt
33. HVDC Visby–Näs
34. Gotland: Västervik, Sweden – Ygne, Sweden
35. Fenno-Skan: Rauma, Finland – Dannebo, Sweden, Fenno-Skan 2
36. ÅL-link
37. Estlink: Harku, Estonia – Espoo, Finland
38. Estlink 2
39. Cometa: Valencia, Spain – Mallorca, Spain
40. INELFE Baixas - Santa Llogaia
41. HVDC Italy–Corsica–Sardinia: "SACOI" – Codrongianos, Sardinia, Italy – Lucciana, Corsica, France – Suvereto, Italy (mainland)
42. SAPEI, Sardinia – Italian mainland
43. HVDC MON.ITA Project
44. HVDC Italy-Greece: Arachthos, Greece – Galatina, Italy
45. EuroAsia Interconnector
46. EuroAfrica Interconnector
47. Greenlink
48. France-Italy via Fréjus Road Tunnel
49. ElecLink: via Channel Tunnel
50. INELFE Biscay Gulf
51. NeuConnect: Isle of Grain, UK – Wilhelmshaven, Germany

See also

• Asian Super Grid
• Desertec
• Electrode line
• European super grid
• High-voltage direct current
• List of high voltage underground and submarine cables
• Lyon-Moutiers DC transmission scheme
• Scotland-Norway interconnector
• HVDC converter station
• Super grid
• Submarine power cable
• Transmission tower
• Uno Lamm
• Valve hall

References

Sources

• Vijay K. Sood (31 May 2004). HVDC and FACTS Controllers: Applications Of Static Converters In Power Systems. Springer-Verlag. p. 2. ISBN 978-1-4020-7890-3.