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List of HVDC projects

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List of HVDC projects

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

Contents

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 connects two AC grids at different frequencies or phase counts. 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, thyristors, and IGBT power transistors.

Legend

Line type:

  • 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 Transistors
  • Line status:

    Europe

  • List of HVDC links in Lithuania
  • 1 Moyle currently running at 250 MW but being restored to 450 MW in 2016. National Grid says it will be 450 MW to Northern Ireland and 295 MW to Wales.
    2 As of 9 December 2015, LitPol Link started trial operations.
    3 Caithness Moray HVDC will serve 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 2021 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.

    Europe

    1. Iceland – UK (option), 1.1 GW
    2. Moyle: Auchencrosh, UK – Ballycronan More, Northern Ireland, UK
    3. NSN Norway Kvilldal – UK Blyth, 1.4 GW under construction
    4. Viking cable (option): Germany – Norway, 600 MW but NORD.LINK 1.4 GW under construction
    5. Kattegat (option): Norway – Zealand, Denmark; or Norway – southern Sweden
    6. Fenno-Skan: Rauma, Finland – Dannebo, Sweden
    7. Vyborg
    8. Estlink: Harku, Estonia – Espoo, Finland
    9. NorNed: Feda, Norway – Eemshaven, Netherlands
    10. Skagerrak 1, 2, 3, and 4: Tjele, Denmark – Kristiansand, Norway
    11. Konti-Skan 1 and 2: VesterHassing, Denmark – Stenkullen, Sweden
    12. Gotland: Västervik, Sweden – Ygne, Sweden
    13. NordE.ON 1: Diele, Germany – Borkum 2 platform, Germany
    14. StoreBælt: Fyn, Denmark – Zealand, Denmark
    15. (purposely left blank)
    16. SwePol: Stärnö, Sweden – Wierzbięcin (Słupsk), Poland
    17. Baltic Cable: Lübeck- Herrenwyk, Germany – Kruseberg, Sweden
    18. Kontek: Bjæverskov, Denmark – Bentwisch, Germany
    19. East West Interconnector: Leinster, Ireland – Anglesey, Wales, UK. Operational since 2012
    20. BritNed: UK – Netherlands. Operational since April 2011.
    21. HVDC Cross-Channel: Les Mandarins, France – Sellindge, UK
    22. HVDC Italy–Corsica–Sardinia: "SACOI" – Codrongianos, Sardinia, Italy – Lucciana, Corsica, France – Suvereto, Italy (mainland)
    23. Sapei, Sardinia – Italian mainland
    24. Cometa: Valencia, Spain – Mallorca, Spain
    25. Algeria – Spain
    26. Algeria – Sardinia
    27. Tunis – Sicily
    28. Tripoli – Sicily
    29. HVDC Italy-Greece: Arachthos, Greece – Galatina, Italy

    References

    List of HVDC projects Wikipedia


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