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 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:
Line status:

Transmission lines

Africa


Converter
station 1
Converter
station 2




Type
Remarks

Cahora BassaMozambique - Songo
South Africa - Apollo
1420
53319201979ThyrFirst HVDC with voltage above 500 kV
ABB refurb 2013-2014
Inga-ShabaCongo, The Democratic Republic of the - Kolwezi
Congo, The Democratic Republic of the - Inga
1700
5005601982ThyrUpgraded in 2014
Supplier: ABB, GE
Caprivi LinkNamibia - Gerus
Namibia - Zambezi
950
3503002010IGBTSupplier: ABB
Ethiopia–Kenya HVDC InterconnectorEthiopia - Wolayta
Kenya - Suswa
1045
50020002019Thyr-

Australia and Oceania

Asia

Converter
station 1
Converter
station 2




Type
Remarks

Hokkaido - HonshuJapan - Hakodate
Japan - Kamikita
193
2503001979ThyrSupplier: ABB, Hitachi, Toshiba
Zhou ShanChina - Ningbo
China - Gao Tongge
54
100501982Thyr
Gezhouba - ShanghaiChina - Gezhouba
China - Nan Qiao
1046
50012001989ThyrPower line shares pylons of HVDC Hubei - Shanghai in most part of its track
Supplier: ABB, Siemens
HVDC C&P System Refurbished by NR Electric
Sileru-BarsoorIndia - Sileru
India - Barsoor
196
2001001989ThyrSupplier: BHEL
Ekibastuz-TambovKazakhstan - Ekibastuz
Russia - Tambov
2414
7506000-ThyrConstruction sites abandoned around 1990 owing to collapse of Soviet Union, line was never completed
Rihand-DelhiIndia - Rihand
India - Dadri
814
50015001990ThyrSupplier: ABB, BHEL
Haenam-ChejuSouth Korea - Haenam
South Korea - Jeju
101
1803001996ThyrSupplier: Alstom
Leyte - LuzonPhilippines - Ormoc, Leyte
Philippines - Naga, Camarines Sur
451
3504401998ThyrSupplier: ABB, Marubeni
HVDC C&P System Refurbished by NR Electric
Chandrapur-PadgheIndia - Chandrapur
India - Padghe
752
50015001999ThyrSupplier: ABB
Kii ChannelJapan - Anan
Japan - Kihoku
100
25014002000ThyrSupplier: Hitachi, Toshiba, Mitsubishi
Tian-GuangChina - Tianshengqiao
China - Beijiao
960
50018002001ThyrSupplier: Siemens
HVDC C&P System Refurbished by NR Electric
Thailand-MalaysiaThailand - Khlong Ngae
Malaysia - Gurun
110
3003002001ThyrSupplier: Siemens
ShengsiChina - Shengsi
China - Anabasis Sizu
66.2
50602002Thyr-
Talcher-KolarIndia - Talcher, Odisha
India - Kolar, Karnataka
1450
50025002003ThyrSupplier: Siemens
Three Gorges - ChangzhouChina - Longquan
China - Zhengping
890
50030002003ThyrFrom north bank of Three Gorges to Zhengping, 200 km from Shanghai in the East grid
Supplier: ABB, Siemens. Sharing of grounding electrode at Chujiahu with HVDC Hubei-Shanghai
Guizhou - Guangdong IChina - Anshun, Guizhou
China - Zhaoqing, Guangdong
980
50030002004ThyrSupplier: Siemens
Three Gorges - GuangdongChina - Jingzhou
China - Huizhou
940
50030002004ThyrSupplier: ABB
Three Gorges - ShanghaiChina - Yidu
China - Shanghai
1060
50030002006ThyrSupplier: ABB
Guizhou - Guangdong IIChina - Xingren
China - Shenzhen
1200
50030002007ThyrSupplier: Siemens, Sharing of grounding electrode at Linwu with HVDC Yunnan - Guangdong
Ballia - BhiwadiIndia - Ballia
India - Bhiwadi
800
50025002010ThyrSupplier: Siemens
Baoji - DeyangChina - Baoji
China - Denyang
574
50030002010Thyr???
Hulunbeir - LiaoningChina - Hulunbeir
China - Shenyang
920
50030002010ThyrSupplier: ABB
Xiangjiaba-ShanghaiChina - Fulong
China - Fengxia
1980
80064002010ThyrSupplier: ABB
Yunnan - GuangdongChina - Yunnan province
China - Zengcheng
1418
80050002010ThyrSupplier: Siemens, Sharing of grounding electrode at Linwu with HVDC Guizhou - Guangdong II
Hubei - ShanghaiChina - Jingmen
China - Fenjing
970
50030002011ThyrPower line shares pylons of HVDC Gezhouba - Shanghai in most part of its track, sharing of grounding electrode at Chujiahu with HVDC Shanghai-Changzhou???
Nanhui Wind Farm IntegrationChinaChina8.4
30182011IGBTSupplier: C-EPRI Electric Power Engineering Co.,Ltd
Ningdong - ShandongChina - Yinchuan
China - Qingdao
1335
66040002011ThyrSupplier:Alstom; C-EPRI Electric Power Engineering Co.,Ltd
Qinghai - TibetChina - Geermu
China - Lhasa
1038
40015002011ThyrPowerline reaches altitudes up to 5300 m above sea level
Supplier: CET, SGCC
Mundra - HaryanaIndia - Mundra
India - Mohindergarh 960
50025002012ThyrSupplier: Siemens
Dalian City InfeedChina - Dalian NorthChina - Dalian South43
32010002013IGBT
Jinping - SunanChina - Jinping
China - Suzhou
2090
80072002013ThyrSupplier: ABB, C-EPRI Electric Power Engineering Co.,Ltd
ACC Provided by NR Electric in Jinping Converter Station
Nanao Multi-terminal VSC HVDCChina - Sucheng
China - Jinniu
; China - Qingao
32
200/100/502013IEGT/IGBTSEPRI is technically responsible for the entire project. Multiple suppliers are involved: three different VSC HVDC valve suppliers, two different HVDC land/sea cable suppliers and three different control & protection system/equipment suppliers.
Nuozhadu - GuangdongChina - Nuozhadu
China - Jiangmen
141380064002013Thyr???
Xiluodo - GuangdongChina - Zhaotong
China - Conghua
1286
50064002013Thyr???
Hami - ZhengzhouChina-Hami
China-Zhengzhou
219280080002014ThyrSupplier: C-EPRI Electric Power Engineering Co.,Ltd
HVDC C&P System Provided by NR Electric		???
Jindo - JejuSouth Korea - Jindo
South Korea - Jeju
105
2504002014ThyrSupplier: Alstom, LS Cable and System.
Xiluodo - West ZhejiangChina - Xiluodu
China - Jinghua
168080080002014ThyrSupplier:C-EPRI Electric Power Engineering Co.,Ltd???
Zhoushan Multi-terminal DC InterconnectionChina - Zhoushan
China - Qushan
; China - Daishan
; China - Yangshan
; China - Sijiao
134
4002014IGBTSupplier:C-EPRI Electric Power Engineering Co.,Ltd
HVDC C&P System Provided by NR Electric
Humeng - ShandongChinaChina80064002015Thyr???
Irkutsk - BeijingRussia - IrkutskChina - Beijing80064002015Thyr???
Champa-KurukshetraIndia - ChampaIndia - Kurukshetra1365
8002016Thyr2 Bipoles. Supplier: Alstom
Goupitan - GuangdongChinaChina30002016Thyr???
Jinsha River II - East ChinaChinaChina80064002016Thyr???
North-East AgraIndia - Agra
India - Biswanath
1728
80060002016ThyrWill supply electricity to serve 90 million people
Bipole Ultra high voltage, multiterminal
Supplier: ABB
Inner Mongolia - LinyiChina - Shizhustan
China - Linyi
80064002017Thyr???
Jiuquan- XiangtanChina - Qiaowan
China - Xiangtan
80064002017ThyrSupplier:C-EPRI Electric Power Engineering Co.,Ltd
HVDC C&P System Provided by NR Electric		???
North Shanxi - NanjingChina - North Shanxi
China - Nanjing
2017Thyr???
Northwest Yunnan - GuangdongChina - Xinsong
China - Dongfang
195380050002018Thyr???
Xilin Hot - TaizhouChina - Xilin Hot
China - Taizhou
800100002017Thyr???
Xinjiang - AnhuiChina - Wuicaiwan
China - Anhui
33241100120002019Thyr???
Yinchuan - ZhujiChina - Yinchuan
China - Zhuji
80064002017ThyrHVDC C&P System Provided by NR Electric???
Dianxibei - GuangdongChina-LijiangChina-Zhengzhen1928/080050002017ThyrSupplier: C-EPRI Electric Power Engineering Co.,Ltd???
Jinsha River II - FujianChinaChina80064002018Thyr???
Humeng - LiaoningChinaChina80064002018Thyr???
Rudong Offshore Wind ConnectorChina - Jiangsu RudongChina - Jiangsu Rudong Platform100
40011002022IGBTSuppliers: XJ and RXHK for vavle, ZTT Cable
Sheyang Offshore Wind ConnectorChina - Jiangsu SheyangChina - Jiangsu Sheyang Platform83
25011002022IGBT
Zhangbei DC Grid ProjectChina - BeijingChina - Zhangbei
China - Fengning
China - Kangbao
495
5003000/3000/1500/15002021IGBTFour terminal DC Grid
Wudongde multi-terminal UHVDC demonstration projectChina - YunnanChina - Guangxi
China - Guangdong		1489
8008000/3000/50002021Thyr/IGBTThree terminal Hybrid DC system, Yunnan, Guangdong and Guangxi
Raigarh-PugalurIndia - Raigarh
India - Pugalur
1830
80060002019ThyrSupplier: ABB
New HVDC Hokkaido-HonshuJapan - Imabetsu
Japan - Hokuto
122
2503002019IGBT

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 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.

North America


Converter
station 1
Converter
station 2




Type
Remarks

HVDC Mechanicville–SchenectadyUSA - Mechanicville,NY
USA - Schenectady, NY37
1251932MercExperimental, frequency conversion 40 to 60 Hz
Dismantled after WW II
Vancouver Island 1Canada - Delta, BC
Canada - North Cowichan, BC
75
2603121968MercSupplier: ASEA
Pacific DC IntertieUSA - Celilo, OR
USA - Sylmar, CA,
1362
±50031001970ThyrTransmission voltage ±400 kV until 1984
Maximum transmission power 1440 MW until 1982
From 1982 to 1984 1600 MW
From 1984 to 1989 2000 MW
Merc replaced by Thyr in 2004
Original supplier: ASEA, GE
In 1989 upgraded by ABB
In 2004 upgraded by ABB and Siemens
Nelson River Bipole 1Canada - Gillam, Manitoba
Canada - Rosser, Manitoba
895
463.518541971ThyrUsed the largest mercury arc rectifiers ever built
Original supplier: English Electric.
In 1992/1993, Pole 1 upgraded to Thyr by Alstom.
In 2004, Pole 2 upgraded to Thyr by Siemens.
Vancouver Island 2Canada - Delta, BC
Canada - North Cowichan, BC
75
2803701977ThyrSupplier: GE
Square ButteUSA - Center, ND
USA - Adolph, MN
749
2505001977ThyrSupplier: GE In 2004 Control system upgrade by ABB
Nelson River Bipole 2Canada - Sundance, Manitoba
Canada - Rosser, Manitoba
940
50020001978-1985ThyrSupplier: Siemens
CUUSA - Underwood, ND

USA - Rockford, MN

687
40010001979ThyrSupplier: ABB In 2004, control system upgrade by ABB
Path 27USA - Intermountain, UT
USA - Adelanto, CA
785
±50019201986Thyr
Quebec - New England TransmissionCanada - Radisson, QC

Canada - Nicolet, QC
;
USA - Ayer, MA
1105
45022501991Thyr3 terminals
Converter stations near Windsor, QC and Monroe, NH were decommissioned in 2007.
Supplier: ABB
Cross Sound CableUSA - New Haven, CT
USA - Shoreham, Long Island, NY
40
1503302002IGBTBuried underwater cable
Supplier: ABB
Neptune CableUSA - Long Island NY
USA -Sayreville, NJ
105
5006602007ThyrSupplier: Siemens
Trans Bay CableUSA - Pittsburg, CA
USA - San Francisco, CA
85
2004002010IGBTFirst HVDC system using Modular Multi-Level Converter
Supplier: Siemens, Pirelli
Eastern Alberta Transmission LineCanada – Newell, AB Canada – Heathfield, AB 485 50010002015/2016ThyrSupplier: Siemens
Western Alberta Transmission LineCanada – Genesee, AB Canada – Langdon, AB 350 50010002015ThyrSupplier: Siemens
Nelson River Bipole 3Canada - Keewatinohk, Manitoba
Canada - Riel, Manitoba
1324
50020002018ThyrSupplier: Siemens
Labrador-Island LinkCanada - Muskrat Falls, NLCanada - Soldiers Pond, NL1135
3509002017ThyrDrilling for cable landfall began in 2014.
Supplier: Alstom Grid
Maritime LinkCanada - Bottom Brook, NL Canada - Woodbine, NS
360
2005002017IGBTRight-of-way clearing began in 2014.
Supplier: ABB
Plains & Eastern Clean LineUSA - Texas County, OKUSA - Shelby County, TN1207
6004000ThyrApproved March 2016
New England Clean Power LineUSA - Alburgh, VTUSA - Ludlow, VT248
32010002020
Îles-de-la-Madeleine Cable ConnectionCanada - Percé, QCCanada - Cap-aux-Meules, QC225 ?802025?Buried undersea and underground
Juan de Fuca Cable ProjectUSA - Port Angeles, WA Canada - Victoria, BC 35
150550?IGBTBuried undersea and underground
Supplier: ABB
Rock Island Clean LineUSA - O'Brien County, IAUSA - Grundy County, IL805
6003500?ThyrSupplier: Siemens
TransWest ExpressUSA – Sinclair, WYUSA – Boulder City, NV1165
6003000?Final EIS expected in April 2015.
Grain Belt ExpressUSA - Ford County, KSUSA - Sullivan County, IN750
6003500?

South America


Converter
station 1
Converter
station 2




Type
Remarks

Itaipu 1Brazil - Foz do Iguaçu, Paraná
Brazil - São Roque, São Paulo
785
60031501984ThyrSupplier: ABB
Itaipu 2Brazil - Foz do Iguaçu, Paraná
Brazil - São Roque, São Paulo
805
60031501987ThyrSupplier: ABB
Rio MadeiraBrazil, Porto Velho
Brazil, Araraquara
2375
60071002013ThyrThe longest transmission link in the world
Suppliers: ABB, Alstom
Xingu-EstreitoBrazil - Anapu, ParáBrazil - Ibiraci, Minas Gerais2076 80040002017Thyr

Back to back


Location



Type
Remarks

-
Carnegie Steel Company B2BUSA - Pittsburgh, Pennsylvania???Mercbuilt for an interconnection between 60 Hz-utility system and a 25 Hz System, dismantled-
Sakuma B2BJapan - Sakuma
1253001965Mercreplaced in 1993 by new converter using light-triggered thyristors-
Eel River B2BCanada - Eel River, NB
803201972Thyrlife extension project 2014 -
David A. Hamil B2BUSA - Stegall, Nebraska
±501001977ThyrSupplier: GE -
Shin Shinano B2BJapan - Shin Shinano
1256001977ThyrSupplier: Toshiba, Hitachi-
Acaray B2BParaguay - Ciudad de Este
25.6501981Thyr -
Vyborg B2BRussia - Vyborg
±8510651982Thyrextended up to 1420 MW in 2001-
Dürnrohr B2BAustria - Dürnrohr
1455501983Thyrshut down in October 1996, dismantled in 2007-
Artesia, New Mexico B2BUSA - Artesia, NM
822001983Thyr -
Chateauguay B2BCanada – Châteauguay, QC
14010001984Thyr Control system upgrade by ABB in 2009
Oklaunion B2BUSA - Oklaunion, TX
822001984ThyrABB replacement in 2014
Blackwater, New Mexico B2BUSA - Blackwater, NM
572001984Thyr Valve cooling and control systems upgrade by ABB in 2009-
Madawaska, Quebec B2BCanada - Dégelis, QC
1403501985Thyr -
Miles City, Montana B2BUSA - Miles City, MT
822001985Thyr -
Highgate, VT B2BUSA - Highgate, VT
562001985ThyrRefurbishment by ABB in 2012,
Uruguaiana B2BBrazil - Uruguaiana
17.953.91986Thyr
Broken Hill B2BAustralia - Broken Hill
8.33401986Thyr -
Virginia Smith B2BUSA - Sidney, NE
502001988Thyr -
Vindhyachal B2BIndia - Vindhyachal
1765001989Thyr -
McNeill B2BCanada - Mc Neill, AB
421501989ThyrSupplier: Alstom-
Wolmirstedt B2BGermany - Wolmirstedt
160600Thyrconstruction work was stopped after reunification, static inverter hall is today part of a recycling yard-
Etzenricht B2BGermany - Etzenricht
1606001993Thyrshut down in October 1995, dismantled in 2009-
Vienna-Southeast B2BAustria - Vienna
1426001993Thyrshut down in October 1996, dismantled in 2007-
Chandrapur B2BIndia - Chandrapur
2052x5001998ThyrSupplier: Alstom-
Welsh HVDC Converter Station B2BUSA - Titus County, TX
1626001998Thyr -
Garabi HVDCBrazil - Garabi
±7022001999ThyrBrazil-Argentina Interconnection. Supplier: ABB In 2002, the second phase 'Garabi 2' was supplied by ABB.-
Vizag 1India - Visakhapatnam Gazuwaka
2055001999ThyrSupplier: Alstom-
Minami-Fukumitsu B2BJapan - Minami - Fukumitsu
1253001999Thyr -
Rivera B2BUruguay - Rivera
22702000ThyrSupplier: Alstom-
Eagle Pass, Texas B2BUSA - Eagle Pass, TX
15.9362000IGBT -
Sasaram B2BIndia - Sasaram
2055002003ThyrSupplier: Alstom-
Rapid City DC Tie B2BUSA - Rapid City, SD
132002003Thyr-
Vizag 2India - Visakhapatnam
1765002005Thyr Installed at Gazuwaka. Supplier:ABB. This is similar in specs to Vizag I and connects the Eastern and Southern grids.-
Lingbao B2BChina - Lingbao
1683602005Thyr Supplier: NR, Extension project 2010: Supplier: ABB;C-EPRI Electric Power Engineering Co.,Ltd
Lamar Co., Colorado B2BUSA - Lamar, CO
63.62102005ThyrSupplier: Siemens; Combination of B2B HVDC & Grid Power Flow Controller -
Higashi-Shimuzu B2BJapan - Shimuzu
1253002006Thyr -
Sharyland B2BUSA - Mission, TX
211502007Thyr -
Al Fadhili B2BSaudi Arabia - Al Fadhili
2223x6002008ThyrUsed mainly for Dynamic Reserve Power Sharing rather than economic energy transfer. Supplier: Alstom-
Outaouais B2BCanada - Buckingham, QC
3152x6252009Thyr Expected completion 2009. Supplier:ABB-
Heihe B2BChina - Heihe
±1257502011Thyr Supplier: NR-
Gaoling B2BChina - Gaoling
±50015002008Thyr-
Shandong - East B2BChina12002011Thyr--
Melo B2BUruguay - Melo
±795002011ThyrSupplier:Alstom-
North - Central B2BChina10002012Thyr--
Rio Madeira B2BBrazil – Porto Velho
1008002013ThyrSupplier: ABB-
Ridgefield B2B USA - Ridgefield, NJ
1856602013ThyrSupplier: Siemens-
Bheramara B2BBangladesh – Bheramara 1585002013Thyr-
Akhaltsikhe B2BGeorgia - Akhaltsikhe
967002013ThyrSupplier: Siemens-
Mackinac B2BUSA - Saint Ignace, MI
702002014IGBTSupplier: ABB-
Railroad DC TieUSA - Mission, TX
211502014Thyr -
Alytus B2BLithuania - Alytus
±705002015Thyr-
Mogocha B2BRussia - Mogocha
±322x1002017IGBT -
Yu - E B2BChina-ChongQing, China-Hubei±4204x12502017VSC-HVDCSupplier: XJ Group Corporation, C-EPRI Electric Power Engineering Co.,Ltd, Rongxin Power Electronic Co.,Ltd.
Khani B2BRussia - Khani
±322x1002019IGBT -
Bentwisch B2BGermany - Bentwisch
±1404102019IGBT --
Tres Amigas SuperStationUSA - Clovis, NM?5000?IGBT-

Maps

Europe

  1. Shetland HVDC Connection
  2. Caithness Moray HVDC
  3. Western Isles HVDC
  4. NorthConnect
  5. NSN Norway Kvilldal - UK Blyth, 1.4 GW under construction
  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. 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, 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
  41. HVDC Italy–Corsica–Sardinia: "SACOI" - Codrongianos, Sardinia, Italy - Lucciana, Corsica, France - Suvereto, Italy
  42. SAPEI, Sardinia - Italian mainland
  43. HVDC MON.ITA Project
  44. HVDC Italy-Greece: Arachthos, Greece - Galatina, Italy
  45. EuroAsia Interconnector
  46. EuroAfrica Interconnector