HVDC projects by type and power

= HVDC Light Project

Bulk power transmissions

Project	MW	Remarks
Jinping - Sunan, China	7 200	800 kV UHVDC. The most powerful transmission in the world!
Xiangjiaba - Shanghai, China	6 400	800 kV UHVDC
Itaipu, Brazil	6 300	Two bipoles, 600 kV DC.
North East - Agra, India	6 000	Multi-terminal 800 kV UHVDC
Rio Madeira, Brazil	3 150	World's longest transmission - over 2,500 km
Pacific Intertie, USA	3 100
Hulunbeir-Liaoning , China	3 000
Three Gorges - Changzhou, China	3 000
Three Gorges - Shanghai, China	3 000
Three Gorges - Guangdong, China	3 000
Intermountain, USA	2 400
Quebec - New England, Canada - USA	2 000	Multi-terminal
Nelson River 2, Canada	2 000
Cahora Bassa, Mozambique - South Africa	1 920
Rihand-Delhi, India	1 500
Chandrapur - Padghe, India	1 500
New Zealand DC Hybrid Link	1 240	Mercury arc + thyristor
Gezhouba - Shanghai, China	1 200
CU Project, USA	1 000
Inga Shaba, DR Congo	560
Leyte - Luzon, Philippines	440
Caprivi Link Interconnector, Namibia	300	HVDC Light with overhead line

Cable projects

Project	MW	Remarks
Fenno-Skan, Sweden - Finland	1 300
New Zealand DC Hybrid Link	1 240	Mercury arc + thyristor
SAPEI, Italy	1 000
Skagerrak 1-3, Norway - Denmark	940
DolWin2 HVDC Light, Germany	900	Sea and land cable. The world's largest offshore HVDC system.
DolWin1 HVDC Light, Germany	800	Sea and land cable
Skagerrak 4, Norway - Denmark	700	500 kV, the first HVDC Light to run in a bipolar configuration with an HVDC Classic link
NordBalt, Lithuania - Sweden	700	Sea and land cables. The longest HVDC Light cable connection.
NorNed, Norway - Netherlands	700
Baltic Cable, Sweden - Germany	600
Kontek, Denmark - Germany	600
Swepol, Sweden - Poland	600
East West Interconnector, Ireland - UK	500	Sea and land cable
Italy-Greece	500
Leyte - Luzon, Philippines	440
BorWin1, Germany	400	Sea and land cable
Estlink, Estonia - Finland	350	Sea and land cable
CrossSound, USA	330
Vancouver Island, Canada	312	Mercury arc
Konti-Skan 2, Sweden - Denmark	300
Gotland 2 + 3, Sweden	260
Murraylink, Australia	220	Land cable
Terranora interconnector, Australia	180	Land cable
Troll A 3&4 offshore, Norway	100
Troll A 1&2 offshore, Norway	88
Valhall offshore, Norway	78
Gotland HVDC Light, Sweden	50	Land cable
Tjaereborg, Denmark	7	Land cable

Back-to-back projects

Project	MW	Remarks
Garabi, Brazil	2 200	CCC
Outaouais, Canada	1 250
Châteauguay upgrade, Canada	1 000
Rio Madeira back-to-back, Brazil	800
Lingbao II (Extension project), China	750
Durnrohr, Austria	550
Vindhyachal, India	500
Vizag II, India	500
Sakuma, Japan	300	Mercury arc (rebuilt)
Blackwater, USA	200
Highgate, USA	200
Rapid City, USA	200	CCC
Sharyland Asynchronous Tie,USA	150
Broken Hill, Australia	40
Eagle Pass, USA	36

Test project

Project	MW	Remarks
Hällsjön, Sweden	3	First HVDC Light

HVDC system upgrades

Project	MW	Remarks
Pacific Intertie Sylmar Refurbishment, USA	3 100	Re-building of the Sylmar East station from 1 100 to 3 100 MW.
IPP Upgrade, USA	2 400	Control & protection (MACH2), valve cooling and additional AC filters
Cahora Bassa, Apollo upgrade, South Africa	1 920	Upgrade of: valves, filters and control system, etc.
CU Project, USA	1 000	Control & protection (MACH2)
Châteauguay, Québec, Canada	1 000	Control & protection (MACH2)
Inga-Kolwezi Upgrade, DR Congo	560	Control and protection (MACH2), thyristor valves and HV apparatus
Fenno-Skan 1 Upgrade	500	Control & protection (MACH2)
Square Butte , USA	500	Control & protection (MACH2)
Skagerrak 1&2, Norway - Denmark	500	Control & protection (MACH2)
Blackwater, USA	200	Upgrade of valve cooling and control & protection (MACH2) systems
Highgate Refurbishment	200	Upgrade of valve cooling and control & protection (MACH2) systems

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Mike Bahrman