An extensive range of innovative and top-performing systems for High Voltage Direct Current transmission.

ABB has supplied the converter stations in more than 50 of these projects with a total transmission capacity of about 40,000 MW installed in some 95 projects around the world.

High Voltage Direct Current Transmission basic explanations with links to list of world-wide Siemens HVDC power solutions installed to date.

On Dec. 31, 2018, Changji-Guquan ± 1,100 kV UHV Project, the world's first ±1,100 kV UHV DC transmission project, designed and constructed independently by China, successfully began full-voltage power transmission.

Serving as an example, Itaipu is the largest hydroelectric power plant in the world as regards the generation of energy. With 14,000 MW of installed power and HVDC/HVAC transmission systems desserving both Brazil and Paraguay.

The 2,090 km Jinping-Sunan ±800 kV Ultra High Voltage Direct Current (UHVDC) power transmission project with 7,600 MW is currently the most powerful transmission line in the world.

With a Ultra High Voltage Direct Current power rating of 6,400 MW and an overhead line length of 2,071 km, one of the world's longest transmission link, the losses for this long line is reduced to 7%.