The Gezhouba - Shanghai HVDC project

The first HVDC power transmission in China connects the Gezhouba hydro generation station on the Yangtze river and Shanghai and eastern China.

The 2,175 MW Gezhouba hydro generation station near Yichang on the Yangtze river started its operation in 1981 and was completed in 1988. In 1985 ABB (in consortium with Siemens) received the contract for the HVDC transmission between Gezhouba and Nan Qiao near the city of Shanghai.

The Gezouba converter station.

Valve hall

Main data
Commissioning year:	1989
Power rating:	1 200 MW
No. of poles:	2
AC voltage:	500 kV (both ends)
DC voltage:	±500 kV
Length of overhead DC line:	1 046 km
Main reason for choosing HVDC:	Long distance, network stability, environmental concerns