Construction of the Longest Link in China's West-to-East Electricity Transmission Project Starts on Feb 3, 2016

The ±800 kV ultra high-voltage (UHV) direct current (DC) line from northwestern Yunnan to Guangdong Province is the longest link with the highest main wire frame in China's West-to-East Electricity Transmission project. [Photo/sasac.gov.cn]

Construction of the longest link in China's West-to-East Electricity Transmission project starts on Feb 3, 2016

The construction of the ±800 kV ultra high-voltage (UHV) direct current (DC) link from northwestern Yunnan to Guangdong Province, a section of China's West-to-East Electricity Transmission project, started on Feb 3, 2016.

Contracted by China Southern Power Grid Co., Ltd. (CSG), the section is the longest part of the entire transmission line and has the highest main wire frame.

It was also the first line of the project to connect to Shenzhen, Guangdong Province.

The project improved clean energy transmission capacity from the western upstream of the Lancang River and the environmental condition of the Pearl River Delta and also promoted continuous and sound development of the regional economy.

About 5 million kW of additional electricity is transmitted out of Yunnan Province through the project.

Twenty billion kWh of power is now transferred to Guangdong, equaling the energy produced by 6.4 million tons of coal while eliminating 16 million tons of carbon dioxide and 123,000 tons of sulfur dioxide emission annually. 

(Executive editor: Wang Ruoting)