The 2 Â 1,049 km double-circuit line is the
longest UHVAC line in the world. Part of the
north China UHV AC/DC grid, the link has
helped Shaanxi and Shanxi develop their energy
bases to supply power to other regions. It has
also increased the capacity of the north China
power grid and effectively reduced power shortages in central and east China.
Table 13 UHV transmission in China (up to June 2017)
DC Project
Starting
point
Destination Capacity
(MW)
Voltage
level
(kV)
Construction
commencement
date
Operation
date
Length
(km)
1
Jinping—South
Jiangsu
Sichuan
Jiangsu
7,200
±800
2009
2012
2,100
2
Xiluodu—West
Zhejiang
Sichuan
Zhejiang
8,000
±800
2012
2014
1,700
3
Xiangjiaba—
Shanghai
Sichuan
Shanghai
6,400
±800
2007
2010
1,907
4
Kumul—
Zhengzhou
Xinjiang
Henan
8,000
±800
2012
2014
2,210
5
East Ningxia—
Shaoxing
Ningxia
Zhejiang
8,000
±800
2015
2016
1,720
6
Jiuquan—Hunan
Gansu
Hunan
8,000
±800
2015
2017
2,383
7
North Shanxi—
Jiangsu
Shanxi
Jiangsu
8,000
±800
2015
2017
1,119
8
Xilin Gol League
—Taizhou
West
Inner
Mongolia
Jiangsu
10,000
±800
2015
2017
1,628
9
Shanghaimiao—
Shandong
West
Inner
Mongolia
Shandong
10,000
±800
2015
2017
1,240
10
Chuxiong—
Huidong
Yunnan
Guangdong 5,000
±800
2006
2010
1,412
11
Pu’er—Jiangmen
Yunnan
Guangdong 5,000
±800
2011
2015
1,400
AC Project
Starting
point
Destination Capacity
(MW)
Voltage
level
(kV)
Construction
commencement
date
Operation
date
Length
(km)
1
Southeast Shanxi
—Nanyang—
Jingmen
Shanxi
Hubei
5,000
1,000
2006
2009
1 Â 654
2
Anhui—East China Anhui
East China 6,000
1,000
2011
2013
2 Â 656
3
North Zhejiang—
Fuzhou
Zhejiang
Fujian
3,000
1,000
2013
2014
2 Â 603
4
Xilingol League—
Shandong
West
Inner
Mongolia
Shandong
7,000
1,000
2014
2016
2 Â 730
5
West Inner
Mongolia—South
Tianjin
West
Inner
Mongolia
Tianjin
6,000
1,000
2015
2016
2 Â 608
6
Huainan—Nanjing
—Shanghai
East China Ring Grid
6,000
1,000
2014
2016
2 Â 738
7
Yuheng—Weifang Shaanxi
Shandong
6,000
1,000
2015
2017
2 Â 1,048
362
S. Zifeng and N. Dickens