BEIJING - China on Friday put into operation a project
extending its ultra high voltage (UHV)system to boost
electricity transmission capacity from the country's
energy-rich northernregions to the power-short central
provinces.
After the extension, the 640-km Jindongnan-Nanyang-Jingmen
1,000-kilovolt alternating gridswill double the electricity
transmission capacity and greatly relieve the power shortage
whendemand peaks in winter and summer under the Central
China Grid, according to the State GridCorporation of China
(SGCC), which built the UHV lines.
A total of 120 million kWh of electricity -- equal to 60,000
tons of coal equivalent -- can betransmitted daily through
the grids, which run between the city of Jingdongnan in
northernShanxi province and Nanyang, Henan province
and Jingmen, Hubei province in central China.
As the first such grid designed and built by China, the
UHV grid became operational in January2009 and was
upgraded this year.
In January this year, the SGCC said it planned to invest 500
billion yuan ($78.9 billion) toextend its UHV electricity
transmission lines to six by 2015.
UHV, defined as voltage of 1,000 kilovolts or higher of
alternating current and 800 kilovolts ofdirect current, is
designed to deliver large quantities of power over long
distances with lesspower losses than traditional lines.
Courtesy of (Xinhua)
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