2. China has given preliminary approval to build an ultra-high voltage (UHV) power line to send large volumes of electricity from the coal-rich northwestern Xinjiang region to energy-hungry east China. These lines could have potential power transportation capacity of some 20 gigawatts. China is the only country in the world with plans to build large UHV power line networks, with SGCC alone planning to earmark more than 500 billion yuan ($77 billion) to build 40,000 km of such lines before the end of 2015.
But some industry officials have objected to the UHV power lines, especially alternating current lines, citing concerns including supply security, pollution, economic viability and competition.
China has three UHV lines in operation, two run by the SGCC and one by the China Southern Power Grid Corp.
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