The National Development and Reform Commission has approved the construction of the country’s first ultra-high-voltage grid, suggesting that long-time disputes over such projects finally have been settled, the China Business News reported Wednesday, citing the State Grid Corporation of China.
The project that will supply 1,000-kV ultra-high-voltage alternating current (UHV AC) power to Huainan in Anhui province, Nanjing of Jiangsu province, and Shanghai is estimated to cost 26.1 billion yuan (US$4.19 billion) in the initial phase.
Ultra-high-voltage grids have raised safety concerns and doubts over their economic value. However, the State Grid has been pressing for the projects in a bid to cut air pollution from coal-burning power plants.
According to some media reports, a power-grid investment plan prepared by the Electric Power Planning and Engineering Institute has passed evaluation by the China International Engineering Consulting Corp. and is expected to be approved by the National Energy Administration.
The plan is said to require an investment of more than 200 billion yuan, including 12 east-west power supply channels, including four UHV AC power transmission lines, five UHV direct current lines and three conventional 500-kilovolt networks. These include a line between Yaan in Sichuan province and Wuhan in Hubei, one between Ximong of Inner Mongolia and Shandong province, and one between Jiuquan of Gansu and Hunan provinces.
It aims to solve the problems of power shortage and heavy pollution in the Yangtze River Delta and Pearl River Delta regions.
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