China Begins Work on World’s Largest Clean Power Line, Costing USD7.5 Billion

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China kicked off construction on a massive ultra-high voltage direct current power line yesterday that will stretch from the Xizang Autonomous Region in the far west of the country all the way to the Guangdong-Hong Kong-Macao Greater Bay Area on the east coast. With a total investment of CNY53.2 billion (USD7.5 billion), it will be the world’s largest clean electricity direct current transmission line once complete.

The power line will run 2,681 kilometers across the country through major regions including Xizang, Yunnan province, Guangxi Zhuang Autonomous Region and Guangdong province. It will be able to carry up to 10 million kilowatts of power and is scheduled to come into operation in 2029, according to announcements made yesterday by grid operators State Grid Corporation of China and China Southern Power Grid.

Source: Lidan, Zhou & Zujia, Cao & Gang, Yao & Dong, Liu. (2020). Research on the Development of the Ubiquitous Power Internet of Things. Journal of Physics: Conference Series. 1659. 012008. 10.1088/1742-6596/1659/1/012008.