Summary
12 November 2018 (Wuhu, Anhui, China). Chinese international English-language news channel, CGTN recently featured, China's world's highest voltage transmission project completed in China.
The world's first 1100-kV UHVDC (ultra high voltage direct current) transmission line took final shape on Sunday as the last large-span tower was completed over the Yangtze River in east China's Anhui Province.
The transmission line starts from the Changji Hui Autonomous Prefecture, northwest China's Xinjiang Uygur Autonomous Region, and ends in the town of Guquan, Wuhu City in east China's Anhui. It passes through six provinces and an autonomous region, totaling 3304.7 kilometers, and has a transmission capacity of 12 million kw.
This UHVDC power transmission project has the highest voltage, biggest transmission capacity, the longest transmission distance and the most advanced in technology in the world.
More at HVDC Belt and Road 2019 China Conference
12 November 2018 (Wuhu, Anhui, China). Chinese international English-language news channel, CGTN recently featured, China's world's highest voltage transmission project completed in China.
The world's first 1100-kV UHVDC (ultra high voltage direct current) transmission line took final shape on Sunday as the last large-span tower was completed over the Yangtze River in east China's Anhui Province.
The transmission line starts from the Changji Hui Autonomous Prefecture, northwest China's Xinjiang Uygur Autonomous Region, and ends in the town of Guquan, Wuhu City in east China's Anhui. It passes through six provinces and an autonomous region, totaling 3304.7 kilometers, and has a transmission capacity of 12 million kw.
This UHVDC power transmission project has the highest voltage, biggest transmission capacity, the longest transmission distance and the most advanced in technology in the world.
Ultrahigh-voltage (UHV) electricity transmission has been used in China since 2009 to transmit both AC and DC electricity over long distances separating China's energy resources and consumers. Expansion of both AC and DC capacity continues in order to match generation to consumption demands while minimizing transmission losses. Decarbonization improvements will result from the replacement of lower efficiency generation, located near the coast, by more modern high efficiency generation with less pollution near the energy resources.
China’s decision to go for UHV transmission is based on the fact that energy resources are far away from the load centers.
The majority of the hydropower resources are in the west, and coal is in the northwest, but huge loadings are in the east and south.
To reduce transmission losses to a manageable level, UHV transmission is a logical choice.
As the State Grid Corporation of China announced at the 2009 International Conference on UHV Power Transmission in Beijing, China will invest RMB 600 Billion (approx. USD 88 Billion) into UHV development between now and 2020.
Implementation of the UHV grid enables the construction of newer, cleaner, more efficient power generation plants far from population centers.
Older power plants along the coast will be retired.
This will lower the total current amount of pollution, as well as the pollution felt by citizens within urban dwellings. The use of large central power plants providing electric heating are also less polluting than individual boilers used for winter heating in many northern households.
The main purpose for UHV in China?
The UHV grid will aid China's plan of electrification and decarbonization, and enable integration of renewable energy by removing the transmission bottleneck that is currently limiting expansions in wind and solar generation capacity whilst further developing the market for long-range electric vehicles in China.
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