Ultra-High Voltage Transmission (UHV) – A New Way to Move Power

by | Jan 9, 2015 | Industry, Power Generation | 0 comments

Alan Novak Director, Mining and Power IndustriesAuthor: Alan Novak, Mining and Power Industries Director

Ultra-High Voltage (UHV) transmission refers to power transmission lines operating at greater than 800,000 volts (800 kV).

For reference, most transmission lines in the United States operate at voltages less than 395kV.

Source: Concept of energy transmission & distribution (slide 17), ZunAib Ali (51 SlideShares) , Electronic Engineer at Uet Peshawar, Pakistan

Source: Concept of energy transmission & distribution (slide 17), ZunAib Ali (51 SlideShares) , Electronic Engineer at Uet Peshawar, Pakistan

The primary benefit of UHV transmission is the ability to transport electricity over long distances with minimal power loss. While there have been advances over the years, adoption has been relatively slow:

Source: Wall Street Journal, Going the Distance

As noted above, China is the first to employ 1,000,000 Volt (1,000 kV) transmission lines and has begun an aggressive plan to interconnect major provinces with UHV lines. As noted in a recent Forbes article, Ultra-High Voltage Transmission Can Break China’s Cycle Of Energy Dependence, China has already demonstrated transmission at distances of 2,500 km, with lines up to 5,000 km being planned.

China is also exporting this expertise and working with companies such as Electrobras in Brazil to build a 2,000 km 800kV line which will transport hydroelectric power from northern Brazil to population centers in the south.

So why build a UHV transmission system? UHV allows generating plants to be moved closer to the fuel source and away from population centers, significantly improving local air quality. A secondary benefit is the ability to integrate widely dispersed renewable power sources (hydro, wind, and solar) into a national distribution network.

Only time will tell if UHV is the future for power transmission systems.

    Popular Posts



    Related Posts

    Follow Us

    We invite you to follow us on Facebook, LinkedIn, Twitter and YouTube to stay up to date on the latest news, events and innovations that will help you face and solve your toughest challenges.

    Do you want to reuse or translate content?

    Just post a link to the entry and send us a quick note so we can share your work. Thank you very much.

    Our Global Community

    Emerson Exchange 365

    The opinions expressed here are the personal opinions of the authors. Content published here is not read or approved by Emerson before it is posted and does not necessarily represent the views and opinions of Emerson.

    PHP Code Snippets Powered By : XYZScripts.com