Readying for new HVDC line, U.S. lags behind rest of world

2017-01-03 - Power Magazine, Official publication of Electric Power article by Sonal Patel - January 1, 2017
The U.S. may be getting its first overhead 600-kV high-voltage direct-current (HVDC) line in more than 20 years. Developers are advancing the Plains and Eastern Clean Line, a 720-mile (1,150-kilometer [km]) project that could deliver 4 GW of renewable power from the Oklahoma Panhandle region to states in the Southeast. The project is spearheaded by Clean Line Energy and GE Energy Connections, though the U.S. Energy Department is also a participant. Construction on the line could begin in the second half of 2017.

The project is a big deal in the U.S., which has 20 HVDC transmission facilities, because it would be its most advanced. The nation’s most lauded HVDC project is the 500-kV Pacific DC Intertie, which has been in operation for over 30 years.

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