Clean Line Energy’s transmission link is to carry 4GW of wind power from the Oklahoma Panhandle region to Arkansas, Tennessee and elsewhere in the mid-south and south-east.
The 720-mile (1,160-kilometre) project will be the first overhead HVDC project in the US since the Quebec-New England transmission line in 1992.
It is also GE’s first HVDC project in America since it bought Alstom’s energy business last year.
Construction of the transmission line is on track to start in the second half of 2017, said Houston-based Clean Line Energy.
"[This project] will pave the way for substantial growth in the US renewable energy industry," said Russell Stokes, president and CEO of GE Energy Connections.
In March 2016, the US Department of Energy agreed to participate in developing the transmission line.