The North Plains Connector is a 420-mile, up-to-525 kilovolt high voltage direct current (HVDC) transmission line connecting the U.S. Eastern and Western electric grids in Montana and North Dakota.

Pecos West is an approximately 280-mile, 525-kilovolt HVDC intertie line stretching from Bakersfield in Pecos County, Texas to El Paso, providing a valuable link between ERCOT and the Western Interconnection.

Grid United and Black Forest Partners are co-developing the Southline Transmission Project, a 278-mile, high-voltage transmission line and associated substation facilities.

Three Corners Connector is a 300-mile, up-to-525 kilovolt HVDC transmission line connecting the existing electric systems near Pueblo, Colorado, and the Oklahoma Panhandle, providing a valuable link between the Eastern and Western Interconnections. 

Wyoming Intertie is an approximately 160-mile, high-voltage transmission line that will connect the Eastern and Western Interconnections by linking infrastructure in Carbon County, Wyoming, to that in Platte County, Wyoming.