In 2003, DTE sold the subsidiary to ITC Holdings Corp., making it the first fully independent electricity transmission company in the United States.

[2][3][4][5] On February 9, 2016, it was announced that Fortis Inc., a Canadian utility company based in St. John's, Newfoundland and Labrador, will buy ITC Holdings for about $6.9 billion.

[8] The system has 230 kV lines that cover the Metro Detroit area including Shelby Township in Macomb County where two meet at the Jewell Substation.

This corridor extends 20 miles (32 km) through Warren from the Stephens Substation and through Sterling Heights and Utica, and finally Shelby and Washington Townships.

ITC Transmission has spent approximately $1.2 billion in capital investments in rebuilding electric infrastructure in the metro-Detroit area since 2003.

[citation needed] In October 2006, ITC Holdings Corp. completed the acquisition of METC, or Michigan Electric Transmission Company.

The substation serves to connect the two 138kv Beecher-Whiting circuits that run between Adrian and Consumers' J. R. Whiting Generating Complex on Lake Erie with the 345kv Majestic-Lemoyne line.

This subsidiary was created on December 20, 2007 with ITC's acquisition of Interstate Power and Light Company's transmission system.

[8] Since 2008, ITC Midwest has completed 16 new generator interconnects, adding approximately 2,137 megawatts of wind energy production capacity to the grid.

[citation needed] As of 2019, ITC Holdings plans to build its own "private fiber network" which will be stringed on its electricity transmission lines.