According to the company, the Western Milwaukee County Electric Reliability Project involves construction of two transmission line connections to serve a new substation proposed by We Energies, adjacent to the existing We Energies’ Milwaukee County power plant and substation.

The Public Service Commission (PSC) of Wisconsin requires ATC to propose two route options for each power line.

ATC said it has identified variations on four route options for the new lines that include both overhead and underground segments.

The company will include these four route alternatives in its application to the PSC in early 2012, and if approved, the PSC will select the final two power line routes to be constructed.

Construction of the new lines is expected to begin in 2014 to meet an in-service date of 2015.

ATC owns, operates, builds and maintains a high-voltage electric transmission system serving portions of the US states of Wisconsin, Michigan, Minnesota and Illinois.