The Trans-Allegheny Interstate Line Company, a subsidiary of Allegheny Energy, has signed a settlement agreement regarding the Pennsylvania segment of its proposed Trans-Allegheny Interstate Line transmission line project.

The agreement between the Trans-Allegheny Interstate Line Company (TrAILCo) and the Greene County Board of Commissioners requires the acceptance of the Pennsylvania Public Utility Commission and is contingent on final commission approval of a 1.2-mile segment of the 500kV line extending from a new substation in Greene County, Pennsylvania, to the West Virginia border.

TrAILCo and Greene County officials intend to encourage other parties to join the agreement, after which the agreement will be filed with the commission for approval.

This 1.2-mile segment addresses critical reliability concerns that could result in blackouts, rolling blackouts or brownouts for the Mid-Atlantic region, including Pennsylvania, as early as 2011.