2006 Congestion Study

Section 216(a) of the Federal Power Act requires the Department of Energy to issue a national transmission congestion study (Congestion Study) for comment by August 2006 and every three years thereafter.

The Congestion Study issued on August 8, 2006 is the Department of Energy's first congestion study. It examines transmission congestion and constraints and identifies constrained transmission paths in many areas of the Nation, based on examination of historical studies of transmission conditions, existing studies of transmission expansion needs, and unprecedented region-wide modeling of both the Eastern and Western Interconnections.

Public comment documents submitted for the National Electric Transmission Congestion Study are available for online browsing or downloading.

2009 Congestion Study

The next Congestion Study is due August 8, 2009. A Web site for the 2009 National Electric Tranmission Congestion study is available.

2006 Congestion Study and Related Documents

The following documents are in PDF format, which requires the free Adobe Acrobat Reader.

	Full Text of the Congestion Study 2006 (9.18 MB)
	Congestion Study 2006 Executive Summary (786 KB)
	Congestion Study 2006 Eastern Interconnection Analysis (6.8 MB)
	Congestion Study 2006 Western Interconnection Analysis (2.9 MB)
	Congestion Study 2006 Congestion Area Maps (440 KB)
	August 8, 2006 Notice of Availability of the Congestion Study (54 KB)
	Full text of the Notice of Inquiry (74 KB)
	Comments received as of March 6, 2006 (4.0 MB)
	Comments received after March 6, 2006 (988 KB)
	Proceedings (agenda, web cast archive, presentations, attendees).
	Written transcript of the conference (343 KB)
	Comments received on the plan presented at the Technical Conference (234 KB)