Technical Support for National Transmission-Related Studies

Berkeley Lab has supported the U.S. Department of Energy’s Office of Electricity Delivery and Energy Reliability in the preparation of every major electricity study released by the office since it was created. These include the following:

Berkeley Lab also has helped prepare independent analyses and reviews of selected transmission planning issues.

Transmission System Utilization

In support of DOE’s National Electric Transmission Congestion studies, Berkeley Lab has coordinated the preparation of technical reports on the historic utilization of the transmission systems within the United States’ Eastern Interconnection. These reports parallel analyses of historic utilization of the Western Interconnection that are routinely prepared by the Western Electric Coordinating Council’s Transmission Expansion Planning and Policy Committee. Starting in 2016, the U.S. Energy Information Administration began to make publicly available hourly information on power flows among U.S. balancing authorities, through its U.S. Electric System Operating Data Tool. In addition, Berkeley Lab has conducted reviews of congestion cost methods used by Regional Transmission Organizations (RTOs) and Independent System operators (ISOs).

Support for Oversight of Interconnection-wide Regional Transmission Planning

Following the American Recovery and Reinvestment Act of 2009, Berkeley Lab provided technical support to DOE in managing grants for interconnection-wide planning activities led by the Eastern Interconnection Planning Collaborative, the Eastern Interconnection States Planning Council, the Western Electric Coordinating Council’s Transmission Expansion Planning and Policy Committee, the State-Provincial Steering Committee, and the Electric Reliability Council of Texas (ERCOT).



Assessment of Historical Transmission Congestion in the Eastern Interconnection for 2015 (v2.0). Open Access Technology International, 2019.




National Electric Transmission Congestion Study (2015). U.S. Department of Energy, 2015.


Fisher, Emily, and Joseph H Eto. "Congestion Measures for Organized Markets in the U.S." IEEE 47th Hawaii International Conference on Systems Science (HICSS). Waikoloa, HI: IEEE, 2014. LBNL-6539E.


National Electric Transmission Congestion Study (2009). Berkeley: LBNL, 2009.


National Electric Transmission Congestion Study (2006). Berkeley: U.S Department of Energy, 2006.
Recommendation 12: The Relationship between Competitive Power Markets and Grid Reliability. U.S.-Canada Power System Outage Task Force, 2006.



Lesieutre, Bernard C, and Joseph H Eto. "When a Rose Is Not a Rose: A Review of Recent Estimates of Congestion Costs." The Electricity Journal 2004. LBNL-52739.
Final Report on the August 14, 2003 Blackout in the United States and Canada: Causes and Recommendations. U.S.-Canada Power System Outage Task Force, 2004.


Lesieutre, Bernard C. "Congestions Costs in Electricity Markets." Japan-America Frontiers of Engineering Symposium November 20-22, 2003 2003.
Lesieutre, Bernard C, and Joseph H Eto. Electricity Transmission Congestion Costs: A Review of Recent Reports. Berkeley: LBNL, 2003. LBNL-45049.



Stoft, Steven. The Effect of the Transmission Grid on Market Power. Berkeley: LBNL, 1997. LBNL-40479.


Kahn, Edward P, and Steven Stoft. Organization of Bulk Power Markets: A Concept Paper. Berkeley, CA, 1995. LBNL-37508.


Baldick, Ross, and Edward P Kahn. The Transmission Interface Constraint Problem. Berkeley: LBNL, 1993. LBNL-34772.