DOE Assessment of Historical Transmission Schedules and Flows in the Eastern Interconnection, v1.0

Publication Type


Date Published



Understanding and analyzing scheduled and actual flows of electricity on the transmission grid can provide insight into how traditional utilities, power marketers, and others use the system. It can indicate where and when the system is heavily or consistently used, and how schedules align with actual use.

There are limited sources of data that provide information on scheduled and actual electricity transfers in the Eastern Interconnection of the United States. To address this gap, the U.S. Department of Energy, through the Lawrence Berkeley National Laboratory, issued a contract to Open Access Technology International, Inc. (OATI) to identify and aggregate data describing scheduled transactions and actual flows in the Eastern Interconnection for the year 2011, 2012, and 2013.

OATI was directed to aggregate the schedules and actual flows according to the sub-regions within the Eastern Interconnection that had been defined by the Eastern Interconnection Planning Collaborative (EIPC). However, for the 2011, 2012, and 2013 study, the 2010 EIPC diagram was slightly modified to aggregate SPP_N and SPP_S into one SPP region. Also, the pipe between Non-RTO Midwest and PJM was added for the 2011, 2012, and 2013 study.

This report documents OATI’s data collection and aggregation, and presents the data.

See the 2014 report here.

Year of Publication



Research Areas: