Barriers and Opportunities to Realize the System Value of Interregional Transmission

Research output: NRELTechnical Report


This report identifies barriers within existing rules and operational practices that may limit the system value interregional transmission can provide and identifies a suite of options that could enable greater utilization of and value from interregional transmission. To allow for the variety of power sector structures that exist across the United States, the report divides the evaluation of barriers and opportunities into three sections: common issues that are found in all regions, barriers between non-market or hybrid areas, and barriers between market areas. The report also identifies ambitious, transformative national actions that could unlock transmission value across both market and non-market areas. In the analysis of barriers and potential opportunities for improvement, we recognize these are complex issues that with a diverse set of power system stakeholders and considerations that must be taken into account. The aim of this report is not to make recommendations but to identify options to improve the use of interregional transmission that could be considered alongside other local, state, and regional objectives.
Original languageAmerican English
Number of pages59
StatePublished - 2024

NREL Publication Number

  • NREL/TP-6A40-89363


  • interchange
  • interregional transmission
  • seams
  • transmission


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