Renewable Energy Zone (REZ) Transmission Planning Process: A Guidebook for Practitioners

Nathan Lee, Francisco Flores-Espino, David Hurlbut

Research output: NRELTechnical Report


Achieving clean energy goals may require new investments in transmission, especially if planners anticipate economic growth and increased demand for electricity. The renewable energy zone (REZ) transmission planning process can help policymakers ensure their infrastructure investments achieve national goals in the most economical manner. Policymakers, planners, and system operators around the world have used variations of the REZ process to chart the expansion of their transmission networks and overcome the barriers of traditional transmission planning. This guidebook seeks to help power system planners, key decision makers, and stakeholders understand and use the REZ transmission planning process to integrate transmission expansion planning and renewable energy generation planning.
Original languageAmerican English
Number of pages28
StatePublished - 2017

NREL Publication Number

  • NREL/TP-7A40-69043


  • grid integration of renewable energy
  • renewable energy zones
  • transmission expansion planning
  • transmission planning


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