GeoRePORT Protocol Volume III: Technical Assessment Tool

Rachel Rubin, Katherine Young, Alex Badgett, Kevin McCabe, Amanda Kolker, Aaron Levine, Erik Witter, Patrick Dobson

Research output: NRELTechnical Report


The GeoRePORT System is based on the concept that a geothermal system can be described both in terms of the quality of the geothermal resource as it relates to the potential to extract heat (resource grade) and the progress of research and development over the lifetime of the project (project readiness level). By assessing the major characteristics of a geothermal resource and categorizing the techniques used and how well the research technique was implemented, users can report a resource grade. The resource grade covers multiple geological, technological, and socioeconomic attributes that can be compared across play types and geothermal areas. Resource grade and project readiness level are reported for three assessment categories: geological, technical, and socioeconomic. This protocol document applies to the Technical Assessment Tool and is intended for use with an excel-based spreadsheet tool, published separately.
Original languageAmerican English
Number of pages100
StatePublished - 2022

NREL Publication Number

  • NREL/TP-5700-81741


  • geothermal project development
  • geothermal resources
  • Technical Assessment Tool


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