Energy Modeling

Energy modeling software is the best tool we have to predict the energy use in buildings. The University of Arizona, College of Architecture and Landscape architecture performed the energy modeling that resulted in the prescriptive paths of the standard (sections 1.4.3 and 2.4.3). It is highly recommended that project teams perform their own energy modeling.

Residential Energy Modeling Tools

  • Home Energy Saver this free web based tool is designed to used with by individuals without detailed construction background.
  • REMDesign This $347 software is the same software used by energy raters and by TEP to determine the performance of TEP Guarantee Homes. The interface is intuitive and can be easily used by building professionals without prior energy modeling experience.
  • eQuest is free software primarily for building professionals working on commercial buildings but can be used for single family residences using the multifamily schedules.

Commercial Energy Modeling Tools

  • eQuest is free software primarily for building professionals working on commercial buildings. eQuest is approved for use for LEED energy modeling. eQuest was tested against 20 other software programs and found to be the best in terms of modeling passive solar and natural ventilation in relation to its cost and ease of use.
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For projects in the jurisdiction of the City of Tucson

Clayton Trevillyan
Chief Building Official

City of Tucson Planning and Development Services

(520) 837-4937

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For projects in the jurisdiction of Pima County and information regarding the Net-Zero code in general

Daniel Ice
Green Building Program Manager

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