On this page you'll find a list of qualified computer software for calculating commercial building energy and power cost savings that meet federal tax incentive requirements. To submit software for consideration to be added to this list, please read the relevant Requirements and Submission Process for Qualified Software.

Federal Tax Deduction Qualified Software

For properties placed into service on or before December 31, 2020, the reference for definition for energy cost savings calculation remains ANSI/ASHRAE/IESNA Standard 90.1-2007.

Standard 90.1-2007 is defined by the PATH Act of 2015 as "Standard 90.1–2007 of ASHRAE and IESNA (as in effect on the day before the date of the adoption of Standard 90.1–2010 of such Societies)." This definition includes 90.1-2007 and the Addenda Supplement Package (Addenda a, b, c, g, h, i, j, k, l, m, n, p, q, s, t, u, w, y, ad, and aw) and Addendum r, plus all published errata.

Qualified Software for Buildings Placed in Service On or Before December 31, 2020

This section lists software that can be used to model systems and buildings placed in service on or before December 31, 2020. Updates will be made for properties placed into service on or after January 1, 2021, upon anticipated IRS Notice release.

DesignBuilder
DeST
DOE-2.2
EnergyGauge
EnergyPlus®
eQUEST
Hourly Analysis Program (HAP)
IES Virtual Environment
OpenStudio® with EnergyPlus
TAS
TRACE 3D Plus
TRACE 700
TRNSYS