FR5 Software

FirstRate5® house energy rating software

FirstRate5® is an easy-to-use interactive tool with a graphic user interface that enables designers and thermal performance assessors to generate energy ratings for a home by tracing over floor plans. The software integrates the AccuRate calculation engine to estimate the annual heating and cooling energy and can be used to rate an existing design or as an interactive tool to optimise the design beyond compliance.

Latest news

  • Release of 2018 User Support Survey Report

    Mar 20, 2019
    In July 2018, Sustainability Victoria (SV) issued an online survey to gather feedback on the FirstRate5 (FR5) technical support service, software development, and certificate generation website. The survey results can now be downloaded for review.
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  • Extension of transition period for FR5 v5.2.9 (3.13)

    Mar 04, 2019
    Sustainability Victoria (SV) has decided to extend by seven weeks the transition period during which both FR5 v5.2.9 (3.13) and FR5 v5.2.10 (3.13) files will automatically calculate on the FirstRate5 website. This has been done to allow users more time adjust to the new features contained in FR5 v5.2.10 (3.13) and upgrade existing project files.
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  • NatHERS statement on windows in NatHERS tools

    Feb 08, 2019
    The NatHERS Administrator has released a statement on windows in NatHERS tools which can be accessed from the NatHERS website.
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  • Release of FirstRate5 v5.2.10 Videos

    Dec 20, 2018
    Sustainability Victoria has released a series of video tutorials explaining FR5 v5.2.10’s new software features.
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  • Release of FR5 v5.2.10a (3.13)

    Dec 14, 2018
    FirstRate5 v5.2.10a (3.13) is now available as a free download from This version is a minor bug fix release and Sustainability Victoria (SV) recommends that all users upgrade to this version. This bug fix version addresses the issue related to the Raked Wall Helper that could result in corrupted project files. The software bug was triggered if a user edited the raked wall properties for multiple walls at the same time on the Plan tab or Zoning tab.
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