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

  • Discontinuation of the sale by tender of FirstRate5

    Jun 22, 2016
    Sustainability Victoria has decided to discontinue the sale by tender of FirstRate5. The tender process for the sale of FirstRate5 was initiated by SV in May 2015. That process has now been discontinued with the software to be retained in Victorian Government ownership.
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  • Release of FR5 v5.2.3a (3.13)

    May 20, 2016
    FirstRate5 v5.2.​3a (3.13) is now available as a free download from This version is a minor bug fix release with a number of additional enhancements included. Full details are available in the software Release Notes, which can be opened by clicking ‘Release Notes’ under the Help menu.
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  • Building and construction projects invited to enter Premier's Sustainability Awards

    May 16, 2016
    Sustainable design, construction and building industry sector are now invited to enter their projects into the Victorian Premier's Sustainability Awards and share their achievements. Entries are now open for businesses, organisations, state and local government and individuals who are leading the way in innovative sustainable construction.
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  • Release of FR5 v5.2.3, New User Manual and Website Upgrades

    May 04, 2016
    We are pleased to announce the following FirstRate5 changes. •Release of the new FirstRate5 manual •Release of FR5 v5.2.3 (3.13) •Updates to the FirstRate5 website See below for further details.
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  • Expiry of FirstRate5 v5.1.11c – 30 April 2016

    Apr 20, 2016
    The NatHERS National Administrator has informed Sustainability Victoria that the short-term accreditation of FirstRate5 v5.1.x will expire on 30 April 2016. The official announcement can be found on the NatHERS website. This change means that after 9pm on 30 April 2016 FirstRate5 files created using v5.1.11c will no longer calculate automatically on the FirstRate5 website.
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