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.

FirstRate5 Website Improvements

by FR5 | Feb 19, 2016

We are pleased to announce the following website improvements:

New - Credit History

We have added a Credit History pane in the Credit Usage section of all user accounts. This displays details of your purchased, used and expired credits, allowing better tracking of credit use.

Credit History

New - Certificates Produced with Delegated Accreditation Numbers

Users who have delegated their accreditation number to another user can now view certificates and stamps produced using their number. The project file may also be downloaded. See the Certificates pane in the Manage Delegations section of your user account.


For a reminder of how the delegate function works, please watch our FirstRate5 Delegations video (3mins) at the bottom of the FAQs section.

Latest Software

FirstRate5 v5.2.2c (3.13) was released on 8 February and is available as a free download from

This was a minor bug fix release, details are available in the Release Notes (C:\Program Files\FirstRate5-5.2.2\Readme.txt). We recommend that all users upgrade to this version.

For more information on FirstRate5 visit or email