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.


To become a NatHERS Accredited Assessor you must obtain accreditation through an Assessor Accrediting Organisation (AAO).

The three AAOs under the NatHERS protocol, the Australian Building Sustainability Association (ABSA), Design Matters National  (DMN) and the House Energy Raters Association (HERA), accredit assessors who have fulfilled the requirements of accreditation.

New entrants to the assessor market must complete the Certificate IV in NatHERS Assessment to become a NatHERS Accredited Assessor.

For more information please visit:

Australian Building Sustainability Association (ABSA) - phone 1300 889 438 or email [email protected]
Design Matters National - phone 03 9416 0227 or email [email protected]
House Energy Raters Association (HERA) - phone 07 3209 9093 or 0447 099 392 or email [email protected]

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