These documents outline the method that underpins the NatHERS Whole of Home modules and rating in the benchmark tool (AccuRate Home). It includes information for calculating the energy demand of a home’s energy uses such as heating and cooling appliances, hot water systems, lighting, pool and spa equipment, plug-in and cooking appliances. It also includes information for calculating on-site solar PV generation and storage, and the Whole of Home performance rating.

Whole of Home National Calculations Method (PDF)

Whole of Home National Calculation Method Appendices (MS Excel)

Please contact the NatHERS Administrator via admin@nathers.gov.au if you have any questions.