There is still much evidence to be gathered and work to be done on current energy rating tools in order to develop the next generation for regulating and assessing low to zero carbon buildings.

In Australia and around the world, a number of building energy simulation packages and environmental performance indexes are used including GreenStar, BASIX and NatHERS in Australia;  BREEM and SAP in the United Kingdom; and LEED and EnergyPlus in the United States. Multi-indicator rating tools such as GreenStar and LEED  encourage…