This Decision Regulation Impact Statement (RIS) examines the expected impacts, including costs and benefits, associated with a proposal to add separate heating and cooling load limits or ‘load limits’ to the current Nationwide House Energy Rating Scheme (NatHERS) compliance pathway for the energy performance of residential buildings in the National Construction Code (NCC, or the Code). The separate heating and cooling load limits would be in addition to the current NatHERS rating requirements in the Code, but would be set at a level that is not intended to change stringency.
This Report provides a companion document to the Code Calculator, a spreadsheet tool developed by Strategy. Policy. Research. that enables users to estimate energy and greenhouse gas savings associated with possible changes to energy performance requirements in the National Construction Code of Australia.