Building

Proposed energy efficiency changes for NCC 2019

26/03/2018
Construction plans with a green leaf, ruler and hard hat

The proposed energy efficiency changes for NCC 2019 are now available for public review and comment, through the NCC 2019 Public Comment Draft released on 8 February 2018.

What’s it all about?

The ABCB is proposing to update the energy efficiency provisions in NCC 2019 Volumes One and Two. These updated provisions are available through the NCC 2019 Public Comment Draft for public review and comment. These updates were driven by a request from the Council of Australian Governments (COAG) Energy Council under the 2015 National Energy Productivity Plan (NEPP), which was endorsed by the Building Ministers’ Forum.

The NEPP is a package of measures that aims to improve Australia’s energy productivity by 40 percent by 2030. The NEPP forecasts strong productivity and emissions reductions benefits through a revision of the NCC’s energy efficiency provisions, particular for commercial buildings.

So what’s proposed?

The NCC 2019 Public Comment Draft proposes a number of changes to increase the stringency of the energy efficiency provisions for commercial buildings (Volume One). The overarching Performance Requirement includes a quantified level of performance for buildings with a conditioned space.  New Verification Methods for NABERS Energy, Green Star and building envelope sealing have been added, and improvements have been made to the existing reference building Verification Method. A range of other changes have also been made to the Deemed-to-Satisfy Provisions, including the provisions for fabric and glazing, sealing, air-conditioning and lighting. An overview of proposed changes to the Volume One energy efficiency provisions for commercial buildings is available.

For residential buildings (Volumes One and Two), the ABCB has focused on strengthening the intent and interpretation of the current provisions. Improvements have been made to the reference building Verification Method to provide additional clarity and improve compliance. A new Verification Method for building envelope sealing has also been included in Volume Two. The NCC 2019 Public Comment Draft also introduces separate heating and cooling load limits to supplement the NatHERS star rating requirements. This will improve the performance of dwellings throughout the year, particularly in times of extreme heat or cold. A range of other minor changes have also been made to improve the existing energy efficiency provisions in Part 3.12. An overview of proposed key changes is available.

How can I provide comments on the NCC 2019 Public Comment Draft?

The consultation period closed Friday, 13 April 2018 for residential buildings and Friday, 20 April 2018 for commercial buildings. Thank you for your feedback.

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