Energy efficiency is a core focus of our work program and forms part of the Australian, state and territory governments’ strategies to improve energy productivity and reduce greenhouse gas emissions.

NCC 2022 Energy Efficiency

This project was initiated by the former Council of Australian Governments (COAG) Energy Council’s National Energy Productivity Plan and Trajectory for Low Energy Buildings.

The emphasis of the NCC 2022 energy efficiency provisions is on residential buildings. This includes an increase in the level of thermal comfort and a whole-of-house energy use budget.

The provisions will also include measures that will reduce the cost of installing on-site renewables and electric vehicle charging at a later date.

Extensive expert and stakeholder consultation have informed the provisions included in NCC 2022, which are likely to be available for preview by August 2022. A transition period will apply to the provisions, in order to assist industry in preparing for the changes.

Initial work is underway to scope potential changes for commercial building energy efficiency in NCC 2025.

Condensation in buildings

It is important that with the introduction of energy efficiency requirements, the NCC mitigates the risk of condensation in residential buildings. After introducing initial condensation provisions in NCC 2019, measures to further address condensation are likely to be included in NCC 2022.

This work has been undertaken in conjunction with the energy efficiency changes in NCC 2022.

It is anticipated that further refinements and measures will be developed for NCC 2025.

Updated guidance material is also available to assist with minimising condensation in buildings.

NCC Energy Efficiency resources

The ABCB has also produced an extensive range of resources to help practitioners understand and implement the energy efficiency requirements of the Code.

EditionPublishedArticles and resources Type
NCC 2022 2019/12 NCC 2022 energy efficiency project: Rationale and scope Factsheet
NCC 2022 2019/12 NCC 2022 energy efficiency project: Development process Infographic
NCC 2022 2019/12 Energy efficiency: NCC 2022 and beyond outcomes report Report
NCC 2022 2019/12 Energy efficiency: NCC 2022 and beyond scoping study Consultation
NCC 2022 2020/04 NCC 2022 Residential energy efficiency FAQs
NCC 2019 2020/12 Façade Calculator video YouTube Clip
NCC 2019 2020/04 Façade Calculator NCC 2019 Volume One Calculator
NCC 2019 2020/04 Lighting Calculator NCC 2019 Volume One Calculator
NCC 2019 2020/04 Fan system Calculator NCC 2019 Volume One Calculator
NCC 2019 2020/04 Pump system Calculator NCC 2019 Volume One Calculator
NCC 2019 2020/04 Glazing Calculator NCC 2019 Volume Two Calculator
NCC 2019 2020/04 Lighting Calculator NCC 2019 Volume Two Calculator
NCC 2019 2020/01 Fan system Calculator video YouTube Clip
NCC 2019 2020/01 Pump system Calculator video YouTube Clip
NCC 2019 2020/01 Verification using a reference building YouTube Clip
NCC 2019 2020/01 Building sealing verification YouTube Clip
NCC 2019 2020/04 Adaptive Thermal Comfort and Predicted Mean Vote Performance Scenario
NCC 2019 2020/04 Verification using NABERS Energy for Offices (JV1) Performance Scenario
NCC 2019 2020/04 Verification using Green Star (JV2) Performance Scenario
NCC 2019 2020/04 Verification using a reference building (JV3) Performance Scenario
NCC 2019 2020/05 Lighting refurbishment of an office building Case Study
NCC 2019 2020/05 Small office building Case Study
NCC 2019 2020/05 Hotel façade Case Study
NCC 2019 2019/07 Energy efficiency NCC Volume One Handbook
NCC 2019 2019/07 Energy efficiency NCC Volume Two Handbook
NCC 2019 2018/02 NatHERS heating and cooling load limits ABCB Standard
NCC 2019 2018/02 Inclusion of heating and cooling energy load limits in NatHERS assessment RIS (Final)
NCC 2019 2018/02 Energy Action Modelling and Sensitivity Analysis Report
NCC 2019 2018/02 Energy efficiency of commercial buildings RIS (Final)
NCC 2019 2018/02 Energy efficiency of commercial buildings NCC 2016 vs NCC 2019 DTS modelling report Report
NCC 2022 2018/02 Residential energy efficiency: heating and cooling load limits Report
NCC 2019 2020/06 NCC Volume Two, Energy Efficiency  NCC Essentials
NCC 2019 2020/06 NCC Volume One, Energy Efficiency NCC Essentials
NCC 2019 2020/07 Energy Efficiency requirements for fans in unitary AC equipment Advisory Note
NCC 2019 2020/07 Energy efficiency of fan systems Performance Scenario
NCC 2019 2020/07 Single storey house energy efficiency Performance Scenario
NCC 2019 2020/07 Eurovent Standards for chillers Performance Scenario
NCC 2019 2020/01 Section J Transformed: Stepping into energy change for commercial buildings YouTube Clip