Energy Efficiency

Energy efficiency is a core focus of the ABCB 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 Council of Australian Governments (COAG) Energy Council’s National Energy Productivity Plan and Trajectory for Low Energy Buildings.

After focussing on commercial building energy efficiency in NCC 2019, the emphasis of the NCC 2022 energy efficiency work will be on residential buildings. This will involve the development of enhanced energy efficiency provisions for residential buildings, including a possible increase in the level of thermal comfort and a whole-of-house-energy use budget. For commercial buildings, initial investigations will be carried out to support possible future changes in NCC 2025.

A scoping study, titled Energy Efficiency Scoping Study: NCC 2022 and beyond, was released for public comment in August/September 2019 to seek initial views on the proposed approach and scope of future changes to the NCC energy efficiency provisions particularly in 2022.

Further information on the NCC energy efficiency project is available.

Condensation in Buildings

This project involves investigating the role of the NCC in mitigating the risk of condensation in residential buildings. It is being carried out in response to feedback from industry and building regulators. After introducing initial condensation provisions in NCC 2019, consideration will be given to further opportunities for addressing the risk of condensation. This work will be undertaken in conjunction with the energy efficiency changes for residential buildings planned for NCC 2022.

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


Minimising Condensation in Buildings

An overview on the effects of condensation within buildings. Read More

Verification using a reference building

Describes the new Verification Method V2.6.2.2 within NCC Volume Two. Read More

Vertical separation of openings in external walls

Steps through NCC requirements found in C2.6. Read More

Fan System Calculator

Demonstrates how to use the new Fan System Calculator for NCC Volume One. Read More

Building sealing verification

Describes the new Verification Method V2.6.2.3 within NCC Volume Two. Read More

NCC 2022 energy efficiency project

Provides an overview of the project time frames and working group participants for the project. Read More

NCC 2022 energy efficiency project

Provides an overview of why the project is happening and which components are in scope. Read More

NCC 2019 Energy Efficiency Provisions

Provides rationale and scope of the NCC 2019 Energy Efficiency Project. Read More

Condensation in buildings

Assists in the assessment and management of the risk of condensation and its consequences. Read More

NCC 2022 Residential Energy Efficiency

Frequently asked questions about the NCC 2022 Residential Energy Efficiency provisions. Read More