Architect Explains Updates to the Energy Efficiency Standards

The Modern Homes Energy Efficiency Standards are changing!

Have you heard about the changes to the Modern Homes Energy Efficiency standards?

If so, you may be confused about what they mean, and why they’re being implemented.

Thankfully – we’re here to help!

The Modern Homes standards are part of the the National Construction Code 2022 (NCC 2022).

They come into effect in May 2024, and were created to enhance the liveability of new homes!

Background

The Nationwide House Energy Rating Scheme (NatHERS) provides homes with a star rating based on their energy efficiency, with ratings ranging from 0 to 10 stars.

The system evaluates the thermal performance of a house’s design, focusing on its ability to maintain comfortable temperatures with minimal artificial cooling or heating.

Introduced in 1993 and adopted nationwide in 2004, NatHERS aims to improve the energy efficiency of Australian homes, supporting efforts to reduce greenhouse gas emissions and energy consumption.

Higher star ratings indicate better thermal performance and lower energy usage.

What criteria will new homes have to meet?

Under these changes, all new homes will have to meet a 7-star rating out of 10.

Doesn’t sound too bad, right?

Unfortunately, not all designers and builders have the experience, or the care, to meet this standard.

Here are some statistics from CSIRO that may give some insight into what percentage of Australian builds currently meet these standards:

As you can see, Australia is still a fair way off meeting these standards on average!

Impact

Raising the NatHERS rating from 6 to 7 stars signifies a significant push towards more energy-efficient homes in Australia.

This change is expected to reduce energy consumption for heating and cooling, leading to lower utility bills for homeowners and a smaller carbon footprint for the household.

Additionally, the shift aims to enhance indoor comfort levels throughout the year, irrespective of external temperatures.

It encourages the use of advanced building techniques and materials that are more environmentally friendly, supporting broader sustainability goals.

What difference will this make to me?

Great question!

This change in standards is ONLY applicable to new homes. If you live in a home currently that doesn’t meet these standards – it is completely optional whether you want to make any renovations.

The biggest difference will be for those interested in new builds.

The minimum energy efficiency rating rising to 7 means that now more than ever, it is especially important for those wanting to undertake a new build project to get the expert opinion of an architect specialising in energy efficient designs.

Challenges and Opportunities presented by these changes

The move to a higher NatHERS rating presents challenges such as increased construction costs, and the need for greater technical knowledge in energy-efficient design.

However, it also offers opportunities like reduced long-term energy costs, improved indoor comfort, and a push towards innovation in sustainable building practices and materials.

This shift encourages the industry to adopt more advanced technologies and designs, fostering a more sustainable and energy-efficient future for residential construction.

What traits should I look for in an energy-efficient architect?

When searching for architects skilled in achieving a 7-star NatHERS rating, look for those with a strong portfolio in sustainable and energy-efficient design.

Traits include expertise in passive solar design, a focus on innovative insulation techniques, and experience with green building materials.

Additionally, seek professionals who prioritize client collaboration and are knowledgeable about local climate conditions, as these aspects are crucial for customizing designs to achieve optimal energy efficiency.

Need any assistance?

If you need assistance finding an architect who can achieve this rating for your new build, we can help!

The photos in this post are from our Sustainable and Passive house design in Sherwood – which achieved an 8.7 Star Energy Efficiency rating!

To read more about our Sherwood house, you can check out the project page here!

Just look how happy our client, David, was with his new home!