For over 15 years, we have been at the forefront of sustainable home design and construction, setting benchmarks with our 7-star energy-efficient homes. With recent updates to the National Construction Code (NCC) introducing the Whole of Home initiative, we are evolving our approach to energy efficiency to continue leading the industry toward a net-zero future.
What is the Whole of Home initiative?
The Whole of Home initiative is a significant expansion of the Nationwide House Energy Rating Scheme (NatHERS). It builds on the current 7-star thermal performance rating, adding an assessment of the energy efficiency of fixed appliances, solar systems, and battery storage. The result is a holistic rating out of 100 that measures both thermal comfort and the overall energy performance of a home.
Key aspects of the Whole of Home rating include:
- Heating and cooling systems: Evaluates the type and efficiency of HVAC systems, which account for around 40% of household energy use.
- Hot water systems: Assesses energy efficiency and type, including options like solar, heat pumps, and gas.
- Lighting: Considers power consumption, rewarding the use of efficient lighting solutions.
- Cooking appliances: Includes energy-efficient cooktops and ovens.
- Solar panels and batteries: Accounts for on-site energy generation and storage.
How the Whole of Home rating system works
The Whole of Home rating assigns a score out of 100, which reflects the energy efficiency and sustainability of a home. Achieving a higher score indicates greater efficiency and a reduced environmental footprint. Here’s how the scoring works:
- Scores below 60: These homes meet the basic requirements but have significant room for improvement in energy efficiency.
- Scores between 60-100: Homes in this range meet or exceed the NCC standards, offering excellent energy efficiency and lower operational costs.
- Scores over 100: A score above 100 represents net-zero or net-positive energy performance, meaning the home generates more energy than it consumes annually. This is achieved through advanced design strategies, highly efficient appliances, and optimized solar and battery systems.
The transition timeline
The Whole of Home initiative will be mandatory for new dwellings in most Australian states and territories, with varying implementation dates:
- Victoria, Queensland, and ACT: May 1, 2024
- South Australia: October 1, 2024
- Western Australia: May 1, 2025
For existing homes undergoing renovations or alterations, these requirements do not apply.
Designing beyond the standards
At Ecoliv, we view these updates as an opportunity to push the boundaries and advocate for builders to prioritise building energy efficient homes. While meeting the 7-star NatHERS rating and 60-point Whole of Home benchmark is now the standard, we strive to exceed these requirements to deliver homes that are zero-energy and prepared for a net-zero carbon future. This means our homes are designed to minimize emissions and facilitate energy sources and systems that align with Australia's decarbonisation goals.
Refined energy-efficient design and construction
Our modular homes are designed to maximize:
- Passive solar design: Thoughtful orientation, shading, and ventilation reduce heating and cooling needs.
- Sustainable materials: Ethically sourced and energy-efficient materials contribute to overall performance and reduce construction waste to landfill.
- Customizable energy solutions: Integrated solar panels, batteries, and energy-efficient appliances ensure your home works smarter, not harder.
French Island Project
Future focused homes
By focusing on both thermal efficiency and operational energy use, Ecoliv homes are designed and built to adapt to evolving environmental standards and energy needs. This holistic approach aligns with Australia's transition to net-zero emissions by 2050 and supports our clients in achieving sustainable, comfortable living spaces.
Setting the benchmark: The EcoGeneration display home
We are proud to announce that our newest design and display home, the EcoGeneration, has achieved an impressive Whole of Home score of 101 and a NatHERS rating of 7.6 stars. This milestone demonstrates our commitment to exceeding standards and delivering homes that embody responsible innovation. Additionally, the EcoGeneration reflects our aim to contribute to a regenerative future, optimising renewable energy systems and ensuring where possible every element of the home aligns with our core mission of reducing environmental impact.
Why the Whole of Home rating matters
The shift to the Whole of Home initiative is a pivotal step in reducing Australia's residential carbon footprint. By considering energy use from appliances and on-site generation, it encourages smarter, more sustainable design choices that benefit homeowners and the planet.
Benefits include:
- Lower energy bills: Efficient systems and solar power reduce ongoing costs.
- Improved comfort: Thoughtful design and efficient appliances create year-round comfort.
- Positive environmental impact: Reduced energy consumption contributes to restoring and protecting natural ecosystems.
By striving for these high-performing home scores, homeowners can embrace a future of energy efficiency, reduced carbon footprints, and a higher standard of living. These homes not only reduce energy bills but also contribute to a regenerative and renewable future. Ready to create a home that nurtures both you and the planet?
Explore how you can make sustainable choices today.
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