Home Energy Efficiency Report Perth
Energy Efficiency Reports Perth
New homes, renovations and extensions in Perth will require an Energy Efficiency Report.
What is an Energy Efficiency Report?
An Energy Efficiency Report is an assessment of the energy efficiency of a new home. The report will ensure that your new home meets a set threshold for thermal comfort. The report will show minimum insulation and glazing requirements as well as a star rating (NatHERS 7 Stars). Our team can complete a star rating by modelling the design of your home in energy software.
The rating will calculate how much energy you will use to keep your house comfortable. The report will show that you’re compliant with the energy efficiency requirements in the National Construction Code (NCC). This document must be submitted to the authorities to get a building permit for new homes, alterations, extensions and renovations.
Get Your Energy Report
Get in contact today and learn how we can help prepare your Energy Report
Need an Energy Efficiency Report in Perth?
If you need an Energy Efficiency Report in Perth, contact Green Choice Consulting to arrange your assessment. All reports need to show compliance with the National Construction Code (NCC) and government requirements.
The energy efficiency requirements can be met through the Deemed-to-Satisfy provisions or a performance solution.
Deemed-to-Satisfy Options:
- Energy Rating such as a NatHERS Assessment
- Using the elemental provisions in accordance with clause 3.12.0(a)(ii) of the NCC
Performance Solution:
A performance solution shows compliance by making a comparison with the DTS provisions. Green Choice Consulting has an in-house performance solution which leads to cost-effective outcomes.
WA Alterations and Additions Protocol for Energy Efficiency
The WA government has developed the WA Alterations and Additions Protocol. The protocol provides guidance for showing compliance on existing homes. The protocol is a performance solution which can be used to show that additions, extensions and renovations are compliant.
'Switch Your Thinking' Initiative
Green Choice Consulting is proud to be a part of the Switch Your Thinking initiative that encourages residents and businesses within the City of Armadale, City of Gosnells and the Shire of Serpentine Jarrahdale localities, plus a number of partner councils, to live and work sustainably.
This initiative has two excellent rewards programs; Rewards for Residents and Rewards for Business; whereby those eligible can access a range of discounts on products and services that will help you live and do business more sustainably.
As part of this initiative, Green Choice Consulting is offering residents and homeowners with properties located within the Switch Your Thinking councils a 10% discount off the initial quoted price of a NatHERS assessment. Simply mention the program to us when enquiring about your NatHERS assessment.
Eligibility
Residents, council staff and businesses situated in the following LGAs will be eligible:
- City of Gosnells
- Shire of Serpentine Jarrahdale
- City of Armadale
- City of Kalamunda
- City of Melville
- Town of Cambridge
- Shire of Mundaring
- City of South Perth
- Town of Victoria Park
- City of Subiaco
- City of Vincent
- City of Belmont
- Town of Bassendean
- City of Canning
- City of Stirling
- City of Swan
If your property is located in one of the above council areas, get in touch about your NatHERS assessment and be sure to mention your discount.
Will my home have an efficient energy rating?
The most common way to measure the energy efficiency of a new home is using NatHERS software. An assessor will use the building plans to model the home in the energy rating software. The software will then generate a rating on a scale from 0 to 10 stars. In Australia, the current standard (2022) is a 6 star energy rating.
- A 10 star home is a passive home that uses no energy for heating or cooling year round
- A 0 star home will provide no insulation from outdoor temperatures and will be uncomfortable
- A 6 star home indicates a good level of comfort and energy usage
How is the energy rating determined?
The calculations operate on a simulation engine developed by the Commonwealth Scientific and Industrial Research Organisation (CSIRO).
The rating of your home is dependent on the following factors:
- The local climate
- Layout and orientation of the home
- Roof, walls, floors and ceiling construction methods and insulation
- Overhead shading
- Shading from nearby buildings and structures
- Glazing type, positioning and size
The rating does not take into consideration appliances or renewable energy sources such as solar panels or batteries.
Minimum Requirements for Energy Efficiency Compliance
The nationwide house energy rating (NatHERS) is primarily used to determine the minimum energy requirements. Under the scheme your home will be modelled to predict the annual energy usage required to maintain thermal comfort. The results are shown as a star rating on a scale from 1-10. Depending on the credits you use, you will need to achieve 6.0 or 7.0 stars for compliance.
The NatHERS rating is based on the design and construction materials used in the building fabric. This includes:
- Insulation in floors, walls and ceilings
- Performance of glazing
- Sizes of windows and doors
- The layout of the home
- Shading from eaves or nearby shading such as fences and buildings.
It is important that the climate and design of the home will determine what type of insulation and glass is needed to meet the energy compliance requirements. To help reduce construction costs, consideration should be given to the climate.
Western Australia is covered by varying climate zones with Climate Zones 1, 3 and 4 making up the majority of the state. This means hot, dry or humid summers, with warm winters in zones 1 and 3, and cooler winters in zone 4. Perth and surrounds, however, is covered by Climate Zone 5 which faces a warm temperate year-round.
In some cases, the NCC2019 or NCC2022 elemental provisions can be used as an alternative to NatHERS. Our team of assessors are trained on all available pathways and can help you identify which pathway will give you the best possible outcome.
This image was sourced from the Australian Building Codes Board (ABCB) Website, available under a Creative Commons Attribution 4.0 International Licence.
Do I need an accredited Energy Efficiency Consultant?
It’s important to choose an accredited and certified assessor to carry out your energy efficiency assessments. Our team of assessors have extensive industry experience with a commitment to ongoing training and education.
Green Choice Consulting specialises in residential and commercial building developments. Our assessors provide expert advice on energy efficiency compliance with cost-effective solutions for owners, architects, builders and designers.
By consulting with us in the early design stages, we can help you save on build costs by identifying design weaknesses, and providing cost-effective solutions.
Why choose Green Choice Consulting?
- Accredited – We hold accreditation with Design Matters National and are subject to ongoing professional development.
- Accurate & Reliable – We are subjected to random Quality Audits to ensure a high standard of service.
- Endorsed Energy Reports – Only an accredited NatHERS assessor can complete an energy assessment using NatHERS software.
- Proven Cost Savings – We can identify design constraints and provide solutions which will lower your building costs.