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Energy & Water Efficiency

Across Australia, regulations which require all types of new homes to be more energy and water efficient are being introduced. In most cases, these regulations are applied via the Building Code of Australia, but not always. Some States have their own special requirements and in addition, some local councils can also have rules which must be met.  Alterations and additions to existing houses can also be required to meet energy and water efficiency rules. It is important that you check the rules for your project before you begin, to ensure your application is not delayed with council.

  • Current at: 20 March 2012
    Solar Photovoltaic Panel Installation (Nat)

    The Federal Government has increased its support for photovoltaic panel systems for homes through changes to the Renewable Energy (Electricity) Regulations through higher rebates. There are some rules and requirements for installing panel systems and ensuring eligibility for the rebates that builders should be aware of.
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  • Current at: 19 March 2012
    Insulating timber floors (Nat)

    The requirement to insulate a timber floor will depend on several factors including the orientation, design, fabric or external cladding and amount of glazing in the building. In some circumstances it may be worth considering insulating the sub–floor to achieve the required rating as more cost effective than other methods.
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  • Current at: 18 April 2011
    Principles of lifecycle assessment (NAT)

    You may have heard the term Life Cycle Assessment (LCA) over the last few years, but may be unsure what it refers to. This information sheet introduces LCA and how it can be used as a decision making tool for the assessment of building products, when the builder or owner is interested in considering the overall environmental impact of a building.
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  • Current at: 17 April 2011
    Elements of lifecyle assessment (NAT)

    This information sheet has been prepared to provide members interested in life cycle assessment of buildings and building materials with information on things to consider in an assessment. More details on Life Cycle Assessment and how it can be used is provided in HIA’s Information Sheet Principles of Life Cycle Assessment.
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  • Current at: 21 December 2010
    Ensure the energy rating on your windows is WERS to be confident of true performance (Nat)

    WERS (window energy rating scheme) is designed to look specifically at window ratings to improve the comfort of homes. The main purpose of energy efficiency in a residential application is to reduce the amount of times the heating and cooling appliances are turned on and off. WERS rated residential windows have star ratings and percentage improvements to help give an easy comparison of windows. WERS is currently the only AFRC accredited system for rating windows in Australia required for compliance to the building code of Australia’s glazing provisions
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  • Current at: 09 November 2009
    Phase out of inefficient incandescent light globes (Nat)

    The Australian Government has announced the phase-out or inefficient incandescent light bulbs over the next 3 years. The intention of the phase-out is to reduce energy consumption throughout the country as part of the Government’s commitment to reduce greenhouse gases by 60 per cent by 2050.
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  • Current at: 22 May 2009
    Water efficiency labelling standards scheme (WELS) (Nat)

    WELS was introduced in 2005 as a joint Federal and State Government initiative backed by the Water Efficiency Labelling and Standards Act 2005 to replace the 4A water efficiency rating system. The objective of the scheme is to encourage manufacturers to develop and market appliances and fittings that are more water efficient and to help consumers clearly identify and purchase water efficient products.
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  • Current at: 11 July 2008
    Greywater Recycling in single lots - what are the choices? (NSW/Hunter/Sthn NSW)

    Increasingly, people are interested or required to install greywater systems in their homes to meet building regulations or to just save water around the home. The choice of greywater systems can be confusing and the rules for where and when you can use them need to be checked before you choose what to install.
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  • Current at: 11 June 2008
    BASIX for alterations and additions (NSW/Hunter/Sthn NSW) /upload/hia/themes/images/iconpdf.gif

    A BASIX certificate is required for all alterations and additions to existing houses, valued at $50,000 or more requiring council approval. Each design will need unique options based on the type of renovation or alterations.
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  • Current at: 10 January 2007
    BASIX Handy Hints (NSW/Hunter/Sthn NSW)

    This Factsheet aims to help answer some of the quick questions that might pop up when you are trying to get a BASIX certificate. If you want to know more about what BASIX is and when you will need a BASIX certificate, you should read the HIA Factsheet – Knowing the BASIX. The BASIX website is www.basix.nsw.gov.au.
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  • Current at: 10 January 2007
    Knowing the BASIX (NSW/Hunter/Sthn NSW)

    All new houses in NSW need to have a BASIX Certificate. This information sheets explains what BASIX is, how you can access the BASIX program and what you will need to do when you prepare a development application for council.
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