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  • Renovations and additions

    Key points

    • Renovations and additions can improve the energy and water efficiency of your home, at the same time as improving liveability and comfort.
    • Do your homework to find out how your home can be most cost-effectively improved. Expert assessment and advice can help you to get the best design.

  • Passive heating

    Key points

    • Passive heating, or passive solar heating, means trapping heat from the sun inside your home and using thermal mass, heat flow and insulation effectively to store, distribute, and retain the heat.

  • Photovoltaic systems

    Key points

    • Solar photovoltaic (PV) systems generate electricity from sunlight. Solar PV cells that capture sunlight are placed in panels, which are in turn placed in arrays, to deliver solar power to homes and businesses.