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Green Smart Magazine : GreenSmart 2010
greensmart 2010 33 'Reduced water consumption was vital to achieve an ongoing water supply without depleting our rainwater storage,' Scott says. Scott also advocates the use of environmentally friendly materials to reduce energy costs. 'We used high levels of insulation in the walls, ceilings and roof to control heat flow throughout the year,' he says, while sustainably managed hardwood flooring and wool carpets are used due to their high environmentally credible qualities. As for energy, the Hawkins installed a 3kW stand-alone solar power system. The panels are fitted to trackers and located at the back of the house for maximum sun exposure, and there's also a back-up generator. In addition, a solar hot water system works to provide the house with hot water, and both solar systems work together with the Hawkins' own water supply to provide significant energy and water cost savings. Passive solar design is achieved through the northern orientation of the house. The only ongoing costs, which are kept to a minimum, involve the occasional replacement of LPG cylinders, plus some diesel fuel for the back-up generator during prolonged overcast weather. THIS PAGE: The house rates highly in BASIX ratings for water, thermal comfort and energy. smart bits Products used to enhance this home's environmental credentials include: > solar stand-alone power system > Biolytix wastewater treatment system > CSR Hebel power panels > Quickwall polystyrene panels > Caroma four- and five-star WELS rated Smartflush toilets > hardwood flooring > wool carpets > high levels of insulation > fluorescent downlights > light and motion sensors > slow combustion wood heaters. 'And none of these have disrupted or detracted from our lifestyle features.' Due to the lack of town water supplies during construction, Scott chose CSR Hebel power panelling to clad the downstairs walls, and used Quickwall polystyrene panels upstairs. Any water required for rendering these products came from local dam storage in a small portable water tank. 'In addition to its environmental achievements, the home has not sacrificed fantastic street appeal,' Scott adds. Scott hopes that with his help, sustainable living in his community will progress strongly. 'Having a stand-alone efficient house is all about minimising our footprint, and it's great to be able to show off the savings,' he says. gs 'WE DON'T HAVE ANY WATER OR ELECTRICITY BILLS'