As there are limited numbers of LCA’s of buildings completed in Australia, the sample group is too small to quote what an “average” might be. However after conducting numerous LCA’s on “benchmark” or “standard” Australian residential designs we have found that “Embodied Energy” is responsible for approximately 35% of the a buildings carbon footprint.

As we rapidly populate our database of designs globally we will be better positioned to provide more accurate statistics on “average” values. To put this in perspective, in Australia air conditioning is responsible for approximately 23% of the buildings total carbon footrpint over its design life. With “Embodied Energy” at 35% we feel that it is imperative that the use of eTool and LCA compliment the legislated design requirements for the thermal performance of buildings in Australia.

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