eToolLCD Data Update

eToolLCD Data Update

A host of new materials have been added to eToolLCD recently to enable even more design flexibility. As well as the new data, existing materials and energy processes have been updated also to achieve greater data consistency and accuracy. All the datasets are now based on AusLCI and the Ecoinvent 2.2 background modified with AusLCI inputs. Most figures for Global Warming Potential (GWP) are consistent with the previous background data with the exception of some outliers, key examples are listed below:
  • Timber data now includes the sequestration of carbon dioxide during the growth phase (which is then re-released into the atmosphere in end of life scenarios)
  • Copper and brass now using improved processing assumptions, decrease in global warming potential, increase in most other indicators
  • Glass fibre insulation has increased due to improved process assumptions
  • Natural polished stone has increased quite dramatically due to mapping electricity inputs back to carbon intensive Australian electricity
  • ABS, Nylon and Expanded Polystyrene impacts have all increased for GWP due to an update in processes (incumbant data was as old as 1990)
  • ​The land use figures have also changed quite a bit due to accuracy improvements in background LCI processes
We are literally in the thick of this update as I write this so still unsure of the changes at a building level. Our educated guess at this stage is any significant use of timber in a building will lead to a much greater saving in GWP compared to the older database. This may also make the benchmarks slightly tougher for some types of buildings (e.g. Residential).
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