Fixometer device reference data
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Basic methodology
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Carbon emissions prevented is where we are starting. (We have included data for H2O footprint in case found while searching for CO2 data.)
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CO2 emissions prevented by repair (kg) =
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CO2 emissions prior to usage (kg) x (rate of "displacement" of a new purchase)
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1) We prioritised the "most relevant" device categories, based on frequency of our fixes (2013-4)
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2) We collaboratively sourced AS MUCH data as possible on CO2 footprint in manufacture for these priority categories
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3) Each piece of data has a source (link, year) or as a last resort, results from a proxy assumption (indicated)
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After the data scavenger hunt, we rated data based on a data quality matrix: representativeness, age, reliability - see DQI sheet for more
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Assumptions:
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- consumption of materials during repair insignificant
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- gains by upgrade to "energy efficient" device insignificant
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- variations in distribution impacts between Europe and North America insignificant
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- average rate of displacement
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