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EcoSpold 2 · Calculation comparison

ecoinvent 3.9.1 cut-off, climate change

A comparison of published impact results with VoLCA calculations from the same source data and the publisher’s impact factors. Points on the diagonal agree.

This page shows engine v0.13.0, which is not the newest measured. Compare the engine versions, or see the current comparisons.

Engine version
volca 0.13.0 (8c0396c, v0.13.0, linux)
Measured on
Comparison measurements and reference
Databaseecoinvent 3.9.1 cut-off
Source formatEcoSpold 2
Impact method collectionEF v3.1
Impact categoryclimate change
Unitkg CO2-Eq
Activities compared17,161
Median ratio (VoLCA / published)1.0244
Comparison band1%
Activities outside the band12,020
Share outside the band70.04%
VerdictDisagrees: misses the agreement a release is held to
Points drawn2,087
Largest relative deviation+9,586.48%
Activity with largest deviationtreatment of bagasse, from sugarcane, in heat and power co-generation unit, 6400kW thermal
Published referenceecoinvent 3.9.1_cutoff_cumulative_lcia_xlsx.7z
ecoinvent 3.9.1 cut-off, climate change
Each point is one activity: what ecoinvent 3.9.1 cut-off published for climate change (kg CO2-Eq), against what VoLCA computes from the same EcoSpold 2 source under the publisher's own EF v3.1 factors. The black line is equality and the grey band is 1%. 17,161 activities were compared; 12,020 fall outside the band, more than a picture can hold, so 1,907 of the 17,161 are drawn, evenly spaced over the published value whichever side of the band they fall, and the 180 of the 200 farthest from equality that this walk missed are added. Where several fall on one spot, at most three markers are drawn there, since a fourth would not darken it. Median ratio 1.0244, 70.04% outside the band. This misses the agreement a release is held to: at most 5% of activities outside the band and a median ratio inside it.