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EcoSpold 1 · Calculation comparison

BAFU 2026 v1, Energy resources

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.

Engine version
volca 0.14.0 (bd7e64a, v0.14.0, linux)
Measured on
Comparison measurements and reference
DatabaseBAFU 2026 v1
Source formatEcoSpold 1
Impact method collectionEcological Scarcity 2021
Impact categoryEnergy resources
UnitUBP
Activities compared11,677
Median ratio (VoLCA / published)1.0058
Comparison band1%
Activities outside the band3,879
Share outside the band33.22%
VerdictDisagrees: misses the agreement a release is held to
Points drawn2,121
Largest relative deviation-91.81%
Activity with largest deviationBurnt shale, at plant
Published referenceBAFU-2026 v1 LCIA Results_corrected.xlsx
BAFU 2026 v1, Energy resources
Each point is one activity: what BAFU 2026 v1 published for Energy resources (UBP), against what VoLCA computes from the same EcoSpold 1 source under the publisher's own Ecological Scarcity 2021 factors. The black line is equality and the grey band is 1%. 11,677 activities were compared; 3,879 fall outside the band, more than a picture can hold, so 1,947 of the 11,677 are drawn, evenly spaced over the published value whichever side of the band they fall, and the 174 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 1.0058, 33.22% 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.