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EcoSpold 1 · Calculation comparison

BAFU 2026 v1, Resource use fossils

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
DatabaseBAFU 2026 v1
Source formatEcoSpold 1
Impact method collectionEF 3.1 adapted 1.05
Impact categoryResource use fossils
UnitMJ (net calorific)
Activities compared11,649
Median ratio (VoLCA / published)0.9989
Comparison band1%
Activities outside the band20
Share outside the band0.17%
VerdictAgrees: meets the agreement a release is held to
Points drawn1,959
Largest relative deviation+14%
Activity with largest deviationCellular glass aggregate Misapor, at plant
Published referenceBAFU-2026 v1 LCIA Results.xlsx
BAFU 2026 v1, Resource use fossils
Each point is one activity: what BAFU 2026 v1 published for Resource use fossils (MJ (net calorific)), against what VoLCA computes from the same EcoSpold 1 source under the publisher's own EF 3.1 adapted 1.05 factors. The black line is equality and the grey band is 1%. 11,649 activities were compared; 1,939 from inside the band are drawn, evenly spaced over the published value, plus the 20 outside it. Where several fall on one spot, at most three markers are drawn there, since a fourth would not darken it. Median ratio 0.9989, 0.17% outside the band. This meets the agreement a release is held to: at most 5% of activities outside the band and a median ratio inside it.