← Reliability

EcoSpold 1 · Calculation comparison

BAFU 2026 v1, Climate change (fossil)

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 categoryClimate change (fossil)
Unitkg CO2 eq
Activities compared11,657
Median ratio (VoLCA / published)1.0003
Comparison band1%
Activities outside the band386
Share outside the band3.31%
VerdictAgrees: meets the agreement a release is held to
Points drawn2,110
Largest relative deviation+11,073.14%
Activity with largest deviationElectricity, hydropower, at reservoir power plant
Published referenceBAFU-2026 v1 LCIA Results.xlsx
BAFU 2026 v1, Climate change (fossil)
Each point is one activity: what BAFU 2026 v1 published for Climate change (fossil) (kg CO2 eq), 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%. 11,657 activities were compared; 386 fall outside the band, more than a picture can hold, so 1,943 of the 11,657 are drawn, evenly spaced over the published value whichever side of the band they fall, and the 167 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 1.0003, 3.31% 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.