Hydrogen gas and related production processes exported to the EU.
Calculate my Hydrogen exposure →Emissions scope
Direct only
GHGs covered
CO₂
Functional unit
Tonnes product
Indirect electricity
Excluded — Annex II
Hydrogen exporters must report direct embedded emissions only. The calculation methodology varies significantly by production route — steam methane reforming produces high direct emissions, while electrolysis produces near-zero direct emissions. Indirect electricity emissions are excluded under Annex II.
Indicative typical intensities, for comparing routes at an order of magnitude. These are not regulated values and not the EU default values: those are published per country and per CN code in IR (EU) 2026/1740 Annex I, are generally higher, and are the figures a declarant actually uses. Look up the published default for your CN code →
~8.50 tCO₂e/t indicative
Grey hydrogenNatural gas reacted with steam to produce hydrogen. Current dominant production method globally. High direct emissions.
~0.50 tCO₂e/t indicative
Green hydrogenWater split using electricity to produce hydrogen. Near-zero direct emissions — electricity excluded from CBAM scope.
~7.50 tCO₂e/t indicative
Blue hydrogen potentialCombined reforming process. Similar emissions profile to SMR but more efficient at scale.
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