Engineering tool · climate impact
Climate impact
How clean the eKeroBel e-SAF is, and how much CO₂ it avoids. The method follows the project's EU Innovation Fund calculation and the RED III rules for synthetic aviation fuel. Change the inputs to see the carbon intensity, the saving against fossil jet fuel and the avoided emissions.
Electricity carbon intensity
The decisive lever. Only additional renewable electricity is counted at zero under the RED rules.
CO₂ source
Biogenic and air-captured carbon can be credited; fossil CO₂ cannot, after the phase-out.
Hydrogen supply
On-site electrolysis carries its emissions through the electricity. Delivered hydrogen uses its own factor.
Heat source
The IF default factor, or decarbonised heat from integration or renewables.
Fossil comparator
What the saving is measured against. The IF reference reproduces the official result.
Annual e-SAF production (t/yr)
e-LPG per e-SAF
0.25
Project life (years)
5
Relative GHG avoidance
77%
Carbon intensity
18.1 gCO₂e/MJ
Saving against the chosen fossil comparator, and the lifecycle carbon intensity of the fuel.
Qualifies as an RFNBO
Carbon intensity breakdown
| Component | tCO₂e per t e-SAF | gCO₂e/MJ |
|---|---|---|
| Electricity | 0.000 | 0.0 |
| Heat | 0.143 | 2.6 |
| Process (purge combustion) | 0.284 | 5.2 |
| End-of-life combustion | 3.954 | 72.6 |
| Carbon-capture credit | -3.393 | -62.3 |
| Net fuel carbon intensity | 0.988 | 18.1 |
| Fossil reference | 4.242 | 77.8 |
RFNBO ceiling (28.2 gCO₂e/MJ)
Highlights
With additional renewable electricity, the e-SAF avoids about 77% of fossil-jet emissions, clearing the 70% RFNBO threshold.
- Electricity is decisive: on the Belgian grid the electrolysis alone would emit more than fossil jet fuel.
- Because the CO₂ is biogenic the captured carbon is credited; without that credit the saving would be only about -3%.
Indicative estimates for screening and explanation. Not a certified GHG declaration; certification follows the applicable RED III and ReFuelEU procedures.