Hydrogen Blend Emissions Intensity Calculator
Combine lifecycle emission factors with the hydrogen energy share to quantify how blending programmes change delivered fuel intensity. Use the surcharge field to capture residual leakage or appliance adjustments when comparing deployment scenarios.
Screening-level emissions comparison. Validate against site-specific lifecycle assessments before regulatory filings.
Examples
- 20% hydrogen share, gas factor 53.06 kg CO₂e/MMBtu, hydrogen factor 2.00, surcharge 1.50 ⇒ Blended intensity 44.99 kg CO₂e/MMBtu and a 15.22% reduction versus baseline.
- 35% hydrogen share, gas factor 50.00 kg CO₂e/MMBtu, hydrogen factor 5.00, no surcharge ⇒ Blended intensity 32.50 kg CO₂e/MMBtu and a 35.00% reduction.
FAQ
Do I need to adjust for hydrogen lower heating value?
Yes. Convert both fuels to the same energy basis—typically MMBtu on a lower heating value—so the hydrogen share reflects actual delivered energy.
How can I include captured CO₂ from blue hydrogen?
Incorporate capture performance into the hydrogen emission factor. For example, if blue hydrogen yields 6 kg CO₂e/MMBtu after capture and transport, enter 6 as the hydrogen factor.
What if hydrogen causes additional compression loads?
Estimate the extra electricity or fuel required to compress hydrogen for blending, convert it to kg CO₂e per MMBtu, and add it to the leakage surcharge field for a conservative assessment.
Additional Information
- Result unit: kilograms of CO₂e per MMBtu delivered.
- Hydrogen share is applied on an energy basis; adjust for HHV/LHV differences before using the tool.
- Leakage surcharge is added after weighting energy shares so you can include residual methane slip or appliance retrofits.