Ammonia - Well-to-Wake by pathway

Grey (SMR), blue (SMR + CCS), green (electrolytic). Zero tank-to-wake CO₂; WtW depends on upstream hydrogen source and captures the N₂O penalty from combustion.

FuelAmmonia

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, limits

\text{TTW CO}_2 \text{ (t)} = \text{mass} \cdot C_f

\text{Energy (MJ)} = \text{mass (kg)} \cdot \text{LCV (MJ/kg)}

\text{WtW (t CO}_2 \text{e)} = \frac{\text{Energy (MJ)} \cdot \text{WtW factor (g/MJ)}}{10^6}

WtW factors include upstream extraction, processing, transport, plus tank-to-wake combustion and relevant CH₄/N₂O. FuelEU Maritime Annex II publishes the authoritative defaults.

In short

Well-to-wake GHG intensity of ammonia as marine fuel, by hydrogen-source pathway.

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