FuelEU Maritime · EU ETS

LNG in a medium-speed Otto engine clears the 2025 limit by 0.13 — and misses 2030 by 3.51.

Both numbers are gCO2eq/MJ, and both fall out of the regulation's own factors rather than anyone's model. Methane slip is the reason: Annex I counts fuel that leaves the engine unburned as methane, at 25 times the weight of CO2, so a 3.1 % slip gives back most of what the molecule saved.

Put your own fuel mix in below. You get the GHG intensity, the compliance balance, the FuelEU penalty from the Annex IV formula and the EU ETS allowances you must surrender — each traceable to the article it comes from.

Your fuel

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Fuel mix

Tonnes bunkered for the year, per fuel and engine. Add as many rows as you need.

Scope and year

Reporting year

Share of energy on voyages with one end outside the EU Article 2 counts these at half. Intra-EU voyages and time at berth count in full.

Consecutive years in deficit, including this one Article 23(2) multiplies the penalty by 1 + (n−1)/10.

EU allowance price, € per tonne (optional) Left blank, allowances are counted but not priced. The count is law; the price is a market.

Every fuel against the limit

Well-to-wake intensity from the Annex II defaults, against the limit for the year selected above. Biofuels are deliberately absent: Annex II sends them to certified production pathways under the Renewable Energy Directive, so there is no honest single number to put in a table.

Fuel and engine	gCO2eq/MJ	Margin	Against the limit

LNG in a medium-speed Otto engine clears the 2025 limit by 0.13 — and misses 2030 by 3.51.

Your fuel

What this does not cover

Where each number comes from

Every fuel against the limit