ECA Fuel-Cost Premium
Quantify the annual fuel-cost premium of trading inside Emission Control Areas (ECAs) compared with HFO operation. Inputs: ECA hours per voyage, voyages per year, fuel consumption rate, HFO and ECA-compliant fuel prices. Outputs: annual ECA fuel mass, premium cost, and premium as a fraction of total annual fuel cost.
Voyage profile
Fuel pricing
Formula and assumptions
Assumes the ECA-compliant fuel is used only inside ECAs and the HFO is used outside ECAs. For ships using a scrubber to comply with ECAs without fuel switching, the premium is zero (fuel cost) but offset by the scrubber capital and operating cost.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $F_\text{ECA}$ | Annual fuel consumption inside ECAs | t / yr | result |
| $N_\text{voy}$ | Voyages per year | voyages / yr | schedule |
| $t_\text{ECA}$ | Hours inside ECA per voyage | h / voyage | route plan |
| $\dot{m}$ | Hourly fuel consumption at service speed | kg / h | SFOC × power |
| $P_\text{HFO}$ | HFO price (3.5% sulphur) | USD / t | market |
| $P_\text{ECA}$ | ECA-compliant fuel price (MGO 0.10%) | USD / t | market |
| 10⁻³ | Unit conversion (kg → t) | - | constant |
For ships operating principally outside ECAs (e.g. Asia-South America bulk trades), the ECA hours are typically 5% to 15% of total voyage hours and the premium is correspondingly small. For ships operating principally inside ECAs (e.g. intra-European cruise vessels, intra-Mediterranean container feeders), the premium can be 30% to 50% of total fuel cost - typically prompting investment in a scrubber, LNG dual-fuel retrofit or alternative-fuel new build.
Spotted an error in this calculation? . We acknowledge editorial corrections within two working days.