Ship type Bulk carrier Gas carrier (LPG / ethane) Oil tanker Container ship General / multipurpose cargo Refrigerated cargo carrier LNG carrier Ro-Ro vehicle carrier (PCTC) Ro-Ro cargo ship Ro-Pax (passenger + Ro-Ro) Cruise ship (non-conventional) Capacity DWT Reference speed after limitation kn Speed at 75 % of the limited engine power (EPL or ShaPoLi), design draft, calm water.
Main engines (after limitation) Power at 75 % of the LIMITED MCR, not the nameplate MCR.
Power at 75 % limited MCR kW Fuel Heavy Fuel Oil (HFO / RMC..RMK) Very Low Sulphur Fuel Oil (VLSFO, ≤0.50% S) Ultra Low Sulphur Fuel Oil (ULSFO, ≤0.10% S) Light Fuel Oil (LFO / RMA, RMB) Marine Gas Oil (MGO / DMA, DMZ) Marine Diesel Oil (MDO / DMB) LNG - Otto cycle, medium-speed (4-stroke dual-fuel) LNG - Otto cycle, slow-speed (2-stroke low-pressure) LNG - Diesel cycle, slow-speed (2-stroke high-pressure) LPG - Propane LPG - Butane Methanol - grey (natural-gas feedstock) Bio-methanol e-Methanol (RFNBO from renewable H2 + captured CO2) Ammonia - grey (steam-methane reforming) Ammonia - blue (SMR + CCS) Ammonia - green (electrolytic, renewable) Hydrogen - grey (SMR) Hydrogen - green (renewable electrolysis) Bio-LNG (liquefied biomethane, waste feedstock) FAME biodiesel (B100, waste feedstock) HVO / Renewable Diesel (waste feedstock) Specific fuel consumption g/kWh ×
+ Add engine Auxiliary engines Total auxiliary power kW Fuel Heavy Fuel Oil (HFO / RMC..RMK) Very Low Sulphur Fuel Oil (VLSFO, ≤0.50% S) Ultra Low Sulphur Fuel Oil (ULSFO, ≤0.10% S) Light Fuel Oil (LFO / RMA, RMB) Marine Gas Oil (MGO / DMA, DMZ) Marine Diesel Oil (MDO / DMB) LNG - Otto cycle, medium-speed (4-stroke dual-fuel) LNG - Otto cycle, slow-speed (2-stroke low-pressure) LNG - Diesel cycle, slow-speed (2-stroke high-pressure) LPG - Propane LPG - Butane Methanol - grey (natural-gas feedstock) Bio-methanol e-Methanol (RFNBO from renewable H2 + captured CO2) Ammonia - grey (steam-methane reforming) Ammonia - blue (SMR + CCS) Ammonia - green (electrolytic, renewable) Hydrogen - grey (SMR) Hydrogen - green (renewable electrolysis) Bio-LNG (liquefied biomethane, waste feedstock) FAME biodiesel (B100, waste feedstock) HVO / Renewable Diesel (waste feedstock) Specific fuel consumption g/kWh
Attained EEXI
3.100 gCO₂ / t·nm
Required EEXI
3.486 gCO₂ / t·nm
Type-specific Z from MEPC.328(76).
Margin
11.1 %
11.1 % below required - compliant.
Formula, assumptions, and limits EEXI_attained = (Σ P_ME Cf SFC + P_AE Cf_AE SFC_AE) / (Capacity × V_ref_limited)
EEXI_required = Reference × (1 − Z_EEXI) (20 % typical, 5–30 % by type) EEXI re-applies the EEDI formula to existing ships. To comply without a capital retrofit, many operators cap the main engine via EPL or ShaPoLi - this lowers V_ref (and thus the denominator), which tightens Attained EEXI. Required EEXI is the same reference line minus a type-specific Z (20 % for most, 30 % for LNG and cruise, 5 % for small ro-ro and ro-pax).