EEOI — Energy Efficiency Operational Indicator

Compute voyage EEOI = Total CO₂ / Transport work. Transport work = Σ(cargo mass × distance). Export PNG/PDF.

Method

Pick based on your available data.

Notes (optional)

A) Single voyage

Distance (nm)

Cargo carried (t)

Average cargo mass for the voyage.

Fuel (tonnes) × Emission factor

Fuel preset	Fuel (t)	EF (tCO₂/t)	Remove

CO₂ total = Σ (Fuel_i × EF_i).

Total CO₂: — t

Transport work: — t·nm

EEOI: — g CO₂ / (t·nm)

—

Notes

EEOI = Σ(Fuel_i × CF_i) / Σ(Cargo × Distance). Output shown in g CO₂ per tonne-nautical mile.

Ballast legs may be included with cargo = 0. Use official emission factors when required by your scheme.

Typical CF (tCO₂/t fuel): HFO≈3.114, LFO≈3.151, MGO≈3.206, LNG≈2.750, LPG≈3.000, Methanol≈1.375, Ethanol≈1.913, ULSFO≈3.151, Ammonia≈0.