Container ship · Marshall Islands flag
LEONIDAS Z: CO₂ emissions 2024–2025
IMO 9963528 EU ETS2 reporting years
- CO₂ reported 2025
- 22,871 t
- Fuel burned
- 7,309 t
- Distance
- 66,481 nm
- Time at sea
- 4,438 h
- Emitted at berth
- 3% of total
- Share of year under way
- 51%
LEONIDAS Z against its type
It is one of 119 container ships here under the Marshall Islands flag, 3.4% of the 3,495 on the register. The returns for 2024–2025 all give Majuro as port of registry.
Its 22,871 t of CO₂ for 2025 is 40% above the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 344.0 kg CO₂, 37% below the type median of 545.6 kg. It logged 4,438 hours at sea against a median of 3,155 hours for its type that year. 3.4% of its 2025 emissions were at berth; the median for container ships was 3.2%. Its efficiency percentile within the type went from 54 in 2024 to 55 in 2025 (lower is more efficient). Of the 8 comparable vessels listed below with a 2025 return, 1 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2024–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 22,871 | 7,309 | 66,481 | 4,438 | 780 | 344.0 | 15.6 | 55 |
| 2024 | 9,388 | 3,007 | 32,011 | 2,171 | 133 | 293.3 | 16.5 | 54 |
Vessel particulars
- IMO number
- 9963528
- Ship type
- Container ship
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro MRV 2025
- Home port
- Majuro
- Technical efficiency (design)
- EEDI (9.96 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2026-03-26
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,010 of 1,838 qualifying container ships by EEOI, at the 55th percentile. The dashed line is the type median, 14.2; this vessel reported 15.6.
EEOI divides emissions by transport work, which for this vessel and year was 1,468,897,880 tonne-miles over 66,481 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 143.6% higher than in 2024, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 143.6% while distance sailed rose 107.7%and CO₂ per nautical mile rose 17.3%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 23,230 t
- Methane (CH₄)
- 0.37 t
- Nitrous oxide (N₂O)
- 1.32 t
- Under EU ETS
- 13,772 t, 60% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2024–2025, published by the European Commission.
This page draws on 2 MRV reporting years, an efficiency ranking and 1 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a licensed photograph, a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.