Container ship · Liberia flag · built 1996
KOTKA: CO₂ emissions 2019–2025
IMO 9085534 EU ETS7 reporting years
- CO₂ reported 2025
- 14,589 t
- Fuel burned
- 4,678 t
- Distance
- 18,832 nm
- Time at sea
- 1,695 h
- Emitted at berth
- 4% of total
- Share of year under way
- 19%
- Gross tonnage
- 81,488
KOTKA against its type
Built in 1996, it is 12 years older than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 81,488 gross tonnage it is larger than 68% of the other 3,000 container ships with a recorded tonnage. It is one of 976 container ships here under the Liberia flag, 27.9% of the 3,495 on the register. The same builder is recorded for 64 other vessels here, 53 of them container ships. Its MRV returns name it MAERSK KOTKA for 2019–2022 and KOTKA for 2023–2025. The returns for 2019–2025 all give Monrovia as port of registry.
Its 14,589 t of CO₂ for 2025 is 11% below the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 774.7 kg CO₂, 42% above the type median of 545.6 kg. It logged 1,695 hours at sea against a median of 3,155 hours for its type that year. 4.2% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 7 years with reported emissions, the highest was 2021 (51,010 t) and the lowest 2024 (7,686 t). Its efficiency percentile within the type went from 40 in 2019 to 36 in 2025 (lower is more efficient).
Emissions by year2019–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 14,589 | 4,678 | 18,832 | 1,695 | 615 | 774.7 | 11.0 | 36 |
| 2024 | 7,686 | 2,465 | 11,939 | 773 | 26 | 643.7 | 8.9 | 22 |
| 2023 | 26,511 | 8,507 | 35,418 | 2,687 | 991 | 748.5 | 11.5 | 30 |
| 2022 | 40,356 | 12,947 | 45,333 | 2,842 | 6,032 | 890.2 | 15.9 | 47 |
| 2021 | 51,010 | 16,315 | 59,938 | 3,688 | 6,985 | 851.0 | 13.3 | 36 |
| 2020 | 27,627 | 8,772 | 28,117 | 1,686 | 4,406 | 982.6 | 17.8 | 58 |
| 2019 | 21,613 | 6,930 | 25,789 | 1,779 | 1,787 | 838.1 | 14.8 | 40 |
Vessel particulars
- IMO number
- 9085534
- Previously reported as
- MAERSK KOTKA
- Ship type
- Container ship
- Gross tonnage
- 81,488
- Length overall
- 318.2 m
- Beam
- 42.9 m
- Year built
- 1996
- Flag state
- Liberia per EU MRV 2025
- Builder
- Odense Steel Shipyard
- Port of registry
- Monrovia MRV 2025
- Home port
- Monrovia
- Technical efficiency (design)
- EEXI (11.3 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-02-14
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 665 of 1,838 qualifying container ships by EEOI, at the 36th percentile. The dashed line is the type median, 14.2; this vessel reported 11.0.
EEOI divides emissions by transport work, which for this vessel and year was 1,329,899,726 tonne-miles over 18,832 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 32.5% lower than in 2019, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 89.8% while distance sailed rose 57.7%and CO₂ per nautical mile rose 20.3%.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
- 14,819 t
- Methane (CH₄)
- 0.23 t
- Nitrous oxide (N₂O)
- 0.84 t
- Under EU ETS
- 8,629 t, 59% of total
Laden voyages2025
- CO₂ on laden voyages
- 13,970 t, 96% of total
- Fuel, laden
- 4,481 t
- CO₂ per nm, laden
- 741.8 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | HELLENIC LLOYD'S S.A. | Greece |
| 2024 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2019–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 7 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.