Container ship · Marshall Islands flag · built 2001
MAERSK KLAIPEDA: CO₂ emissions 2018–2025
IMO 9211482 EU ETS8 reporting years
- CO₂ reported 2025
- 42,048 t
- Fuel burned
- 13,416 t
- Distance
- 60,270 nm
- Time at sea
- 3,990 h
- Emitted at berth
- 2% of total
- Share of year under way
- 46%
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MAERSK KLAIPEDA against its type
Built in 2001, it is 7 years older than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). It is one of 119 container ships here under the Marshall Islands flag, 3.4% of the 3,495 on the register. The same builder is recorded for 761 other vessels here, 355 of them container ships. Its MRV returns name it MAERSK KLAIPEDA for 2018–2020 and W KLAIPEDA for 2021–2025. The reported port of registry changed: Hong Kong (2018–2019), then Majuro (2020–2025).
Its 42,048 t of CO₂ for 2025 is 2.6 times the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 697.7 kg CO₂, 28% above the type median of 545.6 kg. It logged 3,990 hours at sea against a median of 3,155 hours for its type that year. 2.4% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 8 years with reported emissions, the highest was 2024 (61,449 t) and the lowest 2020 (675 t). Its efficiency percentile within the type went from 22 in 2021 to 47 in 2025 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 6 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 42,048 | 13,416 | 60,270 | 3,990 | 1,000 | 697.7 | 13.6 | 47 |
| 2024 | 61,449 | 19,774 | 87,325 | 5,356 | 133 | 703.7 | 9.3 | 24 |
| 2023 | 30,978 | 9,897 | 47,316 | 3,328 | 1,510 | 654.7 | 11.7 | 30 |
| 2022 | 41,227 | 13,154 | 56,422 | 3,810 | 2,319 | 730.7 | 11.5 | 28 |
| 2021 | 15,582 | 4,981 | 24,555 | 1,500 | 1,167 | 634.6 | 10.2 | 22 |
| 2020 | 675 | 216 | — | 140 | 87 | 731.8 | 16.9 | not ranked |
| 2019 | 1,885 | 603 | — | 423 | 218 | 644.4 | 17.7 | not ranked |
| 2018 | 1,326 | 425 | — | 244 | 48 | 664.0 | 18.9 | not ranked |
Vessel particulars
- IMO number
- 9211482
- Previously reported as
- W KLAIPEDA
- Ship type
- Container ship
- Length overall
- 200.0 m
- Year built
- 2001
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- HD Hyundai Heavy Industries
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (11.34 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-16
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 859 of 1,838 qualifying container ships by EEOI, at the 47th percentile. The dashed line is the type median, 14.2; this vessel reported 13.6.
EEOI divides emissions by transport work, which for this vessel and year was 3,103,194,834 tonne-miles over 60,270 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 3,071.2% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 31.6% while distance sailed fell 31.0%and CO₂ per nautical mile fell 0.9%.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
- 42,707 t
- Methane (CH₄)
- 0.67 t
- Nitrous oxide (N₂O)
- 2.41 t
- Under EU ETS
- 23,053 t, 55% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2020 | DNV | Germany |
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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 8 MRV reporting years, an efficiency ranking, 4 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.