Container ship · Panama flag · built 2017

NYK SWAN

IMO 9741437 5 reporting years

CO₂ reported 2022: 8,126 t
Fuel burned: 2,588 t
Distance: 11,093 nm
Time at sea: 849 h
Emitted at berth: 19% of total
Share of year under way: 10%
Gross tonnage: 144,277

Vessel particulars

IMO number: 9741437
Previously reported as: ONE SWAN
Ship type: Container ship
Gross tonnage: 144,277
Length overall: 364.0 m
Year built: 2017
Flag state: Panama
Builder: Japan Marine United Corporation
Port of registry: Panama
Home port: Panama
Technical efficiency (design): EIV (5.86 gCO₂/t·nm)
Operator: Columbia Shipmanagement Ltd.
Verifier: AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
Accreditation: 1083-2
Compliance document issued: 2023-06-15
Compliance document expires: 2024-06-30

Flag state is derived from rapportert, not reported directly, and reflects the registry at the time of reporting.

Efficiency against its own type2022

Position 65 of 1,589 qualifying container ships by EEOI, at the 4th percentile. The dashed line is the type median, 16.9; this vessel reported 6.3.

Across the 37 ranked vessels operated by Columbia Shipmanagement Ltd., the median percentile is 67. This vessel is more efficient than its own fleet median.

EEOI divides emissions by transport work, which for this vessel and year was 1,283,791,469 tonn-nmover 11,093 nautical miles.

Reported CO₂ by year

Between 2018 and 2022 reported CO₂ fell by 79.6%.

From 2021 to 2022, emissions rose 225.6% while distance sailed fell 24.0%and CO₂ per nautical mile rose 328.5%.That points mainly to how efficiently it sailed, rather than the other.

Annual returns2018–2022

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2022	8,126	2,588	11,093	849	1,531	732.6	6.3	4
2021	2,496	778	14,599	1,016	927	171.0	1.4	0
2020	7,888	2,522	11,179	710	408	705.6	6.1	5
2019	33,760	10,835	45,455	2,831	1,453	742.7	6.7	6
2018	39,918	12,809	57,805	3,750	1,299	690.6	7.5	6

Where the 2022 emissions occurred

Laden voyages2022

CO₂ on laden voyages: 6,596 t, 81% of total
Fuel, laden: 2,109 t
CO₂ per nm, laden: 594.6 kg

The share carried on laden voyages separates productive sailing from ballast legs. For tankers, bulkers and ro-ro vessels that split is the operational question; a low laden share means the ship spent much of the year moving empty.

Sources and how to read this

Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2022, published by the European Commission.
Vessel particulars: Wikidata (CC0).

What this page is built on

Reporting years: 5
Ranked by efficiency: yes
Vessel particulars: 5 of 5
Movement data: not observed
Name history: yes
Photograph: none licensed
Sanctions record: none
Inspection record: none in US waters

Caveats that apply to every vessel page

EEOI above 100,000 is withheld. Those values come from returns where reported transport work is near zero, which makes the ratio meaningless rather than extreme. Median across the dataset is around 12.

Emission categories overlap. In the MRV return, emissions at berth are also counted inside the voyage legs, so the categories do not sum to the total. They are shown side by side rather than stacked for that reason.

Distance is derived, intensity is reported. The MRV return publishes CO₂ per nautical mile but not the distance itself, which is null in all 106,564 rows of the source. The distance column is therefore filled from the ranking step, which reconstructs it, and is blank for years where a vessel was not ranked. That is why a row can show an intensity without a distance.

Percentile is within type and year. It is the vessel's position among qualifying ships of the same type that year, where lower is more efficient. A blank means the vessel did not qualify for ranking that year.

Sister ships share a builder, a type and a build year within two years of this vessel. That holds hull and machinery roughly constant and leaves operation as the variable, which is why they are listed before nearest-by-tonnage.

Methane and nitrous oxide start in 2024. They were not reported before that period, so earlier years cannot be compared against them.

Technical efficiency is a design figure fixed at construction. A vessel can hold a good index and still emit heavily by sailing fast, waiting at anchor or carrying little.

Inspection records cover United States waters only. An empty record is not evidence of a clean history elsewhere.

Empty means unreported, never zero. Nothing here is modelled, estimated or interpolated. See the methodology.

Something wrong on this page? See corrections. We do not hold the source registers and cannot amend them, but we will fix anything we have got wrong in reproducing them.