Vehicle carrier · Japan flag · built 2007
SWALLOW ACE: CO₂ emissions 2018–2025
IMO 9338620 EU ETS7 reporting years
- CO₂ reported 2025
- 5,739 t
- Fuel burned
- 1,836 t
- Distance
- 16,957 nm
- Time at sea
- 1,052 h
- Emitted at berth
- 2% of total
- Share of year under way
- 12%
- Gross tonnage
- 58,685
SWALLOW ACE against its type
Built in 2007, it is 1 year older than the median vehicle carrier on this register, which was built in 2008 (595 vessels with a known build year). At 58,685 gross tonnage it is smaller than 53% of the other 571 vehicle carriers with a recorded tonnage. It is one of 66 vehicle carriers here under the Japan flag, 9.3% of the 713 on the register. The same builder is recorded for 69 other vessels here, 28 of them vehicle carriers. The reported port of registry changed: NASSAU (2018–2021), then TOKYO (2022–2025).
Its 5,739 t of CO₂ for 2025 is 19% below the median of 7,074 t among the 514 vehicle carriers on this register that reported for 2025. Per nautical mile it emitted 338.4 kg CO₂, close to the type median of 309.1 kg. It logged 1,052 hours at sea against a median of 1,639 hours for its type that year. 2.4% of its 2025 emissions were at berth; the median for vehicle carriers was 3.1%. Across 7 years with reported emissions, the highest was 2024 (11,724 t) and the lowest 2023 (2,796 t). Its efficiency percentile within the type went from 56 in 2018 to 55 in 2025 (lower is more efficient). Of the 8 sister ships listed below with a 2025 return, 7 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 | 5,739 | 1,836 | 16,957 | 1,052 | 139 | 338.4 | 54.1 | 55 |
| 2024 | 11,724 | 3,762 | — | 2,256 | 0 | 330.5 | — | — |
| 2023 | 2,796 | 886 | 9,349 | 594 | 58 | 299.0 | 50.6 | 41 |
| 2022 | 6,986 | 2,214 | 22,884 | 1,421 | 151 | 305.3 | 53.7 | 46 |
| 2021 | 4,182 | 1,324 | 14,693 | 896 | 118 | 284.6 | 59.5 | 53 |
| 2019 | 5,724 | 1,825 | 18,138 | 1,227 | 237 | 315.6 | 73.4 | 72 |
| 2018 | 8,647 | 2,762 | 26,828 | 1,739 | 178 | 322.3 | 64.3 | 56 |
Vessel particulars
- IMO number
- 9338620
- Ship type
- Vehicle carrier
- Gross tonnage
- 58,685
- Length overall
- 200.0 m
- Year built
- 2007
- Flag state
- Japan per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Bahamas. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- Minaminippon Shipbuilding
- Port of registry
- Tokyo MRV 2025
- Technical efficiency (design)
- EEXI (14.92 gCO₂/t·nm)
- Verifier
- Nippon Kaiji Kyokai, Japan
- Accreditation
- VS-21325-01
- Compliance document issued
- 2026-03-06
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 233 of 423 qualifying vehicle carriers by EEOI, at the 55th percentile. The dashed line is the type median, 51.7; this vessel reported 54.1.
EEOI divides emissions by transport work, which for this vessel and year was 106,002,401 tonne-miles over 16,957 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 33.6% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2020, so the series has gaps.
From 2024 to 2025, emissions fell 51.1% and CO₂ per nautical mile rose 2.4%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 5,829 t
- Methane (CH₄)
- 0.09 t
- Nitrous oxide (N₂O)
- 0.33 t
- Under EU ETS
- 3,257 t, 57% of total
Laden voyages2025
- CO₂ on laden voyages
- 5,600 t, 98% of total
- Fuel, laden
- 1,793 t
The rest of the 2025 total was emitted on ballast legs or at berth.
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).
This page draws on 7 MRV reporting years, an efficiency ranking and 5 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.