Container ship · Portugal flag · built 2011
ARIES J: CO₂ emissions 2018–2025
IMO 9514767 EU ETS8 reporting years
- CO₂ reported 2025
- 11,528 t
- Fuel burned
- 3,697 t
- Distance
- 58,511 nm
- Time at sea
- 3,737 h
- Emitted at berth
- 4% of total
- Share of year under way
- 43%
- Gross tonnage
- 10,585
ARIES J against its type
Built in 2011, it is 3 years newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 10,585 gross tonnage it is smaller than 87% of the other 3,000 container ships with a recorded tonnage. It is one of 307 container ships here under the Portugal flag, 8.8% of the 3,495 on the register. The reported port of registry changed: LIMASSOL (2018–2021), then MADEIRA (2022), then FUNCHAL (2023), then Madeira (2024–2025).
Its 11,528 t of CO₂ for 2025 is 30% 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 197.0 kg CO₂, 64% below the type median of 545.6 kg. It logged 3,737 hours at sea against a median of 3,155 hours for its type that year. 3.6% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 8 years with reported emissions, the highest was 2018 (19,211 t) and the lowest 2023 (6,102 t). Its efficiency percentile within the type went from 88 in 2018 to 90 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 0 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 | 11,528 | 3,697 | 58,511 | 3,737 | 421 | 197.0 | 37.8 | 90 |
| 2024 | 11,668 | 3,739 | 45,636 | 4,094 | 3,509 | 255.7 | 54.4 | 97 |
| 2023 | 6,102 | 1,954 | — | 2,104 | 125 | 240.3 | 58.3 | not ranked |
| 2022 | 9,463 | 2,980 | 40,374 | 3,472 | 745 | 234.4 | 42.4 | 89 |
| 2021 | 10,303 | 3,214 | 38,377 | 3,486 | 1,492 | 268.5 | 34.1 | 84 |
| 2020 | 16,421 | 5,184 | 58,713 | 5,263 | 902 | 279.7 | 38.6 | 88 |
| 2019 | 18,377 | 5,858 | 64,981 | 5,811 | 1,291 | 282.8 | 38.7 | 86 |
| 2018 | 19,211 | 6,152 | 73,986 | 5,847 | 846 | 259.7 | 42.8 | 88 |
Vessel particulars
- IMO number
- 9514767
- Ship type
- Container ship
- Gross tonnage
- 10,585
- Length overall
- 151.7 m
- Year built
- 2011
- Flag state
- Portugal per EU MRV 2025
- Port of registry
- Madeira MRV 2025
- Home port
- Madeira
- Ice class
- IA
- Technical efficiency (design)
- EEXI (22.29 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2026-03-27
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,662 of 1,838 qualifying container ships by EEOI, at the 90th percentile. The dashed line is the type median, 14.2; this vessel reported 37.8.
EEOI divides emissions by transport work, which for this vessel and year was 305,050,278 tonne-miles over 58,511 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 40.0% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 1.2% while distance sailed rose 28.2%and CO₂ per nautical mile fell 22.9%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 11,709 t
- Methane (CH₄)
- 0.18 t
- Nitrous oxide (N₂O)
- 0.67 t
- Under EU ETS
- 2,029 t, 18% of total
Laden voyages2025
- CO₂ on laden voyages
- 11,528 t, 100% of total
- Fuel, laden
- 3,697 t
- CO₂ per nm, laden
- 197.0 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | RINA Services Spa | Italy |
| 2022 | Dromon Bureau of Shipping | Greece |
| 2024 | RINA HELLAS 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 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 and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, 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.