TonneMiles

Container ship · Antigua and Barbuda flag · built 2006

ALDEBARAN J: CO₂ emissions 2018–2025

IMO 9349186 EU ETS5 reporting years

CO₂ reported 2025
6,629 t
Fuel burned
2,101 t
Time at sea
2,523 h
Emitted at berth
2% of total
Share of year under way
29%
Gross tonnage
8,273
ALDEBARAN J
Jens Dohrn, CC BY-SA 4.0 · File

ALDEBARAN J against its type

Built in 2006, it is 2 years older than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 8,273 gross tonnage it is smaller than 95% of the other 3,000 container ships with a recorded tonnage. It is one of 73 container ships here under the Antigua and Barbuda flag, 2.1% of the 3,495 on the register. The same builder is recorded for 35 other vessels here, 26 of them container ships. The returns for 2018–2025 all give SAINT-JOHN'S as port of registry.

Its 6,629 t of CO₂ for 2025 is 59% 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 223.8 kg CO₂, 59% below the type median of 545.6 kg. It logged 2,523 hours at sea against a median of 3,155 hours for its type that year. 1.6% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 5 years with reported emissions, the highest was 2020 (12,881 t) and the lowest 2025 (6,629 t). Its efficiency percentile within the type went from 97 in 2018 to 98 in 2021 (lower is more efficient). Of the 8 sister ships listed below with a 2025 return, 5 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 6,629 2,101 — 2,523 109 223.8 87.4 not ranked
2021 10,940 3,422 34,558 2,871 2,754 316.6 63.7 98
2020 12,881 4,030 44,998 3,811 1,956 286.3 54.4 96
2019 11,858 3,726 40,773 4,072 2,262 290.8 55.1 96
2018 11,341 3,626 40,320 3,886 1,935 281.3 59.6 97

Vessel particulars

IMO number
9349186
Ship type
Container ship
Gross tonnage
8,273
Length overall
139.6 m
Beam
22.4 m
Year built
2006
Flag state
Antigua and Barbuda per EU MRV 2025
Builder
Rolandwerft
Port of registry
SAINT-JOHN'S MRV 2025
Home port
SAINT-JOHN'S
Ice class
IA
Technical efficiency (design)
EEXI (25.44 gCO₂/t·nm)
Efficiency ranking
Not ranked: transport work below the floor (2025)
Verifier
RINA HELLAS LTD, Greece
Accreditation
1325
Compliance document issued
2026-03-02
Compliance document expires
2027-06-30

Reported CO₂ by year

2018: 11,341 t201811,3412019: 11,858 t20192020: 12,881 t20202021: 10,940 t20212025: 6,629 t20256,629

Reported CO₂ in 2025 was 41.6% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2022, 2023, 2024, so the series has gaps.

From 2021 to 2025, emissions fell 39.4% and CO₂ per nautical mile fell 29.3%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.

Where the 2025 emissions occurred

At berthAt berth: 109 t109Within EEA portsWithin EEA ports: 121 t121Voyages between EEA portsVoyages between EEA ports: 634 t634Voyages to an EEA portVoyages to an EEA port: 3,292 t3,292Voyages from an EEA portVoyages from an EEA port: 2,582 t2,582Laden voyagesLaden voyages: 6,629 t6,629

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
6,732 t
Methane (CH₄)
0.11 t
Nitrous oxide (N₂O)
0.38 t
Under EU ETS
3,675 t, 55% of total

Laden voyages2025

CO₂ on laden voyages
6,629 t, 100% of total
Fuel, laden
2,101 t
CO₂ per nm, laden
223.8 kg

The rest of the 2025 total was emitted on ballast legs or at berth.

Verifier history

From reporting yearVerifierAccredited in
2018RINA Services SpaItaly
2025RINA HELLAS LTDGreece

A change of verifier is not in itself a sign of anything being wrong.

Sources and how to read this

This page draws on 5 MRV reporting years, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, 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.

Comparable vesselssister ships and nearest by tonnage