Ro-pax ship · Greece flag · built 1975
AQUA BLUE: CO₂ emissions 2022–2025
IMO 7429669 EU ETS4 reporting years
- CO₂ reported 2025
- 14,996 t
- Fuel burned
- 4,678 t
- Time at sea
- 2,209 h
- Share of year under way
- 25%
AQUA BLUE against its type
Built in 1975, it is 25 years older than the median ro-pax ship on this register, which was built in 2000 (483 vessels with a known build year). It is one of 48 ro-pax ships here under the Greece flag, 9.7% of the 493 on the register. The same builder is recorded for 96 other vessels here, 3 of them ro-pax ships. The returns for 2022–2025 all give piraeus as port of registry.
Its 14,996 t of CO₂ for 2025 is 50% below the median of 30,062 t among the 417 ro-pax ships on this register that reported for 2025. Per nautical mile it emitted 399.4 kg CO₂, 15% below the type median of 467.6 kg. It logged 2,209 hours at sea against a median of 4,243 hours for its type that year. 0.0% of its 2025 emissions were at berth; the median for ro-pax ships was 6.7%. Across 4 years with reported emissions, the highest was 2022 (23,603 t) and the lowest 2025 (14,996 t). Of the 7 comparable vessels listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2022–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 14,996 | 4,678 | — | 2,209 | 0 | 399.4 | — | — |
| 2024 | 15,750 | 5,023 | — | 2,265 | 0 | 306.5 | — | — |
| 2023 | 21,909 | 6,980 | — | 3,752 | 0 | 401.4 | — | — |
| 2022 | 23,603 | 7,406 | — | 5,147 | 0 | 330.1 | — | — |
Vessel particulars
- IMO number
- 7429669
- Ship type
- Ro-pax ship
- Length overall
- 137.0 m
- Year built
- 1975
- Flag state
- Greece per EU MRV 2025
- Builder
- Tsuneishi Kure Dock
- Port of registry
- piraeus MRV 2025
- Technical efficiency (design)
- EIV (69.2 gCO₂/t·nm)
- Verifier
- EMICERT, Greece
- Accreditation
- 874-4
- Compliance document issued
- 2026-04-30
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 36.5% lower than in 2022, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 4.8% and CO₂ per nautical mile rose 30.3%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 15,226 t
- Methane (CH₄)
- 0.23 t
- Nitrous oxide (N₂O)
- 0.84 t
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2022–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 4 MRV reporting years, 4 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.