Passenger ship · Portugal flag · built 2021
OCEAN EXPLORER: CO₂ emissions 2022–2025
IMO 9883194 EU ETS4 reporting years
- CO₂ reported 2025
- 2,635 t
- Fuel burned
- 822 t
- Time at sea
- 1,090 h
- Emitted at berth
- 43% of total
- Share of year under way
- 12%
- Gross tonnage
- 8,228
OCEAN EXPLORER against its type
Built in 2021, it is 15 years newer than the median passenger ship on this register, which was built in 2006 (127 vessels with a known build year). At 8,228 gross tonnage it is smaller than 91% of the other 117 passenger ships with a recorded tonnage. It is one of 9 passenger ships here under the Portugal flag, 6.8% of the 132 on the register. The reported port of registry changed: Nassau (2022), then Madeira (2023–2025).
Its 2,635 t of CO₂ for 2025 is 63% below the median of 7,055 t among the 32 passenger ships on this register that reported for 2025. Per nautical mile it emitted 264.5 kg CO₂, close to the type median of 248.9 kg. It logged 1,090 hours at sea against a median of 2,827 hours for its type that year. 43.5% of its 2025 emissions were at berth; the median for passenger ships was 12.8%. Across 4 years with reported emissions, the highest was 2023 (3,236 t) and the lowest 2024 (1,169 t). Of the 3 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 | 2,635 | 822 | — | 1,090 | 1,146 | 264.5 | — | — |
| 2024 | 1,169 | 364 | — | 719 | 217 | 186.5 | — | — |
| 2023 | 3,236 | 1,009 | — | 1,334 | 36 | 230.6 | — | — |
| 2022 | 2,708 | 845 | — | 1,260 | 19 | 205.2 | — | — |
Vessel particulars
- IMO number
- 9883194
- Ship type
- Passenger ship
- Gross tonnage
- 8,228
- Length overall
- 104.4 m
- Year built
- 2021
- Flag state
- Portugal 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. - Port of registry
- Madeira MRV 2025
- Home port
- Madeira
- Ice class
- PC6
- Technical efficiency (design)
- EEDI (22 gCO₂/t·nm)
- Verifier
- Bureau Veritas Certification France, France
- Accreditation
- 3-2047 rev. 4
- Compliance document issued
- 2026-03-31
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 2.7% lower than in 2022, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 125.5% and CO₂ per nautical mile rose 41.9%.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
- 2,675 t
- Methane (CH₄)
- 0.04 t
- Nitrous oxide (N₂O)
- 0.15 t
- Under EU ETS
- 1,890 t, 72% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2022 | RINA HELLAS LTD | Greece |
| 2023 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2024 | Bureau Veritas Certification France | France |
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 2022–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 4 MRV reporting years and 4 of 5 vessel particulars. Not found in the sources for this vessel: an efficiency ranking, 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.