Bulk carrier · Portugal flag · built 2011
IMPERIUS: CO₂ emissions 2023–2025
IMO 9403504 EU ETS2 reporting years
- CO₂ reported 2025
- 9,904 t
- Fuel burned
- 3,148 t
- Distance
- 18,770 nm
- Time at sea
- 1,863 h
- Emitted at berth
- 1% of total
- Share of year under way
- 21%
- Gross tonnage
- 93,196
IMPERIUS against its type
Built in 2011, it is 1 year older than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 93,196 gross tonnage it is larger than 94% of the other 6,571 bulk carriers with a recorded tonnage. It is one of 157 bulk carriers here under the Portugal flag, 1.9% of the 8,138 on the register. The same builder is recorded for 196 other vessels here, 94 of them bulk carriers. The reported port of registry changed: Douglas (2023), then Madeira (2025).
Its 9,904 t of CO₂ for 2025 is 3.1 times the median of 3,238 t among the 3,732 bulk carriers on this register that reported for 2025. Per nautical mile it emitted 527.7 kg CO₂, 2.0 times the type median of 260.7 kg. It logged 1,863 hours at sea against a median of 1,199 hours for its type that year. 1.4% of its 2025 emissions were at berth; the median for bulk carriers was 3.7%. Its efficiency percentile within the type went from 1 in 2023 to 10 in 2025 (lower is more efficient). Of the 3 sister ships listed below with a 2025 return, 3 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2023–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 9,904 | 3,148 | 18,770 | 1,863 | 134 | 527.7 | 4.7 | 10 |
| 2023 | 7,001 | 2,234 | 15,336 | 1,368 | 113 | 456.5 | 3.0 | 1 |
Vessel particulars
- IMO number
- 9403504
- Ship type
- Bulk carrier
- Gross tonnage
- 93,196
- Length overall
- 292.0 m
- Beam
- 45.0 m
- Year built
- 2011
- Flag state
- Portugal per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list United Kingdom. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- Madeira MRV 2025
- Technical efficiency (design)
- EEXI (2.4 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-03-24
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 323 of 3,241 qualifying bulk carriers by EEOI, at the 10th percentile. The dashed line is the type median, 7.6; this vessel reported 4.7.
EEOI divides emissions by transport work, which for this vessel and year was 2,093,926,004 tonne-miles over 18,770 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 41.5% higher than in 2023, for EU/EEA voyages only. No return is recorded for 2024, so the series has gaps.
From 2023 to 2025, emissions rose 41.5% while distance sailed rose 22.4%and CO₂ per nautical mile rose 15.6%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 10,059 t
- Methane (CH₄)
- 0.16 t
- Nitrous oxide (N₂O)
- 0.57 t
- Under EU ETS
- 5,346 t, 54% of total
Laden voyages2025
- CO₂ on laden voyages
- 9,117 t, 92% of total
- Fuel, laden
- 2,901 t
- CO₂ per nm, laden
- 520.2 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2023 | Bureau Veritas Certification France | France |
| 2025 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. 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 2023–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 2 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.