Chemical tanker · Malta flag · built 2015
STENA IMPERIAL: CO₂ emissions 2018–2025
IMO 9667485 MMSI 229748000EU ETS7 reporting years
- CO₂ reported 2025
- 8,219 t
- Fuel burned
- 2,622 t
- Distance
- 28,645 nm
- Time at sea
- 2,532 h
- Emitted at berth
- 4% of total
- Share of year under way
- 29%
- Gross tonnage
- 29,680
STENA IMPERIAL against its type
Built in 2015, it is 5 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,680 gross tonnage it is larger than 80% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 218 chemical tankers here under the Malta flag, 9.3% of the 2,344 on the register. The same builder is recorded for 192 other vessels here, 87 of them chemical tankers. The returns for 2021–2025 all give Valletta as port of registry.
Its 8,219 t of CO₂ for 2025 is 49% above the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 286.9 kg CO₂, 15% above the type median of 250.2 kg. It logged 2,532 hours at sea against a median of 2,106 hours for its type that year. 4.1% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 7 years with reported emissions, the highest was 2022 (12,143 t) and the lowest 2019 (5,670 t). Its efficiency percentile within the type went from 3 in 2018 to 14 in 2025 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 3 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 | 8,219 | 2,622 | 28,645 | 2,532 | 336 | 286.9 | 8.5 | 14 |
| 2024 | 7,522 | 2,405 | 24,404 | 2,361 | 318 | 308.2 | 9.9 | 20 |
| 2023 | 10,467 | 3,341 | 36,603 | 3,275 | 519 | 286.0 | 11.3 | 25 |
| 2022 | 12,143 | 3,867 | 35,002 | 3,786 | 1,265 | 346.9 | 18.5 | 61 |
| 2021 | 6,267 | 1,994 | 20,448 | 1,867 | 617 | 306.5 | 13.7 | 36 |
| 2019 | 5,670 | 1,808 | 21,780 | 2,884 | 333 | 260.3 | 12.4 | 28 |
| 2018 | 6,350 | 2,030 | 21,230 | 2,087 | 458 | 299.1 | 7.7 | 3 |
Vessel particulars
- IMO number
- 9667485
- MMSI
- 229748000
- Ship type
- Chemical tanker
- Gross tonnage
- 29,680
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2015
- Flag state
- Malta per EU MRV 2025
- Port of registry
- Valletta MRV 2025
- Technical efficiency (design)
- EEXI (4.49 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-06
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 196 of 1,348 qualifying chemical tankers by EEOI, at the 14th percentile. The dashed line is the type median, 14.4; this vessel reported 8.5.
EEOI divides emissions by transport work, which for this vessel and year was 962,364,169 tonne-miles over 28,645 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 29.4% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2020, so the series has gaps.
From 2024 to 2025, emissions rose 9.3% while distance sailed rose 17.4%and CO₂ per nautical mile fell 6.9%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 8,347 t
- Methane (CH₄)
- 0.13 t
- Nitrous oxide (N₂O)
- 0.47 t
- Under EU ETS
- 4,811 t, 59% of total
Observed movementsAIS · Norwegian waters
- First seen
- 02 Aug 2025
- Last seen
- 04 Aug 2025
- Days observed
- 3
- Positions
- 110
- Median speed
- 10.3 kn
Its recorded positions span 60.7°N to 60.9°N and 4.4°E to 5.1°E.
52 hourly points from 110 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2021 | DNV | Germany |
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).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 7 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and AIS movements in Norwegian waters. Not found in the sources for this vessel: 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.