Chemical tanker · United Kingdom flag · built 2016
STENA IMMORTAL: CO₂ emissions 2018–2025
IMO 9685475 EU ETS8 reporting years
- CO₂ reported 2025
- 8,159 t
- Fuel burned
- 2,606 t
- Distance
- 29,044 nm
- Time at sea
- 2,779 h
- Emitted at berth
- 4% of total
- Share of year under way
- 32%
- Gross tonnage
- 29,680
STENA IMMORTAL against its type
Built in 2016, it is 6 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 8 chemical tankers here under the United Kingdom flag, 0.3% of the 2,344 on the register. The same builder is recorded for 192 other vessels here, 87 of them chemical tankers. The reported port of registry changed: Hamilton (2020–2021), then London (2022–2025).
Its 8,159 t of CO₂ for 2025 is 47% above the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 280.9 kg CO₂, 12% above the type median of 250.2 kg. It logged 2,779 hours at sea against a median of 2,109 hours for its type that year. 3.6% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2021 (8,708 t) and the lowest 2020 (3,040 t). Its efficiency percentile within the type went from 6 in 2018 to 21 in 2025 (lower is more efficient). Of the 5 sister ships listed below with a 2025 return, 2 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 | 8,159 | 2,606 | 29,044 | 2,779 | 297 | 280.9 | 9.3 | 21 |
| 2024 | 7,168 | 2,289 | 23,620 | 1,942 | 370 | 303.5 | 9.1 | 15 |
| 2023 | 8,704 | 2,780 | 28,292 | 2,576 | 583 | 307.6 | 8.2 | 6 |
| 2022 | 3,494 | 1,112 | 12,126 | 925 | 257 | 288.1 | 8.6 | 8 |
| 2021 | 8,708 | 2,775 | 28,952 | 2,572 | 792 | 300.8 | 10.2 | 15 |
| 2020 | 3,040 | 965 | 10,994 | 927 | 272 | 276.5 | 7.5 | 4 |
| 2019 | 3,358 | 1,071 | 10,333 | 922 | 588 | 325.0 | 9.5 | 12 |
| 2018 | 6,745 | 2,155 | 25,914 | 2,303 | 278 | 260.3 | 8.4 | 6 |
Vessel particulars
- IMO number
- 9685475
- Ship type
- Chemical tanker
- Gross tonnage
- 29,680
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2016
- Flag state
- United Kingdom per EU MRV 2025
- Port of registry
- London MRV 2025
- Technical efficiency (design)
- EEXI (4.26 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-01-28
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 284 of 1,348 qualifying chemical tankers by EEOI, at the 21st percentile. The dashed line is the type median, 14.4; this vessel reported 9.3.
EEOI divides emissions by transport work, which for this vessel and year was 879,150,862 tonne-miles over 29,044 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 21.0% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 13.8% while distance sailed rose 23.0%and CO₂ per nautical mile fell 7.4%.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
- 8,286 t
- Methane (CH₄)
- 0.13 t
- Nitrous oxide (N₂O)
- 0.47 t
- Under EU ETS
- 5,412 t, 66% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | 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).
This page draws on 8 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.