Chemical tanker · Cyprus flag
STENA PROMISE: CO₂ emissions 2023–2025
IMO 9923748 EU ETS3 reporting years
- CO₂ reported 2025
- 10,856 t
- Fuel burned
- 6,137 t
- Distance
- 47,229 nm
- Time at sea
- 4,231 h
- Emitted at berth
- 5% of total
- Share of year under way
- 48%
STENA PROMISE against its type
It is one of 27 chemical tankers here under the Cyprus flag, 1.2% of the 2,344 on the register. The returns for 2023–2025 all give Limassol as port of registry.
Its 10,856 t of CO₂ for 2025 is 2.0 times the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 229.9 kg CO₂, close to the type median of 250.2 kg. It logged 4,231 hours at sea against a median of 2,106 hours for its type that year. 5.3% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 3 years with reported emissions, the highest was 2025 (10,856 t) and the lowest 2023 (4,531 t). Its efficiency percentile within the type went from 8 in 2023 to 24 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 4 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 | 10,856 | 6,137 | 47,229 | 4,231 | 576 | 229.9 | 9.8 | 24 |
| 2024 | 7,357 | 3,942 | 35,172 | 3,019 | 393 | 209.2 | 7.9 | 8 |
| 2023 | 4,531 | 2,573 | 20,540 | 1,667 | 216 | 220.6 | 8.6 | 8 |
Vessel particulars
- IMO number
- 9923748
- Ship type
- Chemical tanker
- Flag state
- Cyprus per EU MRV 2025
- Port of registry
- Limassol MRV 2025
- Technical efficiency (design)
- EEXI (3.88 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-26
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 319 of 1,348 qualifying chemical tankers by EEOI, at the 24th percentile. The dashed line is the type median, 14.4; this vessel reported 9.8.
EEOI divides emissions by transport work, which for this vessel and year was 1,107,766,326 tonne-miles over 47,229 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 139.6% higher than in 2023, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 47.6% while distance sailed rose 34.3%and CO₂ per nautical mile rose 9.9%.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
- 11,157 t
- Methane (CH₄)
- 0.31 t
- Nitrous oxide (N₂O)
- 1.10 t
- Under EU ETS
- 6,313 t, 58% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2023–2025, published by the European Commission.
This page draws on 3 MRV reporting years, an efficiency ranking and 1 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.