Chemical tanker · Portugal flag
SWAN BISCAY: CO₂ emissions 2024–2025
IMO 9466532 MMSI 255915691EU ETS2 reporting years
- CO₂ reported 2025
- 1,759 t
- Fuel burned
- 560 t
- Time at sea
- 1,258 h
- Emitted at berth
- 4% of total
- Share of year under way
- 14%
SWAN BISCAY against its type
It is one of 71 chemical tankers here under the Portugal flag, 3.0% of the 2,344 on the register. The returns for 2024–2025 all give Madeira as port of registry.
Its 1,759 t of CO₂ for 2025 is 68% below the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 145.7 kg CO₂, 42% below the type median of 250.2 kg. It logged 1,258 hours at sea against a median of 2,106 hours for its type that year. 3.6% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Of the 6 comparable vessels listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2024–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 1,759 | 560 | — | 1,258 | 64 | 145.7 | 46.4 | not ranked |
| 2024 | 8,056 | 2,562 | 52,660 | 5,679 | 394 | 153.0 | 44.5 | 94 |
Vessel particulars
- IMO number
- 9466532
- MMSI
- 255915691
- Call sign
- CQ2149
- Ship type
- Chemical tanker
- Length overall
- 116.0 m
- Beam
- 18.0 m
- Flag state
- Portugal per EU MRV 2025
- Port of registry
- Madeira MRV 2025
- Home port
- Madeira
- Technical efficiency (design)
- EEXI (14.09 gCO₂/t·nm)
- Efficiency ranking
- Not ranked: transport work below the floor (2025)
- Verifier
- Swiss Climate EcoCare GmbH, Germany
- Accreditation
- D-VS-20810-01
- Compliance document issued
- 2026-02-12
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 78.2% lower than in 2024, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 78.2% and CO₂ per nautical mile fell 4.7%.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
- 1,787 t
- Methane (CH₄)
- 0.03 t
- Nitrous oxide (N₂O)
- 0.10 t
- Under EU ETS
- 1,409 t, 80% of total
Observed movementsAIS · Norwegian waters
- First seen
- 24 Mar 2026
- Last seen
- 20 Jul 2026
- Days observed
- 30
- Positions
- 3,412
- Median speed
- 9.8 kn
Its recorded positions span 58.0°N to 69.8°N and 4.4°E to 19.4°E.
400 hourly points from 3,412 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
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.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2024–2025, published by the European Commission.
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 2 MRV reporting years, 2 of 5 vessel particulars and AIS movements in Norwegian waters. Not found in the sources for this vessel: an efficiency ranking, 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.