Chemical tanker · Portugal flag
SWAN BALTIC: CO₂ emissions 2024–2025
IMO 9466910 MMSI 255915690EU ETS2 reporting years
- CO₂ reported 2025
- 5,406 t
- Fuel burned
- 1,705 t
- Distance
- 27,772 nm
- Time at sea
- 3,436 h
- Emitted at berth
- 10% of total
- Share of year under way
- 39%
SWAN BALTIC 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 5,406 t of CO₂ for 2025 is close to the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 194.7 kg CO₂, 22% below the type median of 250.2 kg. It logged 3,436 hours at sea against a median of 2,106 hours for its type that year. 9.9% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Its efficiency percentile within the type went from 91 in 2024 to 100 in 2025 (lower is more efficient). Of the 8 comparable vessels listed below with a 2025 return, 3 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 | 5,406 | 1,705 | 27,772 | 3,436 | 537 | 194.7 | 73.9 | 100 |
| 2024 | 5,924 | 1,875 | 38,178 | 4,097 | 242 | 155.2 | 40.6 | 91 |
Vessel particulars
- IMO number
- 9466910
- MMSI
- 255915690
- Call sign
- CQ2148
- 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 (14.08 gCO₂/t·nm)
- Verifier
- Swiss Climate EcoCare GmbH, Germany
- Accreditation
- D-VS-20810-01
- Compliance document issued
- 2026-02-11
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,342 of 1,348 qualifying chemical tankers by EEOI, at the 100th percentile. The dashed line is the type median, 14.4; this vessel reported 73.9.
EEOI divides emissions by transport work, which for this vessel and year was 73,147,341 tonne-miles over 27,772 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 8.7% lower than in 2024, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 8.7% while distance sailed fell 27.3%and CO₂ per nautical mile rose 25.4%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 5,490 t
- Methane (CH₄)
- 0.09 t
- Nitrous oxide (N₂O)
- 0.31 t
- Under EU ETS
- 5,135 t, 95% of total
Observed movementsAIS · Norwegian waters
- First seen
- 01 Dec 2025
- Last seen
- 30 Jun 2026
- Days observed
- 50
- Positions
- 4,937
- Median speed
- 10.9 kn
Its recorded positions span 58.0°N to 69.8°N and 4.4°E to 19.8°E.
400 hourly points from 4,937 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, an efficiency ranking, 2 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.