Ro-pax ship · Sweden flag · built 1988
HUCKLEBERRY FINN: CO₂ emissions 2018–2025
IMO 8618358 EU ETS8 reporting years
- CO₂ reported 2025
- 32,640 t
- Fuel burned
- 10,358 t
- Time at sea
- 6,200 h
- Emitted at berth
- 6% of total
- Share of year under way
- 71%
- Gross tonnage
- 26,391
HUCKLEBERRY FINN against its type
Built in 1988, it is 12 years older than the median ro-pax ship on this register, which was built in 2000 (483 vessels with a known build year). At 26,391 gross tonnage it is larger than 58% of the other 470 ro-pax ships with a recorded tonnage. It is one of 20 ro-pax ships here under the Sweden flag, 4.1% of the 493 on the register. The same builder is recorded for 29 other vessels here, 15 of them ro-pax ships. TT-Line is linked to 6 vessels on this register. The returns for 2018–2025 all give Trelleborg as port of registry.
Its 32,640 t of CO₂ for 2025 is close to the median of 30,062 t among the 417 ro-pax ships on this register that reported for 2025. Per nautical mile it emitted 415.9 kg CO₂, 11% below the type median of 467.6 kg. It logged 6,200 hours at sea against a median of 4,243 hours for its type that year. 6.5% of its 2025 emissions were at berth; the median for ro-pax ships was 6.7%. Across 8 years with reported emissions, the highest was 2021 (37,783 t) and the lowest 2024 (29,261 t). Of the 5 sister ships listed below with a 2025 return, 0 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 | 32,640 | 10,358 | — | 6,200 | 2,114 | 415.9 | — | — |
| 2024 | 29,261 | 9,284 | — | 5,229 | 2,960 | 401.7 | — | — |
| 2023 | 30,154 | 9,569 | — | 5,685 | 3,343 | 406.3 | — | — |
| 2022 | 33,213 | 10,540 | — | 5,857 | 2,016 | 389.7 | — | — |
| 2021 | 37,783 | 11,990 | — | 6,292 | 2,441 | 403.9 | — | — |
| 2020 | 34,467 | 10,938 | — | 6,135 | 2,428 | 386.3 | — | — |
| 2019 | 33,936 | 10,770 | — | 6,136 | 2,420 | 408.6 | — | — |
| 2018 | 37,046 | 11,756 | — | 6,179 | 2,782 | 439.1 | — | — |
Vessel particulars
- IMO number
- 8618358
- Ship type
- Ro-pax ship
- Gross tonnage
- 26,391
- Length overall
- 177.2 m
- Year built
- 1988
- Flag state
- Sweden per EU MRV 2025
- Builder
- Schichau Seebeckwerft
- Port of registry
- Trelleborg MRV 2025
- Home port
- Trelleborg
- Ice class
- IA
- Technical efficiency (design)
- EEXI (25.93 gCO₂/t·nm)
- Operator
- TT-Line
- Verifier
- NORMEC VERIFAVIA SAS, France
- Accreditation
- 3-2127
- Compliance document issued
- 2026-03-30
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 11.9% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 11.5% and CO₂ per nautical mile rose 3.5%.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
- 33,149 t
- Methane (CH₄)
- 0.52 t
- Nitrous oxide (N₂O)
- 1.86 t
- Under EU ETS
- 32,640 t, 100% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | DNV | Germany |
| 2020 | NORMEC VERIFAVIA SAS | France |
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) and Wikimedia Commons.
This page draws on 8 MRV reporting years, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, AIS movements in Norwegian waters, a name history, 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.