Ro-ro ship · Tunisia flag
ULYSSE: CO₂ emissions 2018–2025
IMO 9142459 EU ETS8 reporting years
- CO₂ reported 2025
- 13,531 t
- Fuel burned
- 4,298 t
- Distance
- 37,129 nm
- Time at sea
- 2,391 h
- Emitted at berth
- 8% of total
- Share of year under way
- 27%
ULYSSE against its type
It is one of 4 ro-ro ships here under the Tunisia flag, 1.3% of the 311 on the register. The same builder is recorded for 29 other vessels here, one of them a ro-ro ship. The returns for 2018–2025 all give La Goulette as port of registry.
Its 13,531 t of CO₂ for 2025 is 37% below the median of 21,362 t among the 238 ro-ro ships on this register that reported for 2025. Per nautical mile it emitted 364.4 kg CO₂, 11% above the type median of 327.0 kg. It logged 2,391 hours at sea against a median of 4,872 hours for its type that year. 8.0% of its 2025 emissions were at berth; the median for ro-ro ships was 4.3%. Across 8 years with reported emissions, the highest was 2023 (26,755 t) and the lowest 2019 (750 t). Its efficiency percentile within the type went from 92 in 2018 to 91 in 2025 (lower is more efficient). Of the 4 comparable vessels listed below with a 2025 return, 4 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 | 13,531 | 4,298 | 37,129 | 2,391 | 1,088 | 364.4 | 211.5 | 91 |
| 2024 | 25,257 | 8,101 | 75,521 | 4,886 | 955 | 334.4 | 220.9 | 91 |
| 2023 | 26,755 | 8,584 | 77,404 | 4,788 | 758 | 345.7 | 213.7 | 92 |
| 2022 | 22,277 | 7,146 | 65,588 | 4,349 | 474 | 339.7 | 189.1 | 89 |
| 2021 | 24,775 | 7,942 | 72,354 | 4,611 | 735 | 342.4 | 197.1 | 87 |
| 2020 | 24,235 | 7,759 | 70,665 | 4,601 | 648 | 343.0 | 196.0 | 86 |
| 2019 | 750 | 240 | — | 134 | 62 | 393.4 | 172.8 | not ranked |
| 2018 | 24,232 | 7,774 | 63,569 | 3,893 | 670 | 381.2 | 199.3 | 92 |
Vessel particulars
- IMO number
- 9142459
- Ship type
- Ro-ro ship
- Flag state
- Tunisia per EU MRV 2025
- Builder
- Schichau Seebeckwerft
- Port of registry
- La Goulette MRV 2025
- Home port
- La Goulette
- Technical efficiency (design)
- EIV (20.09 gCO₂/t·nm)
- Verifier
- NORMEC VERIFAVIA SAS, France
- Accreditation
- 3-2127
- Compliance document issued
- 2026-06-30
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 175 of 192 qualifying ro-ro ships by EEOI, at the 91st percentile. The dashed line is the type median, 85.3; this vessel reported 211.5.
EEOI divides emissions by transport work, which for this vessel and year was 63,984,820 tonne-miles over 37,129 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 44.2% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 46.4% while distance sailed fell 50.8%and CO₂ per nautical mile rose 9.0%.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
- 13,742 t
- Methane (CH₄)
- 0.21 t
- Nitrous oxide (N₂O)
- 0.77 t
- Under EU ETS
- 7,506 t, 55% of total
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 2 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.