Ro-pax ship · Denmark flag · built 1986
PRINCESS SEAWAYS: CO₂ emissions 2018–2025
IMO 8502391 EU ETS8 reporting years
- CO₂ reported 2025
- 44,271 t
- Fuel burned
- 14,562 t
- Time at sea
- 5,839 h
- Emitted at berth
- 3% of total
- Share of year under way
- 67%
- Gross tonnage
- 31,356
PRINCESS SEAWAYS against its type
Built in 1986, it is 14 years older than the median ro-pax ship on this register, which was built in 2000 (483 vessels with a known build year). At 31,356 gross tonnage it is larger than 71% of the other 470 ro-pax ships with a recorded tonnage. It is one of 29 ro-pax ships here under the Denmark flag, 5.9% of the 493 on the register. The same builder is recorded for 29 other vessels here, 15 of them ro-pax ships. The reported port of registry changed: København (2018–2021), then Kobenhavn (2022), then Copenhagen (2023–2025).
Its 44,271 t of CO₂ for 2025 is 47% above the median of 30,062 t among the 417 ro-pax ships on this register that reported for 2025. Per nautical mile it emitted 474.5 kg CO₂, close to the type median of 467.6 kg. It logged 5,839 hours at sea against a median of 4,243 hours for its type that year. 3.4% 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 2018 (46,052 t) and the lowest 2020 (32,003 t). Of the 2 sister ships listed below with a 2025 return, 2 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 | 44,271 | 14,562 | — | 5,839 | 1,515 | 474.5 | — | — |
| 2024 | 39,914 | 12,815 | — | 5,609 | 1,449 | 444.4 | — | — |
| 2023 | 39,256 | 12,950 | — | 5,503 | 936 | 442.7 | — | — |
| 2022 | 43,046 | 13,821 | — | 5,792 | 1,063 | 460.6 | — | — |
| 2021 | 39,348 | 12,307 | — | 5,190 | 1,736 | 471.5 | — | — |
| 2020 | 32,003 | 10,270 | — | 3,697 | 3,946 | 540.1 | — | — |
| 2019 | 45,287 | 14,538 | — | 5,799 | 3,675 | 490.0 | — | — |
| 2018 | 46,052 | 14,783 | 92,620 | 5,799 | 3,474 | 497.2 | 478.5 | 76 |
Vessel particulars
- IMO number
- 8502391
- Ship type
- Ro-pax ship
- Gross tonnage
- 31,356
- Length overall
- 161.5 m
- Year built
- 1986
- Flag state
- Denmark per EU MRV 2025
- Builder
- Schichau Seebeckwerft
- Port of registry
- Copenhagen MRV 2025
- Technical efficiency (design)
- EEXI (29.65 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-13
- Compliance document expires
- 2027-06-30
Efficiency against its own type2018
Position 14 of 18 qualifying ro-pax ships by EEOI, at the 76th percentile. The dashed line is the type median, 335.9; this vessel reported 478.5.
EEOI divides emissions by transport work, which for this vessel and year was 79,700,559 passenger-miles over 92,620 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 3.9% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 10.9% and CO₂ per nautical mile rose 6.8%.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
- 44,986 t
- Methane (CH₄)
- 0.73 t
- Nitrous oxide (N₂O)
- 2.62 t
- Under EU ETS
- 12,661 t, 29% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | VERIFAVIA (UK) LTD | United Kingdom |
| 2020 | NORMEC VERIFAVIA SAS | France |
| 2022 | DNV | Germany |
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, an efficiency ranking, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: 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.