Ro-pax ship · Denmark flag · built 2005
STENA BALTICA: CO₂ emissions 2018–2025
IMO 9329851 EU ETS7 reporting years
- CO₂ reported 2025
- 26,652 t
- Fuel burned
- 8,500 t
- Time at sea
- 3,792 h
- Emitted at berth
- 16% of total
- Share of year under way
- 43%
- Gross tonnage
- 27,510
STENA BALTICA against its type
Built in 2005, it is 5 years newer than the median ro-pax ship on this register, which was built in 2000 (483 vessels with a known build year). At 27,510 gross tonnage it is larger than 62% 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. Its MRV returns name it STENA MERSEY for 2018–2020 and STENA BALTICA for 2022–2025. The reported port of registry changed: Belfast (2018–2020), then Hellrup (2022), then Hellerup (2023–2025).
Its 26,652 t of CO₂ for 2025 is 11% below the median of 30,062 t among the 417 ro-pax ships on this register that reported for 2025. Per nautical mile it emitted 430.6 kg CO₂, close to the type median of 467.6 kg. It logged 3,792 hours at sea against a median of 4,243 hours for its type that year. 16.0% of its 2025 emissions were at berth; the median for ro-pax ships was 6.7%. Across 7 years with reported emissions, the highest was 2018 (46,139 t) and the lowest 2024 (26,246 t). Of the 5 comparable vessels 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 | 26,652 | 8,500 | — | 3,792 | 4,269 | 430.6 | — | — |
| 2024 | 26,246 | 8,371 | — | 3,639 | 4,237 | 458.6 | — | — |
| 2023 | 37,049 | 11,856 | — | 4,939 | 3,807 | 462.1 | — | — |
| 2022 | 37,275 | 11,930 | — | 5,336 | 2,506 | 469.7 | — | — |
| 2020 | 43,595 | 13,960 | — | 4,990 | 2,559 | 480.6 | — | — |
| 2019 | 41,897 | 13,421 | — | 5,147 | 2,341 | 470.6 | — | — |
| 2018 | 46,139 | 14,775 | — | 5,662 | 2,237 | 479.1 | — | — |
Vessel particulars
- IMO number
- 9329851
- Previously reported as
- STENA MERSEY
- Ship type
- Ro-pax ship
- Gross tonnage
- 27,510
- Length overall
- 186.0 m
- Year built
- 2005
- Flag state
- Denmark per EU MRV 2025
- Port of registry
- Hellerup MRV 2025
- Ice class
- IC
- Technical efficiency (design)
- EEXI (21.48 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-06
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 42.2% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2021, so the series has gaps.
From 2024 to 2025, emissions rose 1.5% and CO₂ per nautical mile fell 6.1%.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
- 27,069 t
- Methane (CH₄)
- 0.42 t
- Nitrous oxide (N₂O)
- 1.53 t
- Under EU ETS
- 26,652 t, 100% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | HELLENIC LLOYD'S S.A. | Greece |
| 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 7 MRV reporting years, 4 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, AIS movements in Norwegian waters, 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.