Ro-pax ship · Lithuania flag · built 1999
OPTIMA SEAWAYS: CO₂ emissions 2018–2025
IMO 9188427 EU ETS8 reporting years
- CO₂ reported 2025
- 46,696 t
- Fuel burned
- 14,937 t
- Time at sea
- 5,362 h
- Emitted at berth
- 4% of total
- Share of year under way
- 61%
- Gross tonnage
- 25,263
OPTIMA SEAWAYS against its type
Built in 1999, it is 1 year older than the median ro-pax ship on this register, which was built in 2000 (483 vessels with a known build year). At 25,263 gross tonnage it is larger than 54% of the other 470 ro-pax ships with a recorded tonnage. It is one of 6 ro-pax ships here under the Lithuania flag, 1.2% of the 493 on the register. The returns for 2018–2025 all give Klaipeda as port of registry.
Its 46,696 t of CO₂ for 2025 is 1.6 times the median of 30,062 t among the 417 ro-pax ships on this register that reported for 2025. Per nautical mile it emitted 461.4 kg CO₂, close to the type median of 467.6 kg. It logged 5,362 hours at sea against a median of 4,243 hours for its type that year. 4.3% 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 2023 (54,150 t) and the lowest 2022 (27,843 t). Of the 8 comparable vessels listed below with a 2025 return, 5 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 | 46,696 | 14,937 | — | 5,362 | 2,016 | 461.4 | — | — |
| 2024 | 42,936 | 13,732 | — | 4,771 | 1,343 | 466.4 | — | — |
| 2023 | 54,150 | 17,325 | — | 5,988 | 1,958 | 472.2 | — | — |
| 2022 | 27,843 | 8,898 | — | 4,073 | 3,944 | 455.8 | — | — |
| 2021 | 38,816 | 12,423 | — | 4,746 | 2,718 | 462.8 | — | — |
| 2020 | 37,217 | 11,915 | — | 5,101 | 2,489 | 438.4 | — | — |
| 2019 | 31,085 | 9,947 | — | 4,373 | 2,610 | 428.0 | — | — |
| 2018 | 33,391 | 10,687 | 79,194 | 4,745 | 2,561 | 421.6 | 172.6 | 18 |
Vessel particulars
- IMO number
- 9188427
- Ship type
- Ro-pax ship
- Gross tonnage
- 25,263
- Length overall
- 186.0 m
- Year built
- 1999
- Flag state
- Lithuania per EU MRV 2025
- Port of registry
- Klaipeda MRV 2025
- Technical efficiency (design)
- EEXI (22.42 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-11
- Compliance document expires
- 2027-06-30
Efficiency against its own type2018
Position 4 of 18 qualifying ro-pax ships by EEOI, at the 18th percentile. The dashed line is the type median, 335.9; this vessel reported 172.6.
EEOI divides emissions by transport work, which for this vessel and year was 14,742,937 passenger-miles over 79,194 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 39.8% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 8.8% and CO₂ per nautical mile fell 1.1%.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
- 47,430 t
- Methane (CH₄)
- 0.75 t
- Nitrous oxide (N₂O)
- 2.69 t
- Under EU ETS
- 46,696 t, 100% 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).
This page draws on 8 MRV reporting years, an efficiency ranking and 4 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.