Ro-pax ship · Greece flag · built 2001
CRUISE BONARIA: CO₂ emissions 2018–2025
IMO 9220330 EU ETS8 reporting years
- CO₂ reported 2025
- 62,864 t
- Fuel burned
- 20,078 t
- Time at sea
- 3,551 h
- Emitted at berth
- 10% of total
- Share of year under way
- 41%
- Gross tonnage
- 36,825
CRUISE BONARIA against its type
Built in 2001, it is 1 year newer than the median ro-pax ship on this register, which was built in 2000 (483 vessels with a known build year). At 36,825 gross tonnage it is larger than 84% of the other 470 ro-pax ships with a recorded tonnage. It is one of 48 ro-pax ships here under the Greece flag, 9.7% of the 493 on the register. The same builder is recorded for 132 other vessels here, 27 of them ro-pax ships. Its MRV returns name it CRUISE BONARIA for 2018–2019 and KNOSSOS PALACE for 2020–2025. The reported port of registry changed: Palermo (2018–2019), then HERAKLION (2020–2025).
Its 62,864 t of CO₂ for 2025 is 2.1 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 822.2 kg CO₂, 1.8 times the type median of 467.6 kg. It logged 3,551 hours at sea against a median of 4,243 hours for its type that year. 9.9% 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 (67,487 t) and the lowest 2019 (45,446 t). Of the 7 sister ships listed below with a 2025 return, 7 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 | 62,864 | 20,078 | — | 3,551 | 6,193 | 822.2 | — | — |
| 2024 | 57,971 | 18,563 | — | 3,274 | 5,786 | 805.0 | — | — |
| 2023 | 50,478 | 16,159 | — | 3,544 | 5,531 | 717.8 | — | — |
| 2022 | 52,805 | 16,904 | — | 3,400 | 5,726 | 774.0 | — | — |
| 2021 | 58,395 | 18,666 | — | 3,536 | 5,675 | 799.3 | — | — |
| 2020 | 60,071 | 19,202 | — | 3,971 | 4,688 | 733.7 | — | — |
| 2019 | 45,446 | 14,405 | — | 2,940 | 2,942 | 717.5 | — | — |
| 2018 | 67,487 | 21,387 | — | 4,366 | 2,863 | 722.4 | — | — |
Vessel particulars
- IMO number
- 9220330
- Previously reported as
- KNOSSOS PALACE
- Ship type
- Ro-pax ship
- Gross tonnage
- 36,825
- Length overall
- 213.0 m
- Year built
- 2001
- Flag state
- Greece per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Italy. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- Fincantieri
- Port of registry
- HERAKLION MRV 2025
- Home port
- Piraeus
- Technical efficiency (design)
- EEXI (22.77 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2026-06-30
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 6.9% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 8.4% and CO₂ per nautical mile rose 2.1%.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
- 63,849 t
- Methane (CH₄)
- 1.00 t
- Nitrous oxide (N₂O)
- 3.61 t
- Under EU ETS
- 5,053 t, 8% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | RINA Services Spa | Italy |
| 2022 | RINA HELLAS LTD | Greece |
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, 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.