Ro-ro ship · Portugal flag · built 2008
CORONA SEA: CO₂ emissions 2018–2025
IMO 9357597 EU ETS8 reporting years
- CO₂ reported 2025
- 38,842 t
- Fuel burned
- 12,555 t
- Distance
- 94,819 nm
- Time at sea
- 5,959 h
- Emitted at berth
- 5% of total
- Share of year under way
- 68%
- Gross tonnage
- 25,609
CORONA SEA against its type
Built in 2008, it is 6 years newer than the median ro-ro ship on this register, which was built in 2002 (281 vessels with a known build year). At 25,609 gross tonnage it is larger than 66% of the other 269 ro-ro ships with a recorded tonnage. It is one of 16 ro-ro ships here under the Portugal flag, 5.1% of the 311 on the register. The same builder is recorded for 160 other vessels here, 18 of them ro-ro ships. The reported port of registry changed: London (2018–2022), then Madeira (2023–2025).
Its 38,842 t of CO₂ for 2025 is 1.8 times the median of 21,362 t among the 238 ro-ro ships on this register that reported for 2025. Per nautical mile it emitted 409.6 kg CO₂, 25% above the type median of 327.0 kg. It logged 5,959 hours at sea against a median of 4,872 hours for its type that year. 5.3% 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 2020 (46,148 t) and the lowest 2023 (35,314 t). Its efficiency percentile within the type went from 69 in 2018 to 51 in 2025 (lower is more efficient). Of the 3 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 | 38,842 | 12,555 | 94,819 | 5,959 | 2,050 | 409.6 | 85.6 | 51 |
| 2024 | 36,806 | 11,782 | 87,557 | 5,598 | 2,130 | 420.4 | 94.2 | 56 |
| 2023 | 35,314 | 11,305 | 81,995 | 5,336 | 1,964 | 430.7 | 109.0 | 62 |
| 2022 | 42,905 | 13,740 | 94,037 | 5,599 | 2,291 | 456.3 | 102.3 | 66 |
| 2021 | 46,024 | 14,737 | 95,230 | 5,602 | 3,444 | 483.3 | 104.0 | 57 |
| 2020 | 46,148 | 14,779 | 94,391 | 5,566 | 2,219 | 488.9 | 116.0 | 65 |
| 2019 | 45,579 | 14,597 | 96,488 | 5,655 | 2,128 | 472.4 | 122.8 | 73 |
| 2018 | 41,211 | 13,197 | 85,126 | 5,044 | 1,906 | 484.1 | 118.8 | 69 |
Vessel particulars
- IMO number
- 9357597
- Ship type
- Ro-ro ship
- Gross tonnage
- 25,609
- Length overall
- 187.0 m
- Beam
- 26.0 m
- Year built
- 2008
- Flag state
- Portugal per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list United Kingdom. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- CSC Jinling
- Port of registry
- MADEIRA MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EEXI (15 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-16
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 98 of 192 qualifying ro-ro ships by EEOI, at the 51st percentile. The dashed line is the type median, 85.3; this vessel reported 85.6.
EEOI divides emissions by transport work, which for this vessel and year was 453,598,739 tonne-miles over 94,819 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 5.7% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 5.5% while distance sailed rose 8.3%and CO₂ per nautical mile fell 2.6%.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
- 39,458 t
- Methane (CH₄)
- 0.63 t
- Nitrous oxide (N₂O)
- 2.26 t
- Under EU ETS
- 34,649 t, 89% 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 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2025 | 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.