Ro-pax ship · Italy flag · built 1985
MEGA SMERALDA: CO₂ emissions 2018–2025
IMO 8306486 EU ETS7 reporting years
- CO₂ reported 2025
- 39,747 t
- Fuel burned
- 12,437 t
- Time at sea
- 4,310 h
- Emitted at berth
- 11% of total
- Share of year under way
- 49%
- Gross tonnage
- 33,829
MEGA SMERALDA against its type
Built in 1985, it is 15 years older than the median ro-pax ship on this register, which was built in 2000 (483 vessels with a known build year). At 33,829 gross tonnage it is larger than 78% of the other 470 ro-pax ships with a recorded tonnage. It is one of 84 ro-pax ships here under the Italy flag, 17.0% of the 493 on the register. The same builder is recorded for 19 other vessels here, 11 of them ro-pax ships. The returns for 2018–2025 all give Genova as port of registry.
Its 39,747 t of CO₂ for 2025 is 32% 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 612.1 kg CO₂, 31% above the type median of 467.6 kg. It logged 4,310 hours at sea against a median of 4,243 hours for its type that year. 11.0% 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 2022 (55,547 t) and the lowest 2020 (33,468 t). Of the 3 sister ships listed below with a 2025 return, 1 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 | 39,747 | 12,437 | — | 4,310 | 4,385 | 612.1 | — | — |
| 2024 | 43,185 | 13,818 | — | 4,355 | 3,931 | 643.8 | — | — |
| 2022 | 55,547 | 17,797 | — | 5,551 | 4,254 | 632.3 | — | — |
| 2021 | 44,740 | 14,333 | — | 4,372 | 3,666 | 624.6 | — | — |
| 2020 | 33,468 | 10,742 | — | 3,170 | 3,125 | 656.5 | — | — |
| 2019 | 46,375 | 14,849 | — | 4,196 | 5,448 | 673.8 | — | — |
| 2018 | 45,426 | 14,583 | — | 4,567 | 171 | 599.7 | — | — |
Vessel particulars
- IMO number
- 8306486
- Ship type
- Ro-pax ship
- Gross tonnage
- 33,829
- Length overall
- 168.5 m
- Year built
- 1985
- Flag state
- Italy per EU MRV 2025
- Builder
- Wärtsilä
- Port of registry
- Genova MRV 2025
- Technical efficiency (design)
- EIV (3.69 gCO₂/t·nm)
- Verifier
- RINA Services Spa, Italy
- Accreditation
- 002O
- Compliance document issued
- 2026-04-14
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 12.5% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2023, so the series has gaps.
From 2024 to 2025, emissions fell 8.0% and CO₂ per nautical mile fell 4.9%.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
- 40,358 t
- Methane (CH₄)
- 0.62 t
- Nitrous oxide (N₂O)
- 2.24 t
- Under EU ETS
- 39,274 t, 99% of total
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, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, 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.