General cargo ship · Malta flag · built 2005
FREZYA S: CO₂ emissions 2018–2025
IMO 9353022 EU ETS8 reporting years
- CO₂ reported 2025
- 2,083 t
- Fuel burned
- 650 t
- Time at sea
- 4,413 h
- Emitted at berth
- 4% of total
- Share of year under way
- 50%
- Gross tonnage
- 5,029
FREZYA S against its type
Built in 2005, it is 2 years older than the median general cargo ship on this register, which was built in 2007 (2,852 vessels with a known build year). At 5,029 gross tonnage it is smaller than 62% of the other 2,665 general cargo ships with a recorded tonnage. It is one of 69 general cargo ships here under the Malta flag, 2.2% of the 3,081 on the register. Its MRV returns name it FREZYA S for 2018–2022 and SIENNA for 2023–2025. The reported port of registry changed: Panama (2021–2022), then VALLETTA (2023–2025).
Its 2,083 t of CO₂ for 2025 is 26% below the median of 2,820 t among the 2,469 general cargo ships on this register that reported for 2025. Per nautical mile it emitted 76.7 kg CO₂, 37% below the type median of 122.2 kg. It logged 4,413 hours at sea against a median of 3,044 hours for its type that year. 4.1% of its 2025 emissions were at berth; the median for general cargo ships was 4.3%. Across 8 years with reported emissions, the highest was 2019 (3,769 t) and the lowest 2024 (1,573 t). Its efficiency percentile within the type went from 41 in 2018 to 32 in 2024 (lower is more efficient). 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 | 2,083 | 650 | — | 4,413 | 85 | 76.7 | — | — |
| 2024 | 1,573 | 491 | 19,054 | 2,357 | 71 | 82.6 | 18.6 | 32 |
| 2023 | 2,136 | 666 | 22,890 | 2,816 | 96 | 93.3 | 17.9 | 39 |
| 2022 | 2,533 | 790 | — | 3,088 | 62 | 111.3 | — | — |
| 2021 | 2,840 | 886 | — | 3,547 | 35 | 99.5 | — | — |
| 2020 | 2,939 | 917 | — | 3,644 | 54 | 96.3 | — | — |
| 2019 | 3,769 | 1,199 | — | 4,614 | 62 | 104.8 | — | — |
| 2018 | 3,676 | 1,172 | 34,567 | 5,182 | 163 | 106.3 | 23.9 | 41 |
Vessel particulars
- IMO number
- 9353022
- Previously reported as
- SIENNA
- Ship type
- General cargo ship
- Gross tonnage
- 5,029
- Length overall
- 119.6 m
- Year built
- 2005
- Flag state
- Malta per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Panama. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- VALLETTA MRV 2025
- Technical efficiency (design)
- EIV (15.03 gCO₂/t·nm)
- Verifier
- ICS Verification Services Single Member P.C., Greece
- Accreditation
- 1101-3
- Compliance document issued
- 2026-04-17
- Compliance document expires
- 2027-06-30
Efficiency against its own type2024
Position 102 of 321 qualifying general cargo ships by EEOI, at the 32nd percentile. The dashed line is the type median, 23.6; this vessel reported 18.6.
EEOI divides emissions by transport work, which for this vessel and year was 84,573,656 tonne-miles over 19,054 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 43.3% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 32.4% and CO₂ per nautical mile fell 7.2%.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
- 2,115 t
- Methane (CH₄)
- 0.03 t
- Nitrous oxide (N₂O)
- 0.12 t
- Under EU ETS
- 1,346 t, 65% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | VERIFAVIA (UK) LTD | United Kingdom |
| 2020 | NORMEC VERIFAVIA SAS | France |
| 2023 | RINA HELLAS LTD | Greece |
| 2025 | ICS Verification Services Single Member P.C. | 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, an efficiency ranking, 4 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: 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.