Container ship · Malta flag · built 2009
CARAT: CO₂ emissions 2018–2025
IMO 9429209 EU ETS7 reporting years
- CO₂ reported 2025
- 13,123 t
- Fuel burned
- 4,209 t
- Distance
- 55,671 nm
- Time at sea
- 4,397 h
- Emitted at berth
- 3% of total
- Share of year under way
- 50%
- Gross tonnage
- 9,983
CARAT against its type
Built in 2009, it is 1 year newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 9,983 gross tonnage it is smaller than 90% of the other 3,000 container ships with a recorded tonnage. It is one of 336 container ships here under the Malta flag, 9.6% of the 3,495 on the register. The same builder is recorded for 44 other vessels here, 23 of them container ships. Its MRV returns name it CARAT for 2018–2019 and CHARLOTTA for 2021–2025. The reported port of registry changed: Valletta (2018), then Madeira (2021–2023), then PIKIS (2024), then Valletta (2025).
Its 13,123 t of CO₂ for 2025 is 20% below the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 235.7 kg CO₂, 57% below the type median of 545.6 kg. It logged 4,397 hours at sea against a median of 3,155 hours for its type that year. 3.4% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 7 years with reported emissions, the highest was 2022 (14,535 t) and the lowest 2019 (6,844 t). Its efficiency percentile within the type went from 94 in 2018 to 90 in 2025 (lower is more efficient). Of the 5 sister ships listed below with a 2025 return, 4 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 | 13,123 | 4,209 | 55,671 | 4,397 | 443 | 235.7 | 37.4 | 90 |
| 2024 | 11,916 | 3,803 | 47,317 | 5,615 | 574 | 251.8 | 27.7 | 80 |
| 2023 | 14,272 | 4,573 | 56,693 | 4,540 | 606 | 251.7 | 35.1 | 83 |
| 2022 | 14,535 | 4,662 | 60,192 | 5,017 | 563 | 241.5 | 33.2 | 82 |
| 2021 | 12,498 | 4,009 | 48,455 | 4,505 | 401 | 257.9 | 39.7 | 88 |
| 2019 | 6,844 | 2,178 | — | 3,310 | 261 | 317.1 | 68.1 | not ranked |
| 2018 | 9,648 | 3,084 | 28,532 | 6,933 | 493 | 338.1 | 52.8 | 94 |
Vessel particulars
- IMO number
- 9429209
- Previously reported as
- CHARLOTTA
- Ship type
- Container ship
- Gross tonnage
- 9,983
- Length overall
- 140.7 m
- Beam
- 23.5 m
- Year built
- 2009
- Flag state
- Malta per EU MRV 2025
- Builder
- Fujian Mawei Shipbuilding
- Port of registry
- Valletta MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EEXI (22.92 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2026-02-12
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,652 of 1,838 qualifying container ships by EEOI, at the 90th percentile. The dashed line is the type median, 14.2; this vessel reported 37.4.
EEOI divides emissions by transport work, which for this vessel and year was 351,252,141 tonne-miles over 55,671 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 36.0% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2020, so the series has gaps.
From 2024 to 2025, emissions rose 10.1% while distance sailed rose 17.7%and CO₂ per nautical mile fell 6.4%.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
- 13,329 t
- Methane (CH₄)
- 0.21 t
- Nitrous oxide (N₂O)
- 0.76 t
- Under EU ETS
- 9,356 t, 71% of total
Laden voyages2025
- CO₂ on laden voyages
- 13,123 t, 100% of total
- Fuel, laden
- 4,209 t
- CO₂ per nm, laden
- 235.7 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | DNV | Germany |
| 2024 | 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 7 MRV reporting years, an efficiency ranking, 5 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.