LNG carrier · Malta flag · built 2020
COOL DISCOVERER: CO₂ emissions 2021–2025
IMO 9861031 EU ETS5 reporting years
- CO₂ reported 2025
- 45,042 t
- Fuel burned
- 16,518 t
- Time at sea
- 7,965 h
- Emitted at berth
- 2% of total
- Share of year under way
- 91%
- Gross tonnage
- 116,354
COOL DISCOVERER against its type
Built in 2020, it is 6 years newer than the median LNG carrier on this register, which was built in 2014 (396 vessels with a known build year). At 116,354 gross tonnage it is larger than 71% of the other 377 LNG carriers with a recorded tonnage. It is one of 60 LNG carriers here under the Malta flag, 11.2% of the 538 on the register. The returns for 2021–2025 all give Valletta as port of registry.
Its 45,042 t of CO₂ for 2025 is 2.1 times the median of 21,516 t among the 351 LNG carriers on this register that reported for 2025. Per nautical mile it emitted 420.4 kg CO₂, 21% below the type median of 533.6 kg. It logged 7,965 hours at sea against a median of 2,940 hours for its type that year. 2.1% of its 2025 emissions were at berth; the median for LNG carriers was 2.0%. Across 5 years with reported emissions, the highest was 2022 (51,137 t) and the lowest 2024 (30,431 t). Of the 8 comparable vessels listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2021–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 45,042 | 16,518 | — | 7,965 | 960 | 420.4 | — | — |
| 2024 | 30,431 | 11,218 | — | 5,308 | 600 | 425.4 | — | — |
| 2023 | 43,597 | 15,333 | — | 5,976 | 741 | 516.4 | — | — |
| 2022 | 51,137 | 18,015 | — | 7,208 | 925 | 498.1 | — | — |
| 2021 | 32,298 | 11,437 | — | 4,381 | 567 | 486.1 | — | — |
Vessel particulars
- IMO number
- 9861031
- Ship type
- LNG carrier
- Gross tonnage
- 116,354
- Length overall
- 299.0 m
- Beam
- 46.0 m
- Year built
- 2020
- Flag state
- Malta per EU MRV 2025
- Port of registry
- Valletta MRV 2025
- Technical efficiency (design)
- EEDI (5.83 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2026-04-03
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 39.5% higher than in 2021, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 48.0% and CO₂ per nautical mile fell 1.2%.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
- 54,465 t
- Methane (CH₄)
- 318.93 t
- Nitrous oxide (N₂O)
- 1.86 t
- Under EU ETS
- 23,590 t, 52% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2021 | 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 2021–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 5 MRV reporting years and 4 of 5 vessel particulars. Not found in the sources for this vessel: an efficiency ranking, AIS movements in Norwegian waters, a name history, a licensed photograph, 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.