LNG carrier · Malta flag · built 2007
BRITISH EMERALD: CO₂ emissions 2018–2025
IMO 9333591 MMSI 2732708907 reporting years
- CO₂ reported 2023
- 37,926 t
- Fuel burned
- 13,369 t
- Time at sea
- 5,055 h
- Emitted at berth
- 1% of total
- Share of year under way
- 58%
- Gross tonnage
- 102,064
BRITISH EMERALD against its type
Built in 2007, it is 7 years older than the median LNG carrier on this register, which was built in 2014 (396 vessels with a known build year). At 102,064 gross tonnage it is smaller than 72% 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 same builder is recorded for 761 other vessels here, 41 of them LNG carriers. Its MRV returns name it BRITISH EMERALD for 2018–2019, KMARIN EMERALD for 2020–2021 and COOL RIDER for 2022–2025. The reported port of registry changed: Douglas (2018–2021), then Valletta (2022–2025).
Its 37,926 t of CO₂ for 2023 is 1.7 times the median of 22,978 t among the 367 LNG carriers on this register that reported for 2023. Per nautical mile it emitted 651.4 kg CO₂, close to the type median of 650.5 kg. It logged 5,055 hours at sea against a median of 2,547 hours for its type that year. 1.1% of its 2023 emissions were at berth; the median for LNG carriers was 2.1%. Across 6 years with reported emissions, the highest was 2023 (37,926 t) and the lowest 2019 (5,674 t).
No EU/EEA voyages were reported for 2025: zero CO₂ and zero time at sea, left out of the trend and of any ranking.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | No EU/EEA voyages reported | |||||||
| 2023 | 37,926 | 13,369 | — | 5,055 | 401 | 651.4 | — | — |
| 2022 | 19,091 | 6,872 | — | 1,784 | 174 | 957.5 | — | — |
| 2021 | 7,971 | 2,794 | — | 620 | 163 | 767.9 | — | — |
| 2020 | 36,994 | 13,406 | — | 3,246 | 1,280 | 780.8 | — | — |
| 2019 | 5,674 | 2,039 | — | 1,019 | 1,001 | 586.8 | — | — |
| 2018 | 19,250 | 6,990 | — | 1,322 | 4 | 896.1 | — | — |
Vessel particulars
- IMO number
- 9333591
- Previously reported as
- KMARIN EMERALD, COOL RIDER
- MMSI
- 273270890
- Call sign
- UAPF9
- Ship type
- LNG carrier
- Gross tonnage
- 102,064
- Length overall
- 288.0 m
- Beam
- 44.0 m
- Year built
- 2007
- Flag state
- Malta 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
- HD Hyundai Heavy Industries
- Port of registry
- VALLETTA MRV 2023
- Technical efficiency (design)
- EEXI (7.3 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2024-06-03
- Compliance document expires
- 2025-06-30
Reported CO₂ by year
Reported CO₂ in 2023 was 97.0% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2024, so the series has gaps.
From 2022 to 2023, emissions rose 98.7% and CO₂ per nautical mile fell 32.0%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2023 emissions occurred
Observed movementsAIS · Norwegian waters
- First seen
- 17 Jun 2026
- Last seen
- 30 Jun 2026
- Days observed
- 2
- Positions
- 23
- Median speed
- 17.8 kn
Its recorded positions span 70.6°N to 71.0°N and 15.5°E to 16.8°E.
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2020 | HELLENIC LLOYD'S S.A. | Greece |
| 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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 7 MRV reporting years, 5 of 5 vessel particulars, AIS movements in Norwegian waters and a name history. Not found in the sources for this vessel: an efficiency ranking, 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.