Gas carrier · Singapore flag · built 2008
BWEK MAURITIUS: CO₂ emissions 2018–2025
IMO 9392250 EU ETS6 reporting years
- CO₂ reported 2025
- 4,642 t
- Fuel burned
- 1,468 t
- Distance
- 26,970 nm
- Time at sea
- 2,395 h
- Emitted at berth
- 2% of total
- Share of year under way
- 27%
- Gross tonnage
- 7,218
BWEK MAURITIUS against its type
Built in 2008, it is 5 years older than the median gas carrier on this register, which was built in 2013 (530 vessels with a known build year). At 7,218 gross tonnage it is smaller than 90% of the other 525 gas carriers with a recorded tonnage. It is one of 106 gas carriers here under the Singapore flag, 15.4% of the 688 on the register. Its MRV returns name it CHELSEA for 2018–2024 and BWEK MAURITIUS for 2025. The returns for 2018–2025 all give Singapore as port of registry.
Its 4,642 t of CO₂ for 2025 is 22% below the median of 5,974 t among the 363 gas carriers on this register that reported for 2025. Per nautical mile it emitted 172.1 kg CO₂, 33% below the type median of 256.2 kg. It logged 2,395 hours at sea against a median of 1,943 hours for its type that year. 2.4% of its 2025 emissions were at berth; the median for gas carriers was 3.8%. Across 6 years with reported emissions, the highest was 2023 (7,075 t) and the lowest 2018 (821 t). Its efficiency percentile within the type went from 63 in 2021 to 83 in 2025 (lower is more efficient). Of the 7 comparable vessels 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 | 4,642 | 1,468 | 26,970 | 2,395 | 113 | 172.1 | 72.5 | 83 |
| 2024 | 4,644 | 1,471 | 24,782 | 2,833 | 593 | 187.4 | 80.0 | 81 |
| 2023 | 7,075 | 2,255 | 39,477 | 3,161 | 500 | 179.2 | 81.1 | 78 |
| 2022 | 6,608 | 2,110 | 34,182 | 2,605 | 428 | 193.3 | 117.1 | 92 |
| 2021 | 4,148 | 1,320 | 23,950 | 1,391 | 317 | 173.2 | 53.8 | 63 |
| 2018 | 821 | 263 | — | 395 | 15 | 179.1 | — | not ranked |
Vessel particulars
- IMO number
- 9392250
- Previously reported as
- CHELSEA
- Ship type
- Gas carrier
- Gross tonnage
- 7,218
- Length overall
- 119.8 m
- Beam
- 19.0 m
- Year built
- 2008
- Flag state
- Singapore per EU MRV 2025
- Port of registry
- Singapore MRV 2025
- Technical efficiency (design)
- EIV (15.89 gCO₂/t·nm)
- Verifier
- HELLENIC LLOYD'S S.A., Greece
- Accreditation
- 1190
- Compliance document issued
- 2026-03-31
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 243 of 292 qualifying gas carriers by EEOI, at the 83rd percentile. The dashed line is the type median, 27.9; this vessel reported 72.5.
EEOI divides emissions by transport work, which for this vessel and year was 64,031,310 tonne-miles over 26,970 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 465.2% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2019, 2020, so the series has gaps.
From 2024 to 2025, emissions fell <0.1% while distance sailed rose 8.8%and CO₂ per nautical mile fell 8.2%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 4,714 t
- Methane (CH₄)
- 0.07 t
- Nitrous oxide (N₂O)
- 0.26 t
- Under EU ETS
- 976 t, 21% of total
Laden voyages2025
- CO₂ on laden voyages
- 1,612 t, 35% of total
- Fuel, laden
- 510 t
- CO₂ per nm, laden
- 165.8 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Bureau Veritas Certification France | France |
| 2025 | HELLENIC LLOYD'S S.A. | 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).
This page draws on 6 MRV reporting years, an efficiency ranking, 4 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.