Gas carrier · Marshall Islands flag · built 2015
MONSOON: CO₂ emissions 2019–2025
IMO 9667564 EU ETS4 reporting years
- CO₂ reported 2025
- 2,313 t
- Fuel burned
- 741 t
- Distance
- 5,335 nm
- Time at sea
- 384 h
- Emitted at berth
- 3% of total
- Share of year under way
- 4%
- Gross tonnage
- 46,789
MONSOON against its type
Built in 2015, it is 2 years newer than the median gas carrier on this register, which was built in 2013 (530 vessels with a known build year). At 46,789 gross tonnage it is larger than 69% of the other 525 gas carriers with a recorded tonnage. It is one of 70 gas carriers here under the Marshall Islands flag, 10.2% of the 688 on the register. Its MRV returns name it MONSOON for 2019–2021 and BW MONSOON for 2025. The returns for 2019–2025 all give Majuro as port of registry.
Its 2,313 t of CO₂ for 2025 is 61% below the median of 5,974 t among the 363 gas carriers on this register that reported for 2025. Per nautical mile it emitted 433.6 kg CO₂, 1.7 times the type median of 256.2 kg. It logged 384 hours at sea against a median of 1,943 hours for its type that year. 2.5% of its 2025 emissions were at berth; the median for gas carriers was 3.8%. Across 4 years with reported emissions, the highest was 2020 (11,903 t) and the lowest 2019 (1,571 t). Its efficiency percentile within the type went from 19 in 2020 to 2 in 2025 (lower is more efficient). Of the 3 comparable vessels listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2019–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 2,313 | 741 | 5,335 | 384 | 58 | 433.6 | 9.6 | 2 |
| 2021 | 4,307 | 1,380 | 10,357 | 719 | 128 | 415.9 | 17.1 | 12 |
| 2020 | 11,903 | 3,812 | 29,822 | 2,192 | 164 | 399.1 | 18.1 | 19 |
| 2019 | 1,571 | 503 | — | 290 | 99 | 494.8 | 67.1 | not ranked |
Vessel particulars
- IMO number
- 9667564
- Previously reported as
- BW MONSOON
- Ship type
- Gas carrier
- Gross tonnage
- 46,789
- Length overall
- 226.0 m
- Beam
- 37.0 m
- Year built
- 2015
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (4.6 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-01-28
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 7 of 292 qualifying gas carriers by EEOI, at the 2nd percentile. The dashed line is the type median, 27.9; this vessel reported 9.6.
EEOI divides emissions by transport work, which for this vessel and year was 241,739,812 tonne-miles over 5,335 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 47.3% higher than in 2019, for EU/EEA voyages only. No return is recorded for 2022, 2023, 2024, so the series has gaps.
From 2021 to 2025, emissions fell 46.3% while distance sailed fell 48.5%and CO₂ per nautical mile rose 4.3%.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
- 2,350 t
- Methane (CH₄)
- 0.04 t
- Nitrous oxide (N₂O)
- 0.13 t
- Under EU ETS
- 1,186 t, 51% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | DNV | Germany |
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 2019–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 4 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.