Gas carrier · Cayman Islands flag · built 2013
ALKAID: CO₂ emissions 2018–2025
IMO 9655509 EU ETS8 reporting years
- CO₂ reported 2025
- 510 t
- Fuel burned
- 162 t
- Time at sea
- 238 h
- Emitted at berth
- 14% of total
- Share of year under way
- 3%
- Gross tonnage
- 18,425
ALKAID against its type
Built in 2013, it is the same age as the median gas carrier on this register (build year 2013, 530 vessels with a known build year). At 18,425 gross tonnage it is smaller than 59% of the other 525 gas carriers with a recorded tonnage. It is the only gas carrier on this register under the Cayman Islands flag. The same builder is recorded for 983 other vessels here, 64 of them gas carriers. Its MRV returns name it SIBUR VORONEZH for 2018–2020 and ALKAID for 2021–2025. The reported port of registry changed: Monrovia (2018–2023), then George Town (2024–2025).
Its 510 t of CO₂ for 2025 is 91% below the median of 5,974 t among the 363 gas carriers on this register that reported for 2025. Per nautical mile it emitted 287.8 kg CO₂, 12% above the type median of 256.2 kg. It logged 238 hours at sea against a median of 1,943 hours for its type that year. 14.0% of its 2025 emissions were at berth; the median for gas carriers was 3.8%. Across 8 years with reported emissions, the highest was 2018 (16,005 t) and the lowest 2025 (510 t). Its efficiency percentile within the type went from 50 in 2018 to 39 in 2024 (lower is more efficient). Of the 3 sister ships listed below with a 2025 return, 1 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 | 510 | 162 | — | 238 | 71 | 287.8 | 72.7 | not ranked |
| 2024 | 4,606 | 1,474 | 18,042 | 1,578 | 167 | 255.3 | 26.1 | 39 |
| 2023 | 1,694 | 534 | — | 543 | 137 | 298.1 | 253.2 | not ranked |
| 2022 | 6,887 | 2,181 | 15,790 | 1,238 | 1,272 | 436.2 | 82.2 | 80 |
| 2021 | 7,418 | 2,354 | 22,128 | 3,032 | 1,366 | 335.2 | 64.3 | 70 |
| 2020 | 13,418 | 4,258 | 42,364 | 3,184 | 784 | 316.7 | 50.0 | 61 |
| 2019 | 13,716 | 4,364 | 46,781 | 3,166 | 2,167 | 293.2 | 56.2 | 61 |
| 2018 | 16,005 | 5,078 | 58,426 | 3,830 | 2,090 | 273.9 | 48.6 | 50 |
Vessel particulars
- IMO number
- 9655509
- Previously reported as
- SIBUR VORONEZH
- Ship type
- Gas carrier
- Gross tonnage
- 18,425
- Length overall
- 160.0 m
- Beam
- 25.6 m
- Year built
- 2013
- Flag state
- Cayman Islands per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Liberia. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- HD Hyundai Mipo
- Port of registry
- George Town MRV 2025
- Home port
- George Town
- Ice class
- IB
- Technical efficiency (design)
- EEXI (8.08 gCO₂/t·nm)
- Efficiency ranking
- Not ranked: transport work below the floor (2025)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-03-26
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 96.8% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 88.9% and CO₂ per nautical mile rose 12.7%.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
- 518 t
- Methane (CH₄)
- 0.01 t
- Nitrous oxide (N₂O)
- 0.03 t
- Under EU ETS
- 291 t, 57% of total
Laden voyages2025
- CO₂ on laden voyages
- 438 t, 86% of total
- Fuel, laden
- 140 t
- CO₂ per nm, laden
- 247.4 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
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 8 MRV reporting years, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: an efficiency ranking, 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.