Container ship · Marshall Islands flag · built 2005
CHS ALPHA: CO₂ emissions 2023–2025
IMO 9301081 EU ETS3 reporting years
- CO₂ reported 2025
- 12,121 t
- Fuel burned
- 3,837 t
- Distance
- 52,192 nm
- Time at sea
- 5,247 h
- Emitted at berth
- 4% of total
- Share of year under way
- 60%
- Gross tonnage
- 8,971
CHS ALPHA against its type
Built in 2005, it is 3 years older than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 8,971 gross tonnage it is smaller than 95% of the other 3,000 container ships with a recorded tonnage. It is one of 119 container ships here under the Marshall Islands flag, 3.4% of the 3,495 on the register. The same builder is recorded for 52 other vessels here, 7 of them container ships. Its MRV returns name it VEGA ALPHA for 2023–2024 and CHS ALPHA for 2025. The returns for 2023–2025 all give Majuro as port of registry.
Its 12,121 t of CO₂ for 2025 is 26% below the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 232.2 kg CO₂, 57% below the type median of 545.6 kg. It logged 5,247 hours at sea against a median of 3,155 hours for its type that year. 4.1% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 3 years with reported emissions, the highest was 2025 (12,121 t) and the lowest 2023 (5,089 t). Of the 4 sister ships listed below with a 2025 return, 1 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2023–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 12,121 | 3,837 | 52,192 | 5,247 | 499 | 232.2 | 50.3 | 96 |
| 2024 | 8,396 | 2,657 | — | 3,437 | 288 | 227.3 | 63.4 | not ranked |
| 2023 | 5,089 | 1,612 | — | 1,549 | 494 | 242.5 | 64.1 | not ranked |
Vessel particulars
- IMO number
- 9301081
- Previously reported as
- VEGA ALPHA
- Ship type
- Container ship
- Gross tonnage
- 8,971
- Length overall
- 154.9 m
- Year built
- 2005
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- Volharding Shipyards
- Port of registry
- Majuro MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EEXI (25.56 gCO₂/t·nm)
- Verifier
- Swiss Climate EcoCare GmbH, Germany
- Accreditation
- D-VS-20810-01
- Compliance document issued
- 2026-04-09
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,772 of 1,838 qualifying container ships by EEOI, at the 96th percentile. The dashed line is the type median, 14.2; this vessel reported 50.3.
EEOI divides emissions by transport work, which for this vessel and year was 241,158,376 tonne-miles over 52,192 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 138.2% higher than in 2023, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 44.4% and CO₂ per nautical mile rose 2.2%.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
- 12,309 t
- Methane (CH₄)
- 0.19 t
- Nitrous oxide (N₂O)
- 0.69 t
- Under EU ETS
- 3,867 t, 32% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2023 | DNV | Germany |
| 2025 | Swiss Climate EcoCare GmbH | 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 2023–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 3 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.