General cargo ship · San Marino flag · built 1996
HELEN H: CO₂ emissions 2025
IMO 9139115 EU ETS
- CO₂ reported 2025
- 1,086 t
- Fuel burned
- 339 t
- Time at sea
- 1,227 h
- Emitted at berth
- 17% of total
- Share of year under way
- 14%
- Gross tonnage
- 3,854
HELEN H against its type
Built in 1996, it is 11 years older than the median general cargo ship on this register, which was built in 2007 (2,852 vessels with a known build year). At 3,854 gross tonnage it is smaller than 71% of the other 2,665 general cargo ships with a recorded tonnage. It is one of 23 general cargo ships here under the San Marino flag, 0.7% of the 3,081 on the register.
Its 1,086 t of CO₂ for 2025 is 61% below the median of 2,820 t among the 2,469 general cargo ships on this register that reported for 2025. Per nautical mile it emitted 66.7 kg CO₂, 45% below the type median of 122.2 kg. It logged 1,227 hours at sea against a median of 3,044 hours for its type that year. 17.5% of its 2025 emissions were at berth; the median for general cargo ships was 4.3%. Of the 8 comparable vessels listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2025–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 1,086 | 339 | — | 1,227 | 190 | 66.7 | — | — |
Vessel particulars
- IMO number
- 9139115
- Ship type
- General cargo ship
- Gross tonnage
- 3,854
- Length overall
- 100.5 m
- Year built
- 1996
- Flag state
- San Marino per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Antigua and Barbuda. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- San Marino MRV 2025
- Verifier
- Dromon Bureau of Shipping, Greece
- Accreditation
- 1128
- Compliance document issued
- 2026-03-19
- Compliance document expires
- 2027-06-30
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 1,103 t
- Methane (CH₄)
- 0.02 t
- Nitrous oxide (N₂O)
- 0.06 t
- Under EU ETS
- 707 t, 65% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2025–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 1 MRV reporting year, 4 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, AIS movements in Norwegian waters, a name history, 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.