General cargo ship · Portugal flag · built 2012
JOHANN: CO₂ emissions 2025
IMO 9534298 MMSI 636092297EU ETS
- CO₂ reported 2025
- 2,495 t
- Fuel burned
- 778 t
- Time at sea
- 2,734 h
- Emitted at berth
- 7% of total
- Share of year under way
- 31%
- Gross tonnage
- 4,255
JOHANN against its type
Built in 2012, it is 5 years newer than the median general cargo ship on this register, which was built in 2007 (2,852 vessels with a known build year). At 4,255 gross tonnage it is smaller than 66% of the other 2,665 general cargo ships with a recorded tonnage. It is one of 187 general cargo ships here under the Portugal flag, 6.1% of the 3,081 on the register.
Its 2,495 t of CO₂ for 2025 is 11% 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 99.2 kg CO₂, 19% below the type median of 122.2 kg. It logged 2,734 hours at sea against a median of 3,044 hours for its type that year. 7.1% 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, 4 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 | 2,495 | 778 | — | 2,734 | 176 | 99.2 | — | — |
Vessel particulars
- IMO number
- 9534298
- MMSI
- 636092297
- Ship type
- General cargo ship
- Gross tonnage
- 4,255
- Length overall
- 114.4 m
- Beam
- 14.4 m
- Year built
- 2012
- Flag state
- Portugal per EU MRV 2025
- Port of registry
- Madeira MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EEXI (15.04 gCO₂/t·nm)
- Verifier
- Swiss Climate EcoCare GmbH, Germany
- Accreditation
- D-VS-20810-01
- Compliance document issued
- 2026-03-30
- Compliance document expires
- 2027-06-30
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 2,534 t
- Methane (CH₄)
- 0.04 t
- Nitrous oxide (N₂O)
- 0.14 t
Observed movementsAIS · Norwegian waters
- First seen
- 01 Oct 2025
- Last seen
- 04 Oct 2025
- Days observed
- 4
- Positions
- 275
- Median speed
- 11.7 kn
Its recorded positions span 58.0°N to 59.7°N and 9.0°E to 10.7°E.
73 hourly points from 275 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
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.
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 1 MRV reporting year, 4 of 5 vessel particulars, AIS movements in Norwegian waters and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, 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.