Container ship · Japan flag · built 2012
HELSINKI BRIDGE: CO₂ emissions 2018–2025
IMO 9588081 EU ETS4 reporting years
- CO₂ reported 2025
- 37,932 t
- Fuel burned
- 12,078 t
- Distance
- 59,366 nm
- Time at sea
- 4,271 h
- Emitted at berth
- 1% of total
- Share of year under way
- 49%
- Gross tonnage
- 98,747
HELSINKI BRIDGE against its type
Built in 2012, it is 4 years newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 98,747 gross tonnage it is larger than 79% of the other 3,000 container ships with a recorded tonnage. It is one of 22 container ships here under the Japan flag, 0.6% of the 3,495 on the register. Its MRV returns name it HELSINKI BRIDGE for 2018–2019 and ONE HELSINKI for 2024–2025. The reported port of registry changed: PANAMA (2018–2024), then Tokyo (2025).
Its 37,932 t of CO₂ for 2025 is 2.3 times the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 638.9 kg CO₂, 17% above the type median of 545.6 kg. It logged 4,271 hours at sea against a median of 3,155 hours for its type that year. 0.7% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 4 years with reported emissions, the highest was 2025 (37,932 t) and the lowest 2018 (5,393 t). Its efficiency percentile within the type went from 17 in 2018 to 30 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 0 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 | 37,932 | 12,078 | 59,366 | 4,271 | 266 | 638.9 | 9.9 | 30 |
| 2024 | 18,282 | 5,794 | — | 1,671 | 0 | 703.9 | — | — |
| 2019 | 13,027 | 4,170 | 17,744 | 1,052 | 314 | 734.2 | 10.6 | 24 |
| 2018 | 5,393 | 1,726 | 7,472 | 469 | 324 | 721.7 | 10.1 | 17 |
Vessel particulars
- IMO number
- 9588081
- Previously reported as
- ONE HELSINKI
- Ship type
- Container ship
- Gross tonnage
- 98,747
- Length overall
- 335.0 m
- Year built
- 2012
- Flag state
- Japan per EU MRV 2025
- Port of registry
- Tokyo MRV 2025
- Technical efficiency (design)
- EEXI (10.1 gCO₂/t·nm)
- Verifier
- Nippon Kaiji Kyokai, Japan
- Accreditation
- VS-21325-01
- Compliance document issued
- 2026-03-23
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 545 of 1,838 qualifying container ships by EEOI, at the 30th percentile. The dashed line is the type median, 14.2; this vessel reported 9.9.
EEOI divides emissions by transport work, which for this vessel and year was 3,843,126,646 tonne-miles over 59,366 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 603.4% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2021, 2022, 2023, so the series has gaps.
From 2024 to 2025, emissions rose 107.5% and CO₂ per nautical mile fell 9.2%.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
- 38,525 t
- Methane (CH₄)
- 0.60 t
- Nitrous oxide (N₂O)
- 2.17 t
- Under EU ETS
- 11,302 t, 30% of total
Laden voyages2025
- CO₂ on laden voyages
- 21,350 t, 56% of total
- Fuel, laden
- 6,826 t
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 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.