General cargo ship · Singapore flag · built 2011
OSLO FOREST 1: CO₂ emissions 2018–2025
IMO 9534444 EU ETS8 reporting years
- CO₂ reported 2025
- 6,946 t
- Fuel burned
- 2,212 t
- Time at sea
- 4,260 h
- Emitted at berth
- 3% of total
- Share of year under way
- 49%
- Gross tonnage
- 6,693
OSLO FOREST 1 against its type
Built in 2011, it is 4 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 6,693 gross tonnage it is larger than 53% of the other 2,665 general cargo ships with a recorded tonnage. It is one of 51 general cargo ships here under the Singapore flag, 1.7% of the 3,081 on the register. The same builder is recorded for 34 other vessels here, all of them general cargo ships. Its MRV returns name it OSLO FOREST 1 for 2018–2022 and TANJA for 2023–2025. The reported port of registry changed: Singapore (2019), then Oslo (2020–2022).
Its 6,946 t of CO₂ for 2025 is 2.5 times 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 143.3 kg CO₂, 17% above the type median of 122.2 kg. It logged 4,260 hours at sea against a median of 3,044 hours for its type that year. 3.4% of its 2025 emissions were at berth; the median for general cargo ships was 4.3%. Across 8 years with reported emissions, the highest was 2019 (9,120 t) and the lowest 2023 (6,705 t). Of the 8 sister ships listed below with a 2025 return, 7 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 | 6,946 | 2,212 | — | 4,260 | 233 | 143.3 | — | — |
| 2024 | 7,535 | 2,380 | 53,328 | 4,555 | 301 | 141.3 | 36.6 | 80 |
| 2023 | 6,705 | 2,125 | — | 4,211 | 222 | 139.6 | — | — |
| 2022 | 7,152 | 2,266 | — | 4,680 | 204 | 130.4 | — | — |
| 2021 | 7,962 | 2,519 | — | 5,051 | 275 | 141.5 | — | — |
| 2020 | 8,870 | 2,825 | — | 5,816 | 267 | 135.5 | — | — |
| 2019 | 9,120 | 2,909 | — | 6,066 | 205 | 143.2 | — | — |
| 2018 | 8,500 | 2,710 | — | 5,790 | 253 | 139.3 | — | — |
Vessel particulars
- IMO number
- 9534444
- Previously reported as
- TANJA
- Call sign
- V2HW9
- Ship type
- General cargo ship
- Gross tonnage
- 6,693
- Length overall
- 116.3 m
- Beam
- 18.0 m
- Year built
- 2011
- Flag state
- Singapore Wikidata/AIS, undated
- Builder
- Scheepswerf Peters, Kampen
- Home port
- St. John´s
- Technical efficiency (design)
- EIV (13.3 gCO₂/t·nm)
- Verifier
- EnvService GmbH, Germany
- Accreditation
- D-VS-20809-01-00
- Compliance document issued
- 2026-03-10
- Compliance document expires
- 2027-06-30
Efficiency against its own type2024
Position 257 of 321 qualifying general cargo ships by EEOI, at the 80th percentile. The dashed line is the type median, 23.6; this vessel reported 36.6.
EEOI divides emissions by transport work, which for this vessel and year was 205,867,760 tonne-miles over 53,328 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 18.3% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 7.8% and CO₂ per nautical mile rose 1.4%.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
- 7,055 t
- Methane (CH₄)
- 0.11 t
- Nitrous oxide (N₂O)
- 0.40 t
- Under EU ETS
- 3,933 t, 57% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | DNV | Germany |
| 2023 | EnvService 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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 8 MRV reporting years, an efficiency ranking, 5 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.