Container ship · Portugal flag · built 2005
INDEPENDENT QUEST: CO₂ emissions 2018–2025
IMO 9246700 EU ETS7 reporting years
- CO₂ reported 2025
- 36,051 t
- Fuel burned
- 11,575 t
- Distance
- 81,657 nm
- Time at sea
- 5,036 h
- Emitted at berth
- 2% of total
- Share of year under way
- 57%
- Gross tonnage
- 35,881
INDEPENDENT QUEST 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 35,881 gross tonnage it is smaller than 60% of the other 3,000 container ships with a recorded tonnage. It is one of 307 container ships here under the Portugal flag, 8.8% of the 3,495 on the register. The same builder is recorded for 80 other vessels here, 41 of them container ships. Its MRV returns name it JPO LEO for 2018 and INDEPENDENT QUEST for 2020–2025. The reported port of registry changed: Monrovia (2018), then Madeira (2020–2025).
Its 36,051 t of CO₂ for 2025 is 2.2 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 441.5 kg CO₂, 19% below the type median of 545.6 kg. It logged 5,036 hours at sea against a median of 3,155 hours for its type that year. 2.0% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 6 years with reported emissions, the highest was 2023 (42,890 t) and the lowest 2020 (12,129 t). Its efficiency percentile within the type went from 79 in 2020 to 73 in 2025 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 4 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 | 36,051 | 11,575 | 81,657 | 5,036 | 727 | 441.5 | 21.9 | 73 |
| 2024 | 38,808 | 12,424 | 90,317 | 5,859 | 865 | 429.7 | 20.8 | 68 |
| 2023 | 42,890 | 13,731 | 99,351 | 6,415 | 603 | 431.7 | 21.7 | 63 |
| 2022 | 39,609 | 12,677 | 92,838 | 5,809 | 669 | 426.6 | 19.4 | 57 |
| 2021 | 39,047 | 12,487 | 98,947 | 6,772 | 517 | 394.6 | 18.4 | 57 |
| 2020 | 12,129 | 3,881 | 28,991 | 2,774 | 275 | 418.4 | 28.0 | 79 |
| 2018 | No EU/EEA voyages reported | |||||||
Vessel particulars
- IMO number
- 9246700
- Previously reported as
- JPO LEO
- Ship type
- Container ship
- Gross tonnage
- 35,881
- Length overall
- 220.3 m
- Beam
- 32.3 m
- Year built
- 2005
- Flag state
- Portugal per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Liberia. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- Szczecin Shipyard
- Port of registry
- Madeira MRV 2025
- Home port
- Madeira
- Technical efficiency (design)
- EEXI (14.37 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2026-01-26
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,339 of 1,838 qualifying container ships by EEOI, at the 73rd percentile. The dashed line is the type median, 14.2; this vessel reported 21.9.
EEOI divides emissions by transport work, which for this vessel and year was 1,643,156,791 tonne-miles over 81,657 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 197.2% higher than in 2020, for EU/EEA voyages only. No return is recorded for 2019, so the series has gaps.
From 2024 to 2025, emissions fell 7.1% while distance sailed fell 9.6%and CO₂ per nautical mile rose 2.7%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 36,619 t
- Methane (CH₄)
- 0.58 t
- Nitrous oxide (N₂O)
- 2.08 t
- Under EU ETS
- 18,970 t, 53% of total
Laden voyages2025
- CO₂ on laden voyages
- 36,051 t, 100% of total
- Fuel, laden
- 11,575 t
- CO₂ per nm, laden
- 441.5 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | VERIFAVIA (UK) LTD | United Kingdom |
| 2020 | NORMEC VERIFAVIA SAS | France |
| 2021 | DNV | Germany |
| 2023 | Dromon Bureau of Shipping | Greece |
| 2024 | RINA HELLAS LTD | Greece |
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 7 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.