Oil tanker · Liberia flag · built 2009
IRIDESCENT: CO₂ emissions 2018–2022
IMO 9436018 5 reporting years
- CO₂ reported 2022
- 6,326 t
- Fuel burned
- 2,014 t
- Distance
- 10,851 nm
- Time at sea
- 1,028 h
- Emitted at berth
- 18% of total
- Share of year under way
- 12%
- Gross tonnage
- 62,775
IRIDESCENT against its type
Built in 2009, it is 1 year older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 62,775 gross tonnage it is larger than 61% of the other 2,841 oil tankers with a recorded tonnage. It is one of 718 oil tankers here under the Liberia flag, 20.2% of the 3,548 on the register. The reported port of registry changed: Majuro (2018–2020), then Monrovia (2021–2022).
Its 6,326 t of CO₂ for 2022 is 12% below the median of 7,189 t among the 1,939 oil tankers on this register that reported for 2022. Per nautical mile it emitted 583.0 kg CO₂, 40% above the type median of 415.9 kg. It logged 1,028 hours at sea against a median of 1,731 hours for its type that year. 17.7% of its 2022 emissions were at berth; the median for oil tankers was 9.1%. Across 5 years with reported emissions, the highest was 2018 (14,912 t) and the lowest 2021 (5,883 t). Its efficiency percentile within the type went from 87 in 2018 to 62 in 2022 (lower is more efficient). Of the 3 comparable vessels listed below with a 2022 return, 1 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2022
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2022 | 6,326 | 2,014 | 10,851 | 1,028 | 1,119 | 583.0 | 9.4 | 62 |
| 2021 | 5,883 | 1,865 | 11,416 | 1,154 | 413 | 515.3 | 8.0 | 46 |
| 2020 | 6,615 | 2,095 | — | 804 | 3,006 | 884.3 | 59.4 | not ranked |
| 2019 | 14,280 | 4,556 | 19,083 | 4,753 | 2,787 | 748.3 | 16.4 | 85 |
| 2018 | 14,912 | 4,767 | 21,382 | 3,930 | 2,245 | 697.4 | 17.5 | 87 |
Vessel particulars
- IMO number
- 9436018
- Ship type
- Oil tanker
- Gross tonnage
- 62,775
- Length overall
- 250.0 m
- Beam
- 44.0 m
- Year built
- 2009
- Flag state
- Liberia Wikidata/AIS, undated
- Port of registry
- Monrovia MRV 2022
- Technical efficiency (design)
- EIV (4.4 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2023-04-24
- Compliance document expires
- 2024-06-30
Efficiency against its own type2022
Position 1,102 of 1,771 qualifying oil tankers by EEOI, at the 62nd percentile. The dashed line is the type median, 8.0; this vessel reported 9.4.
EEOI divides emissions by transport work, which for this vessel and year was 674,461,620 tonne-miles over 10,851 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2022 was 57.6% lower than in 2018, for EU/EEA voyages only.
From 2021 to 2022, emissions rose 7.5% while distance sailed fell 5.0%and CO₂ per nautical mile rose 13.1%.That points mainly to how efficiently it sailed, rather than the other.
Where the 2022 emissions occurred
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2022, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 5 MRV reporting years, an efficiency ranking and 4 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, 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.