Chemical tanker · Palau flag · built 2011
AGENA: CO₂ emissions 2018–2024
IMO 9587831 6 reporting years
- CO₂ reported 2022
- 10,795 t
- Fuel burned
- 3,440 t
- Distance
- 38,719 nm
- Time at sea
- 4,508 h
- Emitted at berth
- 27% of total
- Share of year under way
- 51%
- Gross tonnage
- 23,248
AGENA against its type
Built in 2011, it is 1 year newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 23,248 gross tonnage it is larger than 51% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 7 chemical tankers here under the Palau flag, 0.3% of the 2,344 on the register. The same builder is recorded for 983 other vessels here, 330 of them chemical tankers. Its MRV returns name it AGENA for 2018–2020, LEON POSEIDON for 2021–2022 and ZAPHIRA for 2024. The reported port of registry changed: Luxembourg (2018–2020), then Monrovia (2021–2022), then MALAKAL HARBOR (2024).
Its 10,795 t of CO₂ for 2022 is 1.9 times the median of 5,807 t among the 1,486 chemical tankers on this register that reported for 2022. Per nautical mile it emitted 278.8 kg CO₂, close to the type median of 266.3 kg. It logged 4,508 hours at sea against a median of 1,995 hours for its type that year. 27.0% of its 2022 emissions were at berth; the median for chemical tankers was 8.6%. Across 5 years with reported emissions, the highest was 2019 (11,678 t) and the lowest 2021 (2,596 t). Its efficiency percentile within the type went from 62 in 2019 to 58 in 2022 (lower is more efficient).
No EU/EEA voyages were reported for 2024: zero CO₂ and zero time at sea, left out of the trend and of any ranking.
Emissions by year2018–2024
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2024 | No EU/EEA voyages reported | |||||||
| 2022 | 10,795 | 3,440 | 38,719 | 4,508 | 2,913 | 278.8 | 17.7 | 58 |
| 2021 | 2,596 | 821 | 7,327 | 810 | 504 | 354.3 | 34.0 | 87 |
| 2020 | 11,062 | 3,497 | 36,834 | 3,795 | 1,002 | 300.3 | 16.9 | 56 |
| 2019 | 11,678 | 3,726 | 38,657 | 6,089 | 1,270 | 302.1 | 19.2 | 62 |
| 2018 | 5,650 | 1,796 | — | 3,373 | 862 | 262.0 | 1.0 | not ranked |
Vessel particulars
- IMO number
- 9587831
- Previously reported as
- LEON POSEIDON, ZAPHIRA
- Ship type
- Chemical tanker
- Gross tonnage
- 23,248
- Length overall
- 184.0 m
- Year built
- 2011
- Flag state
- Palau per EU MRV 2024
- Builder
- HD Hyundai Mipo
- Port of registry
- Monrovia MRV 2022
- Technical efficiency (design)
- EEXI (5.7 gCO₂/t·nm)
- Verifier
- ICS Verification Services Single Member P.C., Greece
- Accreditation
- 1101-3
- Compliance document issued
- 2023-06-30
- Compliance document expires
- 2024-06-30
Efficiency against its own type2022
Position 781 of 1,334 qualifying chemical tankers by EEOI, at the 58th percentile. The dashed line is the type median, 15.7; this vessel reported 17.7.
EEOI divides emissions by transport work, which for this vessel and year was 610,896,435 tonne-miles over 38,719 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2022 was 91.1% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2023, so the series has gaps.
From 2021 to 2022, emissions rose 315.9% while distance sailed rose 428.5%and CO₂ per nautical mile fell 21.3%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2022 emissions occurred
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Bureau Veritas Certification France | France |
| 2021 | ICS Verification Services Single Member P.C. | 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 2018–2024, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 6 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.