Chemical tanker · Liberia flag · built 2012
ALHENA: CO₂ emissions 2018–2025
IMO 9538141 6 reporting years
- CO₂ reported 2022
- 6,058 t
- Fuel burned
- 1,927 t
- Distance
- 17,376 nm
- Time at sea
- 1,622 h
- Emitted at berth
- 3% of total
- Share of year under way
- 19%
- Gross tonnage
- 30,240
ALHENA against its type
Built in 2012, it is 2 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 30,240 gross tonnage it is larger than 94% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 402 chemical tankers here under the Liberia flag, 17.2% of the 2,344 on the register. The same builder is recorded for 192 other vessels here, 87 of them chemical tankers. Its MRV returns name it ALHENA for 2018–2022 and ANGIE for 2025. The reported port of registry changed: Nassau (2018–2022), then MONROVIA (2025).
Its 6,058 t of CO₂ for 2022 is close to the median of 5,807 t among the 1,486 chemical tankers on this register that reported for 2022. Per nautical mile it emitted 348.6 kg CO₂, 31% above the type median of 266.3 kg. It logged 1,622 hours at sea against a median of 1,995 hours for its type that year. 3.4% of its 2022 emissions were at berth; the median for chemical tankers was 8.6%. Its efficiency percentile within the type went from 60 in 2018 to 52 in 2022 (lower is more efficient).
No EU/EEA voyages were reported for 2025: zero CO₂ and zero time at sea, left out of the trend and of any ranking.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | No EU/EEA voyages reported | |||||||
| 2022 | 6,058 | 1,927 | 17,376 | 1,622 | 203 | 348.6 | 15.9 | 52 |
| 2021 | No EU/EEA voyages reported | |||||||
| 2020 | No EU/EEA voyages reported | |||||||
| 2019 | No EU/EEA voyages reported | |||||||
| 2018 | 3,353 | 1,072 | 8,179 | 759 | 51 | 409.9 | 18.6 | 60 |
Vessel particulars
- IMO number
- 9538141
- Previously reported as
- ANGIE
- Ship type
- Chemical tanker
- Gross tonnage
- 30,240
- Length overall
- 183.2 m
- Beam
- 32.2 m
- Year built
- 2012
- Flag state
- Liberia per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Bahamas. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- Nassau MRV 2022
- Technical efficiency (design)
- EEXI (4.85 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2023-05-08
- Compliance document expires
- 2024-06-30
Efficiency against its own type2022
Position 694 of 1,334 qualifying chemical tankers by EEOI, at the 52nd percentile. The dashed line is the type median, 15.7; this vessel reported 15.9.
EEOI divides emissions by transport work, which for this vessel and year was 379,790,596 tonne-miles over 17,376 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2022 was 80.7% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2023, 2024, so the series has gaps.
From 2018 to 2022, emissions rose 80.7% while distance sailed rose 112.4%and CO₂ per nautical mile fell 15.0%.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 | RINA Services Spa | Italy |
| 2022 | RINA HELLAS LTD | Greece |
| 2025 | Bureau Veritas Certification France | France |
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 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.