Chemical tanker · Palau flag · built 2007

AKERAIOS: CO₂ emissions 2020–2024

IMO 9328297 3 reporting years

CO₂ reported 2021: 13,913 t
Fuel burned: 4,383 t
Distance: 38,907 nm
Time at sea: 3,198 h
Emitted at berth: 11% of total
Share of year under way: 37%
Gross tonnage: 27,916

AKERAIOS against its type

Built in 2007, it is 3 years older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 27,916 gross tonnage it is larger than 65% 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 AKERAIOS for 2020, RIDGEBURY APOLLO for 2021 and YILDIZ for 2024. The reported port of registry changed: monrovia liberia (2020), then MONROVIA (2021), then MALAKAL HARBOR (2024).

Its 13,913 t of CO₂ for 2021 is 2.3 times the median of 6,071 t among the 1,418 chemical tankers on this register that reported for 2021. Per nautical mile it emitted 357.6 kg CO₂, 36% above the type median of 262.7 kg. It logged 3,198 hours at sea against a median of 2,112 hours for its type that year. 10.6% of its 2021 emissions were at berth; the median for chemical tankers was 8.4%. Its efficiency percentile within the type went from 72 in 2020 to 88 in 2021 (lower is more efficient). The one sister ship listed below with a 2021 return reported a lower CO₂ per nautical mile.

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 year2020–2024

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2024	No EU/EEA voyages reported
2021	13,913	4,383	38,907	3,198	1,469	357.6	18.4	88
2020	5,508	1,762	15,703	1,422	18	350.8	22.1	72

Vessel particulars

IMO number: 9328297
Previously reported as: RIDGEBURY APOLLO, YILDIZ
Ship type: Chemical tanker
Gross tonnage: 27,916
Length overall: 184.0 m
Beam: 32.2 m
Year built: 2007
Flag state: Palau per EU MRV 2024
Sources disagree: Wikidata/AIS (undated) list Liberia. The flag shown is from the newest official source, the EU MRV return for 2024.
Builder: HD Hyundai Mipo
Port of registry: MONROVIA MRV 2021
Technical efficiency (design): EEXI (5.08 gCO₂/t·nm)
Verifier: Nippon Kaiji Kyokai, Japan
Accreditation: VS-21325-01
Compliance document issued: 2022-05-06
Compliance document expires: 2023-06-30

Efficiency against its own type2021

Position 1,448 of 1,636 qualifying oil tankers by EEOI, at the 88th percentile. The dashed line is the type median, 8.4; this vessel reported 18.4.

EEOI divides emissions by transport work, which for this vessel and year was 754,079,675 tonne-miles over 38,907 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2021 was 152.6% higher than in 2020, for EU/EEA voyages only. No return is recorded for 2022, 2023, so the series has gaps.

From 2020 to 2021, emissions rose 152.6% while distance sailed rose 147.8%and CO₂ per nautical mile rose 1.9%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2021 emissions occurred

Verifier history

From reporting year	Verifier	Accredited in
2020	HELLENIC LLOYD'S S.A.	Greece
2021	Nippon Kaiji Kyokai	Japan
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 2020–2024, published by the European Commission.
Vessel particulars: Wikidata (CC0) and Wikimedia Commons.

This page draws on 3 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.