Chemical tanker · Denmark flag · built 2003

AETHER SAIL

IMO 9277371 Sanctions listing5 reporting years

CO₂ reported 2022: 10,689 t
Fuel burned: 3,334 t
Distance: 56,692 nm
Time at sea: 5,037 h
Emitted at berth: 10% of total
Share of year under way: 57%
Gross tonnage: 9,993

AETHER SAIL — Wolfgang Fricke, CC BY 3.0 · File

Vessel particulars

IMO number: 9277371
Previously reported as: TERNVAG
Ship type: Chemical tanker
Gross tonnage: 9,993
Length overall: 141.2 m
Year built: 2003
Flag state: Denmark
Port of registry: Skagen
Ice class: IA
Technical efficiency (design): EIV (12.94 gCO₂/t·nm)
Operator: Terntank
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2023-04-05
Compliance document expires: 2024-06-30

Flag state is derived from the reported port of registry, not reported directly, and reflects the registry at the time of reporting.

Efficiency against its own type2022

Position 1,104 of 1,334 qualifying chemical tankers by EEOI, at the 83th percentile. The dashed line is the type median, 15.7; this vessel reported 29.7.

Across the 9 ranked vessels operated by Terntank, the median percentile is 78. This vessel is less efficient than its own fleet median.

EEOI divides emissions by transport work, which for this vessel and year was 359,790,643 tonn-nmover 56,692 nautical miles.

Reported CO₂ by year

Between 2018 and 2022 reported CO₂ rose by 5.0%.

From 2021 to 2022, emissions fell 1.5% while distance sailed fell 3.7%and CO₂ per nautical mile rose 2.2%.That points mainly to how much the vessel sailed, rather than the other.

Annual returns2018–2022

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2022	10,689	3,334	56,692	5,037	1,032	188.6	29.7	83
2021	10,856	3,386	58,852	5,140	843	184.5	27.7	80
2020	11,599	3,642	55,583	4,711	1,036	208.7	29.8	82
2019	10,638	3,366	50,318	5,916	1,054	211.4	33.6	86
2018	10,178	3,219	47,863	5,788	181	212.6	30.9	84

Where the 2022 emissions occurred

Sanctions listings

List	Programme	Listed	Delisted
ofac_sdn	IRAN-EO13902	—	Still listed

Reproduced from the published source register as of the build date, and not legal advice. A listing attaches to the vessel with this IMO number; ownership and management may have changed since. Check the issuing authority before relying on it.

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) and Wikimedia Commons.
Sanctions: ofac_sdn.

What this page is built on

Reporting years: 5
Ranked by efficiency: yes
Vessel particulars: 4 of 5
Movement data: not observed
Name history: yes
Photograph: yes
Sanctions record: listed
Inspection record: none in US waters

Caveats that apply to every vessel page

EEOI above 100,000 is withheld. Those values come from returns where reported transport work is near zero, which makes the ratio meaningless rather than extreme. Median across the dataset is around 12.

Emission categories overlap. In the MRV return, emissions at berth are also counted inside the voyage legs, so the categories do not sum to the total. They are shown side by side rather than stacked for that reason.

Distance is derived, intensity is reported. The MRV return publishes CO₂ per nautical mile but not the distance itself, which is null in all 106,564 rows of the source. The distance column is therefore filled from the ranking step, which reconstructs it, and is blank for years where a vessel was not ranked. That is why a row can show an intensity without a distance.

Percentile is within type and year. It is the vessel's position among qualifying ships of the same type that year, where lower is more efficient. A blank means the vessel did not qualify for ranking that year.

Sister ships share a builder, a type and a build year within two years of this vessel. That holds hull and machinery roughly constant and leaves operation as the variable, which is why they are listed before nearest-by-tonnage.

Methane and nitrous oxide start in 2024. They were not reported before that period, so earlier years cannot be compared against them.

Technical efficiency is a design figure fixed at construction. A vessel can hold a good index and still emit heavily by sailing fast, waiting at anchor or carrying little.

Inspection records cover United States waters only. An empty record is not evidence of a clean history elsewhere.

Empty means unreported, never zero. Nothing here is modelled, estimated or interpolated. See the methodology.

Something wrong on this page? See corrections. We do not hold the source registers and cannot amend them, but we will fix anything we have got wrong in reproducing them.