Gas carrier · Malta flag · built 2007

HELENA KOSAN: CO₂ emissions 2018–2025

IMO 9342396 EU ETS8 reporting years

CO₂ reported 2025: 8,489 t
Fuel burned: 2,678 t
Distance: 41,343 nm
Time at sea: 4,356 h
Emitted at berth: 9% of total
Share of year under way: 50%
Gross tonnage: 7,465

HELENA KOSAN against its type

Built in 2007, it is 6 years older than the median gas carrier on this register, which was built in 2013 (530 vessels with a known build year). At 7,465 gross tonnage it is smaller than 87% of the other 525 gas carriers with a recorded tonnage. It is one of 59 gas carriers here under the Malta flag, 8.6% of the 688 on the register. The reported port of registry changed: Hellerup (2020–2021), then Valletta (2022–2025).

Its 8,489 t of CO₂ for 2025 is 42% above the median of 5,974 t among the 363 gas carriers on this register that reported for 2025. Per nautical mile it emitted 205.3 kg CO₂, 20% below the type median of 256.2 kg. It logged 4,356 hours at sea against a median of 1,943 hours for its type that year. 8.5% of its 2025 emissions were at berth; the median for gas carriers was 3.8%. Across 8 years with reported emissions, the highest was 2021 (14,195 t) and the lowest 2025 (8,489 t). Its efficiency percentile within the type went from 96 in 2018 to 98 in 2025 (lower is more efficient). Of the 6 comparable vessels listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2025	8,489	2,678	41,343	4,356	724	205.3	122.6	98
2024	9,648	3,070	52,943	4,206	519	182.2	109.5	89
2023	13,808	4,383	61,405	3,976	1,771	224.9	115.4	91
2022	12,562	3,971	46,599	3,540	1,056	269.6	138.6	96
2021	14,195	4,504	61,068	4,200	2,242	232.4	114.0	91
2020	12,012	3,817	56,190	6,638	518	213.8	122.3	89
2019	12,610	4,012	53,777	6,521	876	234.5	129.6	92
2018	11,107	3,529	44,972	7,266	787	247.0	150.9	96

Vessel particulars

IMO number: 9342396
Ship type: Gas carrier
Gross tonnage: 7,465
Length overall: 115.0 m
Beam: 18.6 m
Year built: 2007
Flag state: Malta per EU MRV 2025
Port of registry: Valletta MRV 2025
Technical efficiency (design): EEXI (15.1 gCO₂/t·nm)
Verifier: HELLENIC LLOYD'S S.A., Greece
Accreditation: 1190
Compliance document issued: 2026-03-27
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 285 of 292 qualifying gas carriers by EEOI, at the 98th percentile. The dashed line is the type median, 27.9; this vessel reported 122.6.

EEOI divides emissions by transport work, which for this vessel and year was 69,222,277 tonne-miles over 41,343 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 23.6% lower than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions fell 12.0% while distance sailed fell 21.9%and CO₂ per nautical mile rose 12.7%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 8,621 t
Methane (CH₄): 0.13 t
Nitrous oxide (N₂O): 0.48 t
Under EU ETS: 7,822 t, 92% of total

Verifier history

From reporting year	Verifier	Accredited in
2018	VERIFAVIA (UK) LTD	United Kingdom
2020	Bureau Veritas Certification France	France
2023	HELLENIC LLOYD'S S.A.	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 2018–2025, published by the European Commission.
Vessel particulars: Wikidata (CC0).

This page draws on 8 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.