Navalyze · Gas carrier (LPG) · Ship

HELENA KOSAN

IMO: 9342396
Type: Gas carrier
Average cargo carried: 1,674 t
Port of registry: Valletta
Technical efficiency: EEXI 15.10 g CO₂/t·nm

ISM company (DoC holder) in 2025: BW Epic Kosan Maritime Pte. Ltd. · part of BW Group

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 1,674 t of cargo on average.

Fuel per mile

64.8 kg/nm

Gas carrier (LPG) median 81.5 kg/nm (−20%)

CO₂ per transport work (cargo)

123

g CO₂/t·nm · Gas carrier (LPG) median 35.56 (+245%)

Average speed

9.5 kn

Gas carrier (LPG) median 12.6 kn (−25%)

Fuel per day at sea

14.8 t/day

Fuel consumed

2,678 t

CO₂ emitted

8,489 t

8,621 t CO₂eq incl. CH₄ and N₂O

Distance sailed

41,343 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,356 h

182 days, 50% of the year

Within the gas carrier (LPG) fleet, 2025

Set against all 355 gas carrier (LPG) ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel per mileThis ship 64.8 kg/nm · median 81.5 (−20%)

49.8Ranks 75 of 355, lowest first124.4

Average speedThis ship 9.5 kn · median 12.6 (−25%)

8.8Faster than 12% of gas carrier (LPG) ships14.6

CO₂ per transport work (cargo)This ship 122.64 g CO₂/t·nm · median 35.56 (+245%)

14.36Ranks 322 of 355, lowest first120.18

Middle 80% of shipsMiddle 50%Gas carrier (LPG) medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports76%
From the EU9%
Into the EU7%
At berth in the EU9%

92% of this ship's CO₂ falls under the EU ETS (7,822 t).

Fuel burned laden

–

Not reported

CO₂ at berth

8.5%

Alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift from CH₄ and N₂O, counted in full from 2026

Over the years

Full-year reports only. The Gas carrier (LPG) median is the middle ship of all gas carrier (LPG) ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

HELENA KOSAN
Gas carrier (LPG) median

50.060.070.080.090.0100.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

HELENA KOSAN
Gas carrier (LPG) median

5.07.510.012.515.017.5

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (cargo), g CO₂/t·nm

HELENA KOSAN
Gas carrier (LPG) median

0.050.0100150200

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−3.1 kn	+12%	−15%	−22%	+12%	3.1 kn slower, fuel per mile up 12%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−2.8 kn	−19%	−34%	−14%	−5%	2.8 kn slower, fuel per mile down 19%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+2.2 kn	−16%	−1%	+32%	−17%	2.2 kn faster, fuel per mile down 16%; better than speed alone explains (hull, engine or trade).
2021→2022	−1.3 kn	+15%	+5%	−24%	+22%	1.3 kn slower, fuel per mile up 15%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+6.0 kn	+9%	+86%	+9%	−7%	6.0 kn faster, fuel per mile up 9%; better than speed alone explains (hull, engine or trade).
2019→2020	+0.3 kn	−9%	−7%	+4%	−6%	0.3 kn faster, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2018→2019	+2.0 kn	−5%	+26%	+20%	−14%	2.0 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	BW Epic Kosan Maritime Pte. Ltd.	2,678	8,489	41,343	4,356	9.5	64.8	122.64	–
2024	BW Epic Kosan Maritime Pte. Ltd.	3,070	9,648	52,943	4,206	12.6	58.0	109.51	–
2023	not published	4,383	13,808	61,405	3,976	15.4	71.4	115.43	–
2022	not published	3,971	12,562	46,599	3,540	13.2	85.2	138.61	–
2021	not published	4,504	14,195	61,068	4,200	14.5	73.8	114.04	–
2020	not published	3,817	12,012	56,190	6,638	8.5	67.9	122.35	–
2019	not published	4,012	12,610	53,777	6,521	8.2	74.6	129.58	–
2018	not published	3,529	11,107	44,972	7,266	6.2	78.5	150.90	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Gas carrier (LPG) median	vs Gas carrier (LPG)	Rank	Verifier	Methods
2025	BW Epic Kosan Maritime Pte. Ltd.	122.64	35.56	+245%	322 of 355	Lloyd's Register	A+B
2024	BW Epic Kosan Maritime Pte. Ltd.	109.51	35.82	+206%	265 of 306	Lloyd's Register	A
2023	not published	115.43	41.77	+176%	284 of 330	Lloyd's Register	A
2022	not published	138.61	42.53	+226%	329 of 348	Bureau Veritas	C
2021	not published	114.04	46.91	+143%	283 of 323	Bureau Veritas	C
2020	not published	122.35	42.29	+189%	292 of 339	Bureau Veritas	C
2019	not published	129.58	45.85	+183%	296 of 331	Verifavia	C
2018	not published	150.90	53.11	+184%	274 of 297	Verifavia	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Gas carrier (LPG) ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's gas carrier (LPG) ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.