Navalyze · Vehicle carrier · Ship

NEPTUNE ETHOS

IMO: 9431862
Type: Vehicle carrier
Average cargo carried: 3,902 t
Flag (estimated): Greece
Port of registry: Piraeus
Technical efficiency: EEXI 20.08 g CO₂/t·nm
Former names: HOEGH SINGAPORE

ISM company (DoC holder) in 2025: Neptune Lines Shipping and Managing Enterprises SA

Report year

2019 at a glance

From the 2019 THETIS-MRV report. Carries about 3,692 t of cargo on average.

Fuel kg/nm

115

Vehicle carrier median 104 kg/nm (+10%)

CO₂ per transport work (cargo)

97.3

g CO₂/t·nm · Vehicle carrier median 59.0 (+65%)

Average speed

13.9 kn

Vehicle carrier median 14.2 kn (−2%)

Fuel per day at sea

38.3 t/day

Fuel consumed

7,728 t

CO₂ emitted

24,221 t

Distance sailed

67,430 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,848 h

202 days, 55% of the year

Within the vehicle carrier fleet, 2025

Set against all 506 vehicle carrier 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 kg/nmThis ship 88.8 kg/nm · median 99.9 (−11%)

79.6Ranks 111 of 506, lowest first119

Average speedThis ship 11.8 kn · median 14.4 (−18%)

12.0Faster than 8% of vehicle carrier ships15.9

CO₂ per transport work (cargo)This ship 71.6 g CO₂/t·nm · median 55.4 (+29%)

34.7Ranks 332 of 506, lowest first158

Middle 80% of shipsMiddle 50%Vehicle carrier medianThis ship

Where the emissions happen, 2019

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 ports88%
From the EU5%
Into the EU0%
At berth in the EU7%

Fuel burned laden

–

Not reported

CO₂ at berth

1,712 t

7.1% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

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

Fuel kg/nm

NEPTUNE ETHOS
Vehicle carrier median

80.090.0100.0110.0120.0

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

Average speed, kn

NEPTUNE ETHOS
Vehicle carrier median

11.012.013.014.015.0

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

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

NEPTUNE ETHOS
Vehicle carrier median

40.060.080.0100120

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.0 kn	−1%	−1%	−4%	−14%	Same speed, fuel per mile flat.
2023→2024	−0.7 kn	−5%	−10%	−9%	+14%	0.7 kn slower, fuel per mile down 5%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−1.3 kn	+4%	−6%	+30%	+2%	1.3 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+1.3 kn	+9%	+20%	+3%	−15%	1.3 kn faster, fuel per mile up 9%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.3 kn	−2%	−4%	+30%	−19%	0.3 kn slower, fuel per mile down 2%; in line with the speed change.
2019→2020	−1.1 kn	−26%	−32%	−45%	+9%	1.1 kn slower, fuel per mile down 26%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.7 kn	+5%	−0%	−9%	+19%	0.7 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Neptune Lines Shipping and Managing Enterprises SA	4,924	15,497	55,453	4,712	11.8	88.8	71.6	–
2024	Neptune Lines Shipping and Managing Enterprises SA	5,200	16,258	58,041	4,916	11.8	89.6	83.7	–
2023	not published	6,008	18,754	63,982	5,136	12.5	93.9	73.6	–
2022	not published	4,433	13,851	49,064	3,549	13.8	90.3	72.2	–
2021	not published	3,971	12,445	47,709	3,815	12.5	83.2	85.4	–
2020	not published	3,129	9,787	36,798	2,874	12.8	85.0	106	–
2019	not published	7,728	24,221	67,430	4,848	13.9	115	97.3	–
2018	not published	8,089	25,304	73,896	5,058	14.6	110	81.5	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Vehicle carrier median	vs Vehicle carrier	Rank	Verifier	Methods
2025	Neptune Lines Shipping and Managing Enterprises SA	71.6	55.4	+29%	332 of 506	DNV	A+B+C
2024	Neptune Lines Shipping and Managing Enterprises SA	83.7	55.3	+51%	265 of 335	DNV	A+B+C
2023	not published	73.6	56.6	+30%	315 of 417	DNV	A+B+C
2022	not published	72.2	57.7	+25%	318 of 463	DNV	A
2021	not published	85.4	59.6	+43%	353 of 459	DNV	A
2020	not published	106	57.3	+85%	386 of 449	DNV	A
2019	not published	97.3	59.0	+65%	356 of 426	DNV	A
2018	not published	81.5	62.4	+31%	315 of 434	DNV	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Vehicle carrier 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 vehicle carrier 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.