Navalyze · Vehicle carrier · Ship

OPAL ACE

IMO: 9539183
Type: Vehicle carrier
Average cargo carried: 1,103 t
Flag (estimated): Cayman Islands
Port of registry: George Town
Technical efficiency: EEXI 14.90 g CO₂/t·nm

ISM company (DoC holder) in 2025: MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD. · part of MOL

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 5,427 t of cargo on average.

Fuel kg/nm

101

Vehicle carrier median 103 kg/nm (−2%)

CO₂ per transport work (cargo)

58.7

g CO₂/t·nm · Vehicle carrier median 56.6 (+4%)

Average speed

17.2 kn

Vehicle carrier median 14.5 kn (+19%)

Fuel per day at sea

41.8 t/day

Fuel consumed

2,132 t

CO₂ emitted

6,731 t

Distance sailed

21,122 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,225 h

51 days, 14% 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 93.5 kg/nm · median 99.9 (−6%)

79.6Ranks 157 of 506, lowest first119

Average speedThis ship 16.1 kn · median 14.4 (+12%)

12.0Faster than 92% of vehicle carrier ships15.9

CO₂ per transport work (cargo)This ship 265 g CO₂/t·nm · median 55.4 (+380%)

34.7Ranks 485 of 506, lowest first158

Middle 80% of shipsMiddle 50%Vehicle carrier medianThis ship

Where the emissions happen, 2023

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 ports27%
From the EU19%
Into the EU52%
At berth in the EU2%

Fuel burned laden

2,081 t

98% of all fuel; 2% in ballast or unladen

CO₂ at berth

162 t

2.4% 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

OPAL ACE
Vehicle carrier median

70.080.090.0100.0110.0

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

Average speed, kn

OPAL ACE
Vehicle carrier median

12.014.016.018.0

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

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

OPAL ACE
Vehicle carrier median

0.0100200300

’182018’202020’212021’232023’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.2 kn	−11%	−10%	−58%	–	Same speed, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2023→2024	−1.3 kn	+4%	−4%	+113%	–	1.3 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.3 kn	+13%	+15%	+84%	–	0.3 kn faster, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+2.4 kn	+20%	+41%	+31%	–	2.4 kn faster, fuel per mile up 20%; better than speed alone explains (hull, engine or trade).
2020→2021	+1.6 kn	−17%	−8%	+15%	−50%	1.6 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2018→2020	−3.0 kn	−3%	−21%	−84%	+23%	3.0 kn slower, fuel per mile down 3%; 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	MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD.	1,760	5,516	18,835	1,171	16.1	93.5	265	22%
2024	MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD.	4,728	14,766	45,045	2,833	15.9	105	–	71%
2023	not published	2,132	6,731	21,122	1,225	17.2	101	58.7	98%
2022	not published	1,028	3,243	11,501	680	16.9	89.4	11,221	2%
2021	not published	653	2,061	8,796	607	14.5	74.2	33.4	98%
2020	not published	690	2,185	7,673	594	12.9	89.9	67.1	57%
2018	not published	4,387	13,708	47,278	2,977	15.9	92.8	54.5	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Vehicle carrier median	vs Vehicle carrier	Rank	Verifier	Methods
2025	MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD.	265	55.4	+380%	485 of 506	ClassNK	C
2024	MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD.	–	–	–	–	ClassNK	C
2023	not published	58.7	56.6	+4%	222 of 417	ClassNK	C
2022	not published	–	–	–	–	ClassNK	C
2021	not published	33.4	59.6	−44%	8 of 459	ClassNK	C
2020	not published	67.1	57.3	+17%	291 of 449	ClassNK	C
2018	not published	54.5	62.4	−13%	126 of 434	ClassNK	C

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.