Navalyze · Ro-ro · Ship

LEEVSTEN

IMO: 9869954
Type: Ro-ro ship
Average cargo carried: 2,878 t
Flag (estimated): Singapore
Port of registry: Singapore
Technical efficiency: EEXI 12.10 g CO₂/t·nm

ISM company (DoC holder) in 2025: SIEM Ship Management · part of Siem

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 3,004 t of cargo on average.

Fuel kg/nm

136

Ro-ro median 107 kg/nm (+26%)

CO₂ per transport work (cargo)

141

g CO₂/t·nm · Ro-ro median 109 (+30%)

Average speed

16.4 kn

Ro-ro median 14.6 kn (+12%)

Fuel per day at sea

53.3 t/day

Fuel consumed

12,280 t

CO₂ emitted

38,278 t

Distance sailed

90,475 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,526 h

230 days, 63% of the year

Within the ro-ro fleet, 2025

Set against all 235 ro-ro 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 125 kg/nm · median 105 (+19%)

56.6Ranks 166 of 235, lowest first145

Average speedThis ship 16.9 kn · median 14.4 (+17%)

10.9Faster than 88% of ro-ro ships17.0

CO₂ per transport work (cargo)This ship 135 g CO₂/t·nm · median 95.2 (+42%)

47.4Ranks 150 of 235, lowest first297

Middle 80% of shipsMiddle 50%Ro-ro 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 ports0%
From the EU49%
Into the EU49%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

700 t

1.8% 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 Ro-ro median is the middle ship of all ro-ro ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

LEEVSTEN
Ro-ro median

100.0110.0120.0130.0140.0150.0

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

Average speed, kn

LEEVSTEN
Ro-ro median

14.015.016.017.018.0

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

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

LEEVSTEN
Ro-ro median

80.0100120140160

’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	+0.8 kn	−7%	−3%	+15%	+1%	0.8 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.3 kn	−1%	−3%	−14%	−5%	Same speed, fuel per mile flat.
2022→2023	−1.1 kn	−6%	−12%	−5%	+8%	1.1 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.3 kn	+2%	+4%	−0%	−3%	0.3 kn faster, fuel per mile up 2%; in line with the speed change.
2020→2021	+0.0 kn	+2%	+2%	+11%	−0%	Same speed, fuel per mile up 2%; in line with the speed change.

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	SIEM Ship Management	11,211	34,976	89,999	5,337	16.9	125	135	–
2024	SIEM Ship Management	10,465	32,617	78,097	4,861	16.1	134	133	–
2023	not published	12,280	38,278	90,475	5,526	16.4	136	141	–
2022	not published	13,712	42,754	94,869	5,423	17.5	145	130	–
2021	not published	13,444	41,933	95,284	5,535	17.2	141	134	–
2020	not published	11,858	36,966	85,797	4,986	17.2	138	134	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2025	SIEM Ship Management	135	95.2	+42%	150 of 235	DNV	C
2024	SIEM Ship Management	133	97.5	+37%	139 of 220	DNV	C
2023	not published	141	109	+30%	138 of 221	DNV	C
2022	not published	130	90.6	+43%	151 of 223	DNV	C
2021	not published	134	104	+29%	145 of 219	DNV	C
2020	not published	134	103	+30%	148 of 238	DNV	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Ro-ro 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 ro-ro 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.