Navalyze · Ro-ro · Ship

WILHELMINE

IMO: 9539080
Type: Ro-ro ship
Average cargo carried: 764 t
Port of registry: Valletta
Technical efficiency: EEXI 17.70 g CO₂/t·nm

ISM company (DoC holder) in 2025: SHIPLUX IX S.A. · part of Shiplux

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 764 t of cargo on average.

Fuel per mile

71.8 kg/nm

Ro-ro median 104.6 kg/nm (−31%)

CO₂ per transport work (cargo)

297

g CO₂/t·nm · Ro-ro median 95.19 (+212%)

Average speed

13.0 kn

Ro-ro median 14.4 kn (−10%)

Fuel per day at sea

22.5 t/day

Fuel consumed

3,560 t

CO₂ emitted

11,235 t

11,410 t CO₂eq incl. CH₄ and N₂O

Distance sailed

49,579 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,804 h

159 days, 43% 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 per mileThis ship 71.8 kg/nm · median 104.6 (−31%)

56.6Ranks 40 of 235, lowest first145.3

Average speedThis ship 13.0 kn · median 14.4 (−10%)

10.9Faster than 30% of ro-ro ships17.0

CO₂ per transport work (cargo)This ship 296.61 g CO₂/t·nm · median 95.19 (+212%)

47.35Ranks 211 of 235, lowest first297.27

Middle 80% of shipsMiddle 50%Ro-ro 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 ports0%
From the EU47%
Into the EU47%
At berth in the EU6%

53% of this ship's CO₂ falls under the EU ETS (5,955 t).

Fuel burned laden

–

Not reported

CO₂ at berth

6.0%

Alongside in EU ports

Methane (CH₄)

0.2 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 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 per mile, kg/nm

WILHELMINE
Ro-ro median

70.080.090.0100.0110.0120.0

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

Average speed, kn

WILHELMINE
Ro-ro median

12.013.014.015.0

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

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

WILHELMINE
Ro-ro median

0.0100200300400500

’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	+0.1 kn	−1%	+0%	+5%	−6%	Same speed, fuel per mile flat.
2023→2024	+0.2 kn	+0%	+2%	−2%	−17%	Same speed, fuel per mile flat.
2022→2023	−0.3 kn	−4%	−6%	+15%	−20%	0.3 kn slower, fuel per mile down 4%; in line with the speed change.
2021→2022	+0.5 kn	−4%	−1%	−23%	+164%	0.5 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.7 kn	−6%	−11%	−28%	+73%	0.7 kn slower, fuel per mile down 6%; in line with the speed change.
2019→2020	+0.1 kn	+3%	+3%	−2%	+17%	Same speed, fuel per mile up 3%; in line with the speed change.
2018→2019	−0.3 kn	+5%	+2%	+20%	−8%	0.3 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	SHIPLUX IX S.A.	3,560	11,235	49,579	3,804	13.0	71.8	296.61	–
2024	SHIPLUX IX S.A.	3,399	10,728	47,012	3,640	12.9	72.3	314.17	–
2023	not published	3,471	10,954	48,156	3,798	12.7	72.1	376.68	–
2022	not published	3,144	9,924	41,829	3,229	13.0	75.2	470.42	–
2021	not published	4,269	13,496	54,276	4,339	12.5	78.7	177.95	–
2020	not published	6,291	19,935	75,143	5,709	13.2	83.7	102.78	–
2019	not published	6,235	19,706	76,396	5,822	13.1	81.6	88.06	–
2018	not published	4,952	15,626	63,480	4,723	13.4	78.0	96.19	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2025	SHIPLUX IX S.A.	296.61	95.19	+212%	211 of 235	DNV	A+C
2024	SHIPLUX IX S.A.	314.17	97.53	+222%	201 of 220	DNV	A+C
2023	not published	376.68	108.62	+247%	202 of 221	DNV	A+C
2022	not published	470.42	90.62	+419%	216 of 223	DNV	C
2021	not published	177.95	103.64	+72%	164 of 219	DNV	C
2020	not published	102.78	102.77	+0%	120 of 238	DNV	C
2019	not published	88.06	90.89	−3%	126 of 271	DNV	C
2018	not published	96.19	91.03	+6%	146 of 260	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.