Navalyze · Ro-ro · Ship

SALAMMBO

IMO: 9142461
Type: Ro-ro ship
Average cargo carried: 1,729 t
Flag (estimated): Tunisia
Port of registry: La Goulette
Technical efficiency: EIV 20.09 g CO₂/t·nm

ISM company (DoC holder) in 2025: COTUNAV

Report year

2022 at a glance

From the 2022 THETIS-MRV report. Carries about 2,091 t of cargo on average.

Fuel kg/nm

96.2

Ro-ro median 110 kg/nm (−13%)

CO₂ per transport work (cargo)

143

g CO₂/t·nm · Ro-ro median 90.6 (+58%)

Average speed

14.4 kn

Ro-ro median 14.6 kn (−1%)

Fuel per day at sea

33.3 t/day

Fuel consumed

2,809 t

CO₂ emitted

8,755 t

Distance sailed

29,193 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,023 h

84 days, 23% 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 133 kg/nm · median 105 (+27%)

56.6Ranks 186 of 235, lowest first145

Average speedThis ship 15.0 kn · median 14.4 (+4%)

10.9Faster than 59% of ro-ro ships17.0

CO₂ per transport work (cargo)This ship 240 g CO₂/t·nm · median 95.2 (+152%)

47.4Ranks 195 of 235, lowest first297

Middle 80% of shipsMiddle 50%Ro-ro medianThis ship

Where the emissions happen, 2022

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

2,750 t

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

CO₂ at berth

192 t

2.2% 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

SALAMMBO
Ro-ro median

90.0100.0110.0120.0130.0140.0

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

Average speed, kn

SALAMMBO
Ro-ro median

14.014.515.015.516.0

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

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

SALAMMBO
Ro-ro median

50.0100150200250

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.6 kn	+26%	+21%	−73%	+7%	0.6 kn slower, fuel per mile up 26%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2024	+1.2 kn	+10%	+19%	+141%	+57%	1.2 kn faster, fuel per mile up 10%; better than speed alone explains (hull, engine or trade).
2021→2022	−1.5 kn	−18%	−26%	−62%	−34%	1.5 kn slower, fuel per mile down 18%; in line with the speed change.
2020→2021	+0.0 kn	−2%	−3%	+38%	+5%	Same speed, fuel per mile down 2%; in line with the speed change.
2019→2020	+0.7 kn	−2%	+3%	−32%	−3%	0.7 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2018→2019	−0.5 kn	+2%	−1%	−2%	+3%	0.5 kn slower, fuel per mile flat; 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	COTUNAV	2,571	8,018	19,318	1,292	15.0	133	240	–
2024	COTUNAV	7,461	23,263	70,450	4,524	15.6	106	225	–
2022	not published	2,809	8,755	29,193	2,023	14.4	96.2	143	98%
2021	not published	9,078	28,292	77,065	4,840	15.9	118	216	98%
2020	not published	6,738	21,009	55,767	3,501	15.9	121	206	–
2019	not published	10,111	31,511	82,097	5,389	15.2	123	212	98%
2018	not published	10,112	31,517	83,544	5,331	15.7	121	206	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2025	COTUNAV	240	95.2	+152%	195 of 235	Verifavia	C
2024	COTUNAV	225	97.5	+131%	181 of 220	Verifavia	C
2022	not published	143	90.6	+58%	162 of 223	Verifavia	C
2021	not published	216	104	+108%	178 of 219	Verifavia	C
2020	not published	206	103	+100%	185 of 238	Verifavia	B+C
2019	not published	212	90.9	+133%	222 of 271	Verifavia	B+C
2018	not published	206	91.0	+126%	220 of 260	Verifavia	B+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.