Navalyze · Ro-ro · Ship

ELYSSA

IMO: 9208007
Type: Ro-ro ship
Average cargo carried: 2,342 t
Flag (estimated): Tunisia
Port of registry: La Goulette
Technical efficiency: EIV 11.64 g CO₂/t·nm

ISM company (DoC holder) in 2025: COTUNAV

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 2,573 t of cargo on average.

Fuel kg/nm

128

Ro-ro median 109 kg/nm (+17%)

CO₂ per transport work (cargo)

155

g CO₂/t·nm · Ro-ro median 103 (+51%)

Average speed

15.2 kn

Ro-ro median 14.4 kn (+6%)

Fuel per day at sea

46.8 t/day

Fuel consumed

7,030 t

CO₂ emitted

21,924 t

Distance sailed

54,801 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,607 h

150 days, 41% 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 121 kg/nm · median 105 (+15%)

56.6Ranks 160 of 235, lowest first145

Average speedThis ship 15.9 kn · median 14.4 (+10%)

10.9Faster than 73% of ro-ro ships17.0

CO₂ per transport work (cargo)This ship 161 g CO₂/t·nm · median 95.2 (+69%)

47.4Ranks 167 of 235, lowest first297

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

Where the emissions happen, 2020

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 ports4%
From the EU45%
Into the EU47%
At berth in the EU4%

Fuel burned laden

–

Not reported

CO₂ at berth

984 t

4.5% 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

ELYSSA
Ro-ro median

100.0110.0120.0130.0140.0

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

Average speed, kn

ELYSSA
Ro-ro median

14.015.016.017.0

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

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

ELYSSA
Ro-ro median

80.0100120140160180

’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	+0.3 kn	+5%	+7%	−5%	−3%	0.3 kn faster, fuel per mile up 5%; in line with the speed change.
2023→2024	−0.1 kn	−4%	−4%	−5%	+4%	Same speed, fuel per mile down 4%; in line with the speed change.
2022→2023	−0.5 kn	−3%	−6%	−6%	+12%	0.5 kn slower, fuel per mile down 3%; in line with the speed change.
2021→2022	−0.3 kn	−2%	−4%	+12%	−4%	0.3 kn slower, fuel per mile down 2%; in line with the speed change.
2020→2021	+1.3 kn	−2%	+7%	+33%	−5%	1.3 kn faster, fuel per mile down 2%; better than speed alone explains (hull, engine or trade).
2019→2020	−1.0 kn	+4%	−3%	−32%	+26%	1.0 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.2 kn	−7%	−6%	+11%	−17%	Same speed, fuel per mile down 7%; better than speed alone explains (hull, engine 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	8,446	26,356	70,054	4,405	15.9	121	161	–
2024	COTUNAV	8,413	26,243	73,429	4,711	15.6	115	165	96%
2023	not published	9,168	28,589	77,099	4,897	15.7	119	159	96%
2022	not published	10,103	31,505	82,049	5,066	16.2	123	142	97%
2021	not published	9,193	28,662	73,146	4,420	16.5	126	147	97%
2020	not published	7,030	21,924	54,801	3,607	15.2	128	155	–
2019	not published	9,925	30,946	80,264	4,951	16.2	124	124	96%
2018	not published	9,647	30,060	72,349	4,510	16.0	133	150	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2025	COTUNAV	161	95.2	+69%	167 of 235	Verifavia	C
2024	COTUNAV	165	97.5	+69%	160 of 220	Verifavia	C
2023	not published	159	109	+46%	149 of 221	Verifavia	C
2022	not published	142	90.6	+56%	159 of 223	Verifavia	C
2021	not published	147	104	+42%	151 of 219	Verifavia	C
2020	not published	155	103	+51%	162 of 238	Verifavia	C
2019	not published	124	90.9	+36%	179 of 271	Verifavia	B+C
2018	not published	150	91.0	+65%	198 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.