Navalyze · Ro-ro · Ship

ASSOS SEAWAYS

IMO: 9293416
Type: Ro-ro ship
Average cargo carried: 4,857 t
Flag (estimated): Turkiye
Port of registry: Istanbul
Technical efficiency: EEXI 14.60 g CO₂/t·nm
Former names: SAFFET ULUSOY

ISM company (DoC holder) in 2025: DFDS DENIZCILIK VE TASIMACILIK A.S. · part of DFDS

Report year

2022 at a glance

From the 2022 THETIS-MRV report. Carries about 5,459 t of cargo on average.

Fuel kg/nm

118

Ro-ro median 110 kg/nm (+7%)

CO₂ per transport work (cargo)

67.1

g CO₂/t·nm · Ro-ro median 90.6 (−26%)

Average speed

17.0 kn

Ro-ro median 14.6 kn (+16%)

Fuel per day at sea

47.8 t/day

Fuel consumed

13,038 t

CO₂ emitted

40,620 t

Distance sailed

110,939 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,545 h

273 days, 75% 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 116 kg/nm · median 105 (+11%)

56.6Ranks 149 of 235, lowest first145

Average speedThis ship 17.3 kn · median 14.4 (+20%)

10.9Faster than 93% of ro-ro ships17.0

CO₂ per transport work (cargo)This ship 74.5 g CO₂/t·nm · median 95.2 (−22%)

47.4Ranks 73 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 ports17%
From the EU44%
Into the EU37%
At berth in the EU1%

Fuel burned laden

–

Not reported

CO₂ at berth

451 t

1.1% 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

ASSOS SEAWAYS
Ro-ro median

100.0105.0110.0115.0120.0125.0

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

Average speed, kn

ASSOS SEAWAYS
Ro-ro median

14.016.018.020.0

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

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

ASSOS SEAWAYS
Ro-ro median

60.080.0100120

’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	+0.6 kn	−1%	+3%	−5%	−0%	0.6 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2023→2024	−0.5 kn	−0%	−3%	+3%	+8%	0.5 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.2 kn	−1%	+1%	+2%	+4%	Same speed, fuel per mile flat.
2021→2022	−0.7 kn	+1%	−4%	−9%	−3%	0.7 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.3 kn	−3%	−5%	+20%	−7%	0.3 kn slower, fuel per mile down 3%; in line with the speed change.
2019→2020	−0.6 kn	−1%	−4%	−1%	−7%	0.6 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.3 kn	+1%	−0%	−13%	+8%	Same speed, fuel per mile flat.

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	DFDS DENIZCILIK VE TASIMACILIK A.S.	12,848	40,029	110,571	6,381	17.3	116	74.5	–
2024	DFDS DENIZCILIK VE TASIMACILIK A.S.	13,615	42,417	116,624	6,995	16.7	117	74.8	–
2023	not published	13,176	41,058	112,731	6,557	17.2	117	69.5	–
2022	not published	13,038	40,620	110,939	6,545	17.0	118	67.1	–
2021	not published	14,232	44,339	121,803	6,889	17.7	117	69.0	–
2020	not published	12,157	37,875	101,184	5,615	18.0	120	74.0	–
2019	not published	12,384	38,576	102,250	5,500	18.6	121	79.6	–
2018	not published	14,061	43,800	117,418	6,226	18.9	120	73.8	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2025	DFDS DENIZCILIK VE TASIMACILIK A.S.	74.5	95.2	−22%	73 of 235	DNV	B
2024	DFDS DENIZCILIK VE TASIMACILIK A.S.	74.8	97.5	−23%	71 of 220	DNV	A
2023	not published	69.5	109	−36%	50 of 221	DNV	A
2022	not published	67.1	90.6	−26%	54 of 223	DNV	A
2021	not published	69.0	104	−33%	59 of 219	Lloyd's Register	A
2020	not published	74.0	103	−28%	68 of 238	Lloyd's Register	A
2019	not published	79.6	90.9	−12%	98 of 271	Lloyd's Register	–
2018	not published	73.8	91.0	−19%	77 of 260	DNV	A

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.