Navalyze · Ro-pax · Ship

DUNKERQUE SEAWAYS

IMO: 9293076
Type: Ro-pax ship
Flag (estimated): United Kingdom
Port of registry: Dover
Technical efficiency: EEXI 24.56 g CO₂/t·nm

ISM company (DoC holder) in 2025: DFDS A/S · part of DFDS

Report year

2023 at a glance

From the 2023 THETIS-MRV report.

Fuel kg/nm

183

Ro-pax median 153 kg/nm (+19%)

CO₂ per transport work (pax)

706

g CO₂/pax·nm · Ro-pax median 680 (+4%)

CO₂ per transport work (freight)

272

g CO₂/t·nm · Ro-pax median 234 (+16%)

Average speed

15.4 kn

Ro-pax median 16.0 kn (−4%)

Fuel per day at sea

67.6 t/day

Fuel consumed

15,006 t

CO₂ emitted

46,738 t

Distance sailed

82,113 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,332 h

222 days, 61% of the year

Within the ro-pax fleet, 2025

Set against all 408 ro-pax 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 187 kg/nm · median 150 (+24%)

69.3Ranks 308 of 408, lowest first232

Average speedThis ship 15.7 kn · median 15.8 (−1%)

12.0Faster than 49% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 1,769 g CO₂/pax·nm · median 567 (+212%)

66.8Ranks 378 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 93.7 g CO₂/t·nm · median 253 (−63%)

48.6Ranks 86 of 408, lowest first1,247

Middle 80% of shipsMiddle 50%Ro-pax 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 EU47%
Into the EU47%
At berth in the EU5%

Fuel burned laden

–

Not reported

CO₂ at berth

2,360 t

5.1% 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-pax median is the middle ship of all ro-pax ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

DUNKERQUE SEAWAYS
Ro-pax median

140.0160.0180.0200.0220.0

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

Average speed, kn

DUNKERQUE SEAWAYS
Ro-pax median

15.016.017.018.0

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

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

DUNKERQUE SEAWAYS
Ro-pax median

0.0100200300

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

CO₂ per transport work (pax), g CO₂/pax·nm

DUNKERQUE SEAWAYS
Ro-pax median

0.05001,0001,5002,000

’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	−0.2 kn	+1%	−0%	−9%	+9%	Same speed, fuel per mile flat.
2023→2024	+0.5 kn	+1%	+4%	+0%	+130%	0.5 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023	−2.2 kn	+3%	−10%	−5%	−18%	2.2 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+2.1 kn	+2%	+16%	−7%	+2,545%	2.1 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2020→2021	−0.4 kn	−6%	−9%	+5%	−97%	0.4 kn slower, fuel per mile down 6%; in line with the speed change.
2019→2020	−0.1 kn	−8%	−8%	−4%	+111%	Same speed, fuel per mile down 8%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.1 kn	+5%	+4%	−3%	−71%	Same speed, 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	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 A/S	13,976	43,531	74,913	4,774	15.7	187	–	–
2024	DFDS A/S	15,183	47,286	82,133	5,177	15.9	185	–	–
2023	not published	15,006	46,738	82,113	5,332	15.4	183	–	–
2022	not published	15,400	47,960	86,697	4,926	17.6	178	–	–
2021	not published	16,186	50,411	92,844	6,009	15.5	174	–	–
2020	not published	16,459	51,256	88,357	5,555	15.9	186	–	–
2019	not published	18,527	57,747	91,828	5,733	16.0	202	–	–
2018	not published	18,257	56,951	95,040	5,897	16.1	192	305	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/pax·nm	Ro-pax median	vs Ro-pax	Rank	Freight, g CO₂/t·nm	Ro-pax median	vs Ro-pax	Verifier	Methods
2025	DFDS A/S	1,769	567	+212%	378 of 408	93.7	253	−63%	DNV	B
2024	DFDS A/S	1,625	547	+197%	354 of 404	94.2	233	−60%	DNV	B
2023	not published	706	680	+4%	206 of 386	272	234	+16%	DNV	C
2022	not published	864	626	+38%	241 of 394	275	253	+9%	DNV	C
2021	not published	32.7	815	−96%	23 of 377	4.87	226	−98%	Verifavia	C
2020	not published	1,127	751	+50%	240 of 387	218	217	+0%	Verifavia	C
2019	not published	533	569	−6%	186 of 394	198	223	−11%	Verifavia	C
2018	not published	1,808	729	+148%	293 of 361	–	–	–	Verifavia	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Ro-pax ships are benchmarked on CO₂ per transport work (pax) (TW), in g CO₂/pax·nm, and also per tonne of freight (g CO₂/t·nm freight). 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-pax 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.