Navalyze · Ro-pax · Ship

DOVER SEAWAYS

IMO: 9318345
Type: Ro-pax ship
Flag (estimated): United Kingdom
Port of registry: Dover
Technical efficiency: EEXI 24.59 g CO₂/t·nm

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

Report year

2021 at a glance

From the 2021 THETIS-MRV report.

Fuel kg/nm

179

Ro-pax median 155 kg/nm (+16%)

CO₂ per transport work (pax)

33.4

g CO₂/pax·nm · Ro-pax median 815 (−96%)

CO₂ per transport work (freight)

5.00

g CO₂/t·nm · Ro-pax median 226 (−98%)

Average speed

15.3 kn

Ro-pax median 16.2 kn (−6%)

Fuel per day at sea

65.9 t/day

Fuel consumed

16,294 t

CO₂ emitted

50,742 t

Distance sailed

90,900 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,937 h

247 days, 68% 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 178 kg/nm · median 150 (+19%)

69.3Ranks 284 of 408, lowest first232

Average speedThis ship 15.4 kn · median 15.8 (−3%)

12.0Faster than 44% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 1,691 g CO₂/pax·nm · median 567 (+199%)

66.8Ranks 376 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 92.2 g CO₂/t·nm · median 253 (−64%)

48.6Ranks 83 of 408, lowest first1,247

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

Where the emissions happen, 2021

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 EU46%
At berth in the EU5%

Fuel burned laden

–

Not reported

CO₂ at berth

2,522 t

5.0% 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

DOVER SEAWAYS
Ro-pax median

140.0160.0180.0200.0220.0

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

Average speed, kn

DOVER 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

DOVER SEAWAYS
Ro-pax median

0.0100200300

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

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

DOVER 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	−3%	−4%	−1%	+3%	Same speed, fuel per mile down 3%; in line with the speed change.
2023→2024	+0.1 kn	−2%	−1%	−7%	+131%	Same speed, fuel per mile flat.
2022→2023	−2.1 kn	+8%	−5%	−3%	−13%	2.1 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+2.3 kn	−4%	+10%	−6%	+2,362%	2.3 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.6 kn	−8%	−11%	+2%	−97%	0.6 kn slower, fuel per mile down 8%; in line with the speed change.
2019→2020	−0.3 kn	−9%	−11%	−7%	+88%	Same speed, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.0 kn	+8%	+8%	−0%	−68%	Same speed, fuel per mile up 8%; 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	13,660	42,577	76,691	4,978	15.4	178	–	–
2024	DFDS A/S	14,210	44,782	77,798	4,989	15.6	183	–	–
2023	not published	15,522	48,344	83,519	5,392	15.5	186	–	–
2022	not published	14,721	45,851	85,888	4,880	17.6	171	–	–
2021	not published	16,294	50,742	90,900	5,937	15.3	179	–	–
2020	not published	17,291	53,853	88,776	5,587	15.9	195	–	–
2019	not published	20,484	63,835	95,652	5,918	16.2	214	–	–
2018	not published	18,953	59,132	95,831	5,917	16.2	198	314	–

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	1,691	567	+199%	376 of 408	92.2	253	−64%	DNV	B
2024	DFDS A/S	1,648	547	+201%	356 of 404	98.7	233	−58%	DNV	C
2023	not published	712	680	+5%	208 of 386	282	234	+21%	DNV	B+C
2022	not published	821	626	+31%	232 of 394	278	253	+10%	DNV	B+C
2021	not published	33.4	815	−96%	24 of 377	5.00	226	−98%	Verifavia	C
2020	not published	1,147	751	+53%	244 of 387	226	217	+4%	Verifavia	C
2019	not published	609	569	+7%	210 of 394	250	223	+12%	Verifavia	C
2018	not published	1,882	729	+158%	296 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.