Navalyze · Ro-pax · Ship

DELFT SEAWAYS

IMO: 9293088
Type: Ro-pax ship
Flag (estimated): United Kingdom
Port of registry: Dover
Technical efficiency: EEXI 24.55 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

178

Ro-pax median 153 kg/nm (+16%)

CO₂ per transport work (pax)

694

g CO₂/pax·nm · Ro-pax median 680 (+2%)

CO₂ per transport work (freight)

262

g CO₂/t·nm · Ro-pax median 234 (+12%)

Average speed

15.3 kn

Ro-pax median 16.0 kn (−4%)

Fuel per day at sea

65.3 t/day

Fuel consumed

14,343 t

CO₂ emitted

44,672 t

Distance sailed

80,517 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,271 h

220 days, 60% 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 182 kg/nm · median 150 (+21%)

69.3Ranks 299 of 408, lowest first232

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

12.0Faster than 43% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 1,671 g CO₂/pax·nm · median 567 (+195%)

66.8Ranks 372 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 94.8 g CO₂/t·nm · median 253 (−63%)

48.6Ranks 89 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 ports1%
From the EU47%
Into the EU47%
At berth in the EU5%

Fuel burned laden

–

Not reported

CO₂ at berth

2,059 t

4.6% 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

DELFT SEAWAYS
Ro-pax median

140.0160.0180.0200.0220.0

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

Average speed, kn

DELFT 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

DELFT SEAWAYS
Ro-pax median

0.0100200300400

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

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

DELFT SEAWAYS
Ro-pax median

0.01,0002,0003,000

’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	−0.1 kn	+1%	−1%	−2%	+5%	Same speed, fuel per mile flat.
2023→2024	+0.2 kn	+2%	+4%	−5%	+129%	Same speed, fuel per mile flat.
2022→2023	−2.3 kn	+7%	−7%	−8%	−15%	2.3 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+1.9 kn	−11%	−0%	−2%	+2,237%	1.9 kn faster, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.1 kn	−8%	−8%	+2%	−97%	Same speed, fuel per mile down 8%; better than speed alone explains (hull, engine or trade).
2019→2020	−0.2 kn	−2%	−3%	−6%	−43%	Same speed, fuel per mile flat.
2018→2019	+0.0 kn	+11%	+11%	+0%	+23%	Same speed, fuel per mile up 11%; 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	13,723	42,747	75,283	4,902	15.4	182	–	–
2024	DFDS A/S	13,919	43,351	76,774	4,942	15.5	181	–	–
2023	not published	14,343	44,672	80,517	5,271	15.3	178	–	–
2022	not published	14,563	45,359	87,753	4,986	17.6	166	–	–
2021	not published	16,739	52,133	89,747	5,703	15.7	187	–	–
2020	not published	17,875	55,670	88,200	5,594	15.8	203	–	–
2019	not published	19,403	60,501	94,059	5,877	16.0	206	–	–
2018	not published	17,484	54,558	93,881	5,869	16.0	186	298	–

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	1,671	567	+195%	372 of 408	94.8	253	−63%	DNV	B
2024	DFDS A/S	1,591	547	+191%	351 of 404	89.0	233	−62%	DNV	B
2023	not published	694	680	+2%	202 of 386	262	234	+12%	DNV	C
2022	not published	816	626	+30%	230 of 394	262	253	+4%	DNV	C
2021	not published	34.9	815	−96%	25 of 377	5.16	226	−98%	Verifavia	C
2020	not published	1,237	751	+65%	256 of 387	237	217	+9%	Verifavia	C
2019	not published	2,177	569	+282%	368 of 394	346	223	+56%	Verifavia	C
2018	not published	1,763	729	+142%	290 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.