Navalyze · Ro-pax · Ship

PRINCESS SEAWAYS

IMO: 8502391
Type: Ro-pax ship
Flag (estimated): Denmark
Port of registry: Copenhagen
Technical efficiency: EEXI 29.65 g CO₂/t·nm
Fuel (estimated): Oil blended with biofuel or another alternative fuel

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

Report year

2022 at a glance

From the 2022 THETIS-MRV report.

Fuel kg/nm

148

Ro-pax median 157 kg/nm (−6%)

CO₂ per transport work (pax)

474

g CO₂/pax·nm · Ro-pax median 626 (−24%)

CO₂ per transport work (freight)

149

g CO₂/t·nm · Ro-pax median 253 (−41%)

Average speed

16.1 kn

Ro-pax median 16.0 kn (+1%)

Fuel per day at sea

57.3 t/day

Fuel consumed

13,821 t

CO₂ emitted

43,046 t

Distance sailed

93,462 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,792 h

241 days, 66% 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 156 kg/nm · median 150 (+4%)

69.3Ranks 225 of 408, lowest first232

Average speedThis ship 16.0 kn · median 15.8 (+1%)

12.0Faster than 53% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 186 g CO₂/pax·nm · median 567 (−67%)

66.8Ranks 113 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 370 g CO₂/t·nm · median 253 (+46%)

48.6Ranks 237 of 408, lowest first1,247

Middle 80% of shipsMiddle 50%Ro-pax 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 ports0%
From the EU47%
Into the EU51%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

1,063 t

2.5% 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-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

PRINCESS SEAWAYS
Ro-pax median

140.0150.0160.0170.0180.0

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

Average speed, kn

PRINCESS SEAWAYS
Ro-pax median

15.615.816.016.2

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

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

PRINCESS SEAWAYS
Ro-pax median

100200300400

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

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

PRINCESS SEAWAYS
Ro-pax median

0.01,0002,0003,0004,000

’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	+0.0 kn	+9%	+9%	+4%	+9%	Same speed, fuel per mile up 9%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.1 kn	−2%	−3%	+1%	+1%	Same speed, fuel per mile down 2%; in line with the speed change.
2022→2023	+0.0 kn	−1%	−1%	−5%	−64%	Same speed, fuel per mile flat.
2021→2022	+0.0 kn	+0%	+1%	+12%	−86%	Same speed, fuel per mile flat.
2020→2021	+0.1 kn	−15%	−15%	+41%	+119%	Same speed, fuel per mile down 15%; better than speed alone explains (hull, engine or trade).
2019→2020	+0.1 kn	+10%	+11%	−36%	+255%	Same speed, fuel per mile up 10%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.1 kn	−1%	−2%	−0%	−25%	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
2025Bio blend	DFDS A/S	14,562	44,271	93,299	5,839	16.0	156	–	–
2024	DFDS A/S	12,815	39,914	89,825	5,609	16.0	143	–	–
2023	not published	12,950	39,256	88,670	5,503	16.1	146	–	–
2022	not published	13,821	43,046	93,462	5,792	16.1	148	–	–
2021	not published	12,307	39,348	83,451	5,190	16.1	148	–	–
2020	not published	10,270	32,003	59,256	3,697	16.0	173	–	–
2019	not published	14,538	45,287	92,419	5,799	15.9	157	–	–
2018	not published	14,783	46,052	92,620	5,799	16.0	160	478	–

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
2025Bio blend	DFDS A/S	186	567	−67%	113 of 408	370	253	+46%	DNV	B
2024	DFDS A/S	171	547	−69%	116 of 404	370	233	+59%	DNV	C
2023	not published	170	680	−75%	87 of 386	347	234	+48%	DNV	C
2022	not published	474	626	−24%	168 of 394	149	253	−41%	DNV	C
2021	not published	3,338	815	+310%	355 of 377	185	226	−18%	Verifavia	C
2020	not published	1,527	751	+103%	290 of 387	179	217	−18%	Verifavia	C
2019	not published	431	569	−24%	163 of 394	155	223	−30%	Verifavia	C
2018	not published	578	729	−21%	160 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.