Navalyze · Ro-ro · Ship

BRITANNIA SEAWAYS

IMO: 9153032
Type: Ro-ro ship
Average cargo carried: 2,725 t
Port of registry: KØBenhavn
Technical efficiency: EEXI 15.75 g CO₂/t·nm

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

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 2,725 t of cargo on average.

Fuel per mile

162.6 kg/nm

Ro-ro median 104.6 kg/nm (+55%)

CO₂ per transport work (cargo)

187

g CO₂/t·nm · Ro-ro median 95.19 (+97%)

Average speed

14.8 kn

Ro-ro median 14.4 kn (+3%)

Fuel per day at sea

57.9 t/day

Fuel consumed

2,995 t

CO₂ emitted

9,406 t

9,554 t CO₂eq incl. CH₄ and N₂O

Distance sailed

18,425 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,242 h

52 days, 14% 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 per mileThis ship 162.6 kg/nm · median 104.6 (+55%)

56.6Ranks 232 of 235, lowest first145.3

Average speedThis ship 14.8 kn · median 14.4 (+3%)

10.9Faster than 58% of ro-ro ships17.0

CO₂ per transport work (cargo)This ship 187.35 g CO₂/t·nm · median 95.19 (+97%)

47.35Ranks 180 of 235, lowest first297.27

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

Where the emissions happen, 2025

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 ports45%
From the EU26%
Into the EU26%
At berth in the EU3%

74% of this ship's CO₂ falls under the EU ETS (6,961 t).

Fuel burned laden

–

Not reported

CO₂ at berth

3.2%

Alongside in EU ports

Methane (CH₄)

0.2 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift from CH₄ and N₂O, counted in full from 2026

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 per mile, kg/nm

BRITANNIA SEAWAYS
Ro-ro median

100.0120.0140.0160.0180.0

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

Average speed, kn

BRITANNIA SEAWAYS
Ro-ro median

14.014.515.015.516.016.5

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

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

BRITANNIA SEAWAYS
Ro-ro median

75.0100125150175200

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−1.4 kn	+28%	+18%	−77%	+41%	1.4 kn slower, fuel per mile up 28%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.5 kn	−3%	+1%	+3%	−13%	0.5 kn faster, fuel per mile down 3%; better than speed alone explains (hull, engine or trade).
2022→2023	−0.6 kn	−12%	−16%	+21%	−7%	0.6 kn slower, fuel per mile down 12%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.9 kn	+4%	+10%	−14%	+4%	0.9 kn faster, fuel per mile up 4%; better than speed alone explains (hull, engine or trade).
2020→2021	+1.0 kn	+6%	+13%	+72%	−14%	1.0 kn faster, fuel per mile up 6%; better than speed alone explains (hull, engine or trade).
2019→2020	−0.2 kn	−6%	−7%	−22%	+44%	Same speed, fuel per mile down 6%; in line with the speed change.
2018→2019	−0.2 kn	+4%	+3%	−16%	−0%	Same speed, fuel per mile up 4%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	DFDS A/S	2,995	9,406	18,425	1,242	14.8	162.6	187.35	–
2024	DFDS A/S	10,241	31,959	80,759	4,992	16.2	126.8	132.97	–
2023	not published	10,247	31,982	78,767	5,025	15.7	130.1	153.32	–
2022	not published	9,701	30,258	65,319	4,011	16.3	148.5	164.91	–
2021	not published	10,808	33,727	75,589	4,913	15.4	143.0	159.09	–
2020	not published	5,934	18,567	43,991	3,045	14.4	134.9	184.54	–
2019	not published	8,050	25,170	56,389	3,857	14.6	142.8	128.52	–
2018	not published	9,254	28,927	67,441	4,560	14.8	137.2	128.99	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2025	DFDS A/S	187.35	95.19	+97%	180 of 235	DNV	B
2024	DFDS A/S	132.97	97.53	+36%	138 of 220	DNV	C
2023	not published	153.32	108.62	+41%	146 of 221	DNV	C
2022	not published	164.91	90.62	+82%	171 of 223	DNV	C
2021	not published	159.09	103.64	+54%	155 of 219	Verifavia	C
2020	not published	184.54	102.77	+80%	176 of 238	Verifavia	C
2019	not published	128.52	90.89	+41%	183 of 271	Verifavia	C
2018	not published	128.99	91.03	+42%	171 of 260	Verifavia	C

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.