Navalyze · Ro-ro · Ship

BRITANNIA SEAWAYS

IMO: 9153032
Type: Ro-ro ship
Average cargo carried: 2,725 t
Flag (estimated): Denmark
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

2022 at a glance

From the 2022 THETIS-MRV report. Carries about 2,809 t of cargo on average.

Fuel kg/nm

149

Ro-ro median 110 kg/nm (+35%)

CO₂ per transport work (cargo)

165

g CO₂/t·nm · Ro-ro median 90.6 (+82%)

Average speed

16.3 kn

Ro-ro median 14.6 kn (+12%)

Fuel per day at sea

58.0 t/day

Fuel consumed

9,701 t

CO₂ emitted

30,258 t

Distance sailed

65,319 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,011 h

167 days, 46% 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 kg/nmThis ship 163 kg/nm · median 105 (+55%)

56.6Ranks 232 of 235, lowest first145

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 g CO₂/t·nm · median 95.2 (+97%)

47.4Ranks 180 of 235, lowest first297

Middle 80% of shipsMiddle 50%Ro-ro 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 ports2%
From the EU48%
Into the EU47%
At berth in the EU3%

Fuel burned laden

–

Not reported

CO₂ at berth

941 t

3.1% 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-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 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	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	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	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	2,995	9,406	18,425	1,242	14.8	163	187	–
2024	DFDS A/S	10,241	31,959	80,759	4,992	16.2	127	133	–
2023	not published	10,247	31,982	78,767	5,025	15.7	130	153	–
2022	not published	9,701	30,258	65,319	4,011	16.3	149	165	–
2021	not published	10,808	33,727	75,589	4,913	15.4	143	159	–
2020	not published	5,934	18,567	43,991	3,045	14.4	135	185	–
2019	not published	8,050	25,170	56,389	3,857	14.6	143	129	–
2018	not published	9,254	28,927	67,441	4,560	14.8	137	129	–

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	95.2	+97%	180 of 235	DNV	B
2024	DFDS A/S	133	97.5	+36%	138 of 220	DNV	C
2023	not published	153	109	+41%	146 of 221	DNV	C
2022	not published	165	90.6	+82%	171 of 223	DNV	C
2021	not published	159	104	+54%	155 of 219	Verifavia	C
2020	not published	185	103	+80%	176 of 238	Verifavia	C
2019	not published	129	90.9	+41%	183 of 271	Verifavia	C
2018	not published	129	91.0	+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.