Navalyze · Ro-pax · Ship

ROSALIND FRANKLIN

IMO: 8707329
Type: Ro-pax ship
Flag (estimated): Cyprus
Port of registry: Limassol
Technical efficiency: EEXI 40.50 g CO₂/t·nm
Former names: BRETAGNE

ISM company (DoC holder) in 2025: Brittany Ferries BAI SA

Report year

2023 at a glance

From the 2023 THETIS-MRV report.

Fuel kg/nm

144

Ro-pax median 153 kg/nm (−6%)

CO₂ per transport work (pax)

786

g CO₂/pax·nm · Ro-pax median 680 (+16%)

CO₂ per transport work (freight)

53.9

g CO₂/t·nm · Ro-pax median 234 (−77%)

Average speed

15.0 kn

Ro-pax median 16.0 kn (−6%)

Fuel per day at sea

51.7 t/day

Fuel consumed

10,276 t

CO₂ emitted

32,946 t

Distance sailed

71,332 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,768 h

199 days, 54% 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 138 kg/nm · median 150 (−8%)

69.3Ranks 158 of 408, lowest first232

Average speedThis ship 14.2 kn · median 15.8 (−10%)

12.0Faster than 31% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 753 g CO₂/pax·nm · median 567 (+33%)

66.8Ranks 248 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 1,313 g CO₂/t·nm · median 253 (+419%)

48.6Ranks 370 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 ports0%
From the EU45%
Into the EU45%
At berth in the EU11%

Fuel burned laden

–

Not reported

CO₂ at berth

3,535 t

10.7% 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

ROSALIND FRANKLIN
Ro-pax median

120.0140.0160.0180.0

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

Average speed, kn

ROSALIND FRANKLIN
Ro-pax median

12.013.014.015.016.017.0

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

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

ROSALIND FRANKLIN
Ro-pax median

0.05001,0001,500

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

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

ROSALIND FRANKLIN
Ro-pax median

2004006008001,000

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.8 kn	−5%	−10%	−25%	+0%	0.8 kn slower, fuel per mile down 5%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.0 kn	+1%	+1%	−10%	−4%	Same speed, fuel per mile flat.
2022→2023	−0.1 kn	−9%	−10%	+12%	−13%	Same speed, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2021→2022	–	–	–	–	–
2020→2021	–	–	–	–	–
2019→2020	−2.7 kn	+12%	−9%	−51%	+81%	2.7 kn slower, fuel per mile up 12%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.4 kn	+9%	+12%	−10%	+14%	0.4 kn faster, fuel per mile up 9%; in line with the speed change.

Part-year reports are left out of these comparisons. 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
2025part-year	Brittany Ferries BAI SA	287	921	–	0	–	–	–	–
2025	Balearia Eurolineas Maritimas SA	6,590	21,128	47,928	3,375	14.2	138	–	–
2024	Brittany Ferries BAI SA	9,294	29,795	64,008	4,265	15.0	145	–	–
2023	not published	10,276	32,946	71,332	4,768	15.0	144	–	–
2022	not published	10,073	32,295	63,412	4,202	15.1	159	–	–
2021	not published	1,225	3,928	–	0	–	–	–	–
2020	not published	5,179	16,604	29,074	2,373	12.3	178	–	–
2019	not published	9,542	30,591	59,879	3,996	15.0	159	–	–
2018	not published	9,665	30,986	66,232	4,545	14.6	146	–	–

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
2025part-year	Brittany Ferries BAI SA	–	–	–	–	–	–	–	Bureau Veritas	A
2025	Balearia Eurolineas Maritimas SA	753	567	+33%	248 of 408	1,313	253	+419%	RINA	A+B+C
2024	Brittany Ferries BAI SA	751	547	+37%	247 of 404	50.3	233	−78%	Bureau Veritas	A
2023	not published	786	680	+16%	223 of 386	53.9	234	−77%	Bureau Veritas	A
2022	not published	899	626	+44%	247 of 394	61.9	253	−76%	Bureau Veritas	A
2021	not published	–	–	–	–	–	–	–	Bureau Veritas	A
2020	not published	774	751	+3%	198 of 387	920	217	+323%	Bureau Veritas	A
2019	not published	428	569	−25%	159 of 394	578	223	+160%	Bureau Veritas	A
2018	not published	374	729	−49%	128 of 361	495	184	+169%	Bureau Veritas	A

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.