Navalyze · Ro-pax · Ship

JUAN J. SISTER

IMO: 9039391
Type: Ro-pax ship
Flag (estimated): Spain
Port of registry: Las Palmas De Gran Canaria
Technical efficiency: EIV 16.65 g CO₂/t·nm

ISM company (DoC holder) in 2025: COMPANIA TRASMEDITERRANEA, SA

Report year

2022 at a glance

From the 2022 THETIS-MRV report.

Fuel kg/nm

121

Ro-pax median 157 kg/nm (−23%)

CO₂ per transport work (pax)

73.1

g CO₂/pax·nm · Ro-pax median 626 (−88%)

CO₂ per transport work (freight)

253

g CO₂/t·nm · Ro-pax median 253 (−0%)

Average speed

13.1 kn

Ro-pax median 16.0 kn (−18%)

Fuel per day at sea

37.9 t/day

Fuel consumed

5,692 t

CO₂ emitted

17,825 t

Distance sailed

47,247 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,608 h

150 days, 41% 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 104 kg/nm · median 150 (−31%)

69.3Ranks 100 of 408, lowest first232

Average speedThis ship 11.2 kn · median 15.8 (−29%)

12.0Faster than 7% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 66.1 g CO₂/pax·nm · median 567 (−88%)

66.8Ranks 40 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 338 g CO₂/t·nm · median 253 (+33%)

48.6Ranks 227 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 ports25%
From the EU31%
Into the EU31%
At berth in the EU14%

Fuel burned laden

–

Not reported

CO₂ at berth

2,424 t

13.6% 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

JUAN J. SISTER
Ro-pax median

100.0120.0140.0160.0

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

Average speed, kn

JUAN J. SISTER
Ro-pax median

10.012.014.016.018.0

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

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

JUAN J. SISTER
Ro-pax median

0.0200400600

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

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

JUAN J. SISTER
Ro-pax median

0.05,00010,00015,000

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−3.0 kn	−9%	−28%	−30%	−33%	3.0 kn slower, fuel per mile down 9%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+1.4 kn	+7%	+18%	+8%	+150%	1.4 kn faster, fuel per mile up 7%; better than speed alone explains (hull, engine or trade).
2022→2023	−0.3 kn	−11%	−13%	+20%	−46%	Same speed, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.1 kn	−13%	−14%	+2%	−99%	Same speed, fuel per mile down 13%; better than speed alone explains (hull, engine or trade).
2020→2021	−2.0 kn	+23%	+7%	−16%	–	2.0 kn slower, fuel per mile up 23%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+1.2 kn	−15%	−7%	−15%	–	1.2 kn faster, fuel per mile down 15%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.6 kn	+5%	+1%	−11%	+329,806%	0.6 kn slower, fuel per mile up 5%; 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	COMPANIA TRASMEDITERRANEA, SA	4,470	13,952	42,864	3,818	11.2	104	–	–
2024	COMPANIA TRASMEDITERRANEA, SA	7,027	21,979	61,400	4,311	14.2	115	–	–
2023	not published	6,105	19,080	56,863	4,435	12.8	107	–	–
2022	not published	5,692	17,825	47,247	3,608	13.1	121	–	–
2021	not published	6,420	20,094	46,145	3,483	13.2	139	–	–
2020	not published	6,230	19,467	55,127	3,624	15.2	113	–	–
2019	not published	8,610	26,940	64,895	4,639	14.0	133	–	–
2018	not published	9,196	28,715	72,971	5,014	14.6	126	–	–

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	COMPANIA TRASMEDITERRANEA, SA	66.1	567	−88%	40 of 408	338	253	+33%	Lloyd's Register	B
2024	COMPANIA TRASMEDITERRANEA, SA	99.0	547	−82%	74 of 404	349	233	+50%	Lloyd's Register	B
2023	not published	39.6	680	−94%	20 of 386	256	234	+9%	Lloyd's Register	A+B
2022	not published	73.1	626	−88%	44 of 394	253	253	−0%	Lloyd's Register	A+B
2021	not published	4,948	815	+507%	370 of 377	447	226	+98%	Lloyd's Register	A+B
2020	not published	–	–	–	–	–	–	–	Lloyd's Register	A+B
2019	not published	12,635	569	+2,121%	392 of 394	424	223	+91%	Lloyd's Register	–
2018	not published	3.83	729	−99%	26 of 361	1.84	184	−99%	Lloyd's Register	–

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.