Navalyze · Ro-pax · Ship

VOLCAN DE TIRAJANA

IMO: 9294226
Type: Ro-pax ship
Flag (estimated): Spain
Port of registry: Santa Cruz De Tenerife
Technical efficiency: EIV 68.05 g CO₂/t·nm

ISM company (DoC holder) in 2025: NAVIERA ARMAS, S.A.

Report year

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm

158

Ro-pax median 158 kg/nm (+0%)

CO₂ per transport work (pax)

4,014

g CO₂/pax·nm · Ro-pax median 729 (+451%)

CO₂ per transport work (freight)

5,783

g CO₂/t·nm · Ro-pax median 184 (+3,042%)

Average speed

22.6 kn

Ro-pax median 16.1 kn (+40%)

Fuel per day at sea

86.1 t/day

Fuel consumed

7,351 t

CO₂ emitted

23,566 t

Distance sailed

46,398 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,049 h

85 days, 23% 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 166 kg/nm · median 150 (+11%)

69.3Ranks 260 of 408, lowest first232

Average speedThis ship 26.0 kn · median 15.8 (+65%)

12.0Faster than 95% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 915 g CO₂/pax·nm · median 567 (+61%)

66.8Ranks 279 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 3,181 g CO₂/t·nm · median 253 (+1,156%)

48.6Ranks 390 of 408, lowest first1,247

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

Where the emissions happen, 2018

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 ports95%
From the EU0%
Into the EU0%
At berth in the EU5%

Fuel burned laden

–

Not reported

CO₂ at berth

1,103 t

4.7% 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

VOLCAN DE TIRAJANA
Ro-pax median

150.0155.0160.0165.0170.0

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

Average speed, kn

VOLCAN DE TIRAJANA
Ro-pax median

15.020.025.030.0

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

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

VOLCAN DE TIRAJANA
Ro-pax median

0.02,0004,0006,000

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

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

VOLCAN DE TIRAJANA
Ro-pax median

0.01,0002,0003,0004,0005,000

’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	+2.9 kn	+1%	+14%	+67%	−15%	2.9 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2023→2024	−1.2 kn	+1%	−4%	+7%	−5%	1.2 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.3 kn	−1%	−2%	−2%	−8%	0.3 kn slower, fuel per mile flat.
2021→2022	−0.6 kn	+3%	+1%	+5%	+2%	0.6 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.3 kn	+2%	+3%	+12%	+6%	0.3 kn faster, fuel per mile flat.
2019→2020	+0.6 kn	+0%	+2%	−31%	+1%	0.6 kn faster, fuel per mile flat.
2018→2019	+1.7 kn	−2%	+5%	+19%	−72%	1.7 kn faster, fuel per mile flat; better than speed alone explains (hull, engine 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	NAVIERA ARMAS, S.A.	13,289	42,603	80,005	3,071	26.0	166	–	–
2024	NAVIERA ARMAS, S.A.	7,859	25,196	47,967	2,080	23.1	164	–	–
2023	not published	7,221	23,152	44,716	1,840	24.3	162	–	–
2022	not published	7,449	23,882	45,503	1,853	24.6	164	–	–
2021	not published	6,849	21,958	43,232	1,716	25.2	158	–	–
2020	not published	5,983	19,181	38,452	1,547	24.9	156	–	–
2019	not published	8,610	27,603	55,392	2,282	24.3	155	–	–
2018	not published	7,351	23,566	46,398	2,049	22.6	158	–	–

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	NAVIERA ARMAS, S.A.	915	567	+61%	279 of 408	3,181	253	+1,156%	Bureau Veritas	B
2024	NAVIERA ARMAS, S.A.	1,072	547	+96%	305 of 404	706	233	+203%	Bureau Veritas	B
2023	not published	1,130	680	+66%	306 of 386	663	234	+183%	Bureau Veritas	A+B
2022	not published	1,233	626	+97%	319 of 394	693	253	+174%	Bureau Veritas	A+B
2021	not published	1,214	815	+49%	274 of 377	696	226	+208%	Bureau Veritas	A+B
2020	not published	1,147	751	+53%	243 of 387	781	217	+259%	Bureau Veritas	A+B
2019	not published	1,137	569	+100%	308 of 394	1,137	223	+411%	Bureau Veritas	A+B
2018	not published	4,014	729	+451%	338 of 361	5,783	184	+3,042%	Bureau Veritas	A+B

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.