Navalyze · Ro-pax · Ship

VOLCAN DE TAUCE

IMO: 9081588
Type: Ro-pax ship
Flag (estimated): Spain
Port of registry: Santa Cruz De Tenerife
Technical efficiency: EIV 23.81 g CO₂/t·nm

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

Report year

2021 at a glance

From the 2021 THETIS-MRV report.

Fuel kg/nm

96.3

Ro-pax median 155 kg/nm (−38%)

CO₂ per transport work (pax)

39.1

g CO₂/pax·nm · Ro-pax median 815 (−95%)

CO₂ per transport work (freight)

379

g CO₂/t·nm · Ro-pax median 226 (+68%)

Average speed

12.1 kn

Ro-pax median 16.2 kn (−25%)

Fuel per day at sea

28.1 t/day

Fuel consumed

2,627 t

CO₂ emitted

8,239 t

Distance sailed

27,277 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,247 h

94 days, 26% of the year

Within the ro-pax fleet, 2024

Set against all 404 ro-pax ships with a full-year 2024 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 73.1 kg/nm · median 151 (−51%)

73.1Ranks 41 of 404, lowest first237

Average speedThis ship 13.1 kn · median 15.7 (−17%)

11.7Faster than 21% of ro-pax ships22.4

CO₂ per transport work (pax)This ship 583 g CO₂/pax·nm · median 547 (+7%)

58.4Ranks 210 of 404, lowest first1,957

CO₂ per transport work (freight)This ship 332 g CO₂/t·nm · median 233 (+42%)

30.8Ranks 238 of 404, lowest first1,069

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

Where the emissions happen, 2021

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 EU43%
Into the EU43%
At berth in the EU14%

Fuel burned laden

–

Not reported

CO₂ at berth

1,115 t

13.5% 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 TAUCE
Ro-pax median

50.075.0100.0125.0150.0175.0

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

Average speed, kn

VOLCAN DE TAUCE
Ro-pax median

12.014.016.018.0

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

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

VOLCAN DE TAUCE
Ro-pax median

0.0200400600

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

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

VOLCAN DE TAUCE
Ro-pax median

0.02,0004,0006,000

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2023→2024	−0.1 kn	−9%	−9%	+19%	+32%	Same speed, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.3 kn	−13%	−11%	+69%	−57%	Same speed, fuel per mile down 13%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.8 kn	−4%	+2%	+0%	+2,559%	0.8 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.8 kn	−4%	−10%	+78%	−87%	0.8 kn slower, fuel per mile down 4%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−1.5 kn	+31%	+18%	−77%	−28%	1.5 kn slower, fuel per mile up 31%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.4 kn	−11%	−13%	+24%	−93%	0.4 kn slower, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).

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	NAVIERA ARMAS, S.A.	101	322	55	10	5.4	1,818	–	–
2024	NAVIERA ARMAS, S.A.	4,016	12,557	54,972	4,184	13.1	73.1	–	–
2023	not published	3,696	11,563	46,217	3,494	13.2	80.0	–	–
2022	not published	2,528	7,937	27,413	2,123	12.9	92.2	–	–
2021	not published	2,627	8,239	27,277	2,247	12.1	96.3	–	–
2020	not published	1,534	4,824	15,334	1,185	12.9	100	–	–
2019	not published	5,125	16,028	67,257	4,670	14.4	76.2	–	–
2018	not published	4,629	14,497	54,356	3,679	14.8	85.2	–	–

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	NAVIERA ARMAS, S.A.	–	–	–	–	–	–	–	Bureau Veritas	B
2024	NAVIERA ARMAS, S.A.	583	547	+7%	210 of 404	332	233	+42%	Bureau Veritas	B
2023	not published	442	680	−35%	140 of 386	317	234	+36%	Bureau Veritas	A+B
2022	not published	1,040	626	+66%	273 of 394	457	253	+81%	Bureau Veritas	A+B
2021	not published	39.1	815	−95%	28 of 377	379	226	+68%	Bureau Veritas	A+B
2020	not published	290	751	−61%	116 of 387	348	217	+60%	Bureau Veritas	A+B
2019	not published	404	569	−29%	152 of 394	404	223	+81%	Bureau Veritas	A+B
2018	not published	5,518	729	+657%	347 of 361	586	184	+219%	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.