Navalyze · Ro-pax · Ship

TENACIA

IMO: 9350707
Type: Ro-pax ship
Flag (estimated): Italy
Port of registry: Palermo
Technical efficiency: EIV 38.90 g CO₂/t·nm

ISM company (DoC holder) in 2025: Grandi Navi Veloci Spa

Report year

2022 at a glance

From the 2022 THETIS-MRV report.

Fuel kg/nm

180

Ro-pax median 157 kg/nm (+14%)

CO₂ per transport work (pax)

2,688

g CO₂/pax·nm · Ro-pax median 626 (+329%)

CO₂ per transport work (freight)

209

g CO₂/t·nm · Ro-pax median 253 (−17%)

Average speed

20.2 kn

Ro-pax median 16.0 kn (+26%)

Fuel per day at sea

87.2 t/day

Fuel consumed

14,739 t

CO₂ emitted

46,005 t

Distance sailed

81,926 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,058 h

169 days, 46% 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 172 kg/nm · median 150 (+14%)

69.3Ranks 272 of 408, lowest first232

Average speedThis ship 19.7 kn · median 15.8 (+25%)

12.0Faster than 83% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 2,549 g CO₂/pax·nm · median 567 (+350%)

66.8Ranks 392 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 0.14 g CO₂/t·nm · median 253 (−100%)

48.6Ranks 12 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 ports89%
From the EU0%
Into the EU0%
At berth in the EU11%

Fuel burned laden

–

Not reported

CO₂ at berth

5,070 t

11.0% 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

TENACIA
Ro-pax median

150.0160.0170.0180.0

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

Average speed, kn

TENACIA
Ro-pax median

14.016.018.020.022.0

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

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

TENACIA
Ro-pax median

0.0100200300

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

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

TENACIA
Ro-pax median

0.01,0002,0003,000

’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	+0.8 kn	−3%	+2%	+18%	+542,240%	0.8 kn faster, fuel per mile down 3%; better than speed alone explains (hull, engine or trade).
2023→2024	+0.4 kn	+7%	+9%	−54%	−100%	0.4 kn faster, fuel per mile up 7%; in line with the speed change.
2022→2023	−1.7 kn	−8%	−16%	+2%	−16%	1.7 kn slower, fuel per mile down 8%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.5 kn	+7%	+5%	−26%	+11,125%	0.5 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+1.7 kn	+7%	+16%	+25%	+39%	1.7 kn faster, fuel per mile up 7%; better than speed alone explains (hull, engine or trade).
2019→2020	+0.7 kn	−5%	−1%	−1%	+340%	0.7 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.6 kn	+6%	+9%	+14%	+3%	0.6 kn faster, fuel per mile up 6%; in line with the speed change.

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	Grandi Navi Veloci Spa	7,769	24,563	45,299	2,297	19.7	172	–	–
2024	Grandi Navi Veloci Spa	6,776	21,172	38,495	2,032	18.9	176	–	–
2023	not published	13,838	43,227	83,911	4,533	18.5	165	–	–
2022	not published	14,739	46,005	81,926	4,058	20.2	180	–	–
2021	not published	18,523	57,778	110,381	5,343	20.7	168	–	–
2020	not published	13,860	43,236	88,100	4,632	19.0	157	–	–
2019	not published	14,757	46,036	88,933	4,863	18.3	166	–	–
2018	not published	12,270	38,289	78,179	4,411	17.7	157	–	–

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	Grandi Navi Veloci Spa	2,549	567	+350%	392 of 408	0.14	253	−100%	RINA	A+B
2024	Grandi Navi Veloci Spa	0.47	547	−100%	3 of 404	0.47	233	−100%	RINA	A+B
2023	not published	2,260	680	+232%	362 of 386	135	234	−42%	RINA	A+B
2022	not published	2,688	626	+329%	380 of 394	209	253	−17%	RINA	A+B
2021	not published	24.0	815	−97%	18 of 377	211	226	−7%	RINA	A
2020	not published	17.2	751	−98%	29 of 387	164	217	−24%	RINA	A
2019	not published	3.91	569	−99%	28 of 394	0.29	223	−100%	RINA	A
2018	not published	3.80	729	−99%	25 of 361	0.31	184	−100%	RINA	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.