Navalyze · Ro-pax · Ship

TENACIA

IMO: 9350707
Type: Ro-pax ship
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

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

171.5 kg/nm

Ro-pax median 150.2 kg/nm (+14%)

CO₂ per transport work (pax)

2,549

g CO₂/pax·nm · Ro-pax median 567 (+350%)

CO₂ per transport work (freight)

0.14

g CO₂/t·nm · Ro-pax median 253 (−100%)

Average speed

19.7 kn

Ro-pax median 15.8 kn (+25%)

Fuel per day at sea

81.2 t/day

Fuel consumed

7,769 t

CO₂ emitted

24,563 t

24,944 t CO₂eq incl. CH₄ and N₂O

Distance sailed

45,299 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,297 h

96 days, 26% 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 per mileThis ship 171.5 kg/nm · median 150.2 (+14%)

69.3Ranks 272 of 408, lowest first232.4

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 2,549.00 g CO₂/pax·nm · median 566.51 (+350%)

66.76Ranks 392 of 408, lowest first1,568.87

CO₂ per transport work (freight)This ship 0.14 g CO₂/t·nm · median 253.18 (−100%)

48.59Ranks 12 of 408, lowest first1,247.19

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

Where the emissions happen, 2025

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 ports84%
From the EU0%
Into the EU0%
At berth in the EU16%

100% of this ship's CO₂ falls under the EU ETS (24,563 t).

Fuel burned laden

–

Not reported

CO₂ at berth

15.8%

Alongside in EU ports

Methane (CH₄)

0.4 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift from CH₄ and N₂O, counted in full from 2026

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 per mile, 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	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Grandi Navi Veloci Spa	7,769	24,563	45,299	2,297	19.7	171.5	–	–
2024	Grandi Navi Veloci Spa	6,776	21,172	38,495	2,032	18.9	176.0	–	–
2023	not published	13,838	43,227	83,911	4,533	18.5	164.9	–	–
2022	not published	14,739	46,005	81,926	4,058	20.2	179.9	–	–
2021	not published	18,523	57,778	110,381	5,343	20.7	167.8	–	–
2020	not published	13,860	43,236	88,100	4,632	19.0	157.3	–	–
2019	not published	14,757	46,036	88,933	4,863	18.3	165.9	–	–
2018	not published	12,270	38,289	78,179	4,411	17.7	156.9	–	–

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	2,549.00	566.51	+350%	392 of 408	0.14	253.18	−100%	RINA	A+B
2024	Grandi Navi Veloci Spa	0.47	546.68	−100%	3 of 404	0.47	232.85	−100%	RINA	A+B
2023	not published	2,259.67	680.04	+232%	362 of 386	134.52	233.94	−42%	RINA	A+B
2022	not published	2,688.29	626.32	+329%	380 of 394	209.42	252.90	−17%	RINA	A+B
2021	not published	23.95	815.19	−97%	18 of 377	210.50	226.00	−7%	RINA	A
2020	not published	17.19	750.91	−98%	29 of 387	164.45	217.49	−24%	RINA	A
2019	not published	3.91	569.03	−99%	28 of 394	0.29	222.56	−100%	RINA	A
2018	not published	3.80	728.92	−99%	25 of 361	0.31	184.05	−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.