Navalyze · Ro-pax · Ship

ATHARA

IMO: 9263655
Type: Ro-pax ship
Flag (estimated): Italy
Port of registry: Cagliari
Technical efficiency: EEXI 24.95 g CO₂/t·nm

ISM company (DoC holder) in 2025: Compagnia Italiana Di Navigazione

Report year

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm

232

Ro-pax median 158 kg/nm (+46%)

CO₂ per transport work (pax)

1,150

g CO₂/pax·nm · Ro-pax median 729 (+58%)

CO₂ per transport work (freight)

132

g CO₂/t·nm · Ro-pax median 184 (−28%)

Average speed

18.2 kn

Ro-pax median 16.1 kn (+13%)

Fuel per day at sea

101.5 t/day

Fuel consumed

16,541 t

CO₂ emitted

51,655 t

Distance sailed

71,352 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,911 h

163 days, 45% 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 237 kg/nm · median 150 (+58%)

69.3Ranks 374 of 408, lowest first232

Average speedThis ship 17.1 kn · median 15.8 (+8%)

12.0Faster than 63% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 1,124 g CO₂/pax·nm · median 567 (+98%)

66.8Ranks 322 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 73.9 g CO₂/t·nm · median 253 (−71%)

48.6Ranks 64 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 ports89%
From the EU0%
Into the EU0%
At berth in the EU11%

Fuel burned laden

–

Not reported

CO₂ at berth

5,832 t

11.3% 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

ATHARA
Ro-pax median

150.0200.0250.0300.0

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

Average speed, kn

ATHARA
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

ATHARA
Ro-pax median

0.0100200300

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

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

ATHARA
Ro-pax median

0.05001,0001,5002,000

’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	−0.6 kn	−8%	−11%	+11%	+13%	0.6 kn slower, fuel per mile down 8%; in line with the speed change.
2023→2024	−0.8 kn	+8%	+3%	−6%	−10%	0.8 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.5 kn	−4%	−7%	−19%	+2%	0.5 kn slower, fuel per mile down 4%; in line with the speed change.
2021→2022	−1.3 kn	−1%	−7%	+70%	+8%	1.3 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+2.1 kn	+9%	+21%	−34%	−39%	2.1 kn faster, fuel per mile up 9%; better than speed alone explains (hull, engine or trade).
2019→2020	+1.0 kn	+4%	+10%	+9%	+57,225%	1.0 kn faster, fuel per mile up 4%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.0 kn	−3%	−8%	−7%	−100%	1.0 kn slower, fuel per mile down 3%; 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	Compagnia Italiana Di Navigazione	16,452	51,901	69,445	4,053	17.1	237	–	–
2024	Compagnia Italiana Di Navigazione	16,147	50,462	62,534	3,538	17.7	258	–	–
2023	not published	15,830	49,467	66,346	3,585	18.5	239	–	–
2022	not published	20,473	63,924	81,991	4,308	19.0	250	–	–
2021	not published	12,197	38,091	48,138	2,375	20.3	253	–	–
2020	not published	16,894	52,774	72,443	3,971	18.2	233	–	–
2019	not published	14,970	46,769	66,544	3,862	17.2	225	–	–
2018	not published	16,541	51,655	71,352	3,911	18.2	232	–	–

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	Compagnia Italiana Di Navigazione	1,124	567	+98%	322 of 408	73.9	253	−71%	RINA	A
2024	Compagnia Italiana Di Navigazione	996	547	+82%	291 of 404	87.1	233	−63%	RINA	A
2023	not published	1,111	680	+63%	303 of 386	99.6	234	−57%	RINA	–
2022	not published	1,092	626	+74%	290 of 394	95.0	253	−62%	RINA	A
2021	not published	1,010	815	+24%	227 of 377	94.1	226	−58%	RINA	A
2020	not published	1,668	751	+122%	307 of 387	140	217	−36%	RINA	A
2019	not published	2.91	569	−99%	22 of 394	0.36	223	−100%	RINA	A
2018	not published	1,150	729	+58%	240 of 361	132	184	−28%	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.