Navalyze · Ro-pax · Ship

AF MIA

IMO: 9144811
Type: Ro-pax ship
Flag (estimated): Italy
Port of registry: Napoli
Technical efficiency: EIV 25.90 g CO₂/t·nm
Former names: CRUISE SMERALDA

ISM company (DoC holder) in 2025: Adria Ferries SpA

Report year

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm

200

Ro-pax median 158 kg/nm (+26%)

CO₂ per transport work (pax)

713

g CO₂/pax·nm · Ro-pax median 729 (−2%)

CO₂ per transport work (freight)

170

g CO₂/t·nm · Ro-pax median 184 (−8%)

Average speed

20.2 kn

Ro-pax median 16.1 kn (+25%)

Fuel per day at sea

97.2 t/day

Fuel consumed

18,406 t

CO₂ emitted

58,068 t

Distance sailed

91,979 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,546 h

189 days, 52% 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 176 kg/nm · median 150 (+17%)

69.3Ranks 279 of 408, lowest first232

Average speedThis ship 18.7 kn · median 15.8 (+18%)

12.0Faster than 75% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 27.6 g CO₂/pax·nm · median 567 (−95%)

66.8Ranks 6 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 245 g CO₂/t·nm · median 253 (−3%)

48.6Ranks 198 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 ports39%
From the EU28%
Into the EU27%
At berth in the EU6%

Fuel burned laden

–

Not reported

CO₂ at berth

3,310 t

5.7% 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

AF MIA
Ro-pax median

140.0160.0180.0200.0220.0

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

Average speed, kn

AF MIA
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

AF MIA
Ro-pax median

0.0100200300

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

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

AF MIA
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	−0.4 kn	−4%	−6%	+3%	−8%	0.4 kn slower, fuel per mile down 4%; in line with the speed change.
2023→2024	+3.5 kn	+3%	+26%	+75%	−99%	3.5 kn faster, fuel per mile up 3%; better than speed alone explains (hull, engine or trade).
2022→2023	−1.7 kn	−8%	−17%	−48%	+182%	1.7 kn slower, fuel per mile down 8%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−1.8 kn	+4%	−6%	−1%	−38%	1.8 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−1.1 kn	−6%	−11%	+80%	−36%	1.1 kn slower, fuel per mile down 6%; in line with the speed change.
2019→2020	+0.3 kn	−3%	−1%	+51%	+48%	0.3 kn faster, fuel per mile down 3%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.3 kn	+2%	−0%	−58%	+113%	0.3 kn slower, fuel per mile flat.

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	Adria Ferries SpA	17,258	53,722	97,975	5,244	18.7	176	–	–
2024	Adria Ferries SpA	17,497	54,593	95,040	4,973	19.1	184	–	–
2023	not published	9,655	30,229	54,188	3,469	15.6	178	–	–
2022	not published	20,024	62,449	103,646	5,980	17.3	193	–	–
2021	not published	19,512	60,880	104,772	5,479	19.1	186	–	–
2020	not published	11,527	35,978	58,358	2,892	20.2	198	–	–
2019	not published	7,862	24,827	38,644	1,946	19.9	203	–	–
2018	not published	18,406	58,068	91,979	4,546	20.2	200	–	–

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	Adria Ferries SpA	27.6	567	−95%	6 of 408	245	253	−3%	RINA	A
2024	Adria Ferries SpA	30.0	547	−95%	31 of 404	48.0	233	−79%	RINA	A
2023	not published	2,528	680	+272%	368 of 386	82.1	234	−65%	RINA	–
2022	not published	896	626	+43%	245 of 394	111	253	−56%	RINA	A
2021	not published	1,443	815	+77%	304 of 377	88.0	226	−61%	RINA	A
2020	not published	2,251	751	+200%	342 of 387	99.6	217	−54%	RINA	A
2019	not published	1,516	569	+166%	339 of 394	124	223	−44%	RINA	A
2018	not published	713	729	−2%	179 of 361	170	184	−8%	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.