Navalyze · Ro-pax · Ship

SUPERFAST XI

IMO: 9227417
Type: Ro-pax ship
Flag (estimated): Greece
Port of registry: Piraeus
Technical efficiency: EEXI 28.90 g CO₂/t·nm

ISM company (DoC holder) in 2025: SUPERFAST FERRIES S.A. · part of Attica Group

Report year

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm

301

Ro-pax median 158 kg/nm (+90%)

CO₂ per transport work (pax)

230

g CO₂/pax·nm · Ro-pax median 729 (−68%)

CO₂ per transport work (freight)

267

g CO₂/t·nm · Ro-pax median 184 (+45%)

Average speed

24.0 kn

Ro-pax median 16.1 kn (+49%)

Fuel per day at sea

172.9 t/day

Fuel consumed

44,834 t

CO₂ emitted

140,372 t

Distance sailed

149,075 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,224 h

259 days, 71% 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 293 kg/nm · median 150 (+95%)

69.3Ranks 404 of 408, lowest first232

Average speedThis ship 22.3 kn · median 15.8 (+41%)

12.0Faster than 90% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 42.8 g CO₂/pax·nm · median 567 (−92%)

66.8Ranks 17 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 388 g CO₂/t·nm · median 253 (+53%)

48.6Ranks 244 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 ports97%
From the EU0%
Into the EU0%
At berth in the EU3%

Fuel burned laden

–

Not reported

CO₂ at berth

4,646 t

3.3% 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

SUPERFAST XI
Ro-pax median

150.0200.0250.0300.0350.0

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

Average speed, kn

SUPERFAST XI
Ro-pax median

15.017.520.022.525.0

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

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

SUPERFAST XI
Ro-pax median

100200300400

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

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

SUPERFAST XI
Ro-pax median

0.02004006008001,000

’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	−0.2 kn	+3%	+2%	+18%	−84%	Same speed, fuel per mile up 3%; in line with the speed change.
2023→2024	−1.5 kn	−8%	−14%	−21%	−4%	1.5 kn slower, fuel per mile down 8%; in line with the speed change.
2022→2023	−0.3 kn	+3%	+2%	+35%	+8%	0.3 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.5 kn	−1%	+1%	−9%	−6%	0.5 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2020→2021	+0.1 kn	+1%	+1%	+44%	+5%	Same speed, fuel per mile flat.
2019→2020	−0.1 kn	+7%	+7%	−38%	+24%	Same speed, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.2 kn	−6%	−7%	−8%	−7%	Same speed, fuel per mile down 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	SUPERFAST FERRIES S.A.	41,045	127,344	140,031	6,275	22.3	293	–	–
2024	SUPERFAST FERRIES S.A.	33,832	105,445	118,978	5,280	22.5	284	–	–
2023	not published	46,477	145,052	149,745	6,238	24.0	310	–	–
2022	not published	33,351	103,876	110,730	4,564	24.3	301	–	–
2021	not published	37,070	115,470	121,764	5,112	23.8	304	–	–
2020	not published	25,519	79,597	84,603	3,572	23.7	302	–	–
2019	not published	38,471	120,551	136,507	5,737	23.8	282	–	–
2018	not published	44,834	140,372	149,075	6,224	24.0	301	–	–

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	SUPERFAST FERRIES S.A.	42.8	567	−92%	17 of 408	388	253	+53%	Verifavia	B
2024	SUPERFAST FERRIES S.A.	271	547	−51%	137 of 404	306	233	+31%	Verifavia	B
2023	not published	282	680	−59%	107 of 386	314	234	+34%	Verifavia	–
2022	not published	261	626	−58%	116 of 394	291	253	+15%	Verifavia	B
2021	not published	277	815	−66%	113 of 377	323	226	+43%	Verifavia	B
2020	not published	265	751	−65%	113 of 387	344	217	+58%	Verifavia	B
2019	not published	213	569	−63%	111 of 394	287	223	+29%	Verifavia	B
2018	not published	230	729	−68%	103 of 361	267	184	+45%	Verifavia	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.