Navalyze · Ro-pax · Ship

HIGHSPEED 4

IMO: 9216183
Type: Ro-pax ship
Flag (estimated): Greece
Port of registry: Piraeus
Technical efficiency: EEXI 33.91 g CO₂/t·nm

ISM company (DoC holder) in 2025: HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA · part of Attica Group

Report year

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm

167

Ro-pax median 158 kg/nm (+5%)

CO₂ per transport work (pax)

1,135

g CO₂/pax·nm · Ro-pax median 729 (+56%)

CO₂ per transport work (freight)

138,545

g CO₂/t·nm · Ro-pax median 184 (+75,176%)

Average speed

29.3 kn

Ro-pax median 16.1 kn (+82%)

Fuel per day at sea

117.3 t/day

Fuel consumed

7,453 t

CO₂ emitted

23,893 t

Distance sailed

44,654 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,524 h

64 days, 17% 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 158 kg/nm · median 150 (+5%)

69.3Ranks 231 of 408, lowest first232

Average speedThis ship 28.2 kn · median 15.8 (+78%)

12.0Faster than 97% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 708 g CO₂/pax·nm · median 567 (+25%)

66.8Ranks 236 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 5,669 g CO₂/t·nm · median 253 (+2,139%)

48.6Ranks 405 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 ports86%
From the EU0%
Into the EU0%
At berth in the EU14%

Fuel burned laden

–

Not reported

CO₂ at berth

3,374 t

14.1% 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

HIGHSPEED 4
Ro-pax median

150.0160.0170.0180.0

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

Average speed, kn

HIGHSPEED 4
Ro-pax median

15.020.025.030.0

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

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

HIGHSPEED 4
Ro-pax median

0.050,000100,000150,000

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

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

HIGHSPEED 4
Ro-pax median

4006008001,0001,200

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.1 kn	−7%	−7%	−10%	−31%	Same speed, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.5 kn	+1%	−1%	−17%	+6%	0.5 kn slower, fuel per mile flat.
2022→2023	−0.8 kn	+3%	+0%	−4%	−2%	0.8 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+1.2 kn	−4%	−0%	+91%	−1%	1.2 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2020→2021	–	–	–	–	–
2019→2020	–	–	–	–	–
2018→2019	+0.4 kn	−0%	+1%	−22%	−11%	0.4 kn faster, 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	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	4,461	14,302	28,325	1,004	28.2	158	–	–
2024	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	5,367	17,207	31,562	1,122	28.1	170	–	–
2023	not published	6,444	20,658	38,107	1,332	28.6	169	–	–
2022	not published	6,537	20,959	39,866	1,357	29.4	164	–	–
2021	not published	3,584	11,490	20,923	743	28.2	171	–	–
2020	not published	0	0	–	0	–	–	–	–
2019	not published	5,791	18,566	34,786	1,170	29.7	167	–	–
2018	not published	7,453	23,893	44,654	1,524	29.3	167	–	–

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	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	708	567	+25%	236 of 408	5,669	253	+2,139%	Verifavia	B
2024	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	1,019	547	+86%	297 of 404	193	233	−17%	RINA	B
2023	not published	962	680	+41%	257 of 386	215	234	−8%	RINA	B
2022	not published	983	626	+57%	262 of 394	216	253	−15%	RINA	B
2021	not published	991	815	+22%	220 of 377	65.4	226	−71%	RINA	B
2020	not published	–	–	–	–	–	–	–	RINA	B
2019	not published	1,011	569	+78%	291 of 394	274	223	+23%	RINA	B
2018	not published	1,135	729	+56%	238 of 361	138,545	184	+75,176%	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.