Navalyze · Ro-pax · Ship

HIGHSPEED 4

IMO: 9216183
Type: Ro-pax ship
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

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

157.5 kg/nm

Ro-pax median 150.2 kg/nm (+5%)

CO₂ per transport work (pax)

708

g CO₂/pax·nm · Ro-pax median 567 (+25%)

CO₂ per transport work (freight)

5,669

g CO₂/t·nm · Ro-pax median 253 (+2,139%)

Average speed

28.2 kn

Ro-pax median 15.8 kn (+78%)

Fuel per day at sea

106.6 t/day

Fuel consumed

4,461 t

CO₂ emitted

14,302 t

14,521 t CO₂eq incl. CH₄ and N₂O

Distance sailed

28,325 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,004 h

42 days, 11% 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 157.5 kg/nm · median 150.2 (+5%)

69.3Ranks 231 of 408, lowest first232.4

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 707.66 g CO₂/pax·nm · median 566.51 (+25%)

66.76Ranks 236 of 408, lowest first1,568.87

CO₂ per transport work (freight)This ship 5,668.76 g CO₂/t·nm · median 253.18 (+2,139%)

48.59Ranks 405 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 ports100%
From the EU0%
Into the EU0%
At berth in the EU0%

1% of this ship's CO₂ falls under the EU ETS (81 t).

Fuel burned laden

–

Not reported

CO₂ at berth

0.4%

Alongside in EU ports

Methane (CH₄)

0.2 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.015

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

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	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	4,461	14,302	28,325	1,004	28.2	157.5	–	–
2024	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	5,367	17,207	31,562	1,122	28.1	170.1	–	–
2023	not published	6,444	20,658	38,107	1,332	28.6	169.1	–	–
2022	not published	6,537	20,959	39,866	1,357	29.4	164.0	–	–
2021	not published	3,584	11,490	20,923	743	28.2	171.3	–	–
2020	not published	0	0	–	0	–	–	–	–
2019	not published	5,791	18,566	34,786	1,170	29.7	166.5	–	–
2018	not published	7,453	23,893	44,654	1,524	29.3	166.9	–	–

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	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	707.66	566.51	+25%	236 of 408	5,668.76	253.18	+2,139%	Verifavia	B
2024	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	1,019.42	546.68	+86%	297 of 404	192.77	232.85	−17%	RINA	B
2023	not published	961.68	680.04	+41%	257 of 386	214.51	233.94	−8%	RINA	B
2022	not published	983.11	626.32	+57%	262 of 394	215.66	252.90	−15%	RINA	B
2021	not published	991.26	815.19	+22%	220 of 377	65.38	226.00	−71%	RINA	B
2020	not published	–	–	–	–	–	–	–	RINA	B
2019	not published	1,010.78	569.03	+78%	291 of 394	273.54	222.56	+23%	RINA	B
2018	not published	1,135.45	728.92	+56%	238 of 361	138,545.42	184.05	+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.