Navalyze · Ro-pax · Ship

NISSOS SAMOS

IMO: 8712635
Type: Ro-pax ship
Flag (estimated): Greece
Port of registry: Piraeus
Technical efficiency: EEXI 28.64 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

153

Ro-pax median 158 kg/nm (−3%)

CO₂ per transport work (pax)

174

g CO₂/pax·nm · Ro-pax median 729 (−76%)

CO₂ per transport work (freight)

399

g CO₂/t·nm · Ro-pax median 184 (+117%)

Average speed

18.7 kn

Ro-pax median 16.1 kn (+16%)

Fuel per day at sea

68.9 t/day

Fuel consumed

7,354 t

CO₂ emitted

23,200 t

Distance sailed

47,967 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,563 h

107 days, 29% 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 148 kg/nm · median 150 (−1%)

69.3Ranks 197 of 408, lowest first232

Average speedThis ship 16.9 kn · median 15.8 (+7%)

12.0Faster than 62% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 34.8 g CO₂/pax·nm · median 567 (−94%)

66.8Ranks 12 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 283 g CO₂/t·nm · median 253 (+12%)

48.6Ranks 213 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 ports84%
From the EU0%
Into the EU0%
At berth in the EU16%

Fuel burned laden

–

Not reported

CO₂ at berth

3,617 t

15.6% 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

NISSOS SAMOS
Ro-pax median

145.0150.0155.0160.0165.0

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

Average speed, kn

NISSOS SAMOS
Ro-pax median

15.016.017.018.019.0

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

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

NISSOS SAMOS
Ro-pax median

100200300400

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

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

NISSOS SAMOS
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	+0.3 kn	−4%	−2%	−8%	−80%	Same speed, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.1 kn	−3%	−3%	+3%	+5%	Same speed, fuel per mile down 3%; in line with the speed change.
2022→2023	−0.7 kn	−3%	−7%	−4%	−16%	0.7 kn slower, fuel per mile down 3%; in line with the speed change.
2021→2022	−0.3 kn	+2%	+1%	+6%	+12%	0.3 kn slower, fuel per mile up 2%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.1 kn	+3%	+3%	+5%	+3%	Same speed, fuel per mile up 3%; in line with the speed change.
2019→2020	−0.3 kn	−6%	−7%	−17%	−9%	Same speed, fuel per mile down 6%; in line with the speed change.
2018→2019	−0.8 kn	+8%	+3%	+49%	+7%	0.8 kn slower, fuel per mile up 8%; 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	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	8,982	28,577	60,513	3,587	16.9	148	–	–
2024	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	10,165	31,726	66,076	3,971	16.6	154	–	–
2023	not published	10,142	31,656	64,269	3,854	16.7	158	–	–
2022	not published	10,874	33,938	66,765	3,832	17.4	163	–	–
2021	not published	9,979	31,145	62,717	3,553	17.7	159	–	–
2020	not published	9,232	28,817	59,489	3,374	17.6	155	–	–
2019	not published	11,769	37,130	71,319	3,990	17.9	165	–	–
2018	not published	7,354	23,200	47,967	2,563	18.7	153	–	–

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	34.8	567	−94%	12 of 408	283	253	+12%	Verifavia	B
2024	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	174	547	−68%	118 of 404	241	233	+3%	RINA	B
2023	not published	165	680	−76%	86 of 386	233	234	−0%	RINA	B
2022	not published	196	626	−69%	100 of 394	266	253	+5%	RINA	B
2021	not published	175	815	−79%	88 of 377	243	226	+8%	RINA	B
2020	not published	169	751	−77%	90 of 387	255	217	+17%	RINA	B
2019	not published	186	569	−67%	106 of 394	292	223	+31%	RINA	B
2018	not published	174	729	−76%	90 of 361	399	184	+117%	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.