Navalyze · Ro-pax · Ship

NISSOS SAMOS

IMO: 8712635
Type: Ro-pax ship
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

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

148.4 kg/nm

Ro-pax median 150.2 kg/nm (−1%)

CO₂ per transport work (pax)

34.80

g CO₂/pax·nm · Ro-pax median 567 (−94%)

CO₂ per transport work (freight)

283

g CO₂/t·nm · Ro-pax median 253 (+12%)

Average speed

16.9 kn

Ro-pax median 15.8 kn (+7%)

Fuel per day at sea

60.1 t/day

Fuel consumed

8,982 t

CO₂ emitted

28,577 t

29,018 t CO₂eq incl. CH₄ and N₂O

Distance sailed

60,513 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,587 h

149 days, 41% 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 148.4 kg/nm · median 150.2 (−1%)

69.3Ranks 197 of 408, lowest first232.4

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 34.80 g CO₂/pax·nm · median 566.51 (−94%)

66.76Ranks 12 of 408, lowest first1,568.87

CO₂ per transport work (freight)This ship 282.60 g CO₂/t·nm · median 253.18 (+12%)

48.59Ranks 213 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 ports97%
From the EU0%
Into the EU0%
At berth in the EU3%

1% of this ship's CO₂ falls under the EU ETS (257 t).

Fuel burned laden

–

Not reported

CO₂ at berth

2.6%

Alongside in EU ports

Methane (CH₄)

0.5 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

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	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	8,982	28,577	60,513	3,587	16.9	148.4	–	–
2024	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	10,165	31,726	66,076	3,971	16.6	153.8	–	–
2023	not published	10,142	31,656	64,269	3,854	16.7	157.8	–	–
2022	not published	10,874	33,938	66,765	3,832	17.4	162.9	–	–
2021	not published	9,979	31,145	62,717	3,553	17.7	159.1	–	–
2020	not published	9,232	28,817	59,489	3,374	17.6	155.2	–	–
2019	not published	11,769	37,130	71,319	3,990	17.9	165.0	–	–
2018	not published	7,354	23,200	47,967	2,563	18.7	153.3	–	–

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	34.80	566.51	−94%	12 of 408	282.60	253.18	+12%	Verifavia	B
2024	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	173.66	546.68	−68%	118 of 404	240.80	232.85	+3%	RINA	B
2023	not published	165.06	680.04	−76%	86 of 386	232.97	233.94	−0%	RINA	B
2022	not published	195.64	626.32	−69%	100 of 394	266.03	252.90	+5%	RINA	B
2021	not published	175.09	815.19	−79%	88 of 377	243.48	226.00	+8%	RINA	B
2020	not published	169.49	750.91	−77%	90 of 387	254.91	217.49	+17%	RINA	B
2019	not published	185.53	569.03	−67%	106 of 394	291.82	222.56	+31%	RINA	B
2018	not published	173.78	728.92	−76%	90 of 361	398.66	184.05	+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.