Navalyze · Ro-pax · Ship

BLUE STAR PATMOS

IMO: 9565041
Type: Ro-pax ship
Flag (estimated): Greece
Port of registry: Piraeus
Technical efficiency: EEXI 33.26 g CO₂/t·nm

ISM company (DoC holder) in 2025: BLUE STAR FERRIES SINGLE MEMBER MARITIME S.A. · part of Attica Group

Report year

2019 at a glance

From the 2019 THETIS-MRV report.

Fuel kg/nm

209

Ro-pax median 155 kg/nm (+35%)

CO₂ per transport work (pax)

484

g CO₂/pax·nm · Ro-pax median 569 (−15%)

CO₂ per transport work (freight)

607

g CO₂/t·nm · Ro-pax median 223 (+173%)

Average speed

20.4 kn

Ro-pax median 15.8 kn (+29%)

Fuel per day at sea

102.3 t/day

Fuel consumed

25,233 t

CO₂ emitted

79,534 t

Distance sailed

120,488 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,918 h

247 days, 68% 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 235 kg/nm · median 150 (+57%)

69.3Ranks 371 of 408, lowest first232

Average speedThis ship 20.6 kn · median 15.8 (+30%)

12.0Faster than 86% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 186 g CO₂/pax·nm · median 567 (−67%)

66.8Ranks 114 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 1,241 g CO₂/t·nm · median 253 (+390%)

48.6Ranks 367 of 408, lowest first1,247

Middle 80% of shipsMiddle 50%Ro-pax medianThis ship

Where the emissions happen, 2019

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 ports96%
From the EU0%
Into the EU0%
At berth in the EU4%

Fuel burned laden

–

Not reported

CO₂ at berth

3,428 t

4.3% 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

BLUE STAR PATMOS
Ro-pax median

150.0175.0200.0225.0250.0

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

Average speed, kn

BLUE STAR PATMOS
Ro-pax median

14.016.018.020.022.0

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

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

BLUE STAR PATMOS
Ro-pax median

0.05001,0001,500

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

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

BLUE STAR PATMOS
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	+2%	+1%	+8%	−72%	Same speed, fuel per mile flat.
2023→2024	−0.2 kn	+3%	+2%	−8%	−5%	Same speed, fuel per mile up 3%; in line with the speed change.
2022→2023	+0.1 kn	+2%	+2%	+3%	+15%	Same speed, fuel per mile flat.
2021→2022	+0.2 kn	+0%	+1%	−4%	−5%	Same speed, fuel per mile flat.
2020→2021	+0.2 kn	+2%	+3%	+64%	−1%	Same speed, fuel per mile flat.
2019→2020	+0.1 kn	+3%	+4%	−38%	+35%	Same speed, fuel per mile up 3%; in line with the speed change.
2018→2019	+0.3 kn	+4%	+5%	+13%	−12%	Same speed, fuel per mile up 4%; 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	BLUE STAR FERRIES SINGLE MEMBER MARITIME S.A.	28,435	88,731	120,958	5,884	20.6	235	–	–
2024	BLUE STAR FERRIES SINGLE MEMBER MARITIME S.A.	25,921	80,796	112,016	5,395	20.8	231	–	–
2023	not published	27,346	85,165	121,782	5,812	21.0	225	–	–
2022	not published	26,214	81,645	118,770	5,686	20.9	221	–	–
2021	not published	27,160	84,591	123,157	5,939	20.7	221	–	–
2020	not published	16,258	50,670	75,161	3,668	20.5	216	–	–
2019	not published	25,233	79,534	120,488	5,918	20.4	209	–	–
2018	not published	21,468	67,664	106,494	5,293	20.1	202	–	–

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	BLUE STAR FERRIES SINGLE MEMBER MARITIME S.A.	186	567	−67%	114 of 408	1,241	253	+390%	Verifavia	B
2024	BLUE STAR FERRIES SINGLE MEMBER MARITIME S.A.	669	547	+22%	224 of 404	740	233	+218%	Verifavia	B
2023	not published	706	680	+4%	205 of 386	763	234	+226%	Verifavia	–
2022	not published	614	626	−2%	195 of 394	713	253	+182%	Verifavia	B
2021	not published	649	815	−20%	168 of 377	688	226	+204%	Verifavia	B
2020	not published	654	751	−13%	177 of 387	675	217	+210%	Verifavia	B
2019	not published	484	569	−15%	178 of 394	607	223	+173%	Verifavia	B
2018	not published	547	729	−25%	155 of 361	6.92	184	−96%	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.