Navalyze · Ro-pax · Ship

BLUE STAR MYCONOS

IMO: 9208679
Type: Ro-pax ship
Flag (estimated): Greece
Port of registry: Piraeus
Technical efficiency: EEXI 35.50 g CO₂/t·nm
Former names: NISSOS MYKONOS

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

204

Ro-pax median 158 kg/nm (+28%)

CO₂ per transport work (pax)

391

g CO₂/pax·nm · Ro-pax median 729 (−46%)

CO₂ per transport work (freight)

1,167

g CO₂/t·nm · Ro-pax median 184 (+534%)

Average speed

23.1 kn

Ro-pax median 16.1 kn (+43%)

Fuel per day at sea

112.9 t/day

Fuel consumed

14,437 t

CO₂ emitted

45,505 t

Distance sailed

70,947 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,069 h

128 days, 35% 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 204 kg/nm · median 150 (+36%)

69.3Ranks 338 of 408, lowest first232

Average speedThis ship 22.0 kn · median 15.8 (+39%)

12.0Faster than 89% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 126 g CO₂/pax·nm · median 567 (−78%)

66.8Ranks 91 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 1,086 g CO₂/t·nm · median 253 (+329%)

48.6Ranks 356 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 ports92%
From the EU0%
Into the EU0%
At berth in the EU8%

Fuel burned laden

–

Not reported

CO₂ at berth

3,458 t

7.6% 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

BLUE STAR MYCONOS
Ro-pax median

140.0160.0180.0200.0220.0

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

Average speed, kn

BLUE STAR MYCONOS
Ro-pax median

14.016.018.020.022.024.0

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

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

BLUE STAR MYCONOS
Ro-pax median

0.02505007501,0001,250

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

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

BLUE STAR MYCONOS
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	−0%	+1%	−1%	−77%	0.3 kn faster, fuel per mile flat.
2023→2024	+0.2 kn	−0%	+0%	−2%	−2%	Same speed, fuel per mile flat.
2022→2023	−0.3 kn	+5%	+3%	−2%	+7%	0.3 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.1 kn	−3%	−3%	+29%	−14%	Same speed, fuel per mile down 3%; in line with the speed change.
2020→2021	+0.1 kn	+5%	+5%	−26%	−6%	Same speed, fuel per mile up 5%; in line with the speed change.
2019→2020	−0.5 kn	−5%	−7%	+14%	+30%	0.5 kn slower, fuel per mile down 5%; in line with the speed change.
2018→2019	−0.8 kn	−0%	−4%	+44%	+30%	0.8 kn slower, fuel per mile flat; 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	21,616	67,337	105,828	4,819	22.0	204	–	–
2024	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	21,787	67,896	106,657	4,918	21.7	204	–	–
2023	not published	22,276	69,389	108,493	5,055	21.5	205	–	–
2022	not published	21,726	67,669	110,774	5,070	21.8	196	–	–
2021	not published	17,275	53,807	85,822	3,918	21.9	201	–	–
2020	not published	22,440	69,902	116,528	5,344	21.8	193	–	–
2019	not published	20,783	65,506	102,267	4,589	22.3	203	–	–
2018	not published	14,437	45,505	70,947	3,069	23.1	204	–	–

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	126	567	−78%	91 of 408	1,086	253	+329%	Verifavia	B
2024	HELLENIC SEAWAYS SINGLE MEMBER MARITIME SA	557	547	+2%	207 of 404	591	233	+154%	RINA	B
2023	not published	570	680	−16%	169 of 386	596	234	+155%	RINA	B
2022	not published	535	626	−15%	181 of 394	569	253	+125%	RINA	B
2021	not published	622	815	−24%	167 of 377	586	226	+159%	RINA	B
2020	not published	662	751	−12%	179 of 387	688	217	+216%	RINA	B
2019	not published	510	569	−10%	182 of 394	624	223	+180%	RINA	B
2018	not published	391	729	−46%	132 of 361	1,167	184	+534%	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.