Navalyze · Ro-pax · Ship

SUPERSTAR

IMO: 7346221
Type: Ro-pax ship
Flag (estimated): Greece
Port of registry: Piraeus 9939
Technical efficiency: EIV 44.89 g CO₂/t·nm
Former names: SUPERFERRY II

ISM company (DoC holder) in 2025: Jambo Jet Maritime Co

Report year

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm

149

Ro-pax median 158 kg/nm (−6%)

CO₂ per transport work (pax)

4.28

g CO₂/pax·nm · Ro-pax median 729 (−99%)

CO₂ per transport work (freight)

3.56

g CO₂/t·nm · Ro-pax median 184 (−98%)

Average speed

18.7 kn

Ro-pax median 16.1 kn (+16%)

Fuel per day at sea

66.6 t/day

Fuel consumed

7,638 t

CO₂ emitted

23,947 t

Distance sailed

51,365 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,754 h

115 days, 31% 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 105 kg/nm · median 150 (−30%)

69.3Ranks 101 of 408, lowest first232

Average speedThis ship 15.0 kn · median 15.8 (−5%)

12.0Faster than 37% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 1,026 g CO₂/pax·nm · median 567 (+81%)

66.8Ranks 307 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 2,677 g CO₂/t·nm · median 253 (+958%)

48.6Ranks 386 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 ports100%
From the EU0%
Into the EU0%
At berth in the EU0%

Fuel burned laden

–

Not reported

CO₂ at berth

0 t

0.0% 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

SUPERSTAR
Ro-pax median

50.075.0100.0125.0150.0175.0

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

Average speed, kn

SUPERSTAR
Ro-pax median

12.014.016.018.020.0

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

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

SUPERSTAR
Ro-pax median

0.01,000,0002,000,0003,000,000

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

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

SUPERSTAR
Ro-pax median

0.0250,000500,000750,0001,000,000

’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	+1.8 kn	−22%	−11%	+34%	−100%	1.8 kn faster, fuel per mile down 22%; better than speed alone explains (hull, engine or trade).
2023→2024	−2.4 kn	−2%	−17%	−17%	+58,263%	2.4 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+2.5 kn	+10%	+32%	−11%	+21%	2.5 kn faster, fuel per mile up 10%; better than speed alone explains (hull, engine or trade).
2021→2022	−2.6 kn	−6%	−21%	−4%	+46,607%	2.6 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.0 kn	+1%	+1%	+22%	−27%	Same speed, fuel per mile flat.
2019→2020	−3.5 kn	+81%	+48%	−50%	+37%	3.5 kn slower, fuel per mile up 81%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.5 kn	−51%	−50%	+53%	−32%	0.5 kn faster, fuel per mile down 51%; better than speed alone explains (hull, engine 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	Jambo Jet Maritime Co	4,863	15,535	46,124	3,079	15.0	105	–	–
2024	Jambo Jet Maritime Co	4,642	14,605	34,365	2,610	13.2	135	–	–
2023	not published	5,714	17,956	41,509	2,662	15.6	138	–	–
2022	not published	5,804	18,197	46,495	3,560	13.1	125	–	–
2021	not published	6,413	20,073	48,419	3,090	15.7	132	–	–
2020	not published	5,192	16,263	39,564	2,526	15.7	131	–	–
2019	not published	5,705	17,863	78,670	4,098	19.2	72.5	–	–
2018	not published	7,638	23,947	51,365	2,754	18.7	149	–	–

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	Jambo Jet Maritime Co	1,026	567	+81%	307 of 408	2,677	253	+958%	EMICERT	A
2024	Jambo Jet Maritime Co	962,227	547	+175,913%	403 of 404	2,790,222	233	+1,198,191%	EMICERT	A
2023	not published	1,649	680	+142%	344 of 386	3,536	234	+1,411%	EMICERT	A
2022	not published	1,359	626	+117%	343 of 394	3,551	253	+1,304%	EMICERT	A
2021	not published	2.91	815	−100%	2 of 377	3.90	226	−98%	RINA	–
2020	not published	3.97	751	−99%	19 of 387	3.98	217	−98%	RINA	A
2019	not published	2.89	569	−99%	21 of 394	2.74	223	−99%	RINA	A
2018	not published	4.28	729	−99%	29 of 361	3.56	184	−98%	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.