Navalyze · Ro-pax · Ship

NOVA STAR

IMO: 9462067
Type: Ro-pax ship
Flag (estimated): Bahamas
Port of registry: Nassau
Technical efficiency: EEXI 34.24 g CO₂/t·nm

ISM company (DoC holder) in 2025: Polska Zegluga Baltycka S.A.

Report year

2021 at a glance

From the 2021 THETIS-MRV report.

Fuel kg/nm

142

Ro-pax median 155 kg/nm (−8%)

CO₂ per transport work (pax)

186

g CO₂/pax·nm · Ro-pax median 815 (−77%)

CO₂ per transport work (freight)

302

g CO₂/t·nm · Ro-pax median 226 (+33%)

Average speed

15.4 kn

Ro-pax median 16.2 kn (−5%)

Fuel per day at sea

52.4 t/day

Fuel consumed

11,999 t

CO₂ emitted

37,994 t

Distance sailed

84,699 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,493 h

229 days, 63% 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 150 kg/nm · median 150 (−0%)

69.3Ranks 201 of 408, lowest first232

Average speedThis ship 14.9 kn · median 15.8 (−6%)

12.0Faster than 36% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 199 g CO₂/pax·nm · median 567 (−65%)

66.8Ranks 120 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 425 g CO₂/t·nm · median 253 (+68%)

48.6Ranks 255 of 408, lowest first1,247

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

Where the emissions happen, 2021

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 ports93%
From the EU0%
Into the EU0%
At berth in the EU7%

Fuel burned laden

–

Not reported

CO₂ at berth

2,815 t

7.4% 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

NOVA STAR
Ro-pax median

135.0140.0145.0150.0155.0160.0

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

Average speed, kn

NOVA STAR
Ro-pax median

14.515.015.516.016.5

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

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

NOVA STAR
Ro-pax median

200300400500

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

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

NOVA STAR
Ro-pax median

0.02004006008001,000

’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	−0.7 kn	+8%	+2%	−6%	−3%	0.7 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.3 kn	−3%	−4%	−1%	+1%	0.3 kn slower, fuel per mile down 3%; in line with the speed change.
2022→2023	−0.1 kn	+4%	+3%	−3%	+16%	Same speed, fuel per mile up 4%; in line with the speed change.
2021→2022	+0.6 kn	−2%	+2%	+1%	−6%	0.6 kn faster, fuel per mile down 2%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.3 kn	−1%	−3%	+14%	−2%	Same speed, fuel per mile flat.
2019→2020	−0.1 kn	+2%	+1%	−14%	+3%	Same speed, fuel per mile flat.

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	Polska Zegluga Baltycka S.A.	11,704	37,031	78,029	5,246	14.9	150	–	–
2024	Polska Zegluga Baltycka S.A.	11,505	36,407	82,729	5,288	15.6	139	–	–
2023	not published	11,923	37,728	83,232	5,237	15.9	143	–	–
2022	not published	11,864	37,536	85,823	5,350	16.0	138	–	–
2021	not published	11,999	37,994	84,699	5,493	15.4	142	–	–
2020	not published	10,606	33,548	74,427	4,734	15.7	143	–	–
2019	not published	12,127	38,354	86,414	5,456	15.8	140	–	–

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	Polska Zegluga Baltycka S.A.	199	567	−65%	120 of 408	425	253	+68%	DNV	A+B+C
2024	Polska Zegluga Baltycka S.A.	205	547	−62%	123 of 404	417	233	+79%	DNV	A+B+C
2023	not published	203	680	−70%	97 of 386	427	234	+82%	DNV	A
2022	not published	176	626	−72%	95 of 394	332	253	+31%	DNV	A
2021	not published	186	815	−77%	89 of 377	302	226	+33%	DNV	A
2020	not published	190	751	−75%	96 of 387	300	217	+38%	DNV	A+B
2019	not published	185	569	−67%	105 of 394	293	223	+32%	DNV	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.