Navalyze

Navalyze · Ro-pax · Ship

NOVA STAR

IMO
9462067
Type
Ro-pax ship
Port of registry
Nassau
Technical efficiency
EEXI 34.24 g CO₂/t·nm

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

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2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile
150.0 kg/nm
Ro-pax median 150.2 kg/nm (−0%)
CO₂ per transport work (pax)
199
g CO₂/pax·nm · Ro-pax median 567 (−65%)
CO₂ per transport work (freight)
425
g CO₂/t·nm · Ro-pax median 253 (+68%)
Average speed
14.9 kn
Ro-pax median 15.8 kn (−6%)
Fuel per day at sea
53.5 t/day
Fuel consumed
11,704 t
CO₂ emitted
37,031 t
37,606 t CO₂eq incl. CH₄ and N₂O
Distance sailed
78,029 nm
CO₂ ÷ CO₂ per mile
Time at sea
5,246 h
219 days, 60% 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 150.0 kg/nm · median 150.2 (−0%)
69.3Ranks 201 of 408, lowest first232.4
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 199.08 g CO₂/pax·nm · median 566.51 (−65%)
66.76Ranks 120 of 408, lowest first1,568.87
CO₂ per transport work (freight)This ship 424.83 g CO₂/t·nm · median 253.18 (+68%)
48.59Ranks 255 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 ports91%
  • From the EU0%
  • Into the EU0%
  • At berth in the EU9%

100% of this ship's CO₂ falls under the EU ETS (37,031 t).

Fuel burned laden
–
Not reported
CO₂ at berth
9.1%
Alongside in EU ports
Methane (CH₄)
0.6 t
Mainly from LNG; small for oil
CO₂eq ÷ CO₂
1.016
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

  • NOVA STAR
  • Ro-pax median

Average speed, kn

  • NOVA STAR
  • Ro-pax median

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

  • NOVA STAR
  • Ro-pax median

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

  • NOVA STAR
  • Ro-pax median

Year on year

YearSpeedFuel per mileFuel per dayDistanceCO₂ per TWReading
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

YearISM companyFuel tCO₂ tDistance nmAt sea hSpeed knFuel kg/nmCO₂ g/t·nmLaden fuel
2025Polska Zegluga Baltycka S.A.11,70437,03178,0295,24614.9150.0––
2024Polska Zegluga Baltycka S.A.11,50536,40782,7295,28815.6139.1––
2023not published11,92337,72883,2325,23715.9143.2––
2022not published11,86437,53685,8235,35016.0138.2––
2021not published11,99937,99484,6995,49315.4141.7––
2020not published10,60633,54874,4274,73415.7142.5––
2019not published12,12738,35486,4145,45615.8140.3––

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/pax·nmRo-pax medianvs Ro-paxRankFreight, g CO₂/t·nmRo-pax median vs Ro-pax VerifierMethods
2025Polska Zegluga Baltycka S.A.199.08566.51−65%120 of 408424.83253.18+68%DNVA+B+C
2024Polska Zegluga Baltycka S.A.205.07546.68−62%123 of 404417.44232.85+79%DNVA+B+C
2023not published203.45680.04−70%97 of 386426.93233.94+82%DNVA
2022not published175.73626.32−72%95 of 394331.93252.90+31%DNVA
2021not published186.36815.19−77%89 of 377301.61226.00+33%DNVA
2020not published189.82750.91−75%96 of 387299.93217.49+38%DNVA+B
2019not published184.97569.03−67%105 of 394293.03222.56+32%DNVA

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.