Navalyze

Navalyze · Ro-pax · Ship

KAUNAS

IMO
8311924
Type
Ro-pax ship
Flag (estimated)
Panama
Port of registry
Panama
Technical efficiency
EEXI 28.40 g CO₂/t·nm
Ice class
IB

ISM company (DoC holder) in 2025: "UMM" LLC

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2025 at a glance

From the 2025 THETIS-MRV report.

Fuel kg/nm
131
CO₂ per transport work (pax)
28,162
g CO₂/pax·nm
CO₂ per transport work (freight)
196
g CO₂/t·nm
Average speed
8.6 kn
Fuel per day at sea
27.0 t/day
Fuel consumed
2,767 t
CO₂ emitted
8,871 t
9,007 t CO₂eq incl. CH₄ and N₂O
Distance sailed
21,210 nm
CO₂ ÷ CO₂ per mile
Time at sea
2,457 h
102 days, 28% of the year

Within the ro-pax fleet, 2024

Set against all 404 ro-pax ships with a full-year 2024 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 127 kg/nm · median 151 (−16%)
73.1Ranks 130 of 404, lowest first237
Average speedThis ship 8.3 kn · median 15.7 (−47%)
11.7Faster than 2% of ro-pax ships22.4
CO₂ per transport work (pax)This ship 188,753 g CO₂/pax·nm · median 547 (+34,427%)
58.4Ranks 396 of 404, lowest first1,957
CO₂ per transport work (freight)This ship 257 g CO₂/t·nm · median 233 (+10%)
30.8Ranks 214 of 404, lowest first1,069
Middle 80% of shipsMiddle 50%Ro-pax medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's emissions 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 ports0%
  • From the EU44%
  • Into the EU39%
  • At berth in the EU17%

58% of this ship's CO₂ falls under the EU ETS (5,177 t).

Fuel burned laden
–
Not reported
CO₂ at berth
1,469 t
16.6% of the ship's CO₂, alongside in EU ports
Methane (CH₄)
0.1 t
Mainly from LNG; small for oil, biofuel and methanol
CO₂eq uplift
+136 t
+1.5% CO₂eq on top of CO₂ alone, 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 kg/nm

  • KAUNAS
  • Ro-pax median

Average speed, kn

  • KAUNAS
  • Ro-pax median

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

  • KAUNAS
  • Ro-pax median

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

  • KAUNAS
  • Ro-pax median

Year on year

YearAverage speedFuel kg/nmFuel per day at seaDistanceCO₂ per transport workReading
2024→2025+0.3 kn+3%+7%+6%–Same speed, fuel per mile up 3%; in line with the speed change.
2023→2024+1.2 kn−10%+6%+12%+1,167%1.2 kn faster, fuel per mile down 10%; 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

YearISM companyFuel tCO₂ tDistance nmHours at seahAverage speedknots at seaFuel kg/nmthis shipCO₂ per transport work (cargo)g/t·nm, this shipLaden fuel
2025"UMM" LLC2,7678,87121,2102,4578.6131––
2024"UMM" LLC2,5398,09320,0732,4068.3127––
2023not published2,4987,99117,8722,5197.1140––

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
2025"UMM" LLC–––––––VerifaviaC
2024"UMM" LLC188,753547+34,427%396 of 404257233+10%VerifaviaC
2023not published14,897680+2,091%386 of 386197234−16%VerifaviaC

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.