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Navalyze · Vehicle carrier · Ship

NEPTUNE KALLOS

IMO
9442122
Type
Vehicle carrier
Average cargo carried
3,545 t
Port of registry
Valletta
Technical efficiency
EEXI 19.03 g CO₂/t·nm

ISM company (DoC holder) in 2025: Neptune Lines Shipping and Managing Enterprises SA

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2025 at a glance

From the 2025 THETIS-MRV report. Carries about 3,545 t of cargo on average.

Fuel per mile
73.7 kg/nm
Vehicle carrier median 99.9 kg/nm (−26%)
CO₂ per transport work (cargo)
65.13
g CO₂/t·nm · Vehicle carrier median 55.36 (+18%)
Average speed
13.4 kn
Vehicle carrier median 14.4 kn (−7%)
Fuel per day at sea
23.6 t/day
Fuel consumed
4,400 t
CO₂ emitted
13,780 t
13,996 t CO₂eq incl. CH₄ and N₂O
Distance sailed
59,684 nm
CO₂ ÷ CO₂ per mile
Time at sea
4,468 h
186 days, 51% of the year

Within the vehicle carrier fleet, 2025

Set against all 506 vehicle carrier 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 73.7 kg/nm · median 99.9 (−26%)
79.6Ranks 27 of 506, lowest first119.0
Average speedThis ship 13.4 kn · median 14.4 (−7%)
12.0Faster than 27% of vehicle carrier ships15.9
CO₂ per transport work (cargo)This ship 65.13 g CO₂/t·nm · median 55.36 (+18%)
34.70Ranks 307 of 506, lowest first158.48
Middle 80% of shipsMiddle 50%Vehicle carrier 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 ports26%
  • From the EU19%
  • Into the EU50%
  • At berth in the EU4%

65% of this ship's CO₂ falls under the EU ETS (9,014 t).

Fuel burned laden
–
Not reported
CO₂ at berth
4.5%
Alongside in EU ports
Methane (CH₄)
0.2 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 Vehicle carrier median is the middle ship of all vehicle carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

  • NEPTUNE KALLOS
  • Vehicle carrier median

Average speed, kn

  • NEPTUNE KALLOS
  • Vehicle carrier median

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

  • NEPTUNE KALLOS
  • Vehicle carrier median

Year on year

YearSpeedFuel per mileFuel per dayDistanceCO₂ per TWReading
2024→2025+0.1 kn−19%−19%−4%−27%Same speed, fuel per mile down 19%; better than speed alone explains (hull, engine or trade).
2023→2024+1.7 kn−4%+11%+3%−9%1.7 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2022→2023−0.8 kn−3%−10%+84%+12%0.8 kn slower, fuel per mile down 3%; 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

YearISM companyFuel tCO₂ tDistance nmAt sea hSpeed knFuel kg/nmCO₂ g/t·nmLaden fuel
2025Neptune Lines Shipping and Managing Enterprises SA4,40013,78059,6844,46813.473.765.13–
2024Neptune Lines Shipping and Managing Enterprises SA5,68117,70562,3634,67313.391.188.88–
2023not published5,75417,95560,6875,23211.694.897.46–
2022not published3,23110,19032,9822,65412.498.086.80–

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/t·nmVehicle carrier medianvs Vehicle carrierRankVerifierMethods
2025Neptune Lines Shipping and Managing Enterprises SA65.1355.36+18%307 of 506DNVA+B+C
2024Neptune Lines Shipping and Managing Enterprises SA88.8855.31+61%272 of 335DNVA+B+C
2023not published97.4656.64+72%363 of 417DNVA+B+C
2022not published86.8057.66+51%373 of 463DNVA

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Vehicle carrier ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's vehicle carrier 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.