Navalyze

Navalyze · Bulk carrier · Ship

BUNUN STAR

IMO
9912440
Type
Bulk carrier
Average cargo carried
33,811 t
Technical efficiency
EEXI 5.08 g CO₂/t·nm

ISM company (DoC holder) in 2025: Wisdom Marine International Inc. · part of Wisdom Marine

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2025 at a glance

From the 2025 THETIS-MRV report. Carries about 33,811 t of cargo on average.

Fuel per mile
67.6 kg/nm
Bulk carrier median 82.6 kg/nm (−18%)
CO₂ per transport work (cargo)
6.24
g CO₂/t·nm · Bulk carrier median 7.89 (−21%)
Average speed
11.9 kn
Bulk carrier median 10.7 kn (+11%)
Fuel per day at sea
19.3 t/day
Fuel consumed
1,050 t
CO₂ emitted
3,276 t
3,327 t CO₂eq incl. CH₄ and N₂O
Distance sailed
15,525 nm
CO₂ ÷ CO₂ per mile
Time at sea
1,304 h
54 days, 15% of the year

Within the bulk carrier fleet, 2025

Set against all 3,610 bulk 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 67.6 kg/nm · median 82.6 (−18%)
61.0Ranks 733 of 3,610, lowest first114.1
Average speedThis ship 11.9 kn · median 10.7 (+11%)
8.8Faster than 92% of bulk carrier ships11.8
CO₂ per transport work (cargo)This ship 6.24 g CO₂/t·nm · median 7.89 (−21%)
4.80Ranks 993 of 3,610, lowest first15.93
Middle 80% of shipsMiddle 50%Bulk 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 ports8%
  • From the EU6%
  • Into the EU84%
  • At berth in the EU1%

55% of this ship's CO₂ falls under the EU ETS (1,788 t).

Fuel burned laden
–
Not reported
CO₂ at berth
1.0%
Alongside in EU ports
Methane (CH₄)
0.1 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 Bulk carrier median is the middle ship of all bulk 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

  • BUNUN STAR
  • Bulk carrier median

Average speed, kn

  • BUNUN STAR
  • Bulk carrier median

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

  • BUNUN STAR
  • Bulk carrier median

Year on year

YearSpeedFuel per mileFuel per dayDistanceCO₂ per TWReading
2024→2025+1.7 kn−15%−1%+616%–1.7 kn faster, fuel per mile down 15%; better than speed alone explains (hull, engine or trade).
2022→2024−2.0 kn+18%−2%−64%–2.0 kn slower, fuel per mile up 18%; 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
2025Wisdom Marine International Inc.1,0503,27615,5251,30411.967.66.24–
2024Wisdom Marine International Inc.1735452,16921310.279.9––
2022not published4041,2765,97848912.267.57.78–

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/t·nmBulk carrier medianvs Bulk carrierRankVerifierMethods
2025Wisdom Marine International Inc.6.247.89−21%993 of 3,610ClassNKA
2024Wisdom Marine International Inc.––––ClassNKA
2022not published7.788.71−11%1,516 of 3,968ClassNKA

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Bulk 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 bulk 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.