Navalyze · Bulk carrier · Ship

AYANA STAR

IMO: 9291212
Type: Bulk carrier
Average cargo carried: 12,466 t
Port of registry: San Marino
Technical efficiency: EEXI 5.78 g CO₂/t·nm
Former names: PORT KENNY

ISM company (DoC holder) in 2025: Astro Marine LTD

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 12,466 t of cargo on average.

Fuel per mile

48.1 kg/nm

Bulk carrier median 82.6 kg/nm (−42%)

CO₂ per transport work (cargo)

12.20

g CO₂/t·nm · Bulk carrier median 7.89 (+55%)

Average speed

10.6 kn

Bulk carrier median 10.7 kn (−1%)

Fuel per day at sea

12.3 t/day

Fuel consumed

420 t

CO₂ emitted

1,328 t

1,348 t CO₂eq incl. CH₄ and N₂O

Distance sailed

8,730 nm

CO₂ ÷ CO₂ per mile

Time at sea

822 h

34 days, 9% 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 48.1 kg/nm · median 82.6 (−42%)

61.0Ranks 69 of 3,610, lowest first114.1

Average speedThis ship 10.6 kn · median 10.7 (−1%)

8.8Faster than 47% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 12.20 g CO₂/t·nm · median 7.89 (+55%)

4.80Ranks 2,967 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 ports7%
From the EU13%
Into the EU77%
At berth in the EU4%

55% of this ship's CO₂ falls under the EU ETS (732 t).

Fuel burned laden

–

Not reported

CO₂ at berth

3.6%

Alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.015

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

AYANA STAR
Bulk carrier median

40.060.080.0100.0

’182018’192019’202020’232023’242024’252025

Average speed, kn

AYANA STAR
Bulk carrier median

9.010.011.012.0

’182018’192019’202020’232023’242024’252025

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

AYANA STAR
Bulk carrier median

5.010.015.020.0

’182018’192019’202020’232023’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	+1.1 kn	−34%	−26%	−36%	−35%	1.1 kn faster, fuel per mile down 34%; better than speed alone explains (hull, engine or trade).
2023→2024	+0.2 kn	+13%	+15%	−54%	+79%	Same speed, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2023	−1.6 kn	+15%	−2%	+126%	+19%	1.6 kn slower, fuel per mile up 15%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+1.9 kn	−32%	−18%	−35%	−26%	1.9 kn faster, fuel per mile down 32%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.9 kn	+35%	+23%	+97%	+33%	0.9 kn slower, fuel per mile up 35%; 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

Year	ISM company	Fuel t	CO₂ t	Distance nm	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Astro Marine LTD	420	1,328	8,730	822	10.6	48.1	12.20	–
2024	Astro Marine LTD	994	3,148	13,608	1,436	9.5	73.0	18.75	–
2023	not published	1,898	5,994	29,481	3,167	9.3	64.4	10.50	–
2020	not published	732	2,289	13,021	1,194	10.9	56.2	8.85	–
2019	not published	1,676	5,259	20,143	2,232	9.0	83.2	11.90	64%
2018	not published	631	1,984	10,210	1,035	9.9	61.8	8.94	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	Astro Marine LTD	12.20	7.89	+55%	2,967 of 3,610	Dromon Bureau of Shipping	A
2024	Astro Marine LTD	18.75	8.09	+132%	2,891 of 3,089	Dromon Bureau of Shipping	A
2023	not published	10.50	8.27	+27%	2,477 of 3,548	Dromon Bureau of Shipping	A
2020	not published	8.85	8.24	+7%	1,808 of 3,150	ABS	A
2019	not published	11.90	8.38	+42%	2,668 of 3,360	ABS	A
2018	not published	8.94	8.50	+5%	1,858 of 3,384	ABS	A

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.