Navalyze · Bulk carrier · Ship

ARETHUSA

IMO: 9855563
Type: Bulk carrier
Average cargo carried: 53,355 t
Port of registry: Madeira
Technical efficiency: EEXI 3.49 g CO₂/t·nm
Former names: AQUAVITA SOL

ISM company (DoC holder) in 2025: Delia Bulkers LLC

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 53,355 t of cargo on average.

Fuel per mile

101.0 kg/nm

Bulk carrier median 82.6 kg/nm (+22%)

CO₂ per transport work (cargo)

5.92

g CO₂/t·nm · Bulk carrier median 7.89 (−25%)

Average speed

10.3 kn

Bulk carrier median 10.7 kn (−4%)

Fuel per day at sea

24.9 t/day

Fuel consumed

2,736 t

CO₂ emitted

8,555 t

8,689 t CO₂eq incl. CH₄ and N₂O

Distance sailed

27,085 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,635 h

110 days, 30% 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 101.0 kg/nm · median 82.6 (+22%)

61.0Ranks 2,939 of 3,610, lowest first114.1

Average speedThis ship 10.3 kn · median 10.7 (−4%)

8.8Faster than 36% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 5.92 g CO₂/t·nm · median 7.89 (−25%)

4.80Ranks 830 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 ports14%
From the EU30%
Into the EU52%
At berth in the EU4%

59% of this ship's CO₂ falls under the EU ETS (5,060 t).

Fuel burned laden

–

Not reported

CO₂ at berth

4.5%

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

ARETHUSA
Bulk carrier median

80.090.0100.0110.0

’202020’212021’222022’232023’242024’252025

Average speed, kn

ARETHUSA
Bulk carrier median

10.011.012.013.014.0

’202020’212021’222022’232023’242024’252025

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

ARETHUSA
Bulk carrier median

4.06.08.010.0

’202020’212021’222022’232023’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−0.2 kn	+2%	−0%	+35%	+7%	Same speed, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−1.2 kn	+3%	−7%	+88%	−27%	1.2 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−1.6 kn	+7%	−6%	−51%	−24%	1.6 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+2.2 kn	−15%	+2%	+367%	+31%	2.2 kn faster, fuel per mile down 15%; better than speed alone explains (hull, engine or trade).
2020→2021	−1.1 kn	+17%	+6%	−54%	+55%	1.1 kn slower, fuel per mile up 17%; worse than speed alone explains (fouling, weather, loading or trade).

Part-year reports are left out of these comparisons. 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	Delia Bulkers LLC	2,736	8,555	27,085	2,635	10.3	101.0	5.92	–
2024part-year	Sea Tribute Shipmanagement Ltd	1,336	4,203	13,740	1,314	10.5	97.2	6.08	–
2024	Delia Bulkers LLC	1,983	6,233	20,002	1,902	10.5	99.2	5.51	–
2023	not published	1,022	3,230	10,623	910	11.7	96.2	7.52	–
2022	not published	1,932	6,094	21,514	1,613	13.3	89.8	9.86	–
2021	not published	485	1,541	4,605	416	11.1	105.2	7.54	–
2020	not published	904	2,822	10,024	825	12.2	90.2	4.86	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	Delia Bulkers LLC	5.92	7.89	−25%	830 of 3,610	DNV	A
2024part-year	Sea Tribute Shipmanagement Ltd	–	–	–	–	ICS Verification Services	A
2024	Delia Bulkers LLC	5.51	8.09	−32%	513 of 3,089	DNV	A
2023	not published	7.52	8.27	−9%	1,451 of 3,548	ClassNK	C
2022	not published	9.86	8.71	+13%	2,436 of 3,968	ClassNK	C
2021	not published	7.54	8.57	−12%	1,230 of 3,466	ClassNK	C
2020	not published	4.86	8.24	−41%	239 of 3,150	ClassNK	C

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.