Navalyze · Bulk carrier · Ship

NAVA DIONYSSOS

IMO: 9608673
Type: Bulk carrier
Average cargo carried: 25,679 t
Port of registry: Valletta
Technical efficiency: EEXI 5.30 g CO₂/t·nm
Former names: IONIC HAWK

ISM company (DoC holder) in 2025: ISTIA MARITIME CO.

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 25,679 t of cargo on average.

Fuel per mile

83.8 kg/nm

Bulk carrier median 82.6 kg/nm (+1%)

CO₂ per transport work (cargo)

10.37

g CO₂/t·nm · Bulk carrier median 7.89 (+31%)

Average speed

10.4 kn

Bulk carrier median 10.7 kn (−3%)

Fuel per day at sea

20.9 t/day

Fuel consumed

872 t

CO₂ emitted

2,770 t

2,813 t CO₂eq incl. CH₄ and N₂O

Distance sailed

10,403 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,003 h

42 days, 11% 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 83.8 kg/nm · median 82.6 (+1%)

61.0Ranks 1,884 of 3,610, lowest first114.1

Average speedThis ship 10.4 kn · median 10.7 (−3%)

8.8Faster than 39% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 10.37 g CO₂/t·nm · median 7.89 (+31%)

4.80Ranks 2,653 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 ports41%
From the EU10%
Into the EU39%
At berth in the EU10%

76% of this ship's CO₂ falls under the EU ETS (2,095 t).

Fuel burned laden

84%

16% in ballast or unladen

CO₂ at berth

10.1%

Alongside in EU ports

Methane (CH₄)

0.0 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

NAVA DIONYSSOS
Bulk carrier median

70.080.090.0100.0110.0

’182018’192019’202020’212021’252025

Average speed, kn

NAVA DIONYSSOS
Bulk carrier median

9.510.010.511.011.5

’182018’192019’202020’212021’252025

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

NAVA DIONYSSOS
Bulk carrier median

7.510.012.515.017.5

’182018’192019’202020’212021’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2021→2025	−0.5 kn	−2%	−7%	−41%	+4%	0.5 kn slower, fuel per mile down 2%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+1.0 kn	−17%	−9%	+141%	−40%	1.0 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2019→2020	−1.1 kn	+40%	+27%	−44%	+64%	1.1 kn slower, fuel per mile up 40%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.2 kn	−23%	−21%	+189%	−9%	Same speed, fuel per mile down 23%; 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

Year	ISM company	Fuel t	CO₂ t	Distance nm	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	ISTIA MARITIME CO.	872	2,770	10,403	1,003	10.4	83.8	10.37	84%
2021	not published	1,499	4,716	17,508	1,603	10.9	85.6	9.96	–
2020	not published	751	2,380	7,268	734	9.9	103.4	16.51	–
2019	not published	949	2,986	12,906	1,173	11.0	73.6	10.08	–
2018	not published	426	1,344	4,468	414	10.8	95.4	11.04	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	ISTIA MARITIME CO.	10.37	7.89	+31%	2,653 of 3,610	ICS Verification Services	A
2021	not published	9.96	8.57	+16%	2,246 of 3,466	ClassNK	A
2020	not published	16.51	8.24	+100%	2,920 of 3,150	ClassNK	A
2019	not published	10.08	8.38	+20%	2,268 of 3,360	ClassNK	A
2018	not published	11.04	8.50	+30%	2,501 of 3,384	ClassNK	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.