Navalyze · Bulk carrier · Ship

NAVA ULYSSES

IMO: 9602186
Type: Bulk carrier
Average cargo carried: 28,915 t
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEXI 5.24 g CO₂/t·nm
Former names: GRAIG ROTTERDAM

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

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 253,363 t of cargo on average.

Fuel kg/nm

783

Bulk carrier median 92.4 kg/nm (+747%)

CO₂ per transport work (cargo)

9.70

g CO₂/t·nm · Bulk carrier median 8.50 (+14%)

Average speed

1.0 kn

Bulk carrier median 10.4 kn (−90%)

Fuel per day at sea

18.8 t/day

Fuel consumed

2,162 t

CO₂ emitted

6,790 t

Distance sailed

2,763 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,763 h

115 days, 32% of the year

Within the bulk carrier fleet, 2025

Set against all 3,611 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 kg/nmThis ship 66.8 kg/nm · median 82.6 (−19%)

61.0Ranks 686 of 3,611, lowest first114

Average speedThis ship 9.4 kn · median 10.7 (−12%)

8.8Faster than 17% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 7.29 g CO₂/t·nm · median 7.90 (−8%)

4.80Ranks 1,524 of 3,611, lowest first15.9

Middle 80% of shipsMiddle 50%Bulk carrier medianThis ship

Where the emissions happen, 2018

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 ports5%
From the EU40%
Into the EU50%
At berth in the EU5%

Fuel burned laden

–

Not reported

CO₂ at berth

365 t

5.4% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

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 kg/nm

NAVA ULYSSES
Bulk carrier median

0.0200.0400.0600.0800.0

’182018’192019’202020’222022’232023’242024’252025

Average speed, kn

NAVA ULYSSES
Bulk carrier median

0.05.010.015.0

’182018’192019’202020’222022’232023’242024’252025

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

NAVA ULYSSES
Bulk carrier median

6.08.010.012.014.016.0

’182018’192019’202020’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.8 kn	−13%	−27%	−10%	−20%	1.8 kn slower, fuel per mile down 13%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+1.3 kn	−25%	−15%	+122%	−36%	1.3 kn faster, fuel per mile down 25%; better than speed alone explains (hull, engine or trade).
2022→2023	−1.7 kn	+26%	+7%	−23%	+44%	1.7 kn slower, fuel per mile up 26%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2022	−0.8 kn	−3%	−9%	+4%	+3%	0.8 kn slower, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+1.5 kn	+7%	+21%	−59%	+12%	1.5 kn faster, fuel per mile up 7%; better than speed alone explains (hull, engine or trade).
2018→2019	+9.9 kn	−90%	+9%	+761%	−11%	9.9 kn faster, fuel per mile down 90%; 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	ISTIA MARITIME CO.	1,030	3,248	15,409	1,634	9.4	66.8	7.29	92%
2024	ISTIA MARITIME CO.	1,312	4,095	17,127	1,523	11.2	76.6	9.10	–
2023	not published	791	2,487	7,732	778	9.9	102	14.3	–
2022	not published	819	2,573	10,080	866	11.6	81.2	9.91	–
2020	not published	814	2,575	9,698	784	12.4	84.0	9.65	–
2019	not published	1,865	5,845	23,788	2,188	10.9	78.4	8.65	–
2018	not published	2,162	6,790	2,763	2,763	1.0	783	9.70	–

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.	7.29	7.90	−8%	1,524 of 3,611	ICS Verification Services	A
2024	ISTIA MARITIME CO.	9.10	8.09	+12%	1,887 of 3,089	ICS Verification Services	A
2023	not published	14.3	8.27	+73%	3,041 of 3,548	ICS Verification Services	A
2022	not published	9.91	8.71	+14%	2,456 of 3,968	Lloyd's Register	A
2020	not published	9.65	8.24	+17%	2,073 of 3,150	DNV	A
2019	not published	8.65	8.38	+3%	1,784 of 3,360	DNV	A
2018	not published	9.70	8.50	+14%	2,112 of 3,384	ABS	–

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.