Navalyze · Bulk carrier · Ship

ETNA

IMO: 9393618
Type: Bulk carrier
Average cargo carried: 21,980 t
Flag (estimated): Turkiye
Port of registry: Izmir
Technical efficiency: EEXI 4.48 g CO₂/t·nm
Former names: SANTORINI ISLAND

ISM company (DoC holder) in 2025: GULNAK DENIZCILIK NAKLIYAT VE TICARET ANONIM SIRKETI

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 21,980 t of cargo on average.

Fuel kg/nm

68.0

Bulk carrier median 82.6 kg/nm (−18%)

CO₂ per transport work (cargo)

9.78

g CO₂/t·nm · Bulk carrier median 7.90 (+24%)

Average speed

9.3 kn

Bulk carrier median 10.7 kn (−13%)

Fuel per day at sea

15.2 t/day

Fuel consumed

1,654 t

CO₂ emitted

5,229 t

5,310 t CO₂eq incl. CH₄ and N₂O

Distance sailed

24,327 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,607 h

109 days, 30% 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 68.0 kg/nm · median 82.6 (−18%)

61.0Ranks 747 of 3,611, lowest first114

Average speedThis ship 9.3 kn · median 10.7 (−13%)

8.8Faster than 15% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 9.78 g CO₂/t·nm · median 7.90 (+24%)

4.80Ranks 2,506 of 3,611, lowest first15.9

Middle 80% of shipsMiddle 50%Bulk carrier medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's emissions 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 ports1%
From the EU38%
Into the EU57%
At berth in the EU4%

52% of this ship's CO₂ falls under the EU ETS (2,738 t).

Fuel burned laden

63 t

4% of all fuel; 96% in ballast or unladen

CO₂ at berth

211 t

4.0% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+81 t

+1.5% CO₂eq on top of CO₂ alone, 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 kg/nm

ETNA
Bulk carrier median

60.070.080.090.0100.0110.0

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

Average speed, kn

ETNA
Bulk carrier median

6.08.010.012.0

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

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

ETNA
Bulk carrier median

6.08.010.012.014.016.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.4 kn	−32%	−29%	+8%	−17%	0.4 kn faster, fuel per mile down 32%; better than speed alone explains (hull, engine or trade).
2023→2024	+0.9 kn	+1%	+13%	+48%	−20%	0.9 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023	−2.5 kn	+12%	−15%	−19%	+9%	2.5 kn slower, fuel per mile up 12%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2022	+1.7 kn	+42%	+69%	+98%	+26%	1.7 kn faster, fuel per mile up 42%; in line with the speed change.
2019→2020	+2.3 kn	−35%	−12%	+387%	–	2.3 kn faster, fuel per mile down 35%; better than speed alone explains (hull, engine or trade).
2018→2019	−4.3 kn	+3%	−38%	−90%	–	4.3 kn slower, fuel per mile up 3%; 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	GULNAK DENIZCILIK NAKLIYAT VE TICARET ANONIM SIRKETI	1,654	5,229	24,327	2,607	9.3	68.0	9.78	4%
2024	GULNAK DENIZCILIK NAKLIYAT VE TICARET ANONIM SIRKETI	2,259	7,092	22,566	2,526	8.9	100	11.8	–
2023	not published	1,521	4,804	15,265	1,907	8.0	99.6	14.7	–
2022	not published	1,687	5,339	18,892	1,801	10.5	89.3	13.5	–
2020	not published	601	1,905	9,527	1,088	8.8	63.1	10.7	–
2019	not published	191	607	1,957	302	6.5	97.5	–	–
2018	not published	1,942	6,089	20,502	1,894	10.8	94.7	8.44	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	GULNAK DENIZCILIK NAKLIYAT VE TICARET ANONIM SIRKETI	9.78	7.90	+24%	2,506 of 3,611	Verifavia	B
2024	GULNAK DENIZCILIK NAKLIYAT VE TICARET ANONIM SIRKETI	11.8	8.09	+45%	2,474 of 3,089	Verifavia	B
2023	not published	14.7	8.27	+78%	3,069 of 3,548	EMICERT	A
2022	not published	13.5	8.71	+55%	3,242 of 3,968	EMICERT	A
2020	not published	10.7	8.24	+30%	2,318 of 3,150	EMICERT	A
2019	not published	–	–	–	–	EMICERT	A
2018	not published	8.44	8.50	−1%	1,668 of 3,384	EMICERT	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.