Navalyze · Cruise · Ship

COSTA DELIZIOSA

IMO: 9398917
Type: Passenger ship (Cruise Passenger ship)
Port of registry: Genoa
Technical efficiency: EEXI 10.30 g CO₂/t·nm

ISM company (DoC holder) in 2025: Costa Crociere S.p.A. · part of Carnival Corporation

Report year

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

287.1 kg/nm

Cruise median 263.6 kg/nm (+9%)

CO₂ per transport work (pax)

371

g CO₂/pax·nm · Cruise median 521 (−29%)

Average speed

15.2 kn

Cruise median 13.1 kn (+16%)

Fuel per day at sea

104.4 t/day

Fuel consumed

17,726 t

CO₂ emitted

55,739 t

56,610 t CO₂eq incl. CH₄ and N₂O

Distance sailed

61,744 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,075 h

170 days, 47% of the year

Within the cruise fleet, 2025

Set against all 202 cruise 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 287.1 kg/nm · median 263.6 (+9%)

89.6Ranks 114 of 202, lowest first415.6

Average speedThis ship 15.2 kn · median 13.1 (+16%)

10.8Faster than 84% of cruise ships15.5

CO₂ per transport work (pax)This ship 371.00 g CO₂/pax·nm · median 521.02 (−29%)

302.86Ranks 60 of 202, lowest first1,700.54

Middle 80% of shipsMiddle 50%Cruise 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 ports72%
From the EU9%
Into the EU6%
At berth in the EU14%

92% of this ship's CO₂ falls under the EU ETS (51,140 t).

Fuel burned laden

–

Not reported

CO₂ at berth

14.3%

Alongside in EU ports

Methane (CH₄)

0.9 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 Cruise median is the middle ship of all cruise ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

COSTA DELIZIOSA
Cruise median

200.0250.0300.0350.0400.0450.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

COSTA DELIZIOSA
Cruise median

10.012.014.016.018.0

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (pax), g CO₂/pax·nm

COSTA DELIZIOSA
Cruise median

0.05001,0001,500

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−0.4 kn	−12%	−14%	+5%	−16%	0.4 kn slower, fuel per mile down 12%; better than speed alone explains (hull, engine or trade).
2023→2024	+0.0 kn	+3%	+3%	−17%	+3%	Same speed, fuel per mile up 3%; in line with the speed change.
2022→2023	−0.7 kn	−4%	−8%	−6%	−33%	0.7 kn slower, fuel per mile down 4%; in line with the speed change.
2021→2022	+2.7 kn	−20%	−4%	+54%	−51%	2.7 kn faster, fuel per mile down 20%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.8 kn	−7%	−12%	+91%	+3,501%	0.8 kn slower, fuel per mile down 7%; in line with the speed change.
2019→2020	−1.9 kn	+31%	+15%	−68%	−91%	1.9 kn slower, fuel per mile up 31%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+4.5 kn	+4%	+44%	+3%	−2%	4.5 kn faster, fuel per mile up 4%; 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	Costa Crociere S.p.A.	17,726	55,739	61,744	4,075	15.2	287.1	–	–
2024	Costa Crociere S.p.A.	19,072	59,777	58,631	3,764	15.6	325.3	–	–
2023	not published	22,319	69,812	70,686	4,535	15.6	315.7	–	–
2022	not published	24,694	77,425	75,419	4,624	16.3	327.4	–	–
2021	not published	20,097	63,106	49,130	3,614	13.6	409.1	–	–
2020	not published	11,378	36,007	25,781	1,794	14.4	441.4	–	–
2019	not published	27,324	85,273	81,185	4,973	16.3	336.6	–	–
2018	not published	25,536	79,635	78,903	6,687	11.8	323.6	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/pax·nm	Cruise median	vs Cruise	Rank	Verifier	Methods
2025	Costa Crociere S.p.A.	371.00	521.02	−29%	60 of 202	DNV	B
2024	Costa Crociere S.p.A.	443.95	618.41	−28%	68 of 202	DNV	B
2023	not published	431.34	625.29	−31%	59 of 202	DNV	B
2022	not published	645.43	830.76	−22%	62 of 187	RINA	A
2021	not published	1,314.76	1,314.88	−0%	50 of 100	RINA	A
2020	not published	36.51	1,168.55	−97%	2 of 100	RINA	A
2019	not published	396.57	589.20	−33%	42 of 177	RINA	A
2018	not published	404.09	577.11	−30%	33 of 153	RINA	–

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Cruise ships are benchmarked on CO₂ per transport work (pax) (TW), in g CO₂/pax·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 cruise 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.