Navalyze · Cruise · Ship

COSTA DELIZIOSA

IMO: 9398917
Type: Passenger ship (Cruise Passenger ship)
Flag (estimated): Italy
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

2021 at a glance

From the 2021 THETIS-MRV report.

Fuel kg/nm

409

Passenger median 267 kg/nm (+53%)

CO₂ per transport work (pax)

1,315

g CO₂/pax·nm · Passenger median 1,315 (−0%)

Average speed

13.6 kn

Passenger median 11.4 kn (+19%)

Fuel per day at sea

133.4 t/day

Fuel consumed

20,097 t

CO₂ emitted

63,106 t

Distance sailed

49,130 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,614 h

151 days, 41% 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 kg/nmThis ship 287 kg/nm · median 264 (+9%)

89.6Ranks 114 of 202, lowest first416

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 g CO₂/pax·nm · median 521 (−29%)

303Ranks 60 of 202, lowest first1,701

Middle 80% of shipsMiddle 50%Cruise medianThis ship

Where the emissions happen, 2021

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 ports74%
From the EU4%
Into the EU0%
At berth in the EU22%

Fuel burned laden

–

Not reported

CO₂ at berth

13,820 t

21.9% 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 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 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	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Costa Crociere S.p.A.	17,726	55,739	61,744	4,075	15.2	287	–	–
2024	Costa Crociere S.p.A.	19,072	59,777	58,631	3,764	15.6	325	–	–
2023	not published	22,319	69,812	70,686	4,535	15.6	316	–	–
2022	not published	24,694	77,425	75,419	4,624	16.3	327	–	–
2021	not published	20,097	63,106	49,130	3,614	13.6	409	–	–
2020	not published	11,378	36,007	25,781	1,794	14.4	441	–	–
2019	not published	27,324	85,273	81,185	4,973	16.3	337	–	–
2018	not published	25,536	79,635	78,903	6,687	11.8	324	–	–

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	521	−29%	60 of 202	DNV	B
2024	Costa Crociere S.p.A.	444	618	−28%	68 of 202	DNV	B
2023	not published	431	625	−31%	59 of 202	DNV	B
2022	not published	645	831	−22%	62 of 187	RINA	A
2021	not published	1,315	1,315	−0%	50 of 100	RINA	A
2020	not published	36.5	1,169	−97%	2 of 100	RINA	A
2019	not published	397	589	−33%	42 of 177	RINA	A
2018	not published	404	577	−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.