Navalyze · Cruise · Ship

MARELLA EXPLORER

IMO: 9106297
Type: Passenger ship (Cruise Passenger ship)
Port of registry: Valletta

ISM company (DoC holder) in 2025: MARELLA CRUISES LIMITED

Report year

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

316.7 kg/nm

Cruise median 263.6 kg/nm (+20%)

CO₂ per transport work (pax)

521

g CO₂/pax·nm · Cruise median 521 (−0%)

Average speed

10.9 kn

Cruise median 13.1 kn (−17%)

Fuel per day at sea

82.7 t/day

Fuel consumed

16,406 t

CO₂ emitted

52,112 t

52,917 t CO₂eq incl. CH₄ and N₂O

Distance sailed

51,798 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,763 h

198 days, 54% 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 316.7 kg/nm · median 263.6 (+20%)

89.6Ranks 130 of 202, lowest first415.6

Average speedThis ship 10.9 kn · median 13.1 (−17%)

10.8Faster than 11% of cruise ships15.5

CO₂ per transport work (pax)This ship 520.92 g CO₂/pax·nm · median 521.02 (−0%)

302.86Ranks 101 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 ports65%
From the EU7%
Into the EU6%
At berth in the EU22%

6% of this ship's CO₂ falls under the EU ETS (3,324 t).

Fuel burned laden

71%

29% in ballast or unladen

CO₂ at berth

21.6%

Alongside in EU ports

Methane (CH₄)

0.8 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.015

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

MARELLA EXPLORER
Cruise median

200.0300.0400.0500.0

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

Average speed, kn

MARELLA EXPLORER
Cruise median

8.010.012.014.016.0

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

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

MARELLA EXPLORER
Cruise median

5001,0001,5002,000

’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	+0.0 kn	−7%	−7%	−4%	−8%	Same speed, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2023→2024	−2.3 kn	−9%	−24%	−2%	−11%	2.3 kn slower, fuel per mile down 9%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+1.3 kn	+6%	+18%	−1%	−11%	1.3 kn faster, fuel per mile up 6%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.4 kn	−9%	−12%	+265%	−62%	0.4 kn slower, fuel per mile down 9%; in line with the speed change.
2020→2021	+2.6 kn	−14%	+8%	+54%	+142%	2.6 kn faster, fuel per mile down 14%; better than speed alone explains (hull, engine or trade).
2019→2020	−3.8 kn	+13%	−19%	−79%	+12%	3.8 kn slower, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−1.5 kn	+17%	+6%	+106%	+27%	1.5 kn slower, fuel per mile up 17%; worse than speed alone explains (fouling, weather, loading or trade).

Part-year reports are left out of these comparisons. 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
2025part-year	MARELLA CRUISES LIMITED	15,120	48,030	47,473	4,340	10.9	318.5	–	77%
2025	V.Ships Leisure SAM	16,406	52,112	51,798	4,763	10.9	316.7	–	71%
2024	MARELLA CRUISES LIMITED	18,495	57,904	54,163	4,964	10.9	341.5	–	84%
2023	not published	20,680	64,773	55,328	4,205	13.2	373.8	–	82%
2022	not published	19,543	61,191	55,638	4,669	11.9	351.2	–	78%
2021	not published	5,882	18,475	15,226	1,239	12.3	386.3	–	75%
2020	not published	4,464	13,921	9,917	1,021	9.7	450.2	–	–
2019	not published	19,153	60,870	48,147	3,565	13.5	397.8	–	–
2018	not published	7,949	24,884	23,399	1,564	15.0	339.7	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/pax·nm	Cruise median	vs Cruise	Rank	Verifier	Methods
2025part-year	MARELLA CRUISES LIMITED	–	–	–	–	ABS	A+B
2025	V.Ships Leisure SAM	520.92	521.02	−0%	101 of 202	DNV	A+B
2024	MARELLA CRUISES LIMITED	563.83	686.09	−18%	5 of 17	ABS	A+B
2023	not published	637.06	625.29	+2%	103 of 202	ABS	A+B
2022	not published	713.07	830.76	−14%	78 of 187	ABS	B
2021	not published	1,853.87	1,314.88	+41%	64 of 100	ABS	B
2020	not published	766.22	1,168.55	−34%	39 of 100	ABS	B
2019	not published	683.37	589.20	+16%	104 of 177	ABS	B
2018	not published	537.54	577.11	−7%	74 of 153	ABS	B

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.