Navalyze · Cruise · Ship

MARELLA EXPLORER

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

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

Report year

2019 at a glance

From the 2019 THETIS-MRV report.

Fuel kg/nm

398

Passenger median 277 kg/nm (+44%)

CO₂ per transport work (pax)

683

g CO₂/pax·nm · Passenger median 589 (+16%)

Average speed

13.5 kn

Passenger median 12.9 kn (+5%)

Fuel per day at sea

128.9 t/day

Fuel consumed

19,153 t

CO₂ emitted

60,870 t

Distance sailed

48,147 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,565 h

149 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 317 kg/nm · median 264 (+20%)

89.6Ranks 130 of 202, lowest first416

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 521 g CO₂/pax·nm · median 521 (−0%)

303Ranks 101 of 202, lowest first1,701

Middle 80% of shipsMiddle 50%Cruise medianThis ship

Where the emissions happen, 2019

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 ports79%
From the EU3%
Into the EU6%
At berth in the EU11%

Fuel burned laden

–

Not reported

CO₂ at berth

6,945 t

11.4% 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 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

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	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025part-year	MARELLA CRUISES LIMITED	15,120	48,030	47,473	4,340	10.9	319	–	77%
2025	V.Ships Leisure SAM	16,406	52,112	51,798	4,763	10.9	317	–	71%
2024	MARELLA CRUISES LIMITED	18,495	57,904	54,163	4,964	10.9	342	–	84%
2023	not published	20,680	64,773	55,328	4,205	13.2	374	–	82%
2022	not published	19,543	61,191	55,638	4,669	11.9	351	–	78%
2021	not published	5,882	18,475	15,226	1,239	12.3	386	–	75%
2020	not published	4,464	13,921	9,917	1,021	9.7	450	–	–
2019	not published	19,153	60,870	48,147	3,565	13.5	398	–	–
2018	not published	7,949	24,884	23,399	1,564	15.0	340	–	–

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	521	521	−0%	101 of 202	DNV	A+B
2024	MARELLA CRUISES LIMITED	564	686	−18%	5 of 17	ABS	A+B
2023	not published	637	625	+2%	103 of 202	ABS	A+B
2022	not published	713	831	−14%	78 of 187	ABS	B
2021	not published	1,854	1,315	+41%	64 of 100	ABS	B
2020	not published	766	1,169	−34%	39 of 100	ABS	B
2019	not published	683	589	+16%	104 of 177	ABS	B
2018	not published	538	577	−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.