Navalyze · Cruise · Ship

CELEBRITY SILHOUETTE

IMO: 9451094
Type: Passenger ship (Cruise Passenger ship)
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEXI 9.24 g CO₂/t·nm

ISM company (DoC holder) in 2025: RCL Cruises Ltd · part of Royal Caribbean Group

Report year

2023 at a glance

From the 2023 THETIS-MRV report.

Fuel kg/nm

390

Passenger median 270 kg/nm (+44%)

CO₂ per transport work (pax)

459

g CO₂/pax·nm · Passenger median 625 (−27%)

Average speed

17.1 kn

Passenger median 13.7 kn (+25%)

Fuel per day at sea

159.7 t/day

Fuel consumed

20,696 t

CO₂ emitted

64,715 t

Distance sailed

53,065 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,110 h

130 days, 36% 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 374 kg/nm · median 264 (+42%)

89.6Ranks 161 of 202, lowest first416

Average speedThis ship 13.0 kn · median 13.1 (−1%)

10.8Faster than 47% of cruise ships15.5

CO₂ per transport work (pax)This ship 409 g CO₂/pax·nm · median 521 (−22%)

303Ranks 68 of 202, lowest first1,701

Middle 80% of shipsMiddle 50%Cruise medianThis ship

Where the emissions happen, 2023

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 ports44%
From the EU19%
Into the EU28%
At berth in the EU9%

Fuel burned laden

–

Not reported

CO₂ at berth

6,077 t

9.4% 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

CELEBRITY SILHOUETTE
Cruise median

200.0300.0400.0500.0

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

Average speed, kn

CELEBRITY SILHOUETTE
Cruise median

10.012.014.016.018.0

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

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

CELEBRITY SILHOUETTE
Cruise median

0.02,0004,0006,000

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−2.1 kn	−8%	−20%	−84%	−9%	2.1 kn slower, fuel per mile down 8%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−2.0 kn	+4%	−8%	−13%	−2%	2.0 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2023	+0.9 kn	−17%	−13%	+570%	−91%	0.9 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2019→2020	+3.3 kn	+18%	+48%	−87%	+1,094%	3.3 kn faster, fuel per mile up 18%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.6 kn	−1%	+4%	+0%	−1%	0.6 kn faster, fuel per mile flat; better than speed alone explains (hull, engine 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	RCL Cruises Ltd	2,790	8,925	7,454	572	13.0	374	–	–
2025	Celebrity Cruises, Inc.	2,790	8,925	7,454	572	13.0	374	–	–
2024	RCL Cruises Ltd	18,620	57,930	45,975	3,055	15.1	405	–	–
2023	not published	20,696	64,715	53,065	3,110	17.1	390	–	–
2020	not published	3,719	11,905	7,915	488	16.2	470	–	–
2019	not published	24,793	77,996	62,020	4,814	12.9	400	–	–
2018	not published	24,852	77,811	61,733	5,006	12.3	403	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/pax·nm	Cruise median	vs Cruise	Rank	Verifier	Methods
2025part-year	RCL Cruises Ltd	–	–	–	–	DNV	A
2025	Celebrity Cruises, Inc.	409	521	−22%	68 of 202	DNV	A
2024	RCL Cruises Ltd	451	618	−27%	70 of 202	DNV	A
2023	not published	459	625	−27%	68 of 202	DNV	A
2020	not published	5,127	1,169	+339%	75 of 100	DNV	A
2019	not published	429	589	−27%	54 of 177	DNV	A
2018	not published	434	577	−25%	42 of 153	DNV	A

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.