Navalyze · Cruise · Ship

BRITANNIA

IMO: 9614036
Type: Passenger ship (Cruise Passenger ship)
Flag (estimated): Bermuda
Port of registry: Hamilton
Technical efficiency: EEXI 7.62 g CO₂/t·nm

ISM company (DoC holder) in 2025: Carnival Plc · part of Carnival Corporation

Report year

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm

459

Passenger median 266 kg/nm (+72%)

CO₂ per transport work (pax)

388

g CO₂/pax·nm · Passenger median 577 (−33%)

Average speed

15.5 kn

Passenger median 11.7 kn (+32%)

Fuel per day at sea

171.4 t/day

Fuel consumed

30,640 t

CO₂ emitted

95,901 t

Distance sailed

66,715 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,290 h

179 days, 49% 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 368 kg/nm · median 264 (+40%)

89.6Ranks 157 of 202, lowest first416

Average speedThis ship 15.0 kn · median 13.1 (+15%)

10.8Faster than 82% of cruise ships15.5

CO₂ per transport work (pax)This ship 308 g CO₂/pax·nm · median 521 (−41%)

303Ranks 24 of 202, lowest first1,701

Middle 80% of shipsMiddle 50%Cruise medianThis ship

Where the emissions happen, 2018

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 ports66%
From the EU9%
Into the EU16%
At berth in the EU10%

Fuel burned laden

–

Not reported

CO₂ at berth

9,513 t

9.9% 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

BRITANNIA
Cruise median

200.0300.0400.0500.0

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

Average speed, kn

BRITANNIA
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

BRITANNIA
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	−0.1 kn	−5%	−6%	+18%	−6%	Same speed, fuel per mile down 5%; in line with the speed change.
2023→2024	−0.1 kn	−6%	−7%	−9%	−9%	Same speed, fuel per mile down 6%; in line with the speed change.
2022→2023	+0.2 kn	−2%	−1%	−11%	−26%	Same speed, fuel per mile down 2%; in line with the speed change.
2021→2022	−0.6 kn	+8%	+4%	+450%	−17%	0.6 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+7.5 kn	−18%	+60%	+394%	+41%	7.5 kn faster, fuel per mile down 18%; better than speed alone explains (hull, engine or trade).
2019→2020	−7.3 kn	+3%	−46%	−96%	+7%	7.3 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.1 kn	−0%	−1%	−11%	−1%	Same speed, fuel per mile flat.

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	Carnival Plc	20,927	65,610	56,845	3,795	15.0	368	–	–
2024	Carnival Plc	18,671	58,531	48,193	3,186	15.1	387	–	–
2023	not published	21,804	68,374	52,760	3,465	15.2	413	–	–
2022	not published	25,114	78,561	59,504	3,955	15.0	422	–	–
2021	not published	4,226	13,316	10,815	691	15.6	391	–	–
2020	not published	1,038	3,252	2,188	271	8.1	474	–	–
2019	not published	27,315	85,586	59,556	3,855	15.4	459	–	–
2018	not published	30,640	95,901	66,715	4,290	15.5	459	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/pax·nm	Cruise median	vs Cruise	Rank	Verifier	Methods
2025	Carnival Plc	308	521	−41%	24 of 202	DNV	B+C
2024	Carnival Plc	328	618	−47%	26 of 202	DNV	B+C
2023	not published	359	625	−43%	27 of 202	DNV	B+C
2022	not published	482	831	−42%	26 of 187	Lloyd's Register	C
2021	not published	582	1,315	−56%	4 of 100	Lloyd's Register	C
2020	not published	413	1,169	−65%	14 of 100	Lloyd's Register	C
2019	not published	385	589	−35%	37 of 177	Lloyd's Register	C
2018	not published	388	577	−33%	29 of 153	Lloyd's Register	C

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.