Navalyze · Cruise · Ship

SILVER SPIRIT

IMO: 9437866
Type: Passenger ship (Cruise Passenger ship)
Port of registry: Nassau
Technical efficiency: EEXI 13.46 g CO₂/t·nm

ISM company (DoC holder) in 2025: Silversea SAM

Report year

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

187.6 kg/nm

Cruise median 263.6 kg/nm (−29%)

CO₂ per transport work (pax)

1,308

g CO₂/pax·nm · Cruise median 521 (+151%)

Average speed

12.8 kn

Cruise median 13.1 kn (−2%)

Fuel per day at sea

57.6 t/day

Fuel consumed

8,161 t

CO₂ emitted

25,918 t

26,319 t CO₂eq incl. CH₄ and N₂O

Distance sailed

43,504 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,402 h

142 days, 39% 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 187.6 kg/nm · median 263.6 (−29%)

89.6Ranks 57 of 202, lowest first415.6

Average speedThis ship 12.8 kn · median 13.1 (−2%)

10.8Faster than 41% of cruise ships15.5

CO₂ per transport work (pax)This ship 1,308.47 g CO₂/pax·nm · median 521.02 (+151%)

302.86Ranks 168 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 ports55%
From the EU11%
Into the EU15%
At berth in the EU18%

78% of this ship's CO₂ falls under the EU ETS (20,092 t).

Fuel burned laden

–

Not reported

CO₂ at berth

18.4%

Alongside in EU ports

Methane (CH₄)

0.4 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

SILVER SPIRIT
Cruise median

150.0200.0250.0300.0

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

Average speed, kn

SILVER SPIRIT
Cruise median

6.08.010.012.014.0

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

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

SILVER SPIRIT
Cruise median

5001,0001,5002,000

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	+0.1 kn	+8%	+9%	−10%	−14%	Same speed, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+1.4 kn	−8%	+3%	+78%	+39%	1.4 kn faster, fuel per mile down 8%; better than speed alone explains (hull, engine or trade).
2022→2023	+2.7 kn	+1%	+34%	−29%	−25%	2.7 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2021→2022	−1.3 kn	+18%	+2%	+157%	−19%	1.3 kn slower, fuel per mile up 18%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2021	−1.2 kn	−15%	−24%	−61%	+69%	1.2 kn slower, fuel per mile down 15%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+3.7 kn	−6%	+40%	+26%	−13%	3.7 kn faster, fuel per mile down 6%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Silversea SAM	8,161	25,918	43,504	3,402	12.8	187.6	–	–
2024	Silversea SAM	8,390	26,897	48,244	3,814	12.7	173.9	–	–
2023	not published	5,129	16,442	27,136	2,400	11.3	189.0	–	–
2022	not published	7,103	22,773	38,104	4,437	8.6	186.4	–	–
2021	not published	2,336	7,490	14,812	1,489	9.9	157.7	–	–
2019	not published	7,011	22,033	37,944	3,414	11.1	184.8	–	–
2018	not published	5,936	18,903	30,126	4,054	7.4	197.1	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/pax·nm	Cruise median	vs Cruise	Rank	Verifier	Methods
2025	Silversea SAM	1,308.47	521.02	+151%	168 of 202	DNV	C
2024	Silversea SAM	1,522.28	618.41	+146%	167 of 202	DNV	C
2023	not published	1,094.46	625.29	+75%	146 of 202	DNV	C
2022	not published	1,458.25	830.76	+76%	137 of 187	DNV	C
2021	not published	1,796.30	1,314.88	+37%	61 of 100	DNV	C
2019	not published	1,063.60	589.20	+81%	137 of 177	DNV	C
2018	not published	1,228.23	577.11	+113%	130 of 153	DNV	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.