Navalyze · Container · Ship

THESEUS

IMO: 9728954
Type: Container ship
Average cargo carried: 100,710 t
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEXI 8.35 g CO₂/t·nm

ISM company (DoC holder) in 2024: COSTAMARE SHIPPING COMPANY S.A

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 106,533 t of cargo on average.

Fuel kg/nm

308

Container median 186 kg/nm (+66%)

CO₂ per transport work (cargo)

9.02

g CO₂/t·nm · Container median 17.9 (−50%)

Average speed

15.9 kn

Container median 14.1 kn (+13%)

Fuel per day at sea

117.3 t/day

Fuel consumed

16,482 t

CO₂ emitted

51,446 t

Distance sailed

53,538 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,371 h

140 days, 38% of the year

Within the container fleet, 2024

Set against all 1,974 container ships with a full-year 2024 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 269 kg/nm · median 167 (+61%)

78.9Ranks 1,579 of 1,974, lowest first302

Average speedThis ship 16.8 kn · median 13.5 (+24%)

9.6Faster than 96% of container ships16.1

CO₂ per transport work (cargo)This ship 8.32 g CO₂/t·nm · median 17.5 (−53%)

7.33Ranks 302 of 1,974, lowest first51.6

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2021

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 ports31%
From the EU36%
Into the EU31%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

1,075 t

2.1% 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 Container median is the middle ship of all container ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

THESEUS
Container median

150.0200.0250.0300.0350.0

’182018’202020’212021’222022’232023’242024

Average speed, kn

THESEUS
Container median

12.014.016.018.0

’182018’202020’212021’222022’232023’242024

CO₂ per transport work (cargo), g CO₂/t·nm

THESEUS
Container median

5.010.015.020.025.0

’182018’202020’212021’222022’232023’242024

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2023→2024	+4.0 kn	+21%	+60%	+717%	+29%	4.0 kn faster, fuel per mile up 21%; better than speed alone explains (hull, engine or trade).
2022→2023	−2.0 kn	−20%	−31%	−83%	−23%	2.0 kn slower, fuel per mile down 20%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−1.1 kn	−10%	−16%	−5%	−8%	1.1 kn slower, fuel per mile down 10%; in line with the speed change.
2020→2021	−1.8 kn	−1%	−11%	+92%	−2%	1.8 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2020	+1.2 kn	+12%	+20%	−42%	+16%	1.2 kn faster, fuel per mile up 12%; in line with the speed change.

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
2024	COSTAMARE SHIPPING COMPANY S.A	18,931	59,045	70,467	4,191	16.8	269	8.32	–
2023	not published	1,908	5,969	8,628	676	12.8	221	6.43	–
2022	not published	14,046	43,860	50,770	3,425	14.8	277	8.34	–
2021	not published	16,482	51,446	53,538	3,371	15.9	308	9.02	–
2020	not published	8,669	27,142	27,851	1,578	17.7	311	9.23	–
2018	not published	13,307	41,510	48,045	2,912	16.5	277	7.96	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2024	COSTAMARE SHIPPING COMPANY S.A	8.32	17.5	−53%	302 of 1,974	DNV	B
2023	not published	6.43	19.4	−67%	101 of 1,899	DNV	B
2022	not published	8.34	19.1	−56%	226 of 1,825	DNV	B
2021	not published	9.02	17.9	−50%	249 of 1,781	DNV	B
2020	not published	9.23	17.6	−47%	320 of 1,797	DNV	B
2018	not published	7.96	20.2	−61%	135 of 1,705	DNV	B

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Container ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·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 container 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.