Navalyze · Container · Ship

KARLSKRONA

IMO: 9085558
Type: Container ship
Average cargo carried: 49,228 t
Port of registry: Monrovia
Technical efficiency: EEXI 11.30 g CO₂/t·nm
Former names: MAERSK KARLSKRONA

ISM company (DoC holder) in 2024: Selden Marine Co

Report year

2024 at a glance

From the 2024 THETIS-MRV report. Carries about 49,228 t of cargo on average.

Fuel per mile

228.6 kg/nm

Container median 167.2 kg/nm (+37%)

CO₂ per transport work (cargo)

14.50

g CO₂/t·nm · Container median 17.52 (−17%)

Average speed

14.4 kn

Container median 13.5 kn (+7%)

Fuel per day at sea

79.0 t/day

Fuel consumed

6,033 t

CO₂ emitted

18,840 t

19,137 t CO₂eq incl. CH₄ and N₂O

Distance sailed

26,394 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,834 h

76 days, 21% 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 per mileThis ship 228.6 kg/nm · median 167.2 (+37%)

78.9Ranks 1,330 of 1,974, lowest first301.6

Average speedThis ship 14.4 kn · median 13.5 (+7%)

9.6Faster than 65% of container ships16.1

CO₂ per transport work (cargo)This ship 14.50 g CO₂/t·nm · median 17.52 (−17%)

7.33Ranks 790 of 1,974, lowest first51.62

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2024

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 ports20%
From the EU33%
Into the EU45%
At berth in the EU2%

61% of this ship's CO₂ falls under the EU ETS (11,510 t).

Fuel burned laden

98%

2% in ballast or unladen

CO₂ at berth

2.4%

Alongside in EU ports

Methane (CH₄)

0.3 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift from CH₄ and N₂O, counted in full from 2026

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 per mile, kg/nm

KARLSKRONA
Container median

150.0200.0250.0300.0

’192019’202020’212021’222022’232023’242024

Average speed, kn

KARLSKRONA
Container median

12.014.016.018.0

’192019’202020’212021’222022’232023’242024

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

KARLSKRONA
Container median

12.014.016.018.020.0

’192019’202020’212021’222022’232023’242024

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2023→2024	−0.1 kn	−4%	−5%	+9%	+19%	Same speed, fuel per mile down 4%; in line with the speed change.
2022→2023	−1.1 kn	−4%	−11%	−29%	−9%	1.1 kn slower, fuel per mile down 4%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−1.8 kn	−11%	−20%	−42%	−16%	1.8 kn slower, fuel per mile down 11%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+1.7 kn	+3%	+15%	+109%	+3%	1.7 kn faster, fuel per mile up 3%; better than speed alone explains (hull, engine or trade).
2019→2020	+0.1 kn	−3%	−2%	+33%	+5%	Same speed, fuel per mile down 3%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2024	Selden Marine Co	6,033	18,840	26,394	1,834	14.4	228.6	14.50	98%
2023	not published	5,744	17,915	24,162	1,665	14.5	237.7	12.19	–
2022	not published	8,449	26,425	34,026	2,185	15.6	248.3	13.35	–
2021	not published	16,292	50,888	58,432	3,356	17.4	278.8	15.85	–
2020	not published	7,534	23,625	27,966	1,780	15.7	269.4	15.41	–
2019	not published	5,834	18,197	21,040	1,347	15.6	277.3	14.61	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2024	Selden Marine Co	14.50	17.52	−17%	790 of 1,974	ABS	B
2023	not published	12.19	19.40	−37%	547 of 1,899	Lloyd's Register	B
2022	not published	13.35	19.13	−30%	584 of 1,825	Lloyd's Register	B
2021	not published	15.85	17.90	−11%	766 of 1,781	Lloyd's Register	B
2020	not published	15.41	17.58	−12%	758 of 1,797	Lloyd's Register	B
2019	not published	14.61	18.88	−23%	619 of 1,788	Lloyd's Register	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.