Navalyze · Container · Ship

MAERSK CONGO

IMO: 9525340
Type: Container ship
Average cargo carried: 25,194 t
Port of registry: Singapore
Technical efficiency: EEXI 10.20 g CO₂/t·nm

ISM company (DoC holder) in 2024: Maersk A/S · part of Maersk

Report year

2024 at a glance

From the 2024 THETIS-MRV report. Carries about 25,194 t of cargo on average.

Fuel per mile

139.7 kg/nm

Container median 167.2 kg/nm (−16%)

CO₂ per transport work (cargo)

17.27

g CO₂/t·nm · Container median 17.52 (−1%)

Average speed

11.0 kn

Container median 13.5 kn (−19%)

Fuel per day at sea

36.7 t/day

Fuel consumed

8,198 t

CO₂ emitted

25,535 t

25,937 t CO₂eq incl. CH₄ and N₂O

Distance sailed

58,687 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,355 h

223 days, 61% 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 139.7 kg/nm · median 167.2 (−16%)

78.9Ranks 797 of 1,974, lowest first301.6

Average speedThis ship 11.0 kn · median 13.5 (−19%)

9.6Faster than 19% of container ships16.1

CO₂ per transport work (cargo)This ship 17.27 g CO₂/t·nm · median 17.52 (−1%)

7.33Ranks 969 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 EU44%
Into the EU35%
At berth in the EU1%

60% of this ship's CO₂ falls under the EU ETS (15,410 t).

Fuel burned laden

99%

1% in ballast or unladen

CO₂ at berth

0.7%

Alongside in EU ports

Methane (CH₄)

0.4 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

MAERSK CONGO
Container median

120.0140.0160.0180.0200.0

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

Average speed, kn

MAERSK CONGO
Container median

10.011.012.013.014.015.0

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

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

MAERSK CONGO
Container median

0.020.040.060.0

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2023→2024	+0.2 kn	+8%	+10%	+132%	+41%	Same speed, fuel per mile up 8%; in line with the speed change.
2022→2023	−1.7 kn	−3%	−17%	−25%	+1%	1.7 kn slower, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+1.6 kn	−2%	+13%	+66%	−11%	1.6 kn faster, fuel per mile down 2%; better than speed alone explains (hull, engine or trade).
2020→2021	−2.0 kn	−28%	−39%	−1%	−4%	2.0 kn slower, fuel per mile down 28%; in line with the speed change.
2019→2020	−1.0 kn	+21%	+13%	+129%	−75%	1.0 kn slower, fuel per mile up 21%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.9 kn	+5%	−2%	+38%	+72%	0.9 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading 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
2024	Maersk A/S	8,198	25,535	58,687	5,355	11.0	139.7	17.27	99%
2023	not published	3,257	10,152	25,291	2,351	10.8	128.8	12.28	98%
2022	not published	4,495	14,005	33,734	2,700	12.5	133.2	12.18	99%
2021	not published	2,771	8,644	20,375	1,877	10.9	136.0	13.62	–
2020	not published	3,912	12,193	20,655	1,606	12.9	189.4	14.19	100%
2019	not published	1,410	4,411	9,021	650	13.9	156.3	57.41	100%
2018	not published	971	3,024	6,518	441	14.8	148.9	33.35	100%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2024	Maersk A/S	17.27	17.52	−1%	969 of 1,974	ABS	C
2023	not published	12.28	19.40	−37%	551 of 1,899	ABS	C
2022	not published	12.18	19.13	−36%	495 of 1,825	ABS	C
2021	not published	13.62	17.90	−24%	600 of 1,781	ABS	C
2020	not published	14.19	17.58	−19%	683 of 1,797	ABS	C
2019	not published	57.41	18.88	+204%	1,629 of 1,788	ABS	C
2018	not published	33.35	20.22	+65%	1,229 of 1,705	ABS	C

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.