Navalyze · Container · Ship

MAREN MAERSK

IMO: 9632129
Type: Container ship
Average cargo carried: 143,498 t
Flag (estimated): Denmark
Port of registry: Ringkobing
Technical efficiency: EEXI 6.77 g CO₂/t·nm

ISM company (DoC holder) in 2025: Maersk A/S · part of Maersk

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 172,438 t of cargo on average.

Fuel kg/nm

331

Container median 172 kg/nm (+92%)

CO₂ per transport work (cargo)

5.89

g CO₂/t·nm · Container median 17.6 (−66%)

Average speed

16.4 kn

Container median 14.0 kn (+17%)

Fuel per day at sea

130.1 t/day

Fuel consumed

15,981 t

CO₂ emitted

49,077 t

Distance sailed

48,321 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,947 h

123 days, 34% of the year

Within the container fleet, 2025

Set against all 2,208 container 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 304 kg/nm · median 177 (+72%)

78.8Ranks 1,994 of 2,208, lowest first302

Average speedThis ship 15.5 kn · median 13.3 (+17%)

9.1Faster than 83% of container ships16.0

CO₂ per transport work (cargo)This ship 6.60 g CO₂/t·nm · median 16.3 (−60%)

7.22Ranks 135 of 2,208, lowest first46.9

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2020

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 ports7%
From the EU16%
Into the EU74%
At berth in the EU3%

Fuel burned laden

15,981 t

100% of all fuel; 0% in ballast or unladen

CO₂ at berth

1,482 t

3.0% 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

MAREN MAERSK
Container median

150.0200.0250.0300.0350.0

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

Average speed, kn

MAREN MAERSK
Container median

13.014.015.016.017.018.0

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

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

MAREN MAERSK
Container median

5.010.015.020.025.0

’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	−1.1 kn	−13%	−18%	−10%	+4%	1.1 kn slower, fuel per mile down 13%; in line with the speed change.
2023→2024	+1.7 kn	+10%	+22%	+51%	+10%	1.7 kn faster, fuel per mile up 10%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.5 kn	+8%	+11%	−9%	+6%	0.5 kn faster, fuel per mile up 8%; in line with the speed change.
2021→2022	−0.9 kn	−3%	−9%	−9%	+3%	0.9 kn slower, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−1.1 kn	−7%	−13%	+5%	−11%	1.1 kn slower, fuel per mile down 7%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+0.7 kn	+7%	+12%	+14%	−3%	0.7 kn faster, fuel per mile up 7%; in line with the speed change.
2018→2019	−1.5 kn	−10%	−18%	−25%	−22%	1.5 kn slower, fuel per mile down 10%; 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Maersk A/S	17,321	53,967	56,982	3,676	15.5	304	6.60	98%
2024	Maersk A/S	22,177	69,100	63,532	3,837	16.6	349	6.32	94%
2023	not published	13,367	41,724	41,968	2,824	14.9	319	5.74	97%
2022	not published	13,594	43,414	46,028	3,191	14.4	295	5.44	96%
2021	not published	15,470	48,287	50,533	3,294	15.3	306	5.27	–
2020	not published	15,981	49,077	48,321	2,947	16.4	331	5.89	100%
2019	not published	13,063	40,679	42,374	2,691	15.7	308	6.06	100%
2018	not published	19,407	60,744	56,635	3,293	17.2	343	7.77	100%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	Maersk A/S	6.60	16.3	−60%	135 of 2,208	ABS	C
2024	Maersk A/S	6.32	17.5	−64%	95 of 1,974	ABS	C
2023	not published	5.74	19.4	−70%	32 of 1,899	ABS	C
2022	not published	5.44	19.1	−72%	13 of 1,825	ABS	C
2021	not published	5.27	17.9	−71%	12 of 1,781	ABS	C
2020	not published	5.89	17.6	−66%	56 of 1,797	ABS	C
2019	not published	6.06	18.9	−68%	41 of 1,788	ABS	C
2018	not published	7.77	20.2	−62%	119 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.