Navalyze · Container · Ship

MAERSK DENVER

IMO: 9332999
Type: Container ship
Average cargo carried: 68,944 t
Flag (estimated): United States
Port of registry: Norfolk
Technical efficiency: EEDI 15.56 g CO₂/t·nm

ISM company (DoC holder) in 2025: Maersk Line, Limited-USA · part of Maersk

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 62,195 t of cargo on average.

Fuel kg/nm

210

Container median 172 kg/nm (+22%)

CO₂ per transport work (cargo)

10.5

g CO₂/t·nm · Container median 17.6 (−40%)

Average speed

16.5 kn

Container median 14.0 kn (+18%)

Fuel per day at sea

83.5 t/day

Fuel consumed

11,833 t

CO₂ emitted

36,859 t

Distance sailed

56,227 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,400 h

142 days, 39% 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 261 kg/nm · median 177 (+48%)

78.8Ranks 1,747 of 2,208, lowest first302

Average speedThis ship 17.0 kn · median 13.3 (+28%)

9.1Faster than 97% of container ships16.0

CO₂ per transport work (cargo)This ship 11.8 g CO₂/t·nm · median 16.3 (−27%)

7.22Ranks 773 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 ports0%
From the EU41%
Into the EU59%
At berth in the EU1%

Fuel burned laden

11,833 t

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

CO₂ at berth

221 t

0.6% 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

MAERSK DENVER
Container median

150.0175.0200.0225.0250.0275.0

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

Average speed, kn

MAERSK DENVER
Container median

12.014.016.018.0

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

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

MAERSK DENVER
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	−0.3 kn	+19%	+17%	−94%	+6%	0.3 kn slower, fuel per mile up 19%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+1.4 kn	+14%	+24%	+61%	+16%	1.4 kn faster, fuel per mile up 14%; in line with the speed change.
2022→2023	−0.9 kn	−7%	−12%	+15%	−1%	0.9 kn slower, fuel per mile down 7%; in line with the speed change.
2021→2022	+0.5 kn	+0%	+3%	−20%	−4%	0.5 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2020→2021	−0.2 kn	−2%	−3%	+12%	−3%	Same speed, fuel per mile flat.
2019→2020	+0.4 kn	+2%	+4%	+4%	+6%	0.4 kn faster, fuel per mile flat.
2018→2019	−1.8 kn	−3%	−12%	−13%	−2%	1.8 kn slower, fuel per mile down 3%; 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 Line, Limited-USA	1,379	4,300	5,276	310	17.0	261	11.8	100%
2024	Maersk Line Ltd-USA	20,452	63,698	93,497	5,392	17.3	219	11.2	100%
2023	not published	11,164	34,770	58,203	3,661	15.9	192	9.66	99%
2022	not published	10,465	32,595	50,512	3,008	16.8	207	9.77	99%
2021	not published	13,044	40,630	63,251	3,881	16.3	206	10.2	–
2020	not published	11,833	36,859	56,227	3,400	16.5	210	10.5	100%
2019	not published	11,186	34,840	54,125	3,357	16.1	207	9.94	100%
2018	not published	13,162	41,015	61,884	3,466	17.9	213	10.1	100%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	Maersk Line, Limited-USA	11.8	16.3	−27%	773 of 2,208	ABS	C
2024	Maersk Line Ltd-USA	11.2	17.5	−36%	541 of 1,974	ABS	C
2023	not published	9.66	19.4	−50%	363 of 1,899	ABS	C
2022	not published	9.77	19.1	−49%	305 of 1,825	ABS	C
2021	not published	10.2	17.9	−43%	335 of 1,781	ABS	C
2020	not published	10.5	17.6	−40%	420 of 1,797	ABS	C
2019	not published	9.94	18.9	−47%	315 of 1,788	ABS	C
2018	not published	10.1	20.2	−50%	268 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.