Navalyze · Container · Ship

ALEXANDER

IMO: 9347798
Type: Container ship
Average cargo carried: 5,505 t
Flag (estimated): Antigua and Barbuda
Port of registry: St. John'S
Technical efficiency: EEXI 24.54 g CO₂/t·nm
Former names: JSP SKIRNER, NCL IKORNNES

ISM company (DoC holder) in 2025: Schiffahrts UG (haftungsbeschraenkt) & Co. KG MS ”Alexander“

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 4,083 t of cargo on average.

Fuel kg/nm

90.3

Container median 165 kg/nm (−45%)

CO₂ per transport work (cargo)

70.7

g CO₂/t·nm · Container median 19.4 (+264%)

Average speed

12.4 kn

Container median 13.2 kn (−6%)

Fuel per day at sea

26.9 t/day

Fuel consumed

3,991 t

CO₂ emitted

12,758 t

Distance sailed

44,215 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,563 h

148 days, 41% 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 92.7 kg/nm · median 177 (−48%)

78.8Ranks 446 of 2,208, lowest first302

Average speedThis ship 12.6 kn · median 13.3 (−5%)

9.1Faster than 39% of container ships16.0

CO₂ per transport work (cargo)This ship 53.9 g CO₂/t·nm · median 16.3 (+231%)

7.22Ranks 2,067 of 2,208, lowest first46.9

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2023

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 ports84%
From the EU0%
Into the EU3%
At berth in the EU12%

Fuel burned laden

–

Not reported

CO₂ at berth

1,548 t

12.1% 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

ALEXANDER
Container median

75.0100.0125.0150.0175.0200.0

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

Average speed, kn

ALEXANDER
Container median

0.05.010.015.0

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

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

ALEXANDER
Container median

0.020.040.060.080.0100

’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	+0.4 kn	+7%	+10%	−73%	−1%	0.4 kn faster, fuel per mile up 7%; in line with the speed change.
2023→2024	−0.2 kn	−4%	−6%	+44%	−23%	Same speed, fuel per mile down 4%; in line with the speed change.
2022→2023	+0.1 kn	−1%	+0%	+48%	+40%	Same speed, fuel per mile flat.
2021→2022	+0.8 kn	−6%	+0%	−27%	−18%	0.8 kn faster, fuel per mile down 6%; better than speed alone explains (hull, engine or trade).
2020→2021	+1.6 kn	+10%	+28%	+270%	+52%	1.6 kn faster, fuel per mile up 10%; better than speed alone explains (hull, engine or trade).
2019→2020	+4.0 kn	−14%	+45%	−59%	−34%	4.0 kn faster, fuel per mile down 14%; better than speed alone explains (hull, engine or trade).
2018→2019	+3.7 kn	−16%	+123%	+102%	−33%	3.7 kn faster, fuel per mile down 16%; better than speed alone explains (hull, engine 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	Schiffahrts UG (haftungsbeschraenkt) & Co. KG MS ”Alexander“	1,587	5,082	17,116	1,359	12.6	92.7	53.9	13%
2024	MS "JSP SKIRNER" Schifffahrts UG (haft.) & Co. KG	5,527	17,643	63,824	5,223	12.2	86.6	54.6	–
2023	not published	3,991	12,758	44,215	3,563	12.4	90.3	70.7	–
2022	not published	2,709	8,575	29,824	2,429	12.3	90.8	50.6	–
2021	not published	3,965	12,490	41,013	3,570	11.5	96.7	61.4	–
2020	not published	974	3,036	11,097	1,121	9.9	87.7	40.3	–
2019	not published	2,734	8,540	26,950	4,580	5.9	101	60.8	–
2018	not published	1,605	5,017	13,321	6,052	2.2	121	91.1	100%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	Schiffahrts UG (haftungsbeschraenkt) & Co. KG MS ”Alexander“	53.9	16.3	+231%	2,067 of 2,208	RINA	A
2024	MS "JSP SKIRNER" Schifffahrts UG (haft.) & Co. KG	54.6	17.5	+212%	1,816 of 1,974	Swiss Climate	A
2023	not published	70.7	19.4	+264%	1,846 of 1,899	Swiss Climate	A
2022	not published	50.6	19.1	+164%	1,621 of 1,825	Swiss Climate	A
2021	not published	61.4	17.9	+243%	1,688 of 1,781	Swiss Climate	A
2020	not published	40.3	17.6	+129%	1,477 of 1,797	Bureau Veritas	A
2019	not published	60.8	18.9	+222%	1,663 of 1,788	Bureau Veritas	A
2018	not published	91.1	20.2	+350%	1,674 of 1,705	Bureau Veritas	A

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.