Navalyze · Container · Ship

SKALAR

IMO: 9458975
Type: Container ship
Average cargo carried: 6,906 t
Flag (estimated): Portugal
Port of registry: Madeira
Technical efficiency: EEXI 23.10 g CO₂/t·nm
Ice class: IA
Former names: CONMAR BAY, SAMSKIP ESTRELA

ISM company (DoC holder) in 2025: Reederei Rambow GmbH & Co. KG MS "SKALAR"

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 8,268 t of cargo on average.

Fuel kg/nm

89.2

Container median 172 kg/nm (−48%)

CO₂ per transport work (cargo)

34.1

g CO₂/t·nm · Container median 17.6 (+94%)

Average speed

13.3 kn

Container median 14.0 kn (−5%)

Fuel per day at sea

28.6 t/day

Fuel consumed

5,291 t

CO₂ emitted

16,730 t

Distance sailed

59,304 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,444 h

185 days, 51% 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 76.5 kg/nm · median 177 (−57%)

78.8Ranks 188 of 2,208, lowest first302

Average speedThis ship 12.0 kn · median 13.3 (−10%)

9.1Faster than 31% of container ships16.0

CO₂ per transport work (cargo)This ship 34.9 g CO₂/t·nm · median 16.3 (+114%)

7.22Ranks 1,788 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 ports81%
From the EU6%
Into the EU4%
At berth in the EU10%

Fuel burned laden

–

Not reported

CO₂ at berth

1,613 t

9.6% 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

SKALAR
Container median

50.0100.0150.0200.0

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

Average speed, kn

SKALAR
Container median

12.013.014.015.0

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

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

SKALAR
Container median

10.020.030.040.0

’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	−5%	−7%	−10%	−6%	0.3 kn slower, fuel per mile down 5%; in line with the speed change.
2023→2024	−0.5 kn	+0%	−4%	−7%	+10%	0.5 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.2 kn	+4%	+6%	+21%	+4%	Same speed, fuel per mile up 4%; in line with the speed change.
2021→2022	−0.1 kn	−8%	−8%	−13%	−3%	Same speed, fuel per mile down 8%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.6 kn	−6%	−11%	−3%	−2%	0.6 kn slower, fuel per mile down 6%; in line with the speed change.
2019→2020	+0.3 kn	+0%	+4%	−9%	−1%	0.3 kn faster, fuel per mile flat.
2018→2019	+0.2 kn	+3%	+5%	+4%	+1%	Same speed, fuel per mile up 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Reederei Rambow GmbH & Co. KG MS "SKALAR"	3,879	12,217	50,730	4,213	12.0	76.5	34.9	100%
2024	Reederei Rambow GmbH & Co. KG MS " SKALAR"	4,553	14,306	56,573	4,604	12.3	80.5	37.1	–
2023	not published	4,881	15,292	60,670	4,742	12.8	80.5	33.8	–
2022	not published	3,898	12,351	50,306	3,989	12.6	77.5	32.6	–
2021	not published	4,850	15,312	57,814	4,564	12.7	83.9	33.5	–
2020	not published	5,291	16,730	59,304	4,444	13.3	89.2	34.1	–
2019	not published	5,801	18,305	65,362	5,041	13.0	88.8	34.4	100%
2018	not published	5,369	16,943	62,611	4,879	12.8	85.8	34.1	100%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	Reederei Rambow GmbH & Co. KG MS "SKALAR"	34.9	16.3	+114%	1,788 of 2,208	RINA	A
2024	Reederei Rambow GmbH & Co. KG MS " SKALAR"	37.1	17.5	+112%	1,575 of 1,974	Dromon Bureau of Shipping	A
2023	not published	33.8	19.4	+74%	1,432 of 1,899	Dromon Bureau of Shipping	A
2022	not published	32.6	19.1	+71%	1,351 of 1,825	Dromon Bureau of Shipping	A
2021	not published	33.5	17.9	+87%	1,377 of 1,781	RINA	A
2020	not published	34.1	17.6	+94%	1,394 of 1,797	Bureau Veritas	A
2019	not published	34.4	18.9	+82%	1,339 of 1,788	Bureau Veritas	A
2018	not published	34.1	20.2	+69%	1,240 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.