Navalyze · Container · Ship

RUBY TOWER

IMO: 9618276
Type: Container ship
Average cargo carried: 62,800 t
Flag (estimated): Liberia
Port of registry: Monrovia
Technical efficiency: EEXI 7.20 g CO₂/t·nm
Former names: MSC AGRIGENTO

ISM company (DoC holder) in 2025: MSC Shipmanagement Ltd · part of MSC Group

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 69,568 t of cargo on average.

Fuel kg/nm

313

Container median 172 kg/nm (+82%)

CO₂ per transport work (cargo)

14.0

g CO₂/t·nm · Container median 17.6 (−20%)

Average speed

16.5 kn

Container median 14.0 kn (+18%)

Fuel per day at sea

123.8 t/day

Fuel consumed

20,002 t

CO₂ emitted

62,322 t

Distance sailed

63,852 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,877 h

162 days, 44% 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 339 kg/nm · median 177 (+91%)

78.8Ranks 2,126 of 2,208, lowest first302

Average speedThis ship 14.1 kn · median 13.3 (+6%)

9.1Faster than 62% of container ships16.0

CO₂ per transport work (cargo)This ship 16.9 g CO₂/t·nm · median 16.3 (+4%)

7.22Ranks 1,148 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 ports31%
From the EU33%
Into the EU30%
At berth in the EU5%

Fuel burned laden

–

Not reported

CO₂ at berth

3,347 t

5.4% 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

RUBY TOWER
Container median

150.0200.0250.0300.0350.0

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

Average speed, kn

RUBY TOWER
Container median

12.013.014.015.016.017.0

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

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

RUBY TOWER
Container median

12.014.016.018.020.022.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+1.2 kn	+22%	+33%	−67%	+21%	1.2 kn faster, fuel per mile up 22%; in line with the speed change.
2023→2024	−0.5 kn	−0%	−4%	+43%	+13%	0.5 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2021→2023	−2.3 kn	−16%	−28%	+83%	−1%	2.3 kn slower, fuel per mile down 16%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.8 kn	+5%	+0%	−71%	−11%	0.8 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.2 kn	+2%	+1%	+105%	+2%	Same speed, fuel per mile up 2%; in line with the speed change.
2018→2019	+1.7 kn	−2%	+9%	−56%	−15%	1.7 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).

Part-year reports are left out of these comparisons. 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
2025part-year	MSC Shipmanagement Ltd	5,545	17,351	16,368	1,160	14.1	339	16.9	–
2025	Zodiac Maritime Ltd	5,545	17,351	16,368	1,160	14.1	339	16.9	–
2024	MSC Shipmanagement Ltd	13,663	42,592	49,077	3,809	12.9	278	13.9	–
2023	not published	9,585	29,903	34,363	2,562	13.4	279	12.3	–
2021	not published	6,210	19,344	18,799	1,198	15.7	330	12.5	–
2020	not published	20,002	62,322	63,852	3,877	16.5	313	14.0	–
2019	not published	9,536	29,728	31,177	1,872	16.7	306	13.8	–
2018	not published	22,094	69,007	71,107	4,731	15.0	311	16.2	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025part-year	MSC Shipmanagement Ltd	–	–	–	–	DNV	B+C
2025	Zodiac Maritime Ltd	16.9	16.3	+4%	1,148 of 2,208	ABS	C
2024	MSC Shipmanagement Ltd	13.9	17.5	−21%	754 of 1,974	DNV	B+C
2023	not published	12.3	19.4	−37%	553 of 1,899	DNV	B+C
2021	not published	12.5	17.9	−30%	502 of 1,781	DNV	C
2020	not published	14.0	17.6	−20%	668 of 1,797	DNV	C
2019	not published	13.8	18.9	−27%	558 of 1,788	DNV	C
2018	not published	16.2	20.2	−20%	622 of 1,705	DNV	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.