Navalyze · Container · Ship

REBECCA S

IMO: 9428205
Type: Container ship
Average cargo carried: 3,032 t
Flag (estimated): Portugal
Port of registry: Portugal
Technical efficiency: EEXI 29.89 g CO₂/t·nm
Ice class: IA
Former names: SAMBA

ISM company (DoC holder) in 2025: GS LINES TRANSPORTES MARITIMOS LDA

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 3,032 t of cargo on average.

Fuel kg/nm

71.1

Container median 177 kg/nm (−60%)

CO₂ per transport work (cargo)

73.2

g CO₂/t·nm · Container median 16.3 (+349%)

Average speed

15.1 kn

Container median 13.3 kn (+14%)

Fuel per day at sea

25.7 t/day

Fuel consumed

5,406 t

CO₂ emitted

16,872 t

17,138 t CO₂eq incl. CH₄ and N₂O

Distance sailed

76,035 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,045 h

210 days, 58% 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 71.1 kg/nm · median 177 (−60%)

78.8Ranks 117 of 2,208, lowest first302

Average speedThis ship 15.1 kn · median 13.3 (+14%)

9.1Faster than 78% of container ships16.0

CO₂ per transport work (cargo)This ship 73.2 g CO₂/t·nm · median 16.3 (+349%)

7.22Ranks 2,175 of 2,208, lowest first46.9

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's emissions 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 ports92%
From the EU2%
Into the EU0%
At berth in the EU6%

6% of this ship's CO₂ falls under the EU ETS (1,039 t).

Fuel burned laden

–

Not reported

CO₂ at berth

1,080 t

6.4% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.3 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+266 t

+1.6% CO₂eq on top of CO₂ alone, from CH₄ and N₂O; counted in full from 2026

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

REBECCA S
Container median

50.0100.0150.0200.0

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

Average speed, kn

REBECCA S
Container median

8.010.012.014.016.0

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

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

REBECCA S
Container median

0.025.050.075.0100125

’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	+0.6 kn	+3%	+7%	+24%	+11%	0.6 kn faster, fuel per mile up 3%; better than speed alone explains (hull, engine or trade).
2023→2024	+0.1 kn	−4%	−3%	+20%	+3%	Same speed, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.4 kn	−7%	−5%	−6%	−15%	0.4 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.0 kn	+6%	+6%	−1%	+5%	Same speed, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+1.5 kn	+4%	+17%	+9%	−10%	1.5 kn faster, fuel per mile up 4%; better than speed alone explains (hull, engine or trade).
2019→2020	+2.9 kn	−7%	+21%	+135%	−27%	2.9 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2018→2019	−2.0 kn	−2%	−19%	−57%	+39%	2.0 kn slower, fuel per mile flat; 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	GS LINES TRANSPORTES MARITIMOS LDA	5,406	16,872	76,035	5,045	15.1	71.1	73.2	–
2024	GS LINES TRANSPORTES MARITIMOS LDA	4,267	13,332	61,530	4,257	14.5	69.3	65.8	–
2023	not published	3,707	11,586	51,358	3,579	14.4	72.2	64.0	–
2022	not published	4,261	13,313	54,881	3,919	14.0	77.7	75.4	–
2021	not published	4,076	12,735	55,660	3,971	14.0	73.2	71.8	–
2020	not published	3,597	11,243	50,930	4,086	12.5	70.6	79.4	–
2019	not published	1,642	5,148	21,711	2,260	9.6	75.7	108	–
2018	not published	3,898	12,353	50,665	4,378	11.6	76.9	78.0	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	GS LINES TRANSPORTES MARITIMOS LDA	73.2	16.3	+349%	2,175 of 2,208	DNV	B
2024	GS LINES TRANSPORTES MARITIMOS LDA	65.8	17.5	+276%	1,889 of 1,974	DNV	B
2023	not published	64.0	19.4	+230%	1,810 of 1,899	DNV	B
2022	not published	75.4	19.1	+294%	1,781 of 1,825	DNV	A
2021	not published	71.8	17.9	+301%	1,738 of 1,781	DNV	A
2020	not published	79.4	17.6	+352%	1,775 of 1,797	DNV	A
2019	not published	108	18.9	+475%	1,786 of 1,788	DNV	A
2018	not published	78.0	20.2	+286%	1,645 of 1,705	Swiss Climate	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.