Navalyze · Container · Ship

CAP SAN SOUNIO

IMO: 9633953
Type: Container ship
Average cargo carried: 72,384 t
Flag (estimated): Panama
Port of registry: Panama
Technical efficiency: EEXI 8.41 g CO₂/t·nm

ISM company (DoC holder) in 2025: SYNERGY MARITIME PRIVATE LIMITED · part of Synergy Marine

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 83,830 t of cargo on average.

Fuel kg/nm

294

Container median 182 kg/nm (+62%)

CO₂ per transport work (cargo)

11.0

g CO₂/t·nm · Container median 20.2 (−46%)

Average speed

17.4 kn

Container median 13.8 kn (+26%)

Fuel per day at sea

123.2 t/day

Fuel consumed

16,520 t

CO₂ emitted

51,643 t

Distance sailed

56,157 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,219 h

134 days, 37% 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 231 kg/nm · median 177 (+31%)

78.8Ranks 1,497 of 2,208, lowest first302

Average speedThis ship 16.0 kn · median 13.3 (+20%)

9.1Faster than 89% of container ships16.0

CO₂ per transport work (cargo)This ship 9.95 g CO₂/t·nm · median 16.3 (−39%)

7.22Ranks 565 of 2,208, lowest first46.9

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2018

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 ports5%
From the EU43%
Into the EU50%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

1,141 t

2.2% 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

CAP SAN SOUNIO
Container median

150.0200.0250.0300.0350.0

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

Average speed, kn

CAP SAN SOUNIO
Container median

12.014.016.018.0

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

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

CAP SAN SOUNIO
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	+0.6 kn	−10%	−7%	+61%	+12%	0.6 kn faster, fuel per mile down 10%; better than speed alone explains (hull, engine or trade).
2023→2024	+1.8 kn	+15%	+30%	+306%	−36%	1.8 kn faster, fuel per mile up 15%; better than speed alone explains (hull, engine or trade).
2022→2023	−2.9 kn	−27%	−40%	−13%	+34%	2.9 kn slower, fuel per mile down 27%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.5 kn	−0%	−3%	+29%	+0%	0.5 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+2.4 kn	+8%	+26%	−34%	+15%	2.4 kn faster, fuel per mile up 8%; better than speed alone explains (hull, engine or trade).
2019→2020	−1.7 kn	+6%	−5%	+67%	−8%	1.7 kn slower, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−1.1 kn	−9%	−15%	−77%	−11%	1.1 kn slower, fuel per mile down 9%; in line with the speed change.

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	SYNERGY MARITIME PRIVATE LIMITED	5,816	18,135	23,730	1,408	16.9	245	13.7	–
2025	SYNERGY PACIFIC PRIVATE LIMITED	24,337	75,880	105,356	6,602	16.0	231	9.95	–
2024	SYNERGY MARITIME PRIVATE LIMITED	16,806	52,388	65,583	4,258	15.4	256	8.87	–
2023	not published	3,612	11,367	16,154	1,186	13.6	224	13.8	–
2022	not published	5,671	17,727	18,617	1,126	16.5	305	10.3	–
2021	not published	4,407	13,778	14,462	850	17.0	305	10.3	–
2020	not published	6,202	19,412	21,929	1,503	14.6	283	8.94	–
2019	not published	3,512	10,984	13,135	806	16.3	267	9.76	–
2018	not published	16,520	51,643	56,157	3,219	17.4	294	11.0	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025part-year	SYNERGY MARITIME PRIVATE LIMITED	–	–	–	–	ClassNK	A
2025	SYNERGY PACIFIC PRIVATE LIMITED	9.95	16.3	−39%	565 of 2,208	ClassNK	B+C
2024	SYNERGY MARITIME PRIVATE LIMITED	8.87	17.5	−49%	365 of 1,974	ClassNK	A
2023	not published	13.8	19.4	−29%	657 of 1,899	ClassNK	A
2022	not published	10.3	19.1	−46%	338 of 1,825	ClassNK	A
2021	not published	10.3	17.9	−43%	344 of 1,781	ClassNK	A
2020	not published	8.94	17.6	−49%	302 of 1,797	ClassNK	A
2019	not published	9.76	18.9	−48%	299 of 1,788	ClassNK	A+B
2018	not published	11.0	20.2	−46%	321 of 1,705	DNV	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.