Navalyze · Container · Ship

CAP SAN SOUNIO

IMO: 9633953
Type: Container ship
Average cargo carried: 72,384 t
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

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 72,384 t of cargo on average.

Fuel per mile

231.0 kg/nm

Container median 177.0 kg/nm (+31%)

CO₂ per transport work (cargo)

9.95

g CO₂/t·nm · Container median 16.30 (−39%)

Average speed

16.0 kn

Container median 13.3 kn (+20%)

Fuel per day at sea

88.5 t/day

Fuel consumed

24,337 t

CO₂ emitted

75,880 t

77,075 t CO₂eq incl. CH₄ and N₂O

Distance sailed

105,356 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,602 h

275 days, 75% 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 per mileThis ship 231.0 kg/nm · median 177.0 (+31%)

78.8Ranks 1,497 of 2,208, lowest first302.4

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 16.30 (−39%)

7.22Ranks 565 of 2,208, lowest first46.89

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2025

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 ports6%
From the EU55%
Into the EU38%
At berth in the EU1%

40% of this ship's CO₂ falls under the EU ETS (30,446 t).

Fuel burned laden

–

Not reported

CO₂ at berth

0.6%

Alongside in EU ports

Methane (CH₄)

1.2 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift 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 per mile, 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	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025part-year	SYNERGY MARITIME PRIVATE LIMITED	5,816	18,135	23,730	1,408	16.9	245.1	13.65	–
2025	SYNERGY PACIFIC PRIVATE LIMITED	24,337	75,880	105,356	6,602	16.0	231.0	9.95	–
2024	SYNERGY MARITIME PRIVATE LIMITED	16,806	52,388	65,583	4,258	15.4	256.3	8.87	–
2023	not published	3,612	11,367	16,154	1,186	13.6	223.6	13.76	–
2022	not published	5,671	17,727	18,617	1,126	16.5	304.6	10.30	–
2021	not published	4,407	13,778	14,462	850	17.0	304.7	10.29	–
2020	not published	6,202	19,412	21,929	1,503	14.6	282.8	8.94	–
2019	not published	3,512	10,984	13,135	806	16.3	267.4	9.76	–
2018	not published	16,520	51,643	56,157	3,219	17.4	294.2	10.97	–

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	16.30	−39%	565 of 2,208	ClassNK	B+C
2024	SYNERGY MARITIME PRIVATE LIMITED	8.87	17.52	−49%	365 of 1,974	ClassNK	A
2023	not published	13.76	19.40	−29%	657 of 1,899	ClassNK	A
2022	not published	10.30	19.13	−46%	338 of 1,825	ClassNK	A
2021	not published	10.29	17.90	−43%	344 of 1,781	ClassNK	A
2020	not published	8.94	17.58	−49%	302 of 1,797	ClassNK	A
2019	not published	9.76	18.88	−48%	299 of 1,788	ClassNK	A+B
2018	not published	10.97	20.22	−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.