Navalyze · Container · Ship

SEASPAN EMISSARY

IMO: 9407158
Type: Container ship
Average cargo carried: 34,359 t
Flag (estimated): Singapore
Port of registry: Singapore
Technical efficiency: EEXI 13.04 g CO₂/t·nm
Former names: MOL EMISSARY

ISM company (DoC holder) in 2025: Seaspan Ship Management Ltd.

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 31,281 t of cargo on average.

Fuel kg/nm

194

Container median 182 kg/nm (+7%)

CO₂ per transport work (cargo)

19.5

g CO₂/t·nm · Container median 20.2 (−4%)

Average speed

16.2 kn

Container median 13.8 kn (+17%)

Fuel per day at sea

75.6 t/day

Fuel consumed

18,729 t

CO₂ emitted

58,791 t

Distance sailed

96,332 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,949 h

248 days, 68% 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 160 kg/nm · median 177 (−10%)

78.8Ranks 991 of 2,208, lowest first302

Average speedThis ship 12.2 kn · median 13.3 (−8%)

9.1Faster than 32% of container ships16.0

CO₂ per transport work (cargo)This ship 14.6 g CO₂/t·nm · median 16.3 (−11%)

7.22Ranks 978 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 ports7%
From the EU50%
Into the EU41%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

1,111 t

1.9% 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

SEASPAN EMISSARY
Container median

120.0140.0160.0180.0200.0

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

Average speed, kn

SEASPAN EMISSARY
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

SEASPAN EMISSARY
Container median

14.016.018.020.022.0

’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	−0.7 kn	−2%	−7%	−38%	+1%	0.7 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.7 kn	+18%	+11%	+64%	+2%	0.7 kn slower, fuel per mile up 18%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2023	−1.2 kn	−29%	−35%	+11%	−27%	1.2 kn slower, fuel per mile down 29%; better than speed alone explains (hull, engine or trade).
2020→2021	+2.1 kn	+25%	+47%	−30%	+16%	2.1 kn faster, fuel per mile up 25%; better than speed alone explains (hull, engine or trade).
2019→2020	−0.9 kn	−1%	−8%	−21%	+10%	0.9 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−2.6 kn	−19%	−32%	−13%	−22%	2.6 kn slower, fuel per mile down 19%; 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	Seaspan Ship Management Ltd.	8,360	26,196	52,292	4,289	12.2	160	14.6	–
2024	Seaspan Ship Management Ltd.	13,675	42,650	83,954	6,524	12.9	163	14.4	–
2023	not published	7,103	22,161	51,253	3,764	13.6	139	14.1	–
2021	not published	9,018	28,569	46,243	3,115	14.8	195	19.3	–
2020	not published	10,307	32,609	66,343	5,214	12.7	155	16.7	–
2019	not published	13,221	41,359	83,960	6,191	13.6	158	15.2	–
2018	not published	18,729	58,791	96,332	5,949	16.2	194	19.5	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	Seaspan Ship Management Ltd.	14.6	16.3	−11%	978 of 2,208	DNV	B+C
2024	Seaspan Ship Management Ltd.	14.4	17.5	−18%	782 of 1,974	DNV	B+C
2023	not published	14.1	19.4	−27%	686 of 1,899	DNV	B+C
2021	not published	19.3	17.9	+8%	953 of 1,781	DNV	B+C
2020	not published	16.7	17.6	−5%	834 of 1,797	DNV	B+C
2019	not published	15.2	18.9	−19%	672 of 1,788	DNV	B+C
2018	not published	19.5	20.2	−4%	813 of 1,705	DNV	B+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.