Navalyze · Reefer · Ship

KENTA MARU

IMO: 9788772
Type: Refrigerated cargo carrier
Average cargo carried: 0 t
Flag (estimated): Japan
Port of registry: Tokyo
Technical efficiency: EEDI 16.60 g CO₂/t·nm

ISM company (DoC holder) in 2025: TOEI REEFER LINE LTD.

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 74 t of cargo on average.

Fuel kg/nm

48.1

Reefer median 86.2 kg/nm (−44%)

CO₂ per transport work (cargo)

2,049

g CO₂/t·nm · Reefer median 72.8 (+2,713%)

Average speed

13.3 kn

Reefer median 15.3 kn (−13%)

Fuel per day at sea

15.4 t/day

Fuel consumed

385 t

CO₂ emitted

1,207 t

Distance sailed

7,997 nm

CO₂ ÷ CO₂ per mile

Time at sea

599 h

25 days, 7% of the year

Within the reefer fleet, 2023

Set against all 135 reefer ships with a full-year 2023 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 80.3 kg/nm · median 80.9 (−1%)

49.9Ranks 65 of 135, lowest first114

Average speedThis ship 11.2 kn · median 14.7 (−24%)

10.6Faster than 15% of reefer ships17.0

CO₂ per transport work (cargo)This ship 188 g CO₂/t·nm · median 55.6 (+239%)

35.2Ranks 133 of 135, lowest first109

Middle 80% of shipsMiddle 50%Reefer 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 ports0%
From the EU7%
Into the EU92%
At berth in the EU1%

Fuel burned laden

385 t

100% of all fuel; 0% in ballast or unladen

CO₂ at berth

12 t

1.0% 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 Reefer median is the middle ship of all reefer ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

KENTA MARU
Reefer median

0.050.0100.0150.0200.0

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

Average speed, kn

KENTA MARU
Reefer median

10.012.014.016.0

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

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

KENTA MARU
Reefer median

0.05001,0001,5002,0002,500

’182018’192019’202020’232023

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+4.1 kn	−30%	−2%	−20%	–	4.1 kn faster, fuel per mile down 30%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.9 kn	+89%	+75%	−89%	–	0.9 kn slower, fuel per mile up 89%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−2.0 kn	−42%	−51%	+623%	–	2.0 kn slower, fuel per mile down 42%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.4 kn	+88%	+82%	−69%	–	0.4 kn slower, fuel per mile up 88%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.5 kn	+12%	+16%	−24%	–	0.5 kn faster, fuel per mile up 12%; in line with the speed change.
2019→2020	−0.3 kn	−25%	−27%	+5%	−53%	0.3 kn slower, fuel per mile down 25%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.1 kn	+83%	+84%	+38%	−29%	Same speed, fuel per mile up 83%; 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	TOEI REEFER LINE LTD.	175	545	1,637	114	14.4	107	1,822,636	22%
2024	TOEI REEFER LINE LTD.	312	976	2,054	199	10.3	152	–	26%
2023	not published	1,571	4,953	19,555	1,750	11.2	80.3	188	67%
2022	not published	375	1,194	2,705	205	13.2	139	541	94%
2021	not published	649	2,081	8,796	646	13.6	73.8	36,919	1%
2020	not published	761	2,439	11,588	882	13.1	65.7	683	17%
2019	not published	968	3,086	11,016	822	13.4	87.9	1,452	13%
2018	not published	385	1,207	7,997	599	13.3	48.1	2,049	100%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Reefer median	vs Reefer	Rank	Verifier	Methods
2025	TOEI REEFER LINE LTD.	–	–	–	–	ClassNK	C
2024	TOEI REEFER LINE LTD.	–	–	–	–	ClassNK	C
2023	not published	188	55.6	+239%	133 of 135	ClassNK	C
2022	not published	–	–	–	–	ClassNK	C
2021	not published	–	–	–	–	ClassNK	C
2020	not published	683	59.1	+1,057%	147 of 149	ClassNK	C
2019	not published	1,452	62.6	+2,220%	145 of 147	ClassNK	C
2018	not published	2,049	72.8	+2,713%	132 of 136	ClassNK	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Reefer 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 reefer 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.