Navalyze · Reefer · Ship

COOL EXPLORER

IMO: 9836880
Type: Refrigerated cargo carrier
Average cargo carried: 12,964 t
Port of registry: Panama
Technical efficiency: EIV 19.49 g CO₂/t·nm
Ice class: IB

ISM company (DoC holder) in 2025: Kowa Marine Service Co., Ltd.

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 12,964 t of cargo on average.

Fuel per mile

145.7 kg/nm

Reefer median 82.9 kg/nm (+76%)

CO₂ per transport work (cargo)

35.03

g CO₂/t·nm · Reefer median 56.80 (−38%)

Average speed

14.9 kn

Reefer median 14.6 kn (+2%)

Fuel per day at sea

51.9 t/day

Fuel consumed

241 t

CO₂ emitted

752 t

764 t CO₂eq incl. CH₄ and N₂O

Distance sailed

1,656 nm

CO₂ ÷ CO₂ per mile

Time at sea

112 h

5 days, 1% of the year

Within the reefer fleet, 2025

Set against all 109 reefer 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 145.7 kg/nm · median 82.9 (+76%)

55.8Ranks 108 of 109, lowest first117.7

Average speedThis ship 14.9 kn · median 14.6 (+2%)

8.2Faster than 52% of reefer ships16.7

CO₂ per transport work (cargo)This ship 35.03 g CO₂/t·nm · median 56.80 (−38%)

36.74Ranks 10 of 109, lowest first140.03

Middle 80% of shipsMiddle 50%Reefer 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 ports0%
From the EU88%
Into the EU8%
At berth in the EU4%

52% of this ship's CO₂ falls under the EU ETS (389 t).

Fuel burned laden

–

Not reported

CO₂ at berth

3.5%

Alongside in EU ports

Methane (CH₄)

0.0 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 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 per mile, kg/nm

COOL EXPLORER
Reefer median

80.0100.0120.0140.0160.0

’192019’202020’212021’222022’232023’252025

Average speed, kn

COOL EXPLORER
Reefer median

14.015.016.017.018.0

’192019’202020’212021’222022’232023’252025

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

COOL EXPLORER
Reefer median

20.040.060.080.0

’192019’202020’212021’222022’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2023→2025	−2.6 kn	+28%	+9%	−73%	–	2.6 kn slower, fuel per mile up 28%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.3 kn	−4%	−3%	−89%	–	0.3 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.8 kn	−20%	−16%	+83%	+130%	0.8 kn faster, fuel per mile down 20%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.1 kn	+6%	+7%	−42%	−3%	Same speed, fuel per mile up 6%; in line with the speed change.
2019→2020	−0.2 kn	+6%	+5%	+222%	+26%	Same speed, fuel per mile up 6%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Kowa Marine Service Co., Ltd.	241	752	1,656	112	14.9	145.7	35.03	–
2023	not published	695	2,165	6,123	350	17.5	113.5	1,784.15	–
2022	not published	6,797	21,176	57,303	3,338	17.2	118.6	64.56	–
2021	not published	4,661	14,523	31,394	1,918	16.4	148.5	28.05	–
2020	not published	7,523	23,437	53,832	3,312	16.3	139.8	28.77	–
2019	not published	2,193	6,832	16,703	1,013	16.5	131.3	22.90	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Reefer median	vs Reefer	Rank	Verifier	Methods
2025	Kowa Marine Service Co., Ltd.	35.03	56.80	−38%	10 of 109	ClassNK	C
2023	not published	–	–	–	–	ClassNK	C
2022	not published	64.56	55.27	+17%	93 of 143	ClassNK	A+C
2021	not published	28.05	54.99	−49%	4 of 158	ClassNK	A+C
2020	not published	28.77	59.07	−51%	3 of 149	ClassNK	A+C
2019	not published	22.90	62.58	−63%	6 of 147	ClassNK	A+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.