Navalyze · Reefer · Ship

CHARLES ISLAND

IMO: 9059626
Type: Refrigerated cargo carrier
Average cargo carried: 4,276 t
Port of registry: Nassau
Technical efficiency: EEXI 18.60 g CO₂/t·nm

ISM company (DoC holder) in 2025: Trireme Vessel Management NV

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 4,276 t of cargo on average.

Fuel per mile

90.9 kg/nm

Reefer median 82.9 kg/nm (+10%)

CO₂ per transport work (cargo)

66.33

g CO₂/t·nm · Reefer median 56.80 (+17%)

Average speed

15.4 kn

Reefer median 14.6 kn (+5%)

Fuel per day at sea

33.7 t/day

Fuel consumed

3,604 t

CO₂ emitted

11,247 t

11,424 t CO₂eq incl. CH₄ and N₂O

Distance sailed

39,649 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,570 h

107 days, 29% 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 90.9 kg/nm · median 82.9 (+10%)

55.8Ranks 73 of 109, lowest first117.7

Average speedThis ship 15.4 kn · median 14.6 (+5%)

8.2Faster than 65% of reefer ships16.7

CO₂ per transport work (cargo)This ship 66.33 g CO₂/t·nm · median 56.80 (+17%)

36.74Ranks 75 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 ports55%
From the EU21%
Into the EU19%
At berth in the EU4%

27% of this ship's CO₂ falls under the EU ETS (3,049 t).

Fuel burned laden

–

Not reported

CO₂ at berth

4.4%

Alongside in EU ports

Methane (CH₄)

0.2 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 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

CHARLES ISLAND
Reefer median

80.0100.0120.0140.0

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

Average speed, kn

CHARLES ISLAND
Reefer median

13.014.015.016.017.018.0

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

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

CHARLES ISLAND
Reefer median

0.050.0100150200

’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	−1.2 kn	−15%	−21%	−10%	+65%	1.2 kn slower, fuel per mile down 15%; in line with the speed change.
2023→2024	+1.1 kn	+7%	+15%	−6%	−40%	1.1 kn faster, fuel per mile up 7%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.1 kn	+4%	+5%	−6%	−4%	Same speed, fuel per mile up 4%; in line with the speed change.
2021→2022	+0.0 kn	+5%	+5%	+43%	+8%	Same speed, fuel per mile up 5%; in line with the speed change.
2020→2021	+0.3 kn	−11%	−9%	−35%	+41%	0.3 kn faster, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2019→2020	+1.4 kn	−19%	−11%	+15%	+1,137%	1.4 kn faster, fuel per mile down 19%; better than speed alone explains (hull, engine or trade).
2018→2019	−4.0 kn	+1%	−22%	+145%	−98%	4.0 kn slower, fuel per mile flat; 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	Trireme Vessel Management NV	3,604	11,247	39,649	2,570	15.4	90.9	66.33	–
2024	Trireme Vessel Management NV	4,722	14,735	44,090	2,653	16.6	107.1	40.23	–
2023	not published	4,718	14,723	47,126	3,050	15.5	100.1	66.58	–
2022	not published	4,801	14,974	50,096	3,259	15.4	95.8	69.32	–
2021	not published	3,193	9,976	34,980	2,278	15.4	91.3	64.37	–
2020	not published	5,471	17,093	53,587	3,554	15.1	102.1	45.53	–
2019	not published	5,856	18,338	46,713	3,407	13.7	125.4	3.68	–
2018	not published	2,372	7,431	19,058	1,077	17.7	124.5	162.96	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Reefer median	vs Reefer	Rank	Verifier	Methods
2025	Trireme Vessel Management NV	66.33	56.80	+17%	75 of 109	Lloyd's Register	B+C
2024	Trireme Vessel Management NV	40.23	58.69	−31%	17 of 108	Lloyd's Register	B+C
2023	not published	66.58	55.59	+20%	89 of 135	Lloyd's Register	C
2022	not published	69.32	55.27	+25%	102 of 143	Lloyd's Register	C
2021	not published	64.37	54.99	+17%	108 of 158	Lloyd's Register	C
2020	not published	45.53	59.07	−23%	34 of 149	Lloyd's Register	C
2019	not published	3.68	62.58	−94%	1 of 147	Lloyd's Register	–
2018	not published	162.96	72.84	+124%	120 of 136	Lloyd's Register	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.