Navalyze · Reefer · Ship

EMERALD

IMO: 9202857
Type: Refrigerated cargo carrier
Average cargo carried: 7,199 t
Flag (estimated): Barbados
Port of registry: Bridgetown

ISM company (DoC holder) in 2025: Sole Seas Corporation

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 3,631 t of cargo on average.

Fuel kg/nm

89.7

Reefer median 80.9 kg/nm (+11%)

CO₂ per transport work (cargo)

77.3

g CO₂/t·nm · Reefer median 55.6 (+39%)

Average speed

16.1 kn

Reefer median 14.7 kn (+10%)

Fuel per day at sea

34.6 t/day

Fuel consumed

4,468 t

CO₂ emitted

13,980 t

Distance sailed

49,834 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,097 h

129 days, 35% 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 kg/nmThis ship 79.6 kg/nm · median 82.9 (−4%)

55.8Ranks 43 of 109, lowest first118

Average speedThis ship 7.9 kn · median 14.6 (−46%)

8.2Faster than 8% of reefer ships16.7

CO₂ per transport work (cargo)This ship 34.8 g CO₂/t·nm · median 56.8 (−39%)

36.7Ranks 8 of 109, lowest first140

Middle 80% of shipsMiddle 50%Reefer medianThis ship

Where the emissions happen, 2023

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 EU44%
Into the EU51%
At berth in the EU5%

Fuel burned laden

–

Not reported

CO₂ at berth

734 t

5.3% 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

EMERALD
Reefer median

70.075.080.085.090.0

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

Average speed, kn

EMERALD
Reefer median

5.010.015.020.0

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

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

EMERALD
Reefer median

20.040.060.080.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−2.5 kn	−5%	−28%	−65%	−56%	2.5 kn slower, fuel per mile down 5%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−5.7 kn	−6%	−39%	+33%	+3%	5.7 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+1.2 kn	+14%	+24%	+91%	+14%	1.2 kn faster, fuel per mile up 14%; in line with the speed change.
2021→2022	−2.5 kn	−3%	−17%	−45%	+29%	2.5 kn slower, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−1.0 kn	+13%	+7%	−39%	+11%	1.0 kn slower, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+1.6 kn	−18%	−11%	−8%	−23%	1.6 kn faster, fuel per mile down 18%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.5 kn	−2%	−5%	+8%	−21%	0.5 kn slower, fuel per mile down 2%; in line with the speed change.

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	Sole Seas Corporation	1,831	5,770	23,012	2,896	7.9	79.6	34.8	–
2024	Sole Seas Corporation	5,575	17,758	66,231	6,362	10.4	84.2	79.4	–
2023	not published	4,468	13,980	49,834	3,097	16.1	89.7	77.3	–
2022	not published	2,043	6,389	26,057	1,753	14.9	78.4	67.9	–
2021	not published	3,813	11,922	47,088	2,704	17.4	81.0	52.6	–
2020	not published	5,497	17,175	76,955	4,174	18.4	71.4	47.5	–
2019	not published	7,284	22,692	83,210	4,942	16.8	87.5	62.0	–
2018	not published	6,882	21,440	76,835	4,434	17.3	89.6	78.5	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Reefer median	vs Reefer	Rank	Verifier	Methods
2025	Sole Seas Corporation	34.8	56.8	−39%	8 of 109	Bureau Veritas	A
2024	Sole Seas Corporation	79.4	58.7	+35%	82 of 108	Bureau Veritas	A
2023	not published	77.3	55.6	+39%	100 of 135	ICS Verification Services	A
2022	not published	67.9	55.3	+23%	99 of 143	ICS Verification Services	A
2021	not published	52.6	55.0	−4%	70 of 158	ICS Verification Services	A
2020	not published	47.5	59.1	−20%	36 of 149	ICS Verification Services	A
2019	not published	62.0	62.6	−1%	72 of 147	Bureau Veritas	A
2018	not published	78.5	72.8	+8%	84 of 136	Bureau Veritas	A

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.