Navalyze · Reefer · Ship

ACONCAGUA BAY

IMO: 9019652
Type: Refrigerated cargo carrier
Average cargo carried: 4,967 t
Port of registry: Monrovia
Technical efficiency: EIV 16.32 g CO₂/t·nm

ISM company (DoC holder) in 2025: Seatrade Groningen B.V. · part of Seatrade

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 4,967 t of cargo on average.

Fuel per mile

59.4 kg/nm

Reefer median 82.9 kg/nm (−28%)

CO₂ per transport work (cargo)

37.57

g CO₂/t·nm · Reefer median 56.80 (−34%)

Average speed

12.0 kn

Reefer median 14.6 kn (−18%)

Fuel per day at sea

17.2 t/day

Fuel consumed

1,238 t

CO₂ emitted

3,892 t

3,952 t CO₂eq incl. CH₄ and N₂O

Distance sailed

20,854 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,731 h

72 days, 20% 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 59.4 kg/nm · median 82.9 (−28%)

55.8Ranks 16 of 109, lowest first117.7

Average speedThis ship 12.0 kn · median 14.6 (−18%)

8.2Faster than 27% of reefer ships16.7

CO₂ per transport work (cargo)This ship 37.57 g CO₂/t·nm · median 56.80 (−34%)

36.74Ranks 14 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 EU59%
Into the EU32%
At berth in the EU9%

55% of this ship's CO₂ falls under the EU ETS (2,125 t).

Fuel burned laden

–

Not reported

CO₂ at berth

9.2%

Alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.015

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

ACONCAGUA BAY
Reefer median

50.060.070.080.090.0

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

Average speed, kn

ACONCAGUA BAY
Reefer median

12.014.016.018.0

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

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

ACONCAGUA BAY
Reefer median

0.0200400600

’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	−0.9 kn	−1%	−8%	+68%	+1%	0.9 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−1.3 kn	+5%	−5%	+108%	+12%	1.3 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−1.4 kn	−20%	−27%	−16%	−46%	1.4 kn slower, fuel per mile down 20%; in line with the speed change.
2021→2022	+0.6 kn	+8%	+13%	−25%	+22%	0.6 kn faster, fuel per mile up 8%; in line with the speed change.
2020→2021	−0.7 kn	+0%	−5%	−22%	−46%	0.7 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.7 kn	+6%	+2%	−14%	−84%	0.7 kn slower, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+1.7 kn	+5%	+17%	+137%	+457%	1.7 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine 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	Seatrade Groningen B.V.	1,238	3,892	20,854	1,731	12.0	59.4	37.57	–
2024	Seatrade Groningen B.V.	748	2,350	12,449	966	12.9	60.1	37.26	–
2023	not published	343	1,077	5,987	420	14.2	57.2	33.36	–
2022	not published	511	1,592	7,136	458	15.6	71.6	61.66	–
2021	not published	627	1,970	9,469	632	15.0	66.2	50.69	–
2020	not published	807	2,517	12,206	775	15.7	66.2	94.54	–
2019	not published	881	2,754	14,115	862	16.4	62.4	595.65	–
2018	not published	354	1,107	5,966	405	14.7	59.4	107.02	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Reefer median	vs Reefer	Rank	Verifier	Methods
2025	Seatrade Groningen B.V.	37.57	56.80	−34%	14 of 109	Bureau Veritas	A
2024	Seatrade Groningen B.V.	37.26	58.69	−37%	13 of 108	Bureau Veritas	A
2023	not published	33.36	55.59	−40%	12 of 135	Bureau Veritas	A+B
2022	not published	61.66	55.27	+12%	88 of 143	Bureau Veritas	A+B+C
2021	not published	50.69	54.99	−8%	65 of 158	Bureau Veritas	A
2020	not published	94.54	59.07	+60%	132 of 149	Bureau Veritas	A
2019	not published	595.65	62.58	+852%	143 of 147	Bureau Veritas	A
2018	not published	107.02	72.84	+47%	109 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.