Navalyze · General cargo · Ship

AFRICAN WREN

IMO: 9852705
Type: General cargo ship
Port of registry: Nassau
Technical efficiency: EEDI 5.23 g CO₂/t·nm

Report year

2023 at a glance

From the 2023 THETIS-MRV report.

Fuel per mile

68.7 kg/nm

General cargo median 59.9 kg/nm (+15%)

CO₂ per transport work (dwt)

15.89

g CO₂/dwt·nm · General cargo median 20.67 (−23%)

Average speed

12.0 kn

General cargo median 10.5 kn (+14%)

Fuel per day at sea

19.8 t/day

Fuel consumed

278 t

CO₂ emitted

879 t

Distance sailed

4,054 nm

CO₂ ÷ CO₂ per mile

Time at sea

337 h

14 days, 4% of the year

Within the general cargo fleet, 2023

Set against all 1,045 general cargo 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 per mileThis ship 68.7 kg/nm · median 59.9 (+15%)

36.2Ranks 648 of 1,045, lowest first89.2

Average speedThis ship 12.0 kn · median 10.5 (+14%)

7.5Faster than 83% of general cargo ships12.5

CO₂ per transport work (dwt)This ship 15.89 g CO₂/dwt·nm · median 20.67 (−23%)

8.03Ranks 341 of 1,045, lowest first40.75

Middle 80% of shipsMiddle 50%General cargo 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 ports8%
From the EU71%
Into the EU0%
At berth in the EU20%

Fuel burned laden

72%

29% in ballast or unladen

CO₂ at berth

20.2%

Alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

–

Uplift from CH₄ and N₂O, counted in full from 2026

Over the years

Full-year reports only. The General cargo median is the middle ship of all general cargo ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

AFRICAN WREN
General cargo median

55.060.065.070.0

’222022’232023

Average speed, kn

AFRICAN WREN
General cargo median

10.511.011.512.0

’222022’232023

CO₂ per transport work (dwt), g CO₂/dwt·nm

AFRICAN WREN
General cargo median

5.010.015.020.025.0

’222022’232023

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2022→2023	+1.3 kn	+10%	+22%	−68%	+151%	1.3 kn faster, fuel per mile up 10%; 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
2023	not published	278	879	4,054	337	12.0	68.7	–	72%
2022	not published	796	2,509	12,697	1,182	10.7	62.7	–	93%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/dwt·nm	General cargo median	vs General cargo	Rank	Verifier	Methods
2023	not published	15.89	20.67	−23%	341 of 1,045	ABS	A+C
2022	not published	6.32	21.57	−71%	36 of 1,034	ABS	A+B

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. General cargo ships are benchmarked on CO₂ per transport work (dwt) (TW), in g CO₂/dwt·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 general cargo 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.