Navalyze · General cargo · Ship

QUEEN SARA

IMO: 9132507
Type: General cargo ship
Average cargo carried: 5,070 t
Flag (estimated): Sierra Leone
Port of registry: Freetown
Technical efficiency: EIV 11.46 g CO₂/t·nm

Report year

2019 at a glance

From the 2019 THETIS-MRV report. Carries about 4,554 t of cargo on average.

Fuel kg/nm

62.6

General cargo median 57.7 kg/nm (+8%)

CO₂ per transport work (dwt)

39.3

g CO₂/dwt·nm · General cargo median 25.0 (+58%)

Average speed

11.0 kn

General cargo median 9.7 kn (+13%)

Fuel per day at sea

16.5 t/day

Fuel consumed

167 t

CO₂ emitted

523 t

Distance sailed

2,669 nm

CO₂ ÷ CO₂ per mile

Time at sea

243 h

10 days, 3% 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 kg/nmThis ship 64.4 kg/nm · median 59.9 (+8%)

36.2Ranks 594 of 1,045, lowest first89.2

Average speedThis ship 5.5 kn · median 10.5 (−48%)

7.5Faster than 4% of general cargo ships12.5

CO₂ per transport work (dwt)This ship 38.2 g CO₂/dwt·nm · median 20.7 (+85%)

8.03Ranks 925 of 1,045, lowest first40.8

Middle 80% of shipsMiddle 50%General cargo medianThis ship

Where the emissions happen, 2019

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 EU41%
Into the EU46%
At berth in the EU13%

Fuel burned laden

–

Not reported

CO₂ at berth

66 t

12.6% 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 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 kg/nm

QUEEN SARA
General cargo median

45.050.055.060.065.0

’182018’192019’202020’212021’222022’232023

Average speed, kn

QUEEN SARA
General cargo median

5.010.015.020.025.0

’182018’192019’202020’212021’222022’232023

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

QUEEN SARA
General cargo median

0.020.040.060.0

’182018’192019’202020’212021’222022’232023

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2022→2023	−4.1 kn	+17%	−33%	−3%	+91%	4.1 kn slower, fuel per mile up 17%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.5 kn	+12%	+7%	+4%	+14%	0.5 kn slower, fuel per mile up 12%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.0 kn	−21%	−21%	+160%	−70%	Same speed, fuel per mile down 21%; better than speed alone explains (hull, engine or trade).
2019→2020	−0.9 kn	−1%	−8%	+37%	+47%	0.9 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−9.1 kn	+23%	−33%	−85%	+103%	9.1 kn slower, fuel per mile up 23%; 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2023	not published	617	1,946	9,572	1,748	5.5	64.4	40.1	–
2022	not published	544	1,716	9,884	1,027	9.6	55.0	20.6	–
2021	not published	467	1,475	9,541	943	10.1	49.0	18.3	–
2020	not published	228	720	3,665	363	10.1	62.1	64.8	–
2019	not published	167	523	2,669	243	11.0	62.6	43.0	–
2018	not published	914	2,856	17,921	891	20.1	51.0	–	–

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	38.2	20.7	+85%	925 of 1,045	Dromon Bureau of Shipping	–
2022	not published	20.0	21.6	−7%	443 of 1,034	Dromon Bureau of Shipping	A
2021	not published	17.6	22.7	−23%	322 of 1,142	Dromon Bureau of Shipping	A
2020	not published	57.6	24.5	+135%	1,081 of 1,167	Dromon Bureau of Shipping	A
2019	not published	39.3	25.0	+58%	923 of 1,154	Dromon Bureau of Shipping	A
2018	not published	19.3	24.9	−22%	323 of 1,044	Dromon Bureau of Shipping	–

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.