Navalyze · General cargo · Ship

SIRUS SKY

IMO: 9648738
Type: General cargo ship
Flag (estimated): Liberia
Port of registry: Monrovia
Technical efficiency: EEXI 12.30 g CO₂/t·nm

ISM company (DoC holder) in 2025: SIRUS SHIPPING LTD

Report year

2023 at a glance

From the 2023 THETIS-MRV report.

Fuel kg/nm

38.6

General cargo median 59.9 kg/nm (−36%)

CO₂ per transport work (dwt)

23.2

g CO₂/dwt·nm · General cargo median 20.7 (+12%)

Average speed

8.7 kn

General cargo median 10.5 kn (−17%)

Fuel per day at sea

8.1 t/day

Fuel consumed

124 t

CO₂ emitted

394 t

Distance sailed

3,215 nm

CO₂ ÷ CO₂ per mile

Time at sea

368 h

15 days, 4% of the year

Within the general cargo fleet, 2025

Set against all 2,723 general cargo 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 23.2 kg/nm · median 35.2 (−34%)

17.4Ranks 651 of 2,723, lowest first78.8

Average speedThis ship 6.3 kn · median 9.3 (−32%)

6.9Faster than 6% of general cargo ships12.0

CO₂ per transport work (dwt)This ship 14.8 g CO₂/dwt·nm · median 25.5 (−42%)

10.2Ranks 457 of 2,723, lowest first52.7

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 EU42%
Into the EU39%
At berth in the EU11%

Fuel burned laden

100 t

81% of all fuel; 19% in ballast or unladen

CO₂ at berth

43 t

11.0% 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

SIRUS SKY
General cargo median

20.030.040.050.060.0

’232023’242024’252025

Average speed, kn

SIRUS SKY
General cargo median

6.08.010.012.0

’232023’242024’252025

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

SIRUS SKY
General cargo median

10.015.020.025.030.0

’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	−2.8 kn	+13%	−22%	−9%	−5%	2.8 kn slower, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.4 kn	−47%	−44%	+820%	−33%	0.4 kn faster, fuel per mile down 47%; 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	SIRUS SHIPPING LTD	629	2,017	27,055	4,301	6.3	23.2	–	–
2024	SIRUS SHIPPING LTD	607	1,948	29,576	3,267	9.1	20.5	–	64%
2023	not published	124	394	3,215	368	8.7	38.6	–	81%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/dwt·nm	General cargo median	vs General cargo	Rank	Verifier	Methods
2025	SIRUS SHIPPING LTD	14.8	25.5	−42%	457 of 2,723	Polish Register of Shipping	B
2024	SIRUS SHIPPING LTD	15.6	19.3	−19%	428 of 1,111	Polish Register of Shipping	B
2023	not published	23.2	20.7	+12%	628 of 1,045	Polish Register of Shipping	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.