Navalyze · General cargo · Ship

RIZABEY

IMO: 9197117
Type: General cargo ship
Flag (estimated): Panama
Port of registry: Panama
Technical efficiency: EEXI 8.44 g CO₂/t·nm
Former names: ALTHEA

ISM company (DoC holder) in 2025: United Marine Muhendislik San.Tic.Ltd. Sti.

Report year

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel kg/nm

43.9

General cargo median 35.2 kg/nm (+25%)

CO₂ per transport work (dwt)

8.83

g CO₂/dwt·nm · General cargo median 25.5 (−65%)

Average speed

6.7 kn

General cargo median 9.3 kn (−28%)

Fuel per day at sea

7.1 t/day

Fuel consumed

593 t

CO₂ emitted

1,868 t

1,897 t CO₂eq incl. CH₄ and N₂O

Distance sailed

13,508 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,013 h

84 days, 23% 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 43.9 kg/nm · median 35.2 (+25%)

17.4Ranks 1,724 of 2,723, lowest first78.8

Average speedThis ship 6.7 kn · median 9.3 (−28%)

6.9Faster than 8% of general cargo ships12.0

CO₂ per transport work (dwt)This ship 8.83 g CO₂/dwt·nm · median 25.5 (−65%)

10.2Ranks 180 of 2,723, lowest first52.7

Middle 80% of shipsMiddle 50%General cargo medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's emissions 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 EU17%
Into the EU80%
At berth in the EU3%

51% of this ship's CO₂ falls under the EU ETS (957 t).

Fuel burned laden

–

Not reported

CO₂ at berth

47 t

2.5% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+29 t

+1.6% CO₂eq on top of CO₂ alone, 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 kg/nm

RIZABEY
General cargo median

20.040.060.080.0100.0

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

Average speed, kn

RIZABEY
General cargo median

6.08.010.012.0

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

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

RIZABEY
General cargo median

5.010.015.020.025.030.0

’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	−2.8 kn	−5%	−32%	+8%	−16%	2.8 kn slower, fuel per mile down 5%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.5 kn	−33%	−30%	−16%	−47%	0.5 kn faster, fuel per mile down 33%; better than speed alone explains (hull, engine or trade).
2022→2023	+1.7 kn	−22%	−4%	+175%	+2%	1.7 kn faster, fuel per mile down 22%; better than speed alone explains (hull, engine or trade).
2021→2022	−1.5 kn	+7%	−12%	−20%	+5%	1.5 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.9 kn	+62%	+48%	+132%	+43%	0.9 kn slower, fuel per mile up 62%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+0.4 kn	−14%	−11%	−85%	−39%	0.4 kn faster, fuel per mile down 14%; better than speed alone explains (hull, engine or trade).
2018→2019	−2.2 kn	−23%	−38%	−17%	+12%	2.2 kn slower, fuel per mile down 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
2025	United Marine Muhendislik San.Tic.Ltd. Sti.	593	1,868	13,508	2,013	6.7	43.9	–	–
2024	United Marine Muhendislik San.Tic.Ltd. Sti.	578	1,811	12,527	1,317	9.5	46.2	–	59%
2023	not published	1,028	3,229	14,896	1,659	9.0	69.0	–	50%
2022	not published	481	1,522	5,419	745	7.3	88.7	–	–
2021	not published	561	1,770	6,736	767	8.8	83.2	18.6	–
2020	not published	149	471	2,904	300	9.7	51.3	13.1	–
2019	not published	1,172	3,662	19,679	2,109	9.3	59.5	21.3	–
2018	not published	1,837	5,740	23,726	2,063	11.5	77.4	19.0	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/dwt·nm	General cargo median	vs General cargo	Rank	Verifier	Methods
2025	United Marine Muhendislik San.Tic.Ltd. Sti.	8.83	25.5	−65%	180 of 2,723	Polish Register of Shipping	B
2024	United Marine Muhendislik San.Tic.Ltd. Sti.	10.5	19.3	−46%	270 of 1,111	Polish Register of Shipping	B
2023	not published	19.9	20.7	−4%	488 of 1,045	Polish Register of Shipping	B
2022	not published	19.5	21.6	−10%	417 of 1,034	Verifavia	A
2021	not published	18.6	8.57	+117%	3,262 of 3,466	ClassNK	A
2020	not published	13.1	8.24	+58%	2,703 of 3,150	ClassNK	A
2019	not published	21.3	8.38	+154%	3,222 of 3,360	ClassNK	A
2018	not published	19.0	8.50	+124%	3,164 of 3,384	ClassNK	A

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.