Navalyze · General cargo · Ship

RIO

IMO: 9039975
Type: General cargo ship
Average cargo carried: 4,093 t
Flag (estimated): Comoros
Port of registry: Moroni
Technical efficiency: EEXI 12.52 g CO₂/t·nm

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 4,093 t of cargo on average.

Fuel kg/nm

65.5

General cargo median 59.9 kg/nm (+9%)

CO₂ per transport work (dwt)

47.6

g CO₂/dwt·nm · General cargo median 20.7 (+130%)

Average speed

2.4 kn

General cargo median 10.5 kn (−77%)

Fuel per day at sea

3.8 t/day

Fuel consumed

561 t

CO₂ emitted

1,759 t

Distance sailed

8,561 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,534 h

147 days, 40% 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 65.5 kg/nm · median 59.9 (+9%)

36.2Ranks 612 of 1,045, lowest first89.2

Average speedThis ship 2.4 kn · median 10.5 (−77%)

7.5Faster than 1% of general cargo ships12.5

CO₂ per transport work (dwt)This ship 47.6 g CO₂/dwt·nm · median 20.7 (+130%)

8.03Ranks 974 of 1,045, lowest first40.8

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 ports0%
From the EU43%
Into the EU43%
At berth in the EU15%

Fuel burned laden

–

Not reported

CO₂ at berth

259 t

14.7% 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

RIO
General cargo median

55.060.065.070.075.0

’222022’232023

Average speed, kn

RIO
General cargo median

0.02.55.07.510.012.5

’222022’232023

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

RIO
General cargo median

20.030.040.050.0

’222022’232023

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2022→2023	−6.8 kn	−11%	−77%	+32%	−2%	6.8 kn slower, fuel per mile down 11%; 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	561	1,759	8,561	3,534	2.4	65.5	50.2	–
2022	not published	477	1,513	6,466	704	9.2	73.8	61.0	–

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	47.6	20.7	+130%	974 of 1,045	Dromon Bureau of Shipping	–
2022	not published	48.7	21.6	+126%	953 of 1,034	Dromon Bureau of Shipping	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.