Navalyze · Vehicle carrier · Ship

RHEA LEADER

IMO: 9355214
Type: Vehicle carrier
Average cargo carried: 71 t
Flag (estimated): Japan
Port of registry: Tokyo
Technical efficiency: EIV 16.21 g CO₂/t·nm

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 6,509 t of cargo on average.

Fuel kg/nm

102

Vehicle carrier median 102 kg/nm (+0%)

CO₂ per transport work (cargo)

49.8

g CO₂/t·nm · Vehicle carrier median 57.3 (−13%)

Average speed

12.8 kn

Vehicle carrier median 13.7 kn (−7%)

Fuel per day at sea

31.4 t/day

Fuel consumed

2,108 t

CO₂ emitted

6,672 t

Distance sailed

20,598 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,613 h

67 days, 18% of the year

Within the vehicle carrier fleet, 2022

Set against all 463 vehicle carrier ships with a full-year 2022 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 103 kg/nm · median 108 (−4%)

84.1Ranks 190 of 463, lowest first133

Average speedThis ship 14.6 kn · median 14.4 (+1%)

11.8Faster than 56% of vehicle carrier ships16.2

CO₂ per transport work (cargo)This ship 46.5 g CO₂/t·nm · median 57.7 (−19%)

40.4Ranks 116 of 463, lowest first122

Middle 80% of shipsMiddle 50%Vehicle carrier medianThis ship

Where the emissions happen, 2020

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 ports24%
From the EU61%
Into the EU9%
At berth in the EU6%

Fuel burned laden

–

Not reported

CO₂ at berth

395 t

5.9% 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 Vehicle carrier median is the middle ship of all vehicle carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

RHEA LEADER
Vehicle carrier median

80.090.0100.0110.0

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

Average speed, kn

RHEA LEADER
Vehicle carrier median

12.013.014.015.016.0

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

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

RHEA LEADER
Vehicle carrier median

40.045.050.055.060.065.0

’182018’192019’202020’212021’222022

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2022→2023	−1.1 kn	−20%	−26%	−25%	–	1.1 kn slower, fuel per mile down 20%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.8 kn	+5%	+12%	+10%	−7%	0.8 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).
2020→2021	+1.0 kn	−4%	+3%	−30%	−0%	1.0 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2019→2020	−3.0 kn	−3%	−21%	−25%	−3%	3.0 kn slower, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+1.2 kn	+10%	+18%	+8%	+15%	1.2 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	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	979	3,090	11,915	880	13.5	82.2	3,670	–
2022	not published	1,630	5,157	15,832	1,085	14.6	103	46.5	–
2021	not published	1,405	4,449	14,369	1,045	13.8	97.8	49.7	–
2020	not published	2,108	6,672	20,598	1,613	12.8	102	49.8	–
2019	not published	2,871	8,996	27,336	1,731	15.8	105	51.2	–
2018	not published	2,431	7,611	25,382	1,734	14.6	95.8	44.6	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Vehicle carrier median	vs Vehicle carrier	Rank	Verifier	Methods
2023	not published	–	–	–	–	ClassNK	C
2022	not published	46.5	57.7	−19%	116 of 463	ClassNK	C
2021	not published	49.7	59.6	−17%	130 of 459	ClassNK	C
2020	not published	49.8	57.3	−13%	148 of 449	ClassNK	C
2019	not published	51.2	59.0	−13%	125 of 426	ClassNK	C
2018	not published	44.6	62.4	−28%	35 of 434	ClassNK	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Vehicle carrier ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·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 vehicle carrier 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.