Navalyze · Vehicle carrier · Ship

MERCURY LEADER

IMO: 9392353
Type: Vehicle carrier
Average cargo carried: 4,256 t
Flag (estimated): Japan
Port of registry: Tokyo
Technical efficiency: EIV 22.58 g CO₂/t·nm

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 2,518 t of cargo on average.

Fuel kg/nm

75.8

Vehicle carrier median 103 kg/nm (−27%)

CO₂ per transport work (cargo)

94.9

g CO₂/t·nm · Vehicle carrier median 59.6 (+59%)

Average speed

14.1 kn

Vehicle carrier median 14.4 kn (−2%)

Fuel per day at sea

25.6 t/day

Fuel consumed

971 t

CO₂ emitted

3,059 t

Distance sailed

12,805 nm

CO₂ ÷ CO₂ per mile

Time at sea

909 h

38 days, 10% 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 77.9 kg/nm · median 108 (−28%)

84.1Ranks 29 of 463, lowest first133

Average speedThis ship 8.5 kn · median 14.4 (−41%)

11.8Faster than 1% of vehicle carrier ships16.2

CO₂ per transport work (cargo)This ship 57.9 g CO₂/t·nm · median 57.7 (+0%)

40.4Ranks 234 of 463, lowest first122

Middle 80% of shipsMiddle 50%Vehicle carrier medianThis ship

Where the emissions happen, 2021

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 EU46%
Into the EU53%
At berth in the EU1%

Fuel burned laden

–

Not reported

CO₂ at berth

33 t

1.1% 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

MERCURY LEADER
Vehicle carrier median

70.080.090.0100.0110.0

’212021’222022

Average speed, kn

MERCURY LEADER
Vehicle carrier median

8.010.012.014.016.0

’212021’222022

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

MERCURY LEADER
Vehicle carrier median

50.060.070.080.090.0100

’212021’222022

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2021→2022	−5.6 kn	+3%	−38%	−91%	−39%	5.6 kn slower, fuel per mile up 3%; 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
2022	not published	89	282	1,143	134	8.5	77.9	57.9	–
2021	not published	971	3,059	12,805	909	14.1	75.8	94.9	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Vehicle carrier median	vs Vehicle carrier	Rank	Verifier	Methods
2022	not published	57.9	57.7	+0%	234 of 463	ClassNK	C
2021	not published	94.9	59.6	+59%	383 of 459	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.