Navalyze · Vehicle carrier · Ship

BYD CHANGSHA

IMO: 9993949
Type: Vehicle carrier
Average cargo carried: 4,450 t
Port of registry: Hong Kong
Technical efficiency: EEDI 9.85 g CO₂/t·nm

ISM company (DoC holder) in 2025: Wallem Shipmanagement Ltd. · part of Wallem

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 4,450 t of cargo on average.

Fuel per mile

119.9 kg/nm

Vehicle carrier median 99.9 kg/nm (+20%)

CO₂ per transport work (cargo)

84.44

g CO₂/t·nm · Vehicle carrier median 55.36 (+53%)

Average speed

12.8 kn

Vehicle carrier median 14.4 kn (−11%)

Fuel per day at sea

36.9 t/day

Fuel consumed

264 t

CO₂ emitted

828 t

871 t CO₂eq incl. CH₄ and N₂O

Distance sailed

2,204 nm

CO₂ ÷ CO₂ per mile

Time at sea

172 h

7 days, 2% of the year

Within the vehicle carrier fleet, 2025

Set against all 506 vehicle carrier 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 per mileThis ship 119.9 kg/nm · median 99.9 (+20%)

79.6Ranks 459 of 506, lowest first119.0

Average speedThis ship 12.8 kn · median 14.4 (−11%)

12.0Faster than 18% of vehicle carrier ships15.9

CO₂ per transport work (cargo)This ship 84.44 g CO₂/t·nm · median 55.36 (+53%)

34.70Ranks 376 of 506, lowest first158.48

Middle 80% of shipsMiddle 50%Vehicle carrier medianThis ship

Where the emissions happen, 2025

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 ports9%
From the EU59%
Into the EU18%
At berth in the EU14%

62% of this ship's CO₂ falls under the EU ETS (510 t).

Fuel burned laden

–

Not reported

CO₂ at berth

14.1%

Alongside in EU ports

Methane (CH₄)

1.1 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.052

Uplift from CH₄ and N₂O, counted in full from 2026

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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Wallem Shipmanagement Ltd.	264	828	2,204	172	12.8	119.9	84.44	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Vehicle carrier median	vs Vehicle carrier	Rank	Verifier	Methods
2025	Wallem Shipmanagement Ltd.	84.44	55.36	+53%	376 of 506	ABS	B+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.