Navalyze · Gas carrier (LPG) · Ship

GASCHEM ALSTER

IMO: 9961714
Type: Gas carrier
Average cargo carried: 2,452 t
Port of registry: Madeira
Technical efficiency: EEXI 14.70 g CO₂/t·nm

ISM company (DoC holder) in 2025: Hartmann Gas Carriers Germany GmbH & Co. KG

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 2,452 t of cargo on average.

Fuel per mile

42.2 kg/nm

Gas carrier (LPG) median 81.5 kg/nm (−48%)

CO₂ per transport work (cargo)

54.22

g CO₂/t·nm · Gas carrier (LPG) median 35.56 (+52%)

Average speed

12.6 kn

Gas carrier (LPG) median 12.6 kn (+0%)

Fuel per day at sea

12.8 t/day

Fuel consumed

1,353 t

CO₂ emitted

4,258 t

4,325 t CO₂eq incl. CH₄ and N₂O

Distance sailed

32,031 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,538 h

106 days, 29% of the year

Within the gas carrier (LPG) fleet, 2025

Set against all 355 gas carrier (LPG) 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 42.2 kg/nm · median 81.5 (−48%)

49.8Ranks 9 of 355, lowest first124.4

Average speedThis ship 12.6 kn · median 12.6 (+0%)

8.8Faster than 50% of gas carrier (LPG) ships14.6

CO₂ per transport work (cargo)This ship 54.22 g CO₂/t·nm · median 35.56 (+52%)

14.36Ranks 235 of 355, lowest first120.18

Middle 80% of shipsMiddle 50%Gas carrier (LPG) 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 ports22%
From the EU34%
Into the EU41%
At berth in the EU2%

62% of this ship's CO₂ falls under the EU ETS (2,652 t).

Fuel burned laden

–

Not reported

CO₂ at berth

2.1%

Alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

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	Hartmann Gas Carriers Germany GmbH & Co. KG	1,353	4,258	32,031	2,538	12.6	42.2	54.22	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Gas carrier (LPG) median	vs Gas carrier (LPG)	Rank	Verifier	Methods
2025	Hartmann Gas Carriers Germany GmbH & Co. KG	54.22	35.56	+52%	235 of 355	DNV	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Gas carrier (LPG) 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 gas carrier (LPG) 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.