Navalyze · Ro-pax · Ship

HUCKLEBERRY FINN

IMO: 8618358
Type: Ro-pax ship
Flag (estimated): Sweden
Port of registry: Trelleborg
Technical efficiency: EEXI 25.93 g CO₂/t·nm
Ice class: IA

ISM company (DoC holder) in 2025: TT-Line GmbH & Co KG

Report year

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm

139

Ro-pax median 158 kg/nm (−12%)

CO₂ per transport work (pax)

1,328

g CO₂/pax·nm · Ro-pax median 729 (+82%)

CO₂ per transport work (freight)

100.0

g CO₂/t·nm · Ro-pax median 184 (−46%)

Average speed

13.7 kn

Ro-pax median 16.1 kn (−15%)

Fuel per day at sea

45.7 t/day

Fuel consumed

11,756 t

CO₂ emitted

37,046 t

Distance sailed

84,369 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,179 h

257 days, 71% of the year

Within the ro-pax fleet, 2025

Set against all 408 ro-pax 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 kg/nmThis ship 132 kg/nm · median 150 (−12%)

69.3Ranks 144 of 408, lowest first232

Average speedThis ship 12.7 kn · median 15.8 (−20%)

12.0Faster than 14% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 1,021 g CO₂/pax·nm · median 567 (+80%)

66.8Ranks 306 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 93.5 g CO₂/t·nm · median 253 (−63%)

48.6Ranks 85 of 408, lowest first1,247

Middle 80% of shipsMiddle 50%Ro-pax medianThis ship

Where the emissions happen, 2018

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 ports92%
From the EU0%
Into the EU0%
At berth in the EU8%

Fuel burned laden

–

Not reported

CO₂ at berth

2,782 t

7.5% 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 Ro-pax median is the middle ship of all ro-pax ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

HUCKLEBERRY FINN
Ro-pax median

120.0130.0140.0150.0160.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

HUCKLEBERRY FINN
Ro-pax median

12.013.014.015.016.017.0

’182018’192019’202020’212021’222022’232023’242024’252025

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

HUCKLEBERRY FINN
Ro-pax median

50.0100150200250300

’182018’192019’202020’212021’222022’232023’242024’252025

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

HUCKLEBERRY FINN
Ro-pax median

4006008001,0001,2001,400

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.2 kn	+4%	−6%	+8%	−7%	1.2 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.8 kn	−1%	+5%	−2%	−9%	0.8 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023	−1.5 kn	+4%	−6%	−13%	+14%	1.5 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.3 kn	−4%	−5%	−9%	+0%	0.3 kn slower, fuel per mile down 4%; in line with the speed change.
2020→2021	+0.4 kn	+5%	+7%	+5%	−9%	0.4 kn faster, fuel per mile up 5%; in line with the speed change.
2019→2020	+1.0 kn	−5%	+2%	+7%	−1%	1.0 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.2 kn	−7%	−8%	−2%	−12%	Same speed, fuel per mile down 7%; in line with the speed change.

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
2025	TT-Line GmbH & Co KG	10,358	32,640	78,477	6,200	12.7	132	–	–
2024	TT-Line GmbH & Co KG	9,284	29,261	72,844	5,229	13.9	128	–	–
2023	not published	9,569	30,154	74,222	5,685	13.1	129	–	–
2022	not published	10,540	33,213	85,223	5,857	14.6	124	–	–
2021	not published	11,990	37,783	93,557	6,292	14.9	128	–	–
2020	not published	10,938	34,467	89,218	6,135	14.5	123	–	–
2019	not published	10,770	33,936	83,052	6,136	13.5	130	–	–
2018	not published	11,756	37,046	84,369	6,179	13.7	139	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/pax·nm	Ro-pax median	vs Ro-pax	Rank	Freight, g CO₂/t·nm	Ro-pax median	vs Ro-pax	Verifier	Methods
2025	TT-Line GmbH & Co KG	1,021	567	+80%	306 of 408	93.5	253	−63%	Verifavia	C
2024	TT-Line GmbH & Co KG	1,097	547	+101%	309 of 404	94.9	233	−59%	Verifavia	A
2023	not published	1,202	680	+77%	314 of 386	94.9	234	−59%	Verifavia	A
2022	not published	1,056	626	+69%	280 of 394	105	253	−58%	Verifavia	A
2021	not published	1,051	815	+29%	235 of 377	100	226	−56%	Verifavia	A
2020	not published	1,157	751	+54%	245 of 387	106	217	−51%	Verifavia	A
2019	not published	1,174	569	+106%	314 of 394	98.3	223	−56%	DNV	A
2018	not published	1,328	729	+82%	259 of 361	100.0	184	−46%	DNV	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Ro-pax ships are benchmarked on CO₂ per transport work (pax) (TW), in g CO₂/pax·nm, and also per tonne of freight (g CO₂/t·nm freight). CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's ro-pax 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.