Navalyze · Ro-pax · Ship

FINNSTAR

IMO: 9319442
Type: Ro-pax ship
Flag (estimated): Finland
Port of registry: Mariehamn
Technical efficiency: EIV 3.96 g CO₂/t·nm
Ice class: IA Super

ISM company (DoC holder) in 2025: Finnlines Plc · part of Grimaldi Group

Report year

2021 at a glance

From the 2021 THETIS-MRV report.

Fuel kg/nm

227

Ro-pax median 155 kg/nm (+47%)

CO₂ per transport work (pax)

99.5

g CO₂/pax·nm · Ro-pax median 815 (−88%)

CO₂ per transport work (freight)

127

g CO₂/t·nm · Ro-pax median 226 (−44%)

Average speed

21.2 kn

Ro-pax median 16.2 kn (+31%)

Fuel per day at sea

115.7 t/day

Fuel consumed

33,016 t

CO₂ emitted

103,055 t

Distance sailed

145,328 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,851 h

285 days, 78% 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 209 kg/nm · median 150 (+39%)

69.3Ranks 346 of 408, lowest first232

Average speedThis ship 20.5 kn · median 15.8 (+30%)

12.0Faster than 86% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 135 g CO₂/pax·nm · median 567 (−76%)

66.8Ranks 95 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 118 g CO₂/t·nm · median 253 (−53%)

48.6Ranks 111 of 408, lowest first1,247

Middle 80% of shipsMiddle 50%Ro-pax 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 ports98%
From the EU0%
Into the EU0%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

1,948 t

1.9% 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 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

FINNSTAR
Ro-pax median

140.0160.0180.0200.0220.0240.0

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

Average speed, kn

FINNSTAR
Ro-pax median

14.016.018.020.022.0

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

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

FINNSTAR
Ro-pax median

100150200250300

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

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

FINNSTAR
Ro-pax median

0.02004006008001,000

’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	+0.0 kn	−2%	−2%	+2%	+7%	Same speed, fuel per mile flat.
2023→2024	+0.1 kn	+2%	+2%	−0%	+14%	Same speed, fuel per mile flat.
2022→2023	−0.6 kn	−6%	−9%	−5%	+7%	0.6 kn slower, fuel per mile down 6%; in line with the speed change.
2021→2022	−0.2 kn	−2%	−3%	+2%	+3%	Same speed, fuel per mile flat.
2020→2021	+0.2 kn	+1%	+2%	+1%	−13%	Same speed, fuel per mile flat.
2019→2020	+0.0 kn	−2%	−2%	−1%	−9%	Same speed, fuel per mile flat.
2018→2019	−0.2 kn	−0%	−1%	+8%	−1%	Same speed, fuel per mile flat.

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	Finnlines Plc	30,197	94,262	144,489	7,041	20.5	209	–	–
2024	Finnlines Plc	30,140	94,077	141,404	6,900	20.5	213	–	–
2023	not published	29,702	92,701	141,775	6,934	20.4	210	–	–
2022	not published	33,177	103,526	148,533	7,063	21.0	223	–	–
2021	not published	33,016	103,055	145,328	6,851	21.2	227	–	–
2020	not published	32,211	100,631	143,699	6,833	21.0	224	–	–
2019	not published	33,305	103,929	145,817	6,945	21.0	228	–	–
2018	not published	30,948	96,584	135,090	6,385	21.2	229	–	–

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	Finnlines Plc	135	567	−76%	95 of 408	118	253	−53%	RINA	B
2024	Finnlines Plc	126	547	−77%	97 of 404	119	233	−49%	RINA	B
2023	not published	110	680	−84%	63 of 386	127	234	−46%	RINA	B
2022	not published	102	626	−84%	72 of 394	128	253	−49%	RINA	A
2021	not published	99.5	815	−88%	61 of 377	127	226	−44%	RINA	–
2020	not published	115	751	−85%	80 of 387	148	217	−32%	RINA	A+B
2019	not published	126	569	−78%	89 of 394	141	223	−36%	RINA	A+B
2018	not published	127	729	−83%	76 of 361	142	184	−23%	RINA	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.