Navalyze · Ro-pax · Ship

FINNMAID

IMO: 9319466
Type: Ro-pax ship
Flag (estimated): Finland
Port of registry: Mariehamn
Technical efficiency: EIV 3.01 g CO₂/t·nm
Ice class: IA Super

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

Report year

2022 at a glance

From the 2022 THETIS-MRV report.

Fuel kg/nm

223

Ro-pax median 157 kg/nm (+42%)

CO₂ per transport work (pax)

117

g CO₂/pax·nm · Ro-pax median 626 (−81%)

CO₂ per transport work (freight)

128

g CO₂/t·nm · Ro-pax median 253 (−49%)

Average speed

21.0 kn

Ro-pax median 16.0 kn (+31%)

Fuel per day at sea

112.8 t/day

Fuel consumed

33,031 t

CO₂ emitted

103,183 t

Distance sailed

147,968 nm

CO₂ ÷ CO₂ per mile

Time at sea

7,030 h

293 days, 80% 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 213 kg/nm · median 150 (+42%)

69.3Ranks 350 of 408, lowest first232

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

12.0Faster than 85% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 133 g CO₂/pax·nm · median 567 (−76%)

66.8Ranks 94 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 122 g CO₂/t·nm · median 253 (−52%)

48.6Ranks 116 of 408, lowest first1,247

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

Where the emissions happen, 2022

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 ports97%
From the EU0%
Into the EU0%
At berth in the EU3%

Fuel burned laden

–

Not reported

CO₂ at berth

2,611 t

2.5% 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

FINNMAID
Ro-pax median

150.0175.0200.0225.0250.0

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

Average speed, kn

FINNMAID
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

FINNMAID
Ro-pax median

100150200250300

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

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

FINNMAID
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	−0.1 kn	−2%	−3%	+6%	+8%	Same speed, fuel per mile down 2%; in line with the speed change.
2023→2024	+0.1 kn	+4%	+4%	−4%	+9%	Same speed, fuel per mile up 4%; in line with the speed change.
2022→2023	−0.5 kn	−5%	−8%	−2%	−3%	0.5 kn slower, fuel per mile down 5%; in line with the speed change.
2021→2022	−0.3 kn	−2%	−3%	+2%	+22%	0.3 kn slower, fuel per mile down 2%; in line with the speed change.
2020→2021	+0.2 kn	+1%	+2%	−2%	−16%	Same speed, fuel per mile flat.
2019→2020	−0.1 kn	+1%	+1%	+4%	−9%	Same speed, fuel per mile flat.
2018→2019	+0.0 kn	−4%	−4%	+1%	+13%	Same speed, fuel per mile down 4%; 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	Finnlines Plc	31,622	98,717	148,268	7,234	20.5	213	–	–
2024	Finnlines Plc	30,546	95,363	139,688	6,784	20.6	219	–	–
2023	not published	30,579	95,405	144,880	7,081	20.5	211	–	–
2022	not published	33,031	103,183	147,968	7,030	21.0	223	–	–
2021	not published	33,047	103,118	144,397	6,794	21.3	229	–	–
2020	not published	33,502	104,532	147,766	6,995	21.1	227	–	–
2019	not published	32,004	99,886	142,559	6,720	21.2	225	–	–
2018	not published	33,167	103,509	141,712	6,683	21.2	234	–	–

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	133	567	−76%	94 of 408	122	253	−52%	RINA	B
2024	Finnlines Plc	123	547	−77%	96 of 404	122	233	−48%	RINA	B
2023	not published	113	680	−83%	66 of 386	128	234	−45%	RINA	B
2022	not published	117	626	−81%	79 of 394	128	253	−49%	RINA	A
2021	not published	95.7	815	−88%	60 of 377	129	226	−43%	RINA	–
2020	not published	114	751	−85%	78 of 387	148	217	−32%	RINA	A+B
2019	not published	125	569	−78%	87 of 394	137	223	−39%	RINA	A
2018	not published	111	729	−85%	70 of 361	147	184	−20%	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.