Navalyze · Ro-ro · Ship

FINNWAVE

IMO: 9468932
Type: Ro-ro ship
Average cargo carried: 4,685 t
Flag (estimated): Finland
Port of registry: Helsinki
Technical efficiency: EIV 6.23 g CO₂/t·nm
Ice class: IA

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

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 4,626 t of cargo on average.

Fuel kg/nm

149

Ro-ro median 109 kg/nm (+36%)

CO₂ per transport work (cargo)

101

g CO₂/t·nm · Ro-ro median 104 (−3%)

Average speed

17.0 kn

Ro-ro median 14.8 kn (+15%)

Fuel per day at sea

60.9 t/day

Fuel consumed

12,991 t

CO₂ emitted

40,602 t

Distance sailed

87,264 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,122 h

213 days, 58% of the year

Within the ro-ro fleet, 2025

Set against all 235 ro-ro 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 157 kg/nm · median 105 (+50%)

56.6Ranks 229 of 235, lowest first145

Average speedThis ship 16.7 kn · median 14.4 (+16%)

10.9Faster than 85% of ro-ro ships17.0

CO₂ per transport work (cargo)This ship 105 g CO₂/t·nm · median 95.2 (+10%)

47.4Ranks 126 of 235, lowest first297

Middle 80% of shipsMiddle 50%Ro-ro 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 ports86%
From the EU6%
Into the EU3%
At berth in the EU6%

Fuel burned laden

–

Not reported

CO₂ at berth

2,294 t

5.7% 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-ro median is the middle ship of all ro-ro ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

FINNWAVE
Ro-ro median

100.0120.0140.0160.0180.0

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

Average speed, kn

FINNWAVE
Ro-ro median

14.016.018.020.0

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

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

FINNWAVE
Ro-ro median

80.0100120140160

’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	+0.5 kn	−1%	+2%	+4%	−10%	0.5 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2023→2024	−0.2 kn	−6%	−7%	−4%	−20%	Same speed, fuel per mile down 6%; in line with the speed change.
2022→2023	−0.3 kn	+13%	+11%	+18%	+30%	0.3 kn slower, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.3 kn	+0%	−2%	−4%	+11%	0.3 kn slower, fuel per mile flat.
2020→2021	+1.1 kn	+0%	+8%	−3%	+4%	1.1 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2019→2020	−2.7 kn	−1%	−15%	−21%	−20%	2.7 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−1.0 kn	+4%	−2%	−2%	−7%	1.0 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).

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	15,558	48,572	98,897	5,938	16.7	157	105	–
2024	Finnlines Plc	15,104	47,191	95,295	5,897	16.2	159	116	–
2023	not published	16,643	51,993	98,936	6,017	16.4	168	145	–
2022	not published	12,469	38,976	83,740	5,011	16.7	149	111	–
2021	not published	12,991	40,602	87,264	5,122	17.0	149	101	–
2020	not published	13,344	41,709	90,031	5,674	15.9	148	97.2	–
2019	not published	16,904	52,784	113,264	6,096	18.6	149	121	–
2018	not published	16,653	51,998	115,555	5,906	19.6	144	131	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2025	Finnlines Plc	105	95.2	+10%	126 of 235	RINA	B
2024	Finnlines Plc	116	97.5	+19%	124 of 220	RINA	B
2023	not published	145	109	+34%	144 of 221	RINA	B
2022	not published	111	90.6	+23%	134 of 223	RINA	A+B
2021	not published	101	104	−3%	106 of 219	RINA	–
2020	not published	97.2	103	−5%	109 of 238	RINA	A+B
2019	not published	121	90.9	+33%	173 of 271	RINA	A+B
2018	not published	131	91.0	+43%	172 of 260	RINA	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Ro-ro 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 ro-ro 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.