Navalyze · Ro-pax · Ship

SEA WIND

IMO: 7128332
Type: Ro-pax ship
Port of registry: Tallinn
Technical efficiency: EIV 9.29 g CO₂/t·nm
Ice class: IB

Report year

2021 at a glance

From the 2021 THETIS-MRV report.

Fuel per mile

93.5 kg/nm

Ro-pax median 154.7 kg/nm (−40%)

CO₂ per transport work (pax)

2,068

g CO₂/pax·nm · Ro-pax median 815 (+154%)

CO₂ per transport work (freight)

179

g CO₂/t·nm · Ro-pax median 226 (−21%)

Average speed

12.9 kn

Ro-pax median 16.2 kn (−20%)

Fuel per day at sea

28.9 t/day

Fuel consumed

3,300 t

CO₂ emitted

10,454 t

Distance sailed

35,305 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,737 h

114 days, 31% of the year

Within the ro-pax fleet, 2021

Set against all 377 ro-pax ships with a full-year 2021 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 93.5 kg/nm · median 154.7 (−40%)

80.1Ranks 61 of 377, lowest first244.2

Average speedThis ship 12.9 kn · median 16.2 (−20%)

12.3Faster than 15% of ro-pax ships23.2

CO₂ per transport work (pax)This ship 2,067.86 g CO₂/pax·nm · median 815.19 (+154%)

66.71Ranks 334 of 377, lowest first2,181.42

CO₂ per transport work (freight)This ship 178.98 g CO₂/t·nm · median 226.00 (−21%)

57.62Ranks 162 of 377, lowest first1,142.65

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 ports81%
From the EU0%
Into the EU0%
At berth in the EU19%

Fuel burned laden

–

Not reported

CO₂ at berth

19.2%

Alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

–

Uplift from CH₄ and N₂O, counted in full from 2026

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 per mile, kg/nm

SEA WIND
Ro-pax median

80.0100.0120.0140.0160.0

’182018’192019’202020’212021

Average speed, kn

SEA WIND
Ro-pax median

12.013.014.015.016.017.0

’182018’192019’202020’212021

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

SEA WIND
Ro-pax median

125150175200225250

’182018’192019’202020’212021

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

SEA WIND
Ro-pax median

5001,0001,5002,0002,500

’182018’192019’202020’212021

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2020→2021	−0.3 kn	+8%	+5%	−26%	+34%	Same speed, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+0.4 kn	+3%	+6%	−2%	+11%	0.4 kn faster, fuel per mile up 3%; in line with the speed change.
2018→2019	−0.1 kn	+0%	+0%	+1%	−26%	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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2021	not published	3,300	10,454	35,305	2,737	12.9	93.5	–	–
2020	not published	4,153	13,138	47,933	3,619	13.2	86.6	–	–
2019	not published	4,123	13,047	49,157	3,826	12.8	83.9	–	–
2018	not published	4,080	12,912	48,726	3,787	12.9	83.7	–	–

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
2021	not published	2,067.86	815.19	+154%	334 of 377	178.98	226.00	−21%	Verifavia	A
2020	not published	1,540.58	750.91	+105%	291 of 387	143.45	217.49	−34%	Verifavia	A
2019	not published	1,391.76	569.03	+145%	334 of 394	134.36	222.56	−40%	Verifavia	A
2018	not published	1,873.44	728.92	+157%	295 of 361	172.77	184.05	−6%	Verifavia	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.