Navalyze · Ro-pax · Ship

SEA WIND

IMO: 7128332
Type: Ro-pax ship
Flag (estimated): Estonia
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 kg/nm

93.5

Ro-pax median 155 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 kg/nmThis ship 93.5 kg/nm · median 155 (−40%)

80.1Ranks 61 of 377, lowest first244

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 2,068 g CO₂/pax·nm · median 815 (+154%)

66.7Ranks 334 of 377, lowest first2,181

CO₂ per transport work (freight)This ship 179 g CO₂/t·nm · median 226 (−21%)

57.6Ranks 162 of 377, lowest first1,143

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

2,002 t

19.2% 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

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	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	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	2,068	815	+154%	334 of 377	179	226	−21%	Verifavia	A
2020	not published	1,541	751	+105%	291 of 387	143	217	−34%	Verifavia	A
2019	not published	1,392	569	+145%	334 of 394	134	223	−40%	Verifavia	A
2018	not published	1,873	729	+157%	295 of 361	173	184	−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.