Navalyze · Ro-pax · Ship

W.B. YEATS

IMO: 9809679
Type: Ro-pax ship
Flag (estimated): Cyprus
Port of registry: Limassol
Technical efficiency: EEXI 18.50 g CO₂/t·nm
Former names: W. B. YEATS

ISM company (DoC holder) in 2025: Matrix Ship Management LTD

Report year

2021 at a glance

From the 2021 THETIS-MRV report.

Fuel kg/nm

246

Ro-pax median 155 kg/nm (+59%)

CO₂ per transport work (pax)

1,491

g CO₂/pax·nm · Ro-pax median 815 (+83%)

CO₂ per transport work (freight)

147

g CO₂/t·nm · Ro-pax median 226 (−35%)

Average speed

18.0 kn

Ro-pax median 16.2 kn (+11%)

Fuel per day at sea

106.2 t/day

Fuel consumed

29,300 t

CO₂ emitted

91,311 t

Distance sailed

119,135 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,619 h

276 days, 76% 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 247 kg/nm · median 150 (+65%)

69.3Ranks 387 of 408, lowest first232

Average speedThis ship 20.0 kn · median 15.8 (+27%)

12.0Faster than 84% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 182 g CO₂/pax·nm · median 567 (−68%)

66.8Ranks 112 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 274 g CO₂/t·nm · median 253 (+8%)

48.6Ranks 210 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 ports90%
From the EU3%
Into the EU3%
At berth in the EU4%

Fuel burned laden

–

Not reported

CO₂ at berth

3,716 t

4.1% 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

W.B. YEATS
Ro-pax median

150.0200.0250.0300.0

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

Average speed, kn

W.B. YEATS
Ro-pax median

14.016.018.020.0

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

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

W.B. YEATS
Ro-pax median

0.0100200300

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

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

W.B. YEATS
Ro-pax median

0.05001,0001,500

’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	+0.4 kn	−3%	−1%	+2%	−7%	0.4 kn faster, fuel per mile down 3%; better than speed alone explains (hull, engine or trade).
2023→2024	+0.1 kn	−5%	−4%	+7%	+5%	Same speed, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.1 kn	+6%	+7%	−6%	+553%	Same speed, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+1.4 kn	+2%	+10%	−2%	−98%	1.4 kn faster, fuel per mile up 2%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.1 kn	+2%	+3%	+22%	+363,585%	Same speed, fuel per mile flat.
2019→2020	−1.4 kn	−1%	−9%	−5%	−85%	1.4 kn slower, fuel per mile flat; 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	Matrix Ship Management LTD	29,497	91,981	119,209	5,971	20.0	247	–	–
2024	Matrix Ship Management LTD	29,903	93,195	117,175	5,964	19.6	255	–	–
2023	not published	29,278	91,327	109,479	5,620	19.5	267	–	–
2022	not published	29,453	91,866	116,941	6,024	19.4	252	–	–
2021	not published	29,300	91,311	119,135	6,619	18.0	246	–	–
2020	not published	23,671	73,763	97,953	5,486	17.9	242	–	–
2019	not published	25,223	78,596	103,138	5,336	19.3	245	–	–

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	Matrix Ship Management LTD	182	567	−68%	112 of 408	274	253	+8%	DNV	B+C
2024	Matrix Ship Management LTD	196	547	−64%	122 of 404	239	233	+3%	DNV	B+C
2023	not published	186	680	−73%	91 of 386	265	234	+13%	DNV	B+C
2022	not published	28.6	626	−95%	18 of 394	269	253	+6%	DNV	B+C
2021	not published	1,491	815	+83%	310 of 377	147	226	−35%	DNV	B
2020	not published	0.41	751	−100%	7 of 387	0.33	217	−100%	Lloyd's Register	B
2019	not published	2.66	569	−100%	20 of 394	0.55	223	−100%	Lloyd's Register	B

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.