Navalyze · Ro-pax · Ship

STENA HORIZON

IMO: 9332559
Type: Ro-pax ship
Flag (estimated): Cyprus
Port of registry: Limassol
Technical efficiency: EEXI 28.67 g CO₂/t·nm

ISM company (DoC holder) in 2025: Stena Line Ltd · part of Stena

Report year

2020 at a glance

From the 2020 THETIS-MRV report.

Fuel kg/nm

161

Ro-pax median 157 kg/nm (+3%)

CO₂ per transport work (pax)

1,624

g CO₂/pax·nm · Ro-pax median 751 (+116%)

CO₂ per transport work (freight)

171

g CO₂/t·nm · Ro-pax median 217 (−22%)

Average speed

17.1 kn

Ro-pax median 15.8 kn (+8%)

Fuel per day at sea

66.0 t/day

Fuel consumed

13,358 t

CO₂ emitted

42,149 t

Distance sailed

82,903 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,861 h

203 days, 55% 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 145 kg/nm · median 150 (−4%)

69.3Ranks 180 of 408, lowest first232

Average speedThis ship 18.1 kn · median 15.8 (+15%)

12.0Faster than 71% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 754 g CO₂/pax·nm · median 567 (+33%)

66.8Ranks 249 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 120 g CO₂/t·nm · median 253 (−52%)

48.6Ranks 114 of 408, lowest first1,247

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

Where the emissions happen, 2020

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 ports94%
From the EU0%
Into the EU0%
At berth in the EU6%

Fuel burned laden

–

Not reported

CO₂ at berth

2,630 t

6.2% 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

STENA HORIZON
Ro-pax median

140.0145.0150.0155.0160.0165.0

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

Average speed, kn

STENA HORIZON
Ro-pax median

15.016.017.018.019.0

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

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

STENA HORIZON
Ro-pax median

50.0100150200250300

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

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

STENA HORIZON
Ro-pax median

5001,0001,5002,000

’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	+0.8 kn	−1%	+3%	+19%	+1%	0.8 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2023→2024	−0.7 kn	−4%	−8%	−8%	+20%	0.7 kn slower, fuel per mile down 4%; in line with the speed change.
2022→2023	+0.1 kn	+1%	+1%	+11%	+12%	Same speed, fuel per mile flat.
2021→2022	+0.3 kn	−1%	+0%	−7%	−48%	Same speed, fuel per mile flat.
2020→2021	+0.5 kn	−4%	−2%	+8%	−34%	0.5 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2019→2020	−0.7 kn	+4%	+0%	−13%	+126%	0.7 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.2 kn	+6%	+7%	−9%	−25%	Same speed, fuel per mile up 6%; in line with the speed change.

Part-year reports are left out of these comparisons. 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
2025part-year	Stena Line Ltd	3,854	12,137	24,313	1,388	17.5	159	–	–
2025	Stena Rederi AS	14,737	46,484	101,862	5,625	18.1	145	–	–
2024	Stena Line Ltd	12,489	39,478	85,305	4,925	17.3	146	–	–
2023	not published	14,155	44,706	92,618	5,157	18.0	153	–	–
2022	not published	12,627	39,884	83,235	4,661	17.9	152	–	–
2021	not published	13,714	43,204	89,128	5,077	17.6	154	–	–
2020	not published	13,358	42,149	82,903	4,861	17.1	161	–	–
2019	not published	14,808	46,740	95,592	5,384	17.8	155	–	–
2018	not published	15,298	48,326	105,171	5,960	17.6	146	–	–

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
2025part-year	Stena Line Ltd	–	–	–	–	–	–	–	DNV	A
2025	Stena Rederi AS	754	567	+33%	249 of 408	120	253	−52%	DNV	B
2024	Stena Line Ltd	750	547	+37%	246 of 404	195	233	−16%	DNV	A
2023	not published	627	680	−8%	181 of 386	180	234	−23%	DNV	A
2022	not published	561	626	−10%	185 of 394	168	253	−34%	DNV	A
2021	not published	1,075	815	+32%	242 of 377	168	226	−26%	DNV	A
2020	not published	1,624	751	+116%	300 of 387	171	217	−22%	Lloyd's Register	B
2019	not published	720	569	+27%	229 of 394	104	223	−53%	Lloyd's Register	–
2018	not published	954	729	+31%	218 of 361	97.8	184	−47%	Lloyd's Register	C

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.