Navalyze · Ro-ro · Ship

STENA HIBERNIA

IMO: 9121637
Type: Ro-ro ship
Average cargo carried: 764 t
Flag (estimated): United Kingdom
Port of registry: London
Technical efficiency: EEXI 18.91 g CO₂/t·nm

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

Report year

2019 at a glance

From the 2019 THETIS-MRV report. Carries about 2,693 t of cargo on average.

Fuel kg/nm

99.4

Ro-ro median 107 kg/nm (−7%)

CO₂ per transport work (cargo)

115

g CO₂/t·nm · Ro-ro median 90.9 (+27%)

Average speed

15.5 kn

Ro-ro median 14.8 kn (+5%)

Fuel per day at sea

36.9 t/day

Fuel consumed

6,793 t

CO₂ emitted

21,230 t

Distance sailed

68,344 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,418 h

184 days, 50% 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 176 kg/nm · median 105 (+68%)

56.6Ranks 234 of 235, lowest first145

Average speedThis ship 10.8 kn · median 14.4 (−25%)

10.9Faster than 9% of ro-ro ships17.0

CO₂ per transport work (cargo)This ship 729 g CO₂/t·nm · median 95.2 (+666%)

47.4Ranks 230 of 235, lowest first297

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

Where the emissions happen, 2019

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 ports87%
From the EU0%
Into the EU0%
At berth in the EU13%

Fuel burned laden

5,917 t

87% of all fuel; 13% in ballast or unladen

CO₂ at berth

2,787 t

13.1% 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-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

STENA HIBERNIA
Ro-ro median

80.0100.0120.0140.0160.0180.0

’182018’192019’202020’252025

Average speed, kn

STENA HIBERNIA
Ro-ro median

10.012.014.016.0

’182018’192019’202020’252025

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

STENA HIBERNIA
Ro-ro median

0.0200400600800

’192019’202020’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2020→2025	−4.1 kn	+53%	+10%	−98%	+370%	4.1 kn slower, fuel per mile up 53%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.6 kn	+16%	+12%	+6%	+35%	0.6 kn slower, fuel per mile up 16%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.1 kn	+2%	+2%	+1%	–	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
2025	Stena Line Ltd	308	973	1,746	162	10.8	176	729	–
2020	not published	8,332	26,070	72,325	4,840	14.9	115	155	90%
2019	not published	6,793	21,230	68,344	4,418	15.5	99.4	115	87%
2018	not published	6,603	20,693	67,491	4,379	15.4	97.8	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2025	Stena Line Ltd	729	95.2	+666%	230 of 235	DNV	C
2020	not published	155	103	+51%	161 of 238	Lloyd's Register	C
2019	not published	115	90.9	+27%	167 of 271	Lloyd's Register	–
2018	not published	–	–	–	–	Lloyd's Register	C

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.