Navalyze · Ro-pax · Ship

STENA FLAVIA

IMO: 9417919
Type: Ro-pax ship
Port of registry: Frederikshavn
Technical efficiency: EEXI 23.45 g CO₂/t·nm
Ice class: IA

ISM company (DoC holder) in 2025: Stena Rederi AS · part of Stena

Report year

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

119.1 kg/nm

Ro-pax median 150.2 kg/nm (−21%)

CO₂ per transport work (pax)

703

g CO₂/pax·nm · Ro-pax median 567 (+24%)

CO₂ per transport work (freight)

90.50

g CO₂/t·nm · Ro-pax median 253 (−64%)

Average speed

17.5 kn

Ro-pax median 15.8 kn (+11%)

Fuel per day at sea

50.1 t/day

Fuel consumed

14,068 t

CO₂ emitted

44,377 t

45,068 t CO₂eq incl. CH₄ and N₂O

Distance sailed

118,109 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,733 h

281 days, 77% 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 per mileThis ship 119.1 kg/nm · median 150.2 (−21%)

69.3Ranks 117 of 408, lowest first232.4

Average speedThis ship 17.5 kn · median 15.8 (+11%)

12.0Faster than 67% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 702.79 g CO₂/pax·nm · median 566.51 (+24%)

66.76Ranks 234 of 408, lowest first1,568.87

CO₂ per transport work (freight)This ship 90.50 g CO₂/t·nm · median 253.18 (−64%)

48.59Ranks 81 of 408, lowest first1,247.19

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

Where the emissions happen, 2025

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 ports96%
From the EU0%
Into the EU0%
At berth in the EU4%

100% of this ship's CO₂ falls under the EU ETS (44,377 t).

Fuel burned laden

–

Not reported

CO₂ at berth

3.5%

Alongside in EU ports

Methane (CH₄)

0.7 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

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

STENA FLAVIA
Ro-pax median

110.0120.0130.0140.0150.0160.0

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

Average speed, kn

STENA FLAVIA
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 FLAVIA
Ro-pax median

50.0100150200250300

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

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

STENA FLAVIA
Ro-pax median

4006008001,0001,200

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−0.3 kn	−1%	−3%	−1%	+1%	0.3 kn slower, fuel per mile flat.
2023→2024	+0.0 kn	−1%	−1%	+7%	−9%	Same speed, fuel per mile flat.
2022→2023	−0.5 kn	−9%	−12%	+4%	−4%	0.5 kn slower, fuel per mile down 9%; in line with the speed change.
2021→2022	+1.9 kn	+5%	+18%	+20%	+1%	1.9 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.0 kn	−4%	−4%	−5%	−32%	Same speed, fuel per mile down 4%; in line with the speed change.
2019→2020	+0.3 kn	+3%	+5%	+1%	+72%	Same speed, fuel per mile up 3%; in line with the speed change.
2018→2019	−0.4 kn	−1%	−3%	+13%	−25%	0.4 kn slower, 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
2025	Stena Rederi AS	14,068	44,377	118,109	6,733	17.5	119.1	–	–
2024	Stena Rederi AS	14,364	45,298	119,127	6,700	17.8	120.6	–	–
2023	not published	13,508	42,618	110,891	6,236	17.8	121.8	–	–
2022	not published	14,336	45,417	106,867	5,842	18.3	134.2	–	–
2021	not published	11,365	35,869	89,164	5,443	16.4	127.5	–	–
2020	not published	12,458	39,319	93,618	5,701	16.4	133.1	–	–
2019	not published	12,010	37,736	92,906	5,780	16.1	129.3	–	–
2018	not published	10,650	33,649	81,889	4,955	16.5	130.1	–	–

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	Stena Rederi AS	702.79	566.51	+24%	234 of 408	90.50	253.18	−64%	DNV	C
2024	Stena Rederi AS	693.11	546.68	+27%	233 of 404	90.95	232.85	−61%	DNV	C
2023	not published	758.44	680.04	+12%	217 of 386	101.37	233.94	−57%	DNV	C
2022	not published	787.28	626.32	+26%	222 of 394	120.10	252.90	−53%	DNV	C
2021	not published	776.24	815.19	−5%	184 of 377	153.76	226.00	−32%	DNV	C
2020	not published	1,145.71	750.91	+53%	242 of 387	132.23	217.49	−39%	Lloyd's Register	C
2019	not published	667.95	569.03	+17%	223 of 394	91.28	222.56	−59%	Lloyd's Register	–
2018	not published	891.14	728.92	+22%	208 of 361	78.89	184.05	−57%	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.