Navalyze · Ro-pax · Ship

BASTØ V

IMO: 9771432
Type: Ro-pax ship
Flag (estimated): Norway
Port of registry: Horten
Ice class: IC

ISM company (DoC holder) in 2025: Torghatten Sør AS · part of Torghatten

Report year

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel kg/nm

35.0

Ro-pax median 150 kg/nm (−77%)

CO₂ per transport work (pax)

232

g CO₂/pax·nm · Ro-pax median 567 (−59%)

CO₂ per transport work (freight)

183

g CO₂/t·nm · Ro-pax median 253 (−28%)

Average speed

10.0 kn

Ro-pax median 15.8 kn (−37%)

Fuel per day at sea

8.4 t/day

Fuel consumed

927 t

CO₂ emitted

2,972 t

3,017 t CO₂eq incl. CH₄ and N₂O

Distance sailed

26,496 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,640 h

110 days, 30% 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 35.0 kg/nm · median 150 (−77%)

69.3Ranks 9 of 408, lowest first232

Average speedThis ship 10.0 kn · median 15.8 (−37%)

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

CO₂ per transport work (pax)This ship 232 g CO₂/pax·nm · median 567 (−59%)

66.8Ranks 127 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 183 g CO₂/t·nm · median 253 (−28%)

48.6Ranks 162 of 408, lowest first1,247

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

Where the emissions happen, 2025

THETIS splits each ship's emissions 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 ports84%
From the EU0%
Into the EU0%
At berth in the EU16%

100% of this ship's CO₂ falls under the EU ETS (2,972 t).

Fuel burned laden

–

Not reported

CO₂ at berth

488 t

16.4% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+45 t

+1.5% CO₂eq on top of CO₂ alone, 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 kg/nm

BASTØ V
Ro-pax median

0.050.0100.0150.0200.0

’212021’222022’232023’242024’252025

Average speed, kn

BASTØ V
Ro-pax median

10.012.014.016.018.0

’212021’222022’232023’242024’252025

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

BASTØ V
Ro-pax median

150175200225250275

’212021’222022’232023’242024’252025

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

BASTØ V
Ro-pax median

2004006008001,000

’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	+0.0 kn	−9%	−9%	−8%	−9%	Same speed, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2023→2024	+0.0 kn	+19%	+18%	+4%	+9%	Same speed, fuel per mile up 19%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.3 kn	+2%	+0%	−11%	−0%	0.3 kn slower, fuel per mile up 2%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.1 kn	−9%	−8%	−36%	−22%	Same speed, fuel per mile down 9%; better than speed alone explains (hull, engine 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	Torghatten Sør AS	927	2,972	26,496	2,640	10.0	35.0	–	–
2024	Torghatten Sør AS	1,109	3,557	28,860	2,881	10.0	38.4	–	–
2023	not published	896	2,873	27,664	2,761	10.0	32.4	–	–
2022	not published	984	3,154	31,023	3,026	10.3	31.7	–	–
2021	not published	1,690	5,419	48,754	4,766	10.2	34.7	–	–

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
2025	Torghatten Sør AS	232	567	−59%	127 of 408	183	253	−28%	DNV	A
2024	Torghatten Sør AS	254	547	−54%	132 of 404	193	233	−17%	DNV	A
2023	not published	233	680	−66%	101 of 386	162	234	−31%	DNV	A
2022	not published	233	626	−63%	107 of 394	166	253	−34%	DNV	A
2021	not published	300	815	−63%	117 of 377	178	226	−21%	DNV	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.