Navalyze · Ro-pax · Ship

BASTØ I

IMO: 9144081
Type: Ro-pax ship
Flag (estimated): Norway
Port of registry: Moss
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

49.9

Ro-pax median 150 kg/nm (−67%)

CO₂ per transport work (pax)

457

g CO₂/pax·nm · Ro-pax median 567 (−19%)

CO₂ per transport work (freight)

261

g CO₂/t·nm · Ro-pax median 253 (+3%)

Average speed

9.9 kn

Ro-pax median 15.8 kn (−37%)

Fuel per day at sea

11.9 t/day

Fuel consumed

746 t

CO₂ emitted

2,390 t

2,427 t CO₂eq incl. CH₄ and N₂O

Distance sailed

14,958 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,504 h

63 days, 17% 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 49.9 kg/nm · median 150 (−67%)

69.3Ranks 26 of 408, lowest first232

Average speedThis ship 9.9 kn · median 15.8 (−37%)

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

CO₂ per transport work (pax)This ship 457 g CO₂/pax·nm · median 567 (−19%)

66.8Ranks 181 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 261 g CO₂/t·nm · median 253 (+3%)

48.6Ranks 206 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 ports82%
From the EU0%
Into the EU0%
At berth in the EU18%

100% of this ship's CO₂ falls under the EU ETS (2,390 t).

Fuel burned laden

–

Not reported

CO₂ at berth

427 t

17.9% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+37 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 I
Ro-pax median

0.050.0100.0150.0200.0

’212021’222022’232023’242024’252025

Average speed, kn

BASTØ I
Ro-pax median

8.010.012.014.016.018.0

’212021’222022’232023’242024’252025

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

BASTØ I
Ro-pax median

200220240260280

’212021’222022’232023’242024’252025

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

BASTØ I
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	−0.5 kn	+5%	+0%	−13%	+41%	0.5 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.0 kn	+7%	+7%	+46%	−13%	Same speed, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.1 kn	+6%	+5%	−42%	+15%	Same speed, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.5 kn	+4%	+8%	−22%	−14%	0.5 kn faster, fuel per mile up 4%; 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	746	2,390	14,958	1,504	9.9	49.9	–	–
2024	Torghatten Sør AS	821	2,631	17,221	1,656	10.4	47.7	–	–
2023	not published	524	1,679	11,774	1,130	10.4	44.5	–	–
2022	not published	860	2,758	20,466	1,954	10.5	42.0	–	–
2021	not published	1,063	3,408	26,236	2,614	10.0	40.5	–	–

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	457	567	−19%	181 of 408	261	253	+3%	DNV	A
2024	Torghatten Sør AS	324	547	−41%	149 of 404	248	233	+6%	DNV	A
2023	not published	374	680	−45%	123 of 386	233	234	−0%	DNV	A
2022	not published	327	626	−48%	130 of 394	223	253	−12%	DNV	A
2021	not published	382	815	−53%	129 of 377	207	226	−8%	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.