Navalyze · Ro-pax · Ship

NERTHUS

IMO: 9994357
Type: Ro-pax ship
Port of registry: Fynshav

ISM company (DoC holder) in 2025: Molslinjen A/S

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

39.0 kg/nm

Ro-pax median 150.2 kg/nm (−74%)

CO₂ per transport work (pax)

413

g CO₂/pax·nm · Ro-pax median 567 (−27%)

CO₂ per transport work (freight)

637

g CO₂/t·nm · Ro-pax median 253 (+152%)

Average speed

12.4 kn

Ro-pax median 15.8 kn (−22%)

Fuel per day at sea

11.6 t/day

Fuel consumed

837 t

CO₂ emitted

2,608 t

2,649 t CO₂eq incl. CH₄ and N₂O

Distance sailed

21,449 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,735 h

72 days, 20% 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 39.0 kg/nm · median 150.2 (−74%)

69.3Ranks 12 of 408, lowest first232.4

Average speedThis ship 12.4 kn · median 15.8 (−22%)

12.0Faster than 11% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 413.08 g CO₂/pax·nm · median 566.51 (−27%)

66.76Ranks 168 of 408, lowest first1,568.87

CO₂ per transport work (freight)This ship 637.05 g CO₂/t·nm · median 253.18 (+152%)

48.59Ranks 295 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 ports76%
From the EU0%
Into the EU0%
At berth in the EU24%

0% of this ship's CO₂ falls under the EU ETS (0 t).

Fuel burned laden

–

Not reported

CO₂ at berth

23.6%

Alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift from CH₄ and N₂O, counted in full from 2026

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	Molslinjen A/S	837	2,608	21,449	1,735	12.4	39.0	–	–

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	Molslinjen A/S	413.08	566.51	−27%	168 of 408	637.05	253.18	+152%	Verifavia	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.