Navalyze · Other · Ship

RONJA BORØY

IMO: 9923190
Type: Other ship types
Average cargo carried: 66 t
Flag (estimated): Norway
Port of registry: Aalesund
Fuel (estimated): Mostly LNG

ISM company (DoC holder) in 2025: Solvtrans Management AS

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 66 t of cargo on average.

Fuel kg/nm

202

Other median 87.2 kg/nm (+132%)

CO₂ per transport work (cargo)

8,530

g CO₂/t·nm · Other median 86.7 (+9,740%)

Average speed

1.9 kn

Other median 10.4 kn (−82%)

Fuel per day at sea

9.3 t/day

Fuel consumed

2,385 t

CO₂ emitted

6,614 t

8,347 t CO₂eq incl. CH₄ and N₂O

Distance sailed

11,814 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,124 h

255 days, 70% of the year

Within the other fleet, 2025

Set against all 159 other 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 202 kg/nm · median 87.2 (+132%)

47.6Ranks 152 of 159, lowest first161

Average speedThis ship 1.9 kn · median 10.4 (−82%)

5.8Faster than 1% of other ships13.4

CO₂ per transport work (cargo)This ship 8,530 g CO₂/t·nm · median 86.7 (+9,740%)

30.8Ranks 156 of 159, lowest first600

Middle 80% of shipsMiddle 50%Other 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 ports100%
From the EU0%
Into the EU0%
At berth in the EU0%

100% of this ship's CO₂ falls under the EU ETS (6,614 t).

Fuel burned laden

–

Not reported

CO₂ at berth

13 t

0.2% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

59.2 t

LNG engines slip unburnt methane

CO₂eq uplift

+1,733 t

+26.2% CO₂eq on top of CO₂ alone, from CH₄ and N₂O; counted in full from 2026

Over the years

Full-year reports only. The Other median is the middle ship of all other ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

RONJA BORØY
Other median

50.0100.0150.0200.0250.0

’242024’252025

Average speed, kn

RONJA BORØY
Other median

0.02.55.07.510.012.5

’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	−13%	−32%	+31%	–	0.5 kn slower, fuel per mile down 13%; worse than speed alone explains (fouling, weather, loading 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
2025LNG	Solvtrans Management AS	2,385	6,614	11,814	6,124	1.9	202	8,530	–
2024LNG	Solvtrans Management AS	2,096	5,862	8,998	3,676	2.4	233	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Other median	vs Other	Rank	Verifier	Methods
2025LNG	Solvtrans Management AS	8,530	86.7	+9,740%	156 of 159	DNV	A+C
2024LNG	Solvtrans Management AS	–	–	–	–	DNV	B+C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Other 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 other 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.