Navalyze · Ro-ro · Ship

DELPHINE

IMO: 9789245
Type: Ro-ro ship
Average cargo carried: 9,171 t
Port of registry: Valletta
Technical efficiency: EEXI 9.47 g CO₂/t·nm

ISM company (DoC holder) in 2025: CLDN RORO S.A. · part of CLdN

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 9,171 t of cargo on average.

Fuel per mile

156.1 kg/nm

Ro-ro median 104.6 kg/nm (+49%)

CO₂ per transport work (cargo)

53.60

g CO₂/t·nm · Ro-ro median 95.19 (−44%)

Average speed

15.5 kn

Ro-ro median 14.4 kn (+8%)

Fuel per day at sea

58.1 t/day

Fuel consumed

11,753 t

CO₂ emitted

37,004 t

37,581 t CO₂eq incl. CH₄ and N₂O

Distance sailed

75,279 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,854 h

202 days, 55% of the year

Within the ro-ro fleet, 2025

Set against all 235 ro-ro 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 156.1 kg/nm · median 104.6 (+49%)

56.6Ranks 228 of 235, lowest first145.3

Average speedThis ship 15.5 kn · median 14.4 (+8%)

10.9Faster than 68% of ro-ro ships17.0

CO₂ per transport work (cargo)This ship 53.60 g CO₂/t·nm · median 95.19 (−44%)

47.35Ranks 38 of 235, lowest first297.27

Middle 80% of shipsMiddle 50%Ro-ro 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 ports65%
From the EU13%
Into the EU14%
At berth in the EU8%

86% of this ship's CO₂ falls under the EU ETS (31,994 t).

Fuel burned laden

–

Not reported

CO₂ at berth

7.8%

Alongside in EU ports

Methane (CH₄)

0.6 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-ro median is the middle ship of all ro-ro ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

DELPHINE
Ro-ro median

100.0120.0140.0160.0180.0

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

Average speed, kn

DELPHINE
Ro-ro median

14.014.515.015.516.0

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

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

DELPHINE
Ro-ro median

40.060.080.0100120

’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	+0.4 kn	+3%	+6%	−8%	+12%	0.4 kn faster, fuel per mile up 3%; in line with the speed change.
2023→2024	−0.1 kn	−2%	−3%	+21%	−2%	Same speed, fuel per mile down 2%; in line with the speed change.
2022→2023	+0.0 kn	−7%	−7%	−17%	−9%	Same speed, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.5 kn	−1%	−4%	+4%	+3%	0.5 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.6 kn	−0%	+4%	+2%	−12%	0.6 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2019→2020	−0.9 kn	−6%	−11%	−2%	−3%	0.9 kn slower, fuel per mile down 6%; in line with the speed change.

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	CLDN RORO S.A.	11,753	37,004	75,279	4,854	15.5	156.1	53.60	–
2024	CLDN RORO S.A.	12,335	38,805	81,671	5,423	15.1	151.0	47.82	–
2023	not published	10,406	32,741	67,467	4,433	15.2	154.2	48.68	–
2022	not published	13,466	42,370	81,198	5,328	15.2	165.8	53.63	–
2021	not published	13,000	40,912	77,764	4,940	15.7	167.2	52.19	–
2020	not published	12,828	40,384	76,387	5,049	15.1	167.9	59.62	–
2019	not published	13,983	44,039	78,002	4,885	16.0	179.3	61.52	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2025	CLDN RORO S.A.	53.60	95.19	−44%	38 of 235	DNV	A+C
2024	CLDN RORO S.A.	47.82	97.53	−51%	19 of 220	DNV	A+C
2023	not published	48.68	108.62	−55%	18 of 221	DNV	A+C
2022	not published	53.63	90.62	−41%	26 of 223	DNV	C
2021	not published	52.19	103.64	−50%	21 of 219	DNV	C
2020	not published	59.62	102.77	−42%	38 of 238	DNV	C
2019	not published	61.52	90.89	−32%	51 of 271	DNV	C

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