Navalyze · Ro-ro · Ship

DELPHINE

IMO: 9789245
Type: Ro-ro ship
Average cargo carried: 9,171 t
Flag (estimated): Malta
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

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 8,867 t of cargo on average.

Fuel kg/nm

168

Ro-ro median 109 kg/nm (+53%)

CO₂ per transport work (cargo)

59.6

g CO₂/t·nm · Ro-ro median 103 (−42%)

Average speed

15.1 kn

Ro-ro median 14.4 kn (+5%)

Fuel per day at sea

61.0 t/day

Fuel consumed

12,828 t

CO₂ emitted

40,384 t

Distance sailed

76,387 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,049 h

210 days, 58% 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 kg/nmThis ship 156 kg/nm · median 105 (+49%)

56.6Ranks 228 of 235, lowest first145

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 53.6 g CO₂/t·nm · median 95.2 (−44%)

47.4Ranks 38 of 235, lowest first297

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

Where the emissions happen, 2020

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 ports92%
From the EU0%
Into the EU0%
At berth in the EU8%

Fuel burned laden

–

Not reported

CO₂ at berth

3,303 t

8.2% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

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 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	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	CLDN RORO S.A.	11,753	37,004	75,279	4,854	15.5	156	53.6	–
2024	CLDN RORO S.A.	12,335	38,805	81,671	5,423	15.1	151	47.8	–
2023	not published	10,406	32,741	67,467	4,433	15.2	154	48.7	–
2022	not published	13,466	42,370	81,198	5,328	15.2	166	53.6	–
2021	not published	13,000	40,912	77,764	4,940	15.7	167	52.2	–
2020	not published	12,828	40,384	76,387	5,049	15.1	168	59.6	–
2019	not published	13,983	44,039	78,002	4,885	16.0	179	61.5	–

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.	53.6	95.2	−44%	38 of 235	DNV	A+C
2024	CLDN RORO S.A.	47.8	97.5	−51%	19 of 220	DNV	A+C
2023	not published	48.7	109	−55%	18 of 221	DNV	A+C
2022	not published	53.6	90.6	−41%	26 of 223	DNV	C
2021	not published	52.2	104	−50%	21 of 219	DNV	C
2020	not published	59.6	103	−42%	38 of 238	DNV	C
2019	not published	61.5	90.9	−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.