Navalyze · Ro-ro · Ship

CELESTINE

IMO: 9125372
Type: Ro-ro ship
Average cargo carried: 723 t
Port of registry: Valletta
Technical efficiency: EEXI 14.46 g CO₂/t·nm
Ice class: IC

ISM company (DoC holder) in 2024: CLDN RORO S.A. · part of CLdN

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 723 t of cargo on average.

Fuel per mile

86.9 kg/nm

Ro-ro median 107.4 kg/nm (−19%)

CO₂ per transport work (cargo)

379

g CO₂/t·nm · Ro-ro median 109 (+249%)

Average speed

12.4 kn

Ro-ro median 14.6 kn (−15%)

Fuel per day at sea

25.9 t/day

Fuel consumed

4,366 t

CO₂ emitted

13,758 t

Distance sailed

50,219 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,045 h

169 days, 46% of the year

Within the ro-ro fleet, 2023

Set against all 221 ro-ro ships with a full-year 2023 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 86.9 kg/nm · median 107.4 (−19%)

65.3Ranks 52 of 221, lowest first146.7

Average speedThis ship 12.4 kn · median 14.6 (−15%)

10.8Faster than 25% of ro-ro ships17.2

CO₂ per transport work (cargo)This ship 379.02 g CO₂/t·nm · median 108.62 (+249%)

50.96Ranks 203 of 221, lowest first359.46

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

Where the emissions happen, 2023

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 ports3%
From the EU45%
Into the EU42%
At berth in the EU10%

Fuel burned laden

–

Not reported

CO₂ at berth

10.1%

Alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

–

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

CELESTINE
Ro-ro median

80.090.0100.0110.0120.0

’182018’192019’202020’212021’222022’232023

Average speed, kn

CELESTINE
Ro-ro median

8.010.012.014.016.0

’182018’192019’202020’212021’222022’232023

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

CELESTINE
Ro-ro median

0.0100200300400500

’182018’192019’202020’212021’222022’232023

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2022→2023	−0.6 kn	−11%	−14%	+20%	−6%	0.6 kn slower, fuel per mile down 11%; in line with the speed change.
2021→2022	+3.1 kn	−9%	+19%	+16%	+7%	3.1 kn faster, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2020→2021	−2.6 kn	−10%	−29%	−4%	−15%	2.6 kn slower, fuel per mile down 10%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.7 kn	+21%	+14%	−30%	+39%	0.7 kn slower, fuel per mile up 21%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.4 kn	−3%	−6%	+43%	+16%	0.4 kn slower, fuel per mile down 3%; in line with the speed change.

Part-year reports are left out of these comparisons. 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
2024part-year	CLDN RORO S.A.	2,440	7,690	29,084	2,832	10.3	83.9	373.21	–
2023	not published	4,366	13,758	50,219	4,045	12.4	86.9	379.02	–
2022	not published	4,070	12,829	41,923	3,234	13.0	97.1	401.93	–
2021	not published	3,885	12,251	36,251	3,669	9.9	107.2	376.03	–
2020	not published	4,502	14,187	37,744	3,020	12.5	119.3	439.84	–
2019	not published	5,334	16,809	54,032	4,091	13.2	98.7	317.52	–
2018	not published	3,842	12,105	37,719	2,776	13.6	101.8	272.81	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2024part-year	CLDN RORO S.A.	–	–	–	–	DNV	A+C
2023	not published	379.02	108.62	+249%	203 of 221	DNV	A+C
2022	not published	401.93	90.62	+344%	212 of 223	DNV	C
2021	not published	376.03	103.64	+263%	209 of 219	DNV	C
2020	not published	439.84	102.77	+328%	222 of 238	DNV	C
2019	not published	317.52	90.89	+249%	248 of 271	DNV	C
2018	not published	272.81	91.03	+200%	236 of 260	DNV	–

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.