Navalyze · Ro-ro · Ship

SOMERSET

IMO: 9188221
Type: Ro-ro ship
Average cargo carried: 3,129 t
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEXI 13.87 g CO₂/t·nm

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

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 2,226 t of cargo on average.

Fuel kg/nm

95.3

Ro-ro median 109 kg/nm (−13%)

CO₂ per transport work (cargo)

135

g CO₂/t·nm · Ro-ro median 104 (+30%)

Average speed

14.4 kn

Ro-ro median 14.8 kn (−3%)

Fuel per day at sea

32.8 t/day

Fuel consumed

5,556 t

CO₂ emitted

17,531 t

Distance sailed

58,313 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,060 h

169 days, 46% 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 77.9 kg/nm · median 105 (−26%)

56.6Ranks 48 of 235, lowest first145

Average speedThis ship 13.7 kn · median 14.4 (−5%)

10.9Faster than 37% of ro-ro ships17.0

CO₂ per transport work (cargo)This ship 78.9 g CO₂/t·nm · median 95.2 (−17%)

47.4Ranks 83 of 235, lowest first297

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

Where the emissions happen, 2021

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 ports0%
From the EU47%
Into the EU44%
At berth in the EU8%

Fuel burned laden

–

Not reported

CO₂ at berth

1,474 t

8.4% 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

SOMERSET
Ro-ro median

70.080.090.0100.0110.0120.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

SOMERSET
Ro-ro median

10.020.030.040.050.0

’182018’192019’202020’212021’222022’232023’242024’252025

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

SOMERSET
Ro-ro median

75.0100125150175

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.9 kn	−11%	−16%	−21%	−18%	0.9 kn slower, fuel per mile down 11%; in line with the speed change.
2023→2024	+1.2 kn	−7%	+1%	+43%	−44%	1.2 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2022→2023	−0.8 kn	+1%	−5%	−1%	+30%	0.8 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.2 kn	−2%	−4%	−1%	−2%	Same speed, fuel per mile down 2%; in line with the speed change.
2020→2021	+2.0 kn	−17%	−4%	+16%	−17%	2.0 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2019→2020	−1.4 kn	+9%	−2%	−12%	+35%	1.4 kn slower, fuel per mile up 9%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−29.2 kn	+11%	−64%	+18%	+9%	29.2 kn slower, fuel per mile up 11%; worse than speed alone explains (fouling, weather, loading or trade).

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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025part-year	CLDN RORO S.A.	4,753	15,061	60,898	4,446	13.7	78.0	77.5	–
2025	CLdN RoRo Ltd	5,014	15,884	64,361	4,712	13.7	77.9	78.9	–
2024	CLDN RORO S.A.	7,144	22,585	81,805	5,615	14.6	87.3	95.9	–
2023	not published	5,355	17,037	57,166	4,274	13.4	93.7	173	–
2022	not published	5,379	16,975	57,867	4,088	14.2	93.0	133	–
2021	not published	5,556	17,531	58,313	4,060	14.4	95.3	135	–
2020	not published	5,729	18,146	50,139	4,043	12.4	114	163	86%
2019	not published	5,966	18,846	57,064	4,138	13.8	105	121	94%
2018	not published	4,545	14,338	48,278	1,123	43.0	94.1	111	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Ro-ro median	vs Ro-ro	Rank	Verifier	Methods
2025part-year	CLDN RORO S.A.	–	–	–	–	DNV	A+C
2025	CLdN RoRo Ltd	78.9	95.2	−17%	83 of 235	DNV	A+C
2024	CLDN RORO S.A.	95.9	97.5	−2%	107 of 220	DNV	A+C
2023	not published	173	109	+59%	159 of 221	DNV	A+C
2022	not published	133	90.6	+47%	153 of 223	DNV	A
2021	not published	135	104	+30%	146 of 219	DNV	A
2020	not published	163	103	+59%	167 of 238	Lloyd's Register	C
2019	not published	121	90.9	+33%	172 of 271	Lloyd's Register	–
2018	not published	111	91.0	+22%	157 of 260	Lloyd's Register	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.