Navalyze · Other · Ship

ROLLDOCK SUN

IMO: 9393981
Type: Other ship types
Average cargo carried: 528 t
Flag (estimated): Netherlands
Port of registry: Rotterdam
Ice class: IB

ISM company (DoC holder) in 2025: RollDock Shipping BV

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 528 t of cargo on average.

Fuel kg/nm

90.3

Other median 87.2 kg/nm (+4%)

CO₂ per transport work (cargo)

541

g CO₂/t·nm · Other median 86.7 (+524%)

Average speed

12.3 kn

Other median 10.4 kn (+18%)

Fuel per day at sea

26.7 t/day

Fuel consumed

4,457 t

CO₂ emitted

14,092 t

14,311 t CO₂eq incl. CH₄ and N₂O

Distance sailed

49,353 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,013 h

167 days, 46% 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 90.3 kg/nm · median 87.2 (+4%)

47.6Ranks 82 of 159, lowest first161

Average speedThis ship 12.3 kn · median 10.4 (+18%)

5.8Faster than 79% of other ships13.4

CO₂ per transport work (cargo)This ship 541 g CO₂/t·nm · median 86.7 (+524%)

30.8Ranks 142 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 ports15%
From the EU37%
Into the EU44%
At berth in the EU4%

59% of this ship's CO₂ falls under the EU ETS (8,339 t).

Fuel burned laden

–

Not reported

CO₂ at berth

521 t

3.7% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.2 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+219 t

+1.6% 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

ROLLDOCK SUN
Other median

50.060.070.080.090.0100.0

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

Average speed, kn

ROLLDOCK SUN
Other median

9.010.011.012.013.0

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

CO₂ per transport work (dwt), g CO₂/dwt·nm

ROLLDOCK SUN
Other median

0.0200400600

’182018’222022’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+1.0 kn	+5%	+14%	+66%	–	1.0 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).
2023→2024	−1.5 kn	−3%	−14%	+174%	–	1.5 kn slower, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.5 kn	+10%	+14%	−58%	–	0.5 kn faster, fuel per mile up 10%; in line with the speed change.
2021→2022	+1.1 kn	+10%	+20%	−30%	–	1.1 kn faster, fuel per mile up 10%; better than speed alone explains (hull, engine or trade).
2020→2021	−1.0 kn	−16%	−23%	−4%	–	1.0 kn slower, fuel per mile down 16%; in line with the speed change.
2019→2020	+1.9 kn	−9%	+9%	−9%	–	1.9 kn faster, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.2 kn	+41%	+44%	+10%	–	Same speed, fuel per mile up 41%; 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
2025	RollDock Shipping BV	4,457	14,092	49,353	4,013	12.3	90.3	541	–
2024	RollDock Shipping BV	2,565	8,223	29,752	2,630	11.3	86.2	–	–
2023	not published	962	3,086	10,842	845	12.8	88.8	–	–
2022	not published	2,099	6,728	25,947	2,107	12.3	80.9	–	–
2021	not published	2,726	8,741	36,999	3,294	11.2	73.7	–	–
2020	not published	3,371	10,807	38,394	3,141	12.2	87.8	238	–
2019	not published	4,027	12,597	41,964	4,091	10.3	96.0	205	–
2018	not published	2,595	8,141	38,182	3,799	10.1	68.0	33.9	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Other median	vs Other	Rank	Verifier	Methods
2025	RollDock Shipping BV	541	86.7	+524%	142 of 159	DNV	B
2024	RollDock Shipping BV	–	–	–	–	DNV	A+B
2023	not published	–	–	–	–	DNV	A+B
2022	not published	201	21.6	+831%	1,026 of 1,034	DNV	B
2021	not published	–	–	–	–	DNV	B
2020	not published	–	–	–	–	DNV	B
2019	not published	–	–	–	–	DNV	B
2018	not published	33.9	24.9	+36%	748 of 1,044	Verifavia	B

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.