Navalyze · General cargo · Ship

ROTRA MARE

IMO: 9365996
Type: General cargo ship
Average cargo carried: 585 t
Flag (estimated): Netherlands
Port of registry: Delfzijl
Technical efficiency: EIV 27.00 g CO₂/t·nm
Ice class: IA

ISM company (DoC holder) in 2025: Rotra Mare B.V.

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 585 t of cargo on average.

Fuel kg/nm

68.8

General cargo median 35.2 kg/nm (+95%)

CO₂ per transport work (dwt)

60.0

g CO₂/dwt·nm · General cargo median 25.5 (+135%)

Average speed

9.0 kn

General cargo median 9.3 kn (−3%)

Fuel per day at sea

14.9 t/day

Fuel consumed

2,042 t

CO₂ emitted

6,545 t

6,646 t CO₂eq incl. CH₄ and N₂O

Distance sailed

29,652 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,293 h

137 days, 38% of the year

Within the general cargo fleet, 2025

Set against all 2,723 general cargo 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 68.8 kg/nm · median 35.2 (+95%)

17.4Ranks 2,246 of 2,723, lowest first78.8

Average speedThis ship 9.0 kn · median 9.3 (−3%)

6.9Faster than 42% of general cargo ships12.0

CO₂ per transport work (dwt)This ship 60.0 g CO₂/dwt·nm · median 25.5 (+135%)

10.2Ranks 2,513 of 2,723, lowest first52.7

Middle 80% of shipsMiddle 50%General cargo 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 ports63%
From the EU17%
Into the EU12%
At berth in the EU8%

86% of this ship's CO₂ falls under the EU ETS (5,601 t).

Fuel burned laden

–

Not reported

CO₂ at berth

556 t

8.5% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+101 t

+1.5% CO₂eq on top of CO₂ alone, from CH₄ and N₂O; counted in full from 2026

Over the years

Full-year reports only. The General cargo median is the middle ship of all general cargo ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

ROTRA MARE
General cargo median

30.040.050.060.070.080.0

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

Average speed, kn

ROTRA MARE
General cargo median

6.08.010.012.0

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

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

ROTRA MARE
General cargo median

20.030.040.050.060.070.0

’182018’192019’202020’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.3 kn	+10%	−3%	+6%	–	1.3 kn slower, fuel per mile up 10%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.5 kn	−10%	−15%	−33%	–	0.5 kn slower, fuel per mile down 10%; in line with the speed change.
2022→2023	+0.5 kn	−1%	+3%	−8%	–	0.5 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2021→2022	−0.5 kn	+26%	+21%	+19%	–	0.5 kn slower, fuel per mile up 26%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.3 kn	−10%	−7%	+8%	–	0.3 kn faster, fuel per mile down 10%; better than speed alone explains (hull, engine or trade).
2019→2020	+0.4 kn	+9%	+13%	−36%	−15%	0.4 kn faster, fuel per mile up 9%; in line with the speed change.
2018→2019	+4.0 kn	−1%	+64%	+12%	−7%	4.0 kn faster, fuel per mile flat; better than speed alone explains (hull, engine 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	Rotra Mare B.V.	2,042	6,545	29,652	3,293	9.0	68.8	377	–
2024	Rotra Mare B.V.	1,741	5,582	27,855	2,712	10.3	62.5	7.09	–
2023	not published	2,886	9,253	41,391	3,835	10.8	69.7	4.23	–
2022	not published	3,167	10,153	44,952	4,348	10.3	70.5	511	–
2021	not published	2,123	6,807	37,852	3,503	10.8	56.1	369	–
2020	not published	2,163	6,934	34,906	3,324	10.5	62.0	456	–
2019	not published	3,091	9,909	54,401	5,364	10.1	56.8	339	–
2018	not published	2,789	8,943	48,568	7,943	6.1	57.4	357	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/dwt·nm	General cargo median	vs General cargo	Rank	Verifier	Methods
2025	Rotra Mare B.V.	60.0	25.5	+135%	2,513 of 2,723	RINA	A+B
2024	Rotra Mare B.V.	–	–	–	–	RINA	A
2023	not published	–	–	–	–	Bureau Veritas	A
2022	not published	–	–	–	–	Bureau Veritas	A
2021	not published	–	–	–	–	Bureau Veritas	A
2020	not published	48.8	24.5	+99%	1,050 of 1,167	Bureau Veritas	A
2019	not published	57.5	25.0	+130%	1,050 of 1,154	Bureau Veritas	A
2018	not published	61.8	24.9	+148%	947 of 1,044	Bureau Veritas	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. General cargo ships are benchmarked on CO₂ per transport work (dwt) (TW), in g CO₂/dwt·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 general cargo 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.