Navalyze · Container · Ship

JONNI RITSCHER

IMO: 9333383
Type: Container ship
Average cargo carried: 10,710 t
Port of registry: Monrovia
Technical efficiency: EIV 25.70 g CO₂/t·nm
Ice class: IA

ISM company (DoC holder) in 2025: Reederei Gerd Ritscher GmbH & Co. KG

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 10,710 t of cargo on average.

Fuel per mile

106.9 kg/nm

Container median 177.0 kg/nm (−40%)

CO₂ per transport work (cargo)

31.08

g CO₂/t·nm · Container median 16.30 (+91%)

Average speed

15.6 kn

Container median 13.3 kn (+17%)

Fuel per day at sea

40.0 t/day

Fuel consumed

6,242 t

CO₂ emitted

19,437 t

19,743 t CO₂eq incl. CH₄ and N₂O

Distance sailed

58,393 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,744 h

156 days, 43% of the year

Within the container fleet, 2025

Set against all 2,208 container 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 per mileThis ship 106.9 kg/nm · median 177.0 (−40%)

78.8Ranks 603 of 2,208, lowest first302.4

Average speedThis ship 15.6 kn · median 13.3 (+17%)

9.1Faster than 84% of container ships16.0

CO₂ per transport work (cargo)This ship 31.08 g CO₂/t·nm · median 16.30 (+91%)

7.22Ranks 1,711 of 2,208, lowest first46.89

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2025

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 ports52%
From the EU9%
Into the EU32%
At berth in the EU7%

80% of this ship's CO₂ falls under the EU ETS (15,494 t).

Fuel burned laden

–

Not reported

CO₂ at berth

7.4%

Alongside in EU ports

Methane (CH₄)

0.3 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift from CH₄ and N₂O, counted in full from 2026

Over the years

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

Fuel per mile, kg/nm

JONNI RITSCHER
Container median

50.0100.0150.0200.0

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

Average speed, kn

JONNI RITSCHER
Container median

10.012.014.016.0

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

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

JONNI RITSCHER
Container median

10.020.030.040.050.060.0

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−0.2 kn	−4%	−6%	−13%	−5%	Same speed, fuel per mile down 4%; in line with the speed change.
2023→2024	+0.2 kn	+1%	+2%	−11%	−9%	Same speed, fuel per mile flat.
2022→2023	−0.3 kn	−2%	−4%	+0%	+6%	0.3 kn slower, fuel per mile flat.
2021→2022	+1.2 kn	−5%	+3%	−3%	−12%	1.2 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2020→2021	+2.7 kn	+5%	+29%	+98%	−22%	2.7 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).
2019→2020	+1.3 kn	+35%	+51%	−27%	+79%	1.3 kn faster, fuel per mile up 35%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−1.0 kn	−7%	−14%	−25%	−6%	1.0 kn slower, fuel per mile down 7%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Reederei Gerd Ritscher GmbH & Co. KG	6,242	19,437	58,393	3,744	15.6	106.9	31.08	–
2024	Reederei Gerd Ritscher GmbH & Co. KG	7,464	23,247	66,945	4,227	15.8	111.5	32.81	–
2023	not published	8,316	26,205	75,434	4,825	15.6	110.2	36.20	–
2022	not published	8,446	26,614	75,129	4,719	15.9	112.4	34.26	–
2021	not published	9,175	28,914	77,149	5,256	14.7	118.9	39.05	–
2020	not published	4,399	13,808	38,946	3,235	12.0	113.0	50.36	–
2019	not published	4,482	14,061	53,395	4,976	10.7	83.9	28.08	–
2018	not published	6,410	20,167	71,240	6,109	11.7	90.0	29.84	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	Reederei Gerd Ritscher GmbH & Co. KG	31.08	16.30	+91%	1,711 of 2,208	EnvService	B
2024	Reederei Gerd Ritscher GmbH & Co. KG	32.81	17.52	+87%	1,512 of 1,974	EnvService	B
2023	not published	36.20	19.40	+87%	1,468 of 1,899	EnvService	B
2022	not published	34.26	19.13	+79%	1,385 of 1,825	EnvService	B
2021	not published	39.05	17.90	+118%	1,471 of 1,781	EnvService	B
2020	not published	50.36	17.58	+186%	1,603 of 1,797	EnvService	B
2019	not published	28.08	18.88	+49%	1,209 of 1,788	EnvService	B
2018	not published	29.84	20.22	+48%	1,168 of 1,705	EnvService	–

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Container 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 container 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.