Navalyze · Container · Ship

MSC RHIANNON

IMO: 9224051
Type: Container ship
Average cargo carried: 14,656 t
Port of registry: Monrovia
Technical efficiency: EEXI 17.55 g CO₂/t·nm

ISM company (DoC holder) in 2025: MSC SHIPMANAGEMENT LIMITED · part of MSC Group

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 14,656 t of cargo on average.

Fuel per mile

114.2 kg/nm

Container median 177.0 kg/nm (−35%)

CO₂ per transport work (cargo)

24.52

g CO₂/t·nm · Container median 16.30 (+50%)

Average speed

9.2 kn

Container median 13.3 kn (−31%)

Fuel per day at sea

25.2 t/day

Fuel consumed

2,840 t

CO₂ emitted

8,940 t

9,079 t CO₂eq incl. CH₄ and N₂O

Distance sailed

24,876 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,709 h

113 days, 31% 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 114.2 kg/nm · median 177.0 (−35%)

78.8Ranks 651 of 2,208, lowest first302.4

Average speedThis ship 9.2 kn · median 13.3 (−31%)

9.1Faster than 11% of container ships16.0

CO₂ per transport work (cargo)This ship 24.52 g CO₂/t·nm · median 16.30 (+50%)

7.22Ranks 1,541 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 ports27%
From the EU32%
Into the EU34%
At berth in the EU7%

67% of this ship's CO₂ falls under the EU ETS (5,992 t).

Fuel burned laden

–

Not reported

CO₂ at berth

6.6%

Alongside in EU ports

Methane (CH₄)

0.1 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

MSC RHIANNON
Container median

100.0120.0140.0160.0180.0200.0

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

Average speed, kn

MSC RHIANNON
Container median

6.08.010.012.014.016.0

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

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

MSC RHIANNON
Container median

10.020.030.040.0

’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	+0.3 kn	−6%	−3%	−30%	+15%	Same speed, fuel per mile down 6%; better than speed alone explains (hull, engine or trade).
2023→2024	+1.4 kn	−22%	−8%	+24%	−35%	1.4 kn faster, fuel per mile down 22%; better than speed alone explains (hull, engine or trade).
2022→2023	−2.2 kn	+20%	−7%	−8%	+27%	2.2 kn slower, fuel per mile up 20%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−1.3 kn	+1%	−11%	−32%	−30%	1.3 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.1 kn	+18%	+17%	+8%	+32%	Same speed, fuel per mile up 18%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+1.0 kn	−17%	−9%	+16%	−6%	1.0 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.1 kn	+4%	−7%	−32%	−14%	1.1 kn slower, fuel per mile up 4%; 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	MSC SHIPMANAGEMENT LIMITED	2,840	8,940	24,876	2,709	9.2	114.2	24.52	–
2024	MSC Shipmanagement Ltd	4,292	13,452	35,395	3,963	8.9	121.3	21.27	–
2023	not published	4,445	13,899	28,573	3,789	7.5	155.6	32.62	–
2022	not published	4,034	12,597	31,110	3,197	9.7	129.7	25.64	–
2021	not published	5,916	18,466	45,969	4,173	11.0	128.7	36.48	–
2020	not published	4,638	14,454	42,513	3,834	11.1	109.1	27.57	–
2019	not published	4,844	15,138	36,669	3,639	10.1	132.1	29.34	–
2018	not published	6,838	21,365	53,795	4,787	11.2	127.1	34.29	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	MSC SHIPMANAGEMENT LIMITED	24.52	16.30	+50%	1,541 of 2,208	DNV	C
2024	MSC Shipmanagement Ltd	21.27	17.52	+21%	1,194 of 1,974	DNV	C
2023	not published	32.62	19.40	+68%	1,400 of 1,899	DNV	C
2022	not published	25.64	19.13	+34%	1,164 of 1,825	DNV	C
2021	not published	36.48	17.90	+104%	1,432 of 1,781	DNV	C
2020	not published	27.57	17.58	+57%	1,287 of 1,797	DNV	C
2019	not published	29.34	18.88	+55%	1,248 of 1,788	DNV	C
2018	not published	34.29	20.22	+70%	1,245 of 1,705	DNV	C

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.