Navalyze · Container · Ship

RIO GRANDE EXPRESS

IMO: 9301823
Type: Container ship
Average cargo carried: 33,771 t
Flag (estimated): Singapore
Port of registry: Singapore
Technical efficiency: EEXI 13.79 g CO₂/t·nm

ISM company (DoC holder) in 2025: Seaspan Ship Management Ltd.

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 25,598 t of cargo on average.

Fuel kg/nm

205

Container median 172 kg/nm (+19%)

CO₂ per transport work (cargo)

25.0

g CO₂/t·nm · Container median 17.6 (+42%)

Average speed

15.7 kn

Container median 14.0 kn (+12%)

Fuel per day at sea

77.2 t/day

Fuel consumed

9,646 t

CO₂ emitted

30,066 t

Distance sailed

47,077 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,999 h

125 days, 34% 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 kg/nmThis ship 182 kg/nm · median 177 (+3%)

78.8Ranks 1,150 of 2,208, lowest first302

Average speedThis ship 15.9 kn · median 13.3 (+20%)

9.1Faster than 88% of container ships16.0

CO₂ per transport work (cargo)This ship 16.8 g CO₂/t·nm · median 16.3 (+3%)

7.22Ranks 1,142 of 2,208, lowest first46.9

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2020

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 ports13%
From the EU24%
Into the EU62%
At berth in the EU1%

Fuel burned laden

–

Not reported

CO₂ at berth

397 t

1.3% 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 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 kg/nm

RIO GRANDE EXPRESS
Container median

120.0140.0160.0180.0200.0220.0

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

Average speed, kn

RIO GRANDE EXPRESS
Container median

8.010.012.014.016.0

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

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

RIO GRANDE EXPRESS
Container median

0.020.040.060.080.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.7 kn	+22%	+27%	−72%	+10%	0.7 kn faster, fuel per mile up 22%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+6.4 kn	−4%	+66%	+2,442%	−76%	6.4 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2022→2023	−6.2 kn	+17%	−32%	−96%	+169%	6.2 kn slower, fuel per mile up 17%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.0 kn	−19%	−19%	+38%	+50%	Same speed, fuel per mile down 19%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.7 kn	−20%	−23%	−17%	−36%	0.7 kn slower, fuel per mile down 20%; better than speed alone explains (hull, engine or trade).
2018→2020	+2.1 kn	+16%	+34%	+46%	+67%	2.1 kn faster, fuel per mile up 16%; 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	Seaspan Ship Management Ltd.	2,801	8,753	15,400	972	15.9	182	16.8	–
2024	Seaspan Ship Management Ltd.	8,276	25,827	55,375	3,649	15.2	150	15.3	–
2023	not published	339	1,073	2,178	248	8.8	155	64.4	–
2022	not published	7,116	22,463	53,541	3,572	15.0	133	23.9	–
2021	not published	6,372	20,088	38,922	2,588	15.0	164	15.9	–
2020	not published	9,646	30,066	47,077	2,999	15.7	205	25.0	–
2018	not published	5,669	17,664	32,176	2,367	13.6	176	14.9	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	Seaspan Ship Management Ltd.	16.8	16.3	+3%	1,142 of 2,208	DNV	B+C
2024	Seaspan Ship Management Ltd.	15.3	17.5	−13%	843 of 1,974	DNV	B+C
2023	not published	64.4	19.4	+232%	1,814 of 1,899	DNV	B+C
2022	not published	23.9	19.1	+25%	1,113 of 1,825	DNV	B+C
2021	not published	15.9	17.9	−11%	773 of 1,781	DNV	B+C
2020	not published	25.0	17.6	+42%	1,224 of 1,797	ABS	–
2018	not published	14.9	20.2	−26%	540 of 1,705	DNV	B+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.