Navalyze · Chemical tanker · Ship

EXCELLO

IMO: 9308558
Type: Chemical tanker
Average cargo carried: 8,293 t
Flag (estimated): Sweden
Port of registry: DonsÖ
Ice class: IA

ISM company (DoC holder) in 2025: Rederi AB Donsotank

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 8,959 t of cargo on average.

Fuel kg/nm

87.8

Chemical tanker median 90.2 kg/nm (−3%)

CO₂ per transport work (cargo)

30.6

g CO₂/t·nm · Chemical tanker median 17.1 (+79%)

Average speed

7.1 kn

Chemical tanker median 10.1 kn (−30%)

Fuel per day at sea

15.0 t/day

Fuel consumed

3,843 t

CO₂ emitted

11,997 t

Distance sailed

43,748 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,155 h

256 days, 70% of the year

Within the chemical tanker fleet, 2025

Set against all 1,460 chemical tanker 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 88.0 kg/nm · median 79.7 (+10%)

52.8Ranks 940 of 1,460, lowest first111

Average speedThis ship 8.4 kn · median 11.1 (−24%)

8.8Faster than 8% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 33.6 g CO₂/t·nm · median 15.0 (+123%)

7.93Ranks 1,221 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2018

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 ports83%
From the EU3%
Into the EU3%
At berth in the EU11%

Fuel burned laden

–

Not reported

CO₂ at berth

1,317 t

11.0% 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 Chemical tanker median is the middle ship of all chemical tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

EXCELLO
Chemical tanker median

70.080.090.0100.0110.0

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

Average speed, kn

EXCELLO
Chemical tanker median

6.08.010.012.0

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

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

EXCELLO
Chemical tanker median

10.020.030.040.050.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.5 kn	−13%	−18%	−2%	−18%	0.5 kn slower, fuel per mile down 13%; in line with the speed change.
2023→2024	−0.3 kn	+2%	−1%	+12%	+49%	Same speed, fuel per mile up 2%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.1 kn	+1%	+2%	−21%	+60%	Same speed, fuel per mile flat.
2021→2022	−0.5 kn	+12%	+6%	+4%	−38%	0.5 kn slower, fuel per mile up 12%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.4 kn	−11%	−7%	+24%	−28%	0.4 kn faster, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2019→2020	+2.4 kn	+15%	+56%	−31%	+18%	2.4 kn faster, fuel per mile up 15%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.3 kn	−3%	−7%	+1%	+7%	Same speed, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade).

Part-year reports are left out of these comparisons. 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	Rederi AB Donsotank	2,967	9,388	33,722	4,009	8.4	88.0	33.6	–
2024part-year	Donso Shipping AB	2,567	8,067	25,075	2,781	9.0	102	42.0	–
2024	Rederi AB Donsotank	3,485	10,953	34,391	3,868	8.9	101	41.0	–
2023LNG / alt.	not published	3,052	6,554	30,785	3,344	9.2	99.2	27.6	–
2022LNG / alt.	not published	3,836	6,657	39,108	4,301	9.1	98.1	17.2	–
2021	not published	3,295	10,431	37,619	3,917	9.6	87.6	27.8	–
2020	not published	2,983	9,401	30,422	3,300	9.2	98.1	38.6	–
2019	not published	3,753	11,824	44,064	6,498	6.8	85.2	32.8	–
2018	not published	3,843	11,997	43,748	6,155	7.1	87.8	30.6	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Rederi AB Donsotank	33.6	15.0	+123%	1,221 of 1,460	DNV	B+C
2024part-year	Donso Shipping AB	–	–	–	–	DNV	C
2024	Rederi AB Donsotank	41.0	16.7	+145%	1,136 of 1,274	DNV	C
2023LNG / alt.	not published	27.6	16.2	+70%	988 of 1,314	DNV	C
2022LNG / alt.	not published	17.2	16.1	+7%	765 of 1,409	DNV	C
2021	not published	27.8	16.7	+67%	1,025 of 1,343	DNV	C
2020	not published	38.6	16.2	+139%	1,158 of 1,312	DNV	C
2019	not published	32.8	17.3	+89%	1,081 of 1,321	DNV	C
2018	not published	30.6	17.1	+79%	1,024 of 1,294	DNV	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Chemical tanker 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 chemical tanker 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.