Navalyze · Chemical tanker · Ship

EXCELLO

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

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

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 8,293 t of cargo on average.

Fuel per mile

88.0 kg/nm

Chemical tanker median 79.7 kg/nm (+10%)

CO₂ per transport work (cargo)

33.57

g CO₂/t·nm · Chemical tanker median 15.04 (+123%)

Average speed

8.4 kn

Chemical tanker median 11.1 kn (−24%)

Fuel per day at sea

17.8 t/day

Fuel consumed

2,967 t

CO₂ emitted

9,388 t

9,533 t CO₂eq incl. CH₄ and N₂O

Distance sailed

33,722 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,009 h

167 days, 46% 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 per mileThis ship 88.0 kg/nm · median 79.7 (+10%)

52.8Ranks 940 of 1,460, lowest first111.0

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 33.57 g CO₂/t·nm · median 15.04 (+123%)

7.93Ranks 1,221 of 1,460, lowest first40.17

Middle 80% of shipsMiddle 50%Chemical tanker 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 ports80%
From the EU3%
Into the EU4%
At berth in the EU13%

83% of this ship's CO₂ falls under the EU ETS (7,823 t).

Fuel burned laden

–

Not reported

CO₂ at berth

12.7%

Alongside in EU ports

Methane (CH₄)

0.2 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.015

Uplift from CH₄ and N₂O, counted in full from 2026

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 per mile, 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	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Rederi AB Donsotank	2,967	9,388	33,722	4,009	8.4	88.0	33.57	–
2024part-year	Donso Shipping AB	2,567	8,067	25,075	2,781	9.0	102.4	41.97	–
2024	Rederi AB Donsotank	3,485	10,953	34,391	3,868	8.9	101.3	41.04	–
2023LNG	not published	3,052	6,554	30,785	3,344	9.2	99.2	27.62	–
2022LNG	not published	3,836	6,657	39,108	4,301	9.1	98.1	17.22	–
2021	not published	3,295	10,431	37,619	3,917	9.6	87.6	27.83	–
2020	not published	2,983	9,401	30,422	3,300	9.2	98.1	38.58	–
2019	not published	3,753	11,824	44,064	6,498	6.8	85.2	32.75	–
2018	not published	3,843	11,997	43,748	6,155	7.1	87.8	30.61	–

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	33.57	15.04	+123%	1,221 of 1,460	DNV	B+C
2024part-year	Donso Shipping AB	–	–	–	–	DNV	C
2024	Rederi AB Donsotank	41.04	16.73	+145%	1,136 of 1,274	DNV	C
2023LNG	not published	27.62	16.23	+70%	988 of 1,314	DNV	C
2022LNG	not published	17.22	16.06	+7%	765 of 1,409	DNV	C
2021	not published	27.83	16.69	+67%	1,025 of 1,343	DNV	C
2020	not published	38.58	16.16	+139%	1,158 of 1,312	DNV	C
2019	not published	32.75	17.32	+89%	1,081 of 1,321	DNV	C
2018	not published	30.61	17.14	+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.