Navalyze · General cargo · Ship

CHELSEA-1

IMO: 9495612
Type: General cargo ship
Average cargo carried: 3,388 t
Flag (estimated): Palau
Port of registry: Malakal Harbor
Technical efficiency: EEXI 13.17 g CO₂/t·nm

ISM company (DoC holder) in 2025: Black Sea Shipping Management

Report year

2023 at a glance

From the 2023 THETIS-MRV report.

Fuel kg/nm

29.9

General cargo median 59.9 kg/nm (−50%)

CO₂ per transport work (dwt)

21.3

g CO₂/dwt·nm · General cargo median 20.7 (+3%)

Average speed

4.9 kn

General cargo median 10.5 kn (−53%)

Fuel per day at sea

3.5 t/day

Fuel consumed

107 t

CO₂ emitted

342 t

Distance sailed

3,558 nm

CO₂ ÷ CO₂ per mile

Time at sea

727 h

30 days, 8% of the year

Within the general cargo fleet, 2025

Set against all 2,723 general cargo 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 20.5 kg/nm · median 35.2 (−42%)

17.4Ranks 444 of 2,723, lowest first78.8

Average speedThis ship 6.0 kn · median 9.3 (−35%)

6.9Faster than 5% of general cargo ships12.0

CO₂ per transport work (dwt)This ship 18.7 g CO₂/dwt·nm · median 25.5 (−27%)

10.2Ranks 697 of 2,723, lowest first52.7

Middle 80% of shipsMiddle 50%General cargo medianThis ship

Where the emissions happen, 2023

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 ports1%
From the EU39%
Into the EU54%
At berth in the EU6%

Fuel burned laden

–

Not reported

CO₂ at berth

22 t

6.3% 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 General cargo median is the middle ship of all general cargo ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

CHELSEA-1
General cargo median

20.030.040.050.060.0

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

Average speed, kn

CHELSEA-1
General cargo median

4.06.08.010.012.0

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

CO₂ per transport work (dwt), g CO₂/dwt·nm

CHELSEA-1
General cargo median

15.020.025.030.035.040.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+1.1 kn	−14%	+7%	+18%	−7%	1.1 kn faster, fuel per mile down 14%; better than speed alone explains (hull, engine or trade).
2023→2024	+0.0 kn	−20%	−20%	+149%	−5%	Same speed, fuel per mile down 20%; better than speed alone explains (hull, engine or trade).
2022→2023	−1.2 kn	+10%	−13%	−42%	−43%	1.2 kn slower, fuel per mile up 10%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.7 kn	+16%	+29%	+385%	+32%	0.7 kn faster, fuel per mile up 16%; better than speed alone explains (hull, engine or trade).
2019→2021	+0.6 kn	−24%	−14%	−76%	−14%	0.6 kn faster, fuel per mile down 24%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.8 kn	+2%	+24%	+143%	−5%	0.8 kn faster, fuel per mile flat; 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	Black Sea Shipping Management	215	689	10,499	1,748	6.0	20.5	19.4	–
2024	Black Sea Shipping Management	211	678	8,871	1,809	4.9	23.8	–	–
2023	not published	107	342	3,558	727	4.9	29.9	–	–
2022	not published	166	534	6,115	995	6.1	27.2	38.2	–
2021	not published	30	95	1,260	232	5.4	23.5	28.8	–
2019	not published	164	527	5,316	1,105	4.8	30.9	33.4	31%
2018	not published	66	212	2,184	551	4.0	30.3	–	49%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/dwt·nm	General cargo median	vs General cargo	Rank	Verifier	Methods
2025	Black Sea Shipping Management	18.7	25.5	−27%	697 of 2,723	Verifavia	A
2024	Black Sea Shipping Management	20.2	19.3	+5%	593 of 1,111	Verifavia	A
2023	not published	21.3	20.7	+3%	561 of 1,045	Verifavia	A
2022	not published	37.1	21.6	+72%	869 of 1,034	Verifavia	A
2021	not published	28.1	22.7	+24%	818 of 1,142	Verifavia	B
2019	not published	32.9	25.0	+32%	824 of 1,154	Verifavia	B
2018	not published	34.6	24.9	+39%	758 of 1,044	Verifavia	B

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. General cargo ships are benchmarked on CO₂ per transport work (dwt) (TW), in g CO₂/dwt·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 general cargo 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.