Navalyze · Bulk carrier · Ship

SIDER ATHENA

IMO: 9657844
Type: Bulk carrier
Average cargo carried: 32,058 t
Port of registry: Panama
Technical efficiency: EEXI 4.75 g CO₂/t·nm
Former names: WUCHANG

ISM company (DoC holder) in 2025: Lydia Mar Shipping Co SA

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 32,058 t of cargo on average.

Fuel per mile

71.8 kg/nm

Bulk carrier median 82.6 kg/nm (−13%)

CO₂ per transport work (cargo)

7.06

g CO₂/t·nm · Bulk carrier median 7.89 (−11%)

Average speed

10.6 kn

Bulk carrier median 10.7 kn (−1%)

Fuel per day at sea

18.3 t/day

Fuel consumed

1,865 t

CO₂ emitted

5,881 t

5,972 t CO₂eq incl. CH₄ and N₂O

Distance sailed

25,983 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,440 h

102 days, 28% of the year

Within the bulk carrier fleet, 2025

Set against all 3,610 bulk carrier 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 71.8 kg/nm · median 82.6 (−13%)

61.0Ranks 996 of 3,610, lowest first114.1

Average speedThis ship 10.6 kn · median 10.7 (−1%)

8.8Faster than 49% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 7.06 g CO₂/t·nm · median 7.89 (−11%)

4.80Ranks 1,393 of 3,610, lowest first15.93

Middle 80% of shipsMiddle 50%Bulk carrier 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 ports31%
From the EU30%
Into the EU31%
At berth in the EU7%

65% of this ship's CO₂ falls under the EU ETS (3,798 t).

Fuel burned laden

–

Not reported

CO₂ at berth

7.0%

Alongside in EU ports

Methane (CH₄)

0.1 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 Bulk carrier median is the middle ship of all bulk carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

SIDER ATHENA
Bulk carrier median

40.060.080.0100.0

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

Average speed, kn

SIDER ATHENA
Bulk carrier median

10.011.012.013.0

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

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

SIDER ATHENA
Bulk carrier median

4.06.08.010.012.0

’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	−0.6 kn	+2%	−3%	−30%	−9%	0.6 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−1.5 kn	+45%	+28%	+742%	+46%	1.5 kn slower, fuel per mile up 45%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+1.8 kn	−34%	−24%	−76%	−55%	1.8 kn faster, fuel per mile down 34%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.7 kn	+4%	−2%	+266%	+65%	0.7 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.3 kn	+0%	+3%	−76%	+10%	Same speed, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2019→2020	+0.4 kn	+1%	+5%	+69%	−43%	0.4 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2018→2019	−0.4 kn	+57%	+50%	−43%	+146%	0.4 kn slower, fuel per mile up 57%; 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	Lydia Mar Shipping Co SA	1,865	5,881	25,983	2,440	10.6	71.8	7.06	–
2024	Lydia Mar Shipping Co SA	2,617	8,189	37,139	3,327	11.2	70.5	7.73	–
2023	not published	215	674	4,413	349	12.7	48.7	5.28	–
2022	not published	1,365	4,300	18,386	1,680	10.9	74.3	11.75	–
2021	not published	360	1,130	5,023	433	11.6	71.6	7.14	–
2020	not published	1,519	4,761	21,227	1,877	11.3	71.6	6.51	–
2019	not published	889	2,799	12,536	1,155	10.9	70.9	11.34	–
2018	not published	1,000	3,149	22,078	1,957	11.3	45.3	4.61	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	Lydia Mar Shipping Co SA	7.06	7.89	−11%	1,393 of 3,610	RINA	B
2024	Lydia Mar Shipping Co SA	7.73	8.09	−4%	1,402 of 3,089	RINA	B
2023	not published	5.28	8.27	−36%	490 of 3,548	RINA	B
2022	not published	11.75	8.71	+35%	2,952 of 3,968	Lloyd's Register	A
2021	not published	7.14	8.57	−17%	1,061 of 3,466	DNV	C
2020	not published	6.51	8.24	−21%	825 of 3,150	Verifavia	C
2019	not published	11.34	8.38	+35%	2,560 of 3,360	Verifavia	C
2018	not published	4.61	8.50	−46%	288 of 3,384	Verifavia	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Bulk carrier 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 bulk carrier 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.