Navalyze · General cargo · Ship

EMERALD BAY

IMO: 9385075
Type: General cargo ship
Flag (estimated): Isle of Man
Port of registry: Douglas
Technical efficiency: EEXI 6.66 g CO₂/t·nm

ISM company (DoC holder) in 2025: PIONEER MARINE HELLAS S.A.

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 17,513 t of cargo on average.

Fuel kg/nm

68.1

CO₂ per transport work (dwt)

–

g CO₂/dwt·nm

Average speed

11.7 kn

Fuel per day at sea

19.1 t/day

Fuel consumed

2,308 t

CO₂ emitted

7,265 t

Distance sailed

33,890 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,895 h

121 days, 33% 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 68.7 kg/nm · median 35.2 (+95%)

17.4Ranks 2,246 of 2,723, lowest first78.8

Average speedThis ship 10.6 kn · median 9.3 (+14%)

6.9Faster than 74% of general cargo ships12.0

CO₂ per transport work (dwt)This ship 10.6 g CO₂/dwt·nm · median 25.5 (−58%)

10.2Ranks 297 of 2,723, lowest first52.7

Middle 80% of shipsMiddle 50%General cargo medianThis ship

Where the emissions happen, 2021

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 EU41%
Into the EU51%
At berth in the EU6%

Fuel burned laden

–

Not reported

CO₂ at berth

463 t

6.4% 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

EMERALD BAY
General cargo median

20.040.060.080.0100.0

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

Average speed, kn

EMERALD BAY
General cargo median

8.09.010.011.012.013.0

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

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

EMERALD BAY
General cargo median

5.010.015.020.025.030.0

’182018’192019’202020’222022’232023’252025

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	+25%	+17%	−11%	–	0.7 kn slower, fuel per mile up 25%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.9 kn	−30%	−35%	+56%	–	0.9 kn slower, fuel per mile down 30%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.0 kn	+19%	+19%	−60%	−4%	Same speed, fuel per mile up 19%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.5 kn	−4%	+1%	−44%	–	0.5 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.7 kn	−29%	−25%	+130%	–	0.7 kn faster, fuel per mile down 29%; better than speed alone explains (hull, engine or trade).
2019→2020	−1.3 kn	+53%	+37%	−59%	+61%	1.3 kn slower, fuel per mile up 53%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+3.6 kn	−12%	+25%	+135%	−19%	3.6 kn faster, fuel per mile down 12%; 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	PIONEER MARINE HELLAS S.A.	729	2,300	10,615	1,002	10.6	68.7	–	–
2024	PIONEER MARINE HELLAS S.A.	654	2,066	11,895	1,056	11.3	55.0	6.43	–
2023	not published	595	1,879	7,616	625	12.2	78.2	–	–
2022	not published	1,234	3,904	18,817	1,542	12.2	65.6	–	–
2021	not published	2,308	7,265	33,890	2,895	11.7	68.1	12.2	–
2020	not published	1,416	4,463	14,733	1,345	11.0	96.1	–	–
2019	not published	2,270	7,107	36,125	2,947	12.3	62.8	–	–
2018	not published	1,097	3,445	15,385	1,776	8.7	71.3	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/dwt·nm	General cargo median	vs General cargo	Rank	Verifier	Methods
2025	PIONEER MARINE HELLAS S.A.	10.6	25.5	−58%	297 of 2,723	DNV	A
2024	PIONEER MARINE HELLAS S.A.	–	–	–	–	DNV	A
2023	not published	9.89	20.7	−52%	189 of 1,045	DNV	A
2022	not published	10.3	21.6	−52%	143 of 1,034	DNV	A
2021	not published	–	–	–	–	Lloyd's Register	B
2020	not published	15.3	24.5	−38%	194 of 1,167	Lloyd's Register	B
2019	not published	9.52	25.0	−62%	75 of 1,154	Lloyd's Register	B
2018	not published	11.8	24.9	−53%	135 of 1,044	Lloyd's Register	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.