Most Emission-Efficient Bulk Carriers

Ships ranked by AER (Annual Efficiency Ratio) — grams of CO₂ emitted per tonne of deadweight carried one nautical mile (g CO₂/dwt·nm), the IMO carbon-intensity metric behind the CII rating — from official EU MRV emissions data for reporting year 2024. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2024)

#316 of 3,531 bulk carriers

CO₂ intensity

3.1 g CO₂/dwt·nm

vs segment average (4.87)

-37% greener

Bulk Carrier Container Ship Oil Tanker Chemical Tanker Gas Carrier LNG Carrier General Cargo Vehicle Carrier Refrigerated Cargo Ro-Ro Cargo

Sort 🌱 Greenest first 🔧 Least efficient first — retrofit candidates

Size (DWT)

All sizes < 25,000 DWT 25k – 60k DWT 60k – 100k DWT 100k – 200k DWT > 200,000 DWT

Year

2025 2024

3,604

vessels ranked

1.42

greenest (g CO₂/t·nm)

4.65

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
302	EPIC RADIANCE IMO 9970234	82,555	2024	229 m	MAN-B&W 6S60ME-C10	3.0	A
301	GEMMA IMO 9602784	313,049	2012	330 m	Wärtsilä - 6RTA84T-D	3.0	A
303	PENGLAI IMO 9952438	82,236	2023	229 m	MAN - 6G50ME-C9	3.0	A
308	ROYAL NEPTUNE IMO 9851517	80,873	2020	229 m	MAN - 6S60ME-C	3.0	A
306	THUNDER ISLAND IMO 9897901	82,558	2021	229 m	MAN - 6S60ME-C10	3.0	A
309	BABY HERCULES IMO 9478822	110,861	2011	240 m	Mitsui - 6S60MC-C	3.0	A
305	JEN LR IMO 9947249	82,411	2023	229 m	Mitsui Engineering & Shipbuilding C Ltd - Japan 6S60ME-C10-EGRBP	3.0	A
307	JAG AMAR IMO 9723851	82,083	2017	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.0	A
304	PORT FUKUOKA IMO 9932799	64,611	2022	200 m	Japan Engine Corp - Akashi 6UEC50LSH-EcoC3	3.0	A
310	ARTEMIS I IMO 9830991	80,976	2019	229 m	MAN - 5S60MC-C8 (Tier II)	3.0	A
311	MARINI IMO 9639529	205,854	2014	300 m	HHI - 6S70MC-C8.2	3.0	A
315	AQUAVITA WEALTH IMO 9985784	64,700	2024	200 m	MAN-B&W 6S50ME-C9	3.1	A
314	RIO DULCE IMO 9501617	178,076	2011	292 m	DALIAN MARINE - 6S70MC	3.1	A
313	CHAILEASE BLOSSOM IMO 9622540	82,146	2013	229 m	Mitsui - 6S60MC-C	3.1	A
312	EASTERN GLAMOUR IMO 9459345	115,461	2011	254 m	MAN - 6S50MC-C	3.1	A
316	PEDHOULAS COMMANDER IMO 9381524	83,684	2008	229 m	Mitsui - 6S60MC-C	3.1	A
317	HSL VEGAS IMO 9928372	81,981	2022	229 m	Hudong Heavy Machinery - 6S50ME-B9	3.1	A
319	SSI INTERCEPTOR IMO 9919008	63,896	2023	200 m	MAN - 6G50ME-C9	3.1	A
318	PYXIS OCEAN IMO 9798856	79,898	2017	229 m	Mitsui - 6S60ME-C8	3.1	A
320	EPIC HARMONY IMO 9922005	82,546	2021	229 m	Mitsui Engineering & Shipbuilding C Ltd - Japan 6S60ME-C10-EGRBP	3.1	A
321	BW MATSUYAMA IMO 9836488	81,810	2019	229 m	MAN - 6S60ME-C8	3.1	A
324	CL ZHANGJIAJIE IMO 9953365	64,766	2024	200 m	MAN-B&W 6S50ME-C9	3.1	A
323	MG MERCURY IMO 9774290	84,790	2016	229 m	Hitachi - 6S60ME-C	3.1	A
322	BTG MISTI IMO 9952488	82,235	2023	229 m	MAN - 6G50ME-C9	3.1	A
327	CLIVIA OLDENDORFF IMO 9599195	98,704	2013	239 m	Mitsui - 6S60MC-C	3.1	A
326	NBA RUBENS IMO 9477220	107,290	2011	255 m	Mitsubishi - 6S60MC-C	3.1	A
325	LEO IRIS IMO 9709001	81,820	2015	229 m	MAN - 6S60ME-C	3.1	A
329	PENELOPE OLDENDORFF IMO 9464596	114,861	2010	255 m	MAN - 6S60MC-C	3.1	A
328	MAIRAKI IMO 9444546	181,016	2011	292 m	MAN - 6S70MC-C	3.1	A
330	NAVIOS FULVIA IMO 9500986	179,263	2010	292 m	HHI - 6S70MC-C7	3.1	A
332	SEACON HAMBURG IMO 9936276	85,505	2023	229 m	Hudong Heavy Machinery Co Ltd - China 6S60ME-C10-HPSCR	3.1	A
331	SEACON TOKYO IMO 9941958	66,628	2023	200 m	Mitsui E&S DU Co Ltd 6S50ME-C9-EGRBP	3.1	A
334	SASEBO GREEN IMO 9675468	77,880	2014	225 m	MAN - 6S60ME-C8	3.1	A
333	JOSCO DAZHOU IMO 9934187	64,247	2022	200 m	MAN - 6S50ME-C9	3.1	A
337	SEAGEM IMO 9758375	81,714	2019	229 m	MAN - 6S60ME-C8	3.1	A
338	KYPROS BRAVERY IMO 9694490	77,997	2015	225 m	Mitsui - 6S60ME-C8	3.1	A
336	TRUSTN TRADER IMO 9937555	82,245	2023	229 m	Yichang - 6S60ME-C8	3.1	A
344	LUCKY JESSICA IMO 9332793	77,247	2006	229 m	Mitsui - 5S60MC	3.1	A
339	SEAHUNTER IMO 9974424	63,253	2024	200 m	MAN-B&W 6G50ME-C9	3.1	A
335	PUPLINGE IMO 9782156	81,672	2016	229 m	Hitachi - 6S60MC-C	3.1	A
343	AQUAVITA AIR IMO 9846110	82,192	2020	229 m	Kawasaki - 6S60MC-C8	3.1	A
342	CMB RUBENS IMO 9832640	63,514	2018	200 m	Mitsui - 6S50ME-B9	3.1	A
341	MEDI EGADI IMO 9802217	81,874	2018	229 m	Mitsui - 6S60ME-C8	3.1	A
340	OCEANIA GRAECA IMO 9841952	82,033	2019	229 m	DALIAN MARINE - 6S60ME-C8 (Tier II)	3.1	A
345	BBG MUARA IMO 9929003	81,991	2022	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.1	A
350	CIARA MARU IMO 9932098	82,626	2022	229 m	MAN - 6S60ME-C10	3.1	A
349	PRAIRIE IMO 9860506	81,614	2019	229 m	Mitsui - 6S60ME-C8	3.1	A
348	PHILIPP OLDENDORFF IMO 9540869	115,156	2012	254 m	Hudong Heavy Machinery - 6 S 60 MC-C 8	3.1	A
347	MYRTO C IMO 9752383	81,011	2017	229 m	Doosan - 6S60ME-C8	3.1	A
346	OUTLANDER IMO 9218337	45,526	2000	186 m	Mitsui - 6S50MC	3.1	A

Page 7 of 71 — 3,531 vessels

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Engine intelligence

Which engines power the greenest fleets?

The main engine is the single largest CO₂ source on board — typically well over 80% of a ship's emissions come from propulsion. We aggregated this ranking the other way around: every engine design is scored by the measured carbon intensity of the vessels carrying it, licensee-built units merged under their design brand. The verdict from the 2024 data — modern dual-fuel designs like MAN B&W's ME-GI and WinGD's X-DF families, together with EGR/SCR-abated and ultra-long-stroke G-type engines, consistently power the most emission-friendly ships in service.

Emission-friendly engine ranking

AER (Annual Efficiency Ratio) = annual CO₂ emissions ÷ (deadweight × distance sailed), the IMO carbon-intensity metric used for CII ratings. It is built only from measured CO₂, distance and deadweight — not the self-reported cargo transport-work figure, which is unreliable. Implausible outliers (top 2% per segment) are excluded. Grade A–E reflects each vessel's rank within its segment. Source: EMSA THETIS-MRV.