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)

#641 of 3,531 bulk carriers

CO₂ intensity

3.5 g CO₂/dwt·nm

vs segment average (4.87)

-29% 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
594	MYRTO IMO 9518086	82,131	2013	229 m	Mitsui - 6S60MC-C	3.4	A
603	MEGHNA ADVENTURE IMO 9805764	62,472	2018	200 m	Kawasaki - 6S50MC-C	3.4	A
602	YASA TEAM IMO 9296250	75,621	2006	225 m	MAN - 7S50MC-C	3.4	A
604	ZHENG FAN IMO 9296858	87,052	2005	229 m	Diesel United - 6RTA58T	3.4	A
609	CL PEKING IMO 9911599	85,174	2021	230 m	MAN - 6S60ME-C10	3.4	A
608	HARVEST TIME IMO 9643881	95,263	2015	237 m	Mitsubishi - 6UEC60LSE	3.4	A
605	MEGHNA LEGACY IMO 9846275	63,449	2019	200 m	Hitachi - 6S50ME-B9	3.4	A
615	LV STAR IMO 9553218	79,252	2012	229 m	MAN - 7S50MC-C	3.4	A
614	KOULITSA 2 IMO 9639684	78,129	2013	225 m	Mitsui - 6S60MC-C	3.4	A
613	MELTEMI IMO 9952402	82,206	2022	229 m	MAN - 6G50ME-C9	3.4	A
612	MSC CARINA IMO 9625944	104,183	2013	254 m	MAN - 6S60MC-C	3.4	A
611	LEMESSOS WIND IMO 9516399	76,523	2009	225 m	MAN - 6S60MC	3.4	A
610	DARYA AUM IMO 9768605	81,109	2018	229 m	MAN - 6S60ME-C	3.4	A
607	AQUAGRACE IMO 9764087	81,672	2017	229 m	MAN - 6S60ME-C8	3.4	A
606	LIME ALINA IMO 9948425	85,035	2022	227 m	Dalian Marine Diesel Co Ltd - China 6S60ME-C8-HPSCR	3.4	A
616	ROLAND OLDENDORFF IMO 9463633	121,448	2007	260 m	Doosan - DOOSAN-MAN 6S60MC-C	3.5	A
617	KALEY IMO 9700689	63,283	2015	200 m	Doosan - 5S60ME-C8	3.5	A
619	PORT OSAKA IMO 9838541	62,716	2019	200 m	MAN - 6S50MC-C	3.5	A
618	BULK CONCORD IMO 9516387	76,600	2009	225 m	Mitsui - 6S60MC	3.5	A
622	SDTR DORA IMO 9859026	81,780	2019	229 m	MAN - 6S60ME-C8	3.5	A
621	HG HAMBURG IMO 9954981	64,199	2024	200 m	MAN-B&W 6G50ME-C9	3.5	A
620	ARIETTA LILY IMO 9727479	81,773	2017	229 m	Mitsui - 6S60MC-C8	3.5	A
623	SPIRIT OF HO-PING IMO 9433638	82,152	2011	229 m	MAN - 6S60MC-C	3.5	A
624	PAC CHRISTINA IMO 9913690	63,088	2022	200 m	MAN - 5S60ME-C8	3.5	A
627	BERGE TATEYAMA IMO 9866706	63,511	2020	200 m	MAN - 6S50ME-B9.3	3.5	A
626	EXCELSIOR DIVA IMO 9960198	63,739	2023	200 m	MAN-B&W 6S50ME-B9	3.5	A
625	NAVIOS CITRINE IMO 9782170	81,626	2017	229 m	Mitsui - 6S60ME-C8	3.5	A
630	PORT KYOTO IMO 9942093	63,733	2021	200 m	MAN - 6S50ME-B9	3.5	A
629	SDTR GLORIA IMO 9877896	84,983	2022	227 m	UnKnown 6S60ME-C8-HPSCR	3.5	A
628	EFE MERSIN IMO 9792022	60,000	2017	198 m	Diesel United - 6RT-flex50	3.5	A
640	BULK SWEDEN IMO 9691589	77,126	2014	225 m	MAN - 6S60ME-C	3.5	A
632	ZHONG CHANG ZHOU SHAN IMO 9670808	75,408	2013	225 m	MAN - 5S60ME-C	3.5	A
631	AQUALIBRA IMO 9765603	63,948	2018	200 m	Mitsui - 6S50ME-B9	3.5	A
639	AEOLIAN BREEZE IMO 9620621	78,092	2012	225 m	Mitsui - 6S60MC-C	3.5	A
638	MAGIC PERSEUS IMO 9582477	82,158	2013	229 m	MAN - 6S60MC-C	3.5	A
637	RANGER IMO 9493999	82,172	2012	229 m	Mitsui - 6S50MC-C	3.5	A
636	ACRUX AMELIA IMO 9909194	82,577	2021	229 m	MAN - 6S60ME-C10	3.5	A
635	KM HAKATA IMO 9659830	95,349	2013	235 m	MAN - 6S60MC	3.5	A
634	BESKIDY IMO 9582958	82,138	2013	229 m	Mitsui - 6S60MC-C	3.5	A
633	DE MING HAI IMO 9364746	76,431	2008	225 m	Hudong Heavy Machinery - 5S60MC	3.5	A
650	IDOMENEAS IMO 9448035	114,167	2010	250 m	Hyundai - 6S60MC-C	3.5	A
649	BBG HONOR IMO 9702716	81,917	2015	229 m	CSSC - 6S60ME-C8	3.5	A
648	CS HANGZHOU IMO 9830070	81,600	2014	229 m	Hudong Heavy Machinery - 6S60ME	3.5	A
647	JAGUAR MAX IMO 9589140	81,309	2012	229 m	Hyundai - 7S50MC-C8	3.5	A
646	VIBEKE IRIS IMO 9744996	81,886	2016	229 m	Mitsui - 6S60ME-C9	3.5	A
645	PLAINPALAIS IMO 9739032	81,756	2015	229 m	MAN - 6S60MC-C8	3.5	A
644	SAKIZAYA ELEGANCE IMO 9713806	81,938	2015	229 m	MAN - 6S60ME-C8	3.5	A
643	ULTRA JAGUAR IMO 9723136	81,922	2016	229 m	MAN - 6S50MC-C	3.5	A
642	GCL ICON IMO 9880245	82,576	2021	229 m	MAN - 6S60ME-C10	3.5	A
641	LONG SHAN HU IMO 9238507	75,679	2002	225 m	Mitsui - 6S60MC	3.5	A

Page 13 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.