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)

#999 of 3,531 bulk carriers

CO₂ intensity

3.8 g CO₂/dwt·nm

vs segment average (4.87)

-22% 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
950	LAUSANNE IMO 9775385	60,696	2017	198 m	Diesel United - 6RT-flex50	3.8	B
959	BELGRACE IMO 1024455	63,718	2024	200 m	HITACHI ZOSEN CORPORATION ARIAKE WORKS	3.8	B
958	VAN HANNAH IMO 9965021	63,926	2023	200 m	MAN - 6G50ME-C9	3.8	B
957	NORDIC OSHIMA IMO 9687227	76,180	2014	225 m	MAN - 5S60MC-C	3.8	B
956	STORMHARBOUR IMO 9519157	76,583	2009	225 m	Kawasaki - 6S60MC	3.8	B
955	JAG AARATI IMO 9478200	80,323	2011	229 m	MAN - 7S50MC-C	3.8	B
954	HYDRA IMO 9949479	61,205	2023	200 m	MAN - 6S50ME-B9	3.8	B
953	ITHOMI IMO 9861079	64,049	2020	200 m	Mitsui - 6S50ME-B9.3	3.8	B
952	GULF TRADER IMO 9218844	75,214	2002	225 m	6S60MC-MKVI	3.8	B
951	GNG CONCORD 2 IMO 9715311	75,700	2014	225 m	MAN - 5S60ME-C	3.8	B
963	ROSE IMO 9464508	76,619	2008	225 m	MAN - 6S60MC	3.8	B
962	WOOYANG IVY IMO 9782326	63,590	2017	200 m	Hitachi - 6S50ME-B9	3.8	B
964	CSSC YUAN JING IMO 9830056	81,617	2018	229 m	Hudong Heavy Machinery - 6S60ME	3.8	B
961	XH HOPE IMO 9877925	84,998	2022	227 m	CSSC Marine Power Co Ltd - China 6S60ME-C8-HPSCR	3.8	B
968	DIAMOND GLOBE IMO 9828857	82,027	2018	229 m	DALIAN MARINE - 6S60ME-C8	3.8	B
966	BETTYS LOVE IMO 9291406	77,171	2008	225 m	Mitsui - MITSUI MAN B&W 6S60MC	3.8	B
965	SEABULK IMO 9936927	81,996	2022	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.8	B
967	CHRISTINA V IMO 9658915	77,211	2014	225 m	MAN - 5S60MC-C8	3.8	B
970	ALEXANDRA KPN IMO 9839844	61,644	2019	200 m	Hudong Heavy Machinery - 6S50ME-C9	3.8	B
969	MARINE HONOR IMO 9455545	113,919	2011	250 m	Hyundai - 6S60MC-C	3.8	B
971	SEAJOY IMO 9213820	73,454	2000	225 m	Sulzer - 7RTA48T	3.8	B
973	GENERAL GUISAN IMO 9888027	63,474	2020	200 m	MAN - 6S50ME-C9	3.8	B
972	NORDIC ORION IMO 9529463	75,603	2011	225 m	Kawasaki - 6S60MC-C	3.8	B
975	CAPETAN COSTAS S IMO 9595735	81,542	2012	229 m	MAN - 6S60MC-C	3.8	B
974	W-SKY IMO 9476666	92,929	2011	229 m	HHI - 6S60MC-C7	3.8	B
976	MAGIC ARIEL IMO 9855599	81,054	2020	229 m	Yichang - 6S60ME-C8	3.8	B
981	DANAE IMO 9719587	81,252	2017	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.8	B
988	ZHENG RONG IMO 9593828	81,793	2013	229 m	MAN - 5S60ME-C	3.8	B
980	SSI AVENGER IMO 9284544	52,949	2004	188 m	MAN - 6S50MC-C	3.8	B
987	SENTOSA 66 IMO 9230141	73,180	2002	225 m	7S50MC-C	3.8	B
986	BULK PRUDENCE IMO 9713478	61,330	2014	200 m	MAN - 6S50ME-B9	3.8	B
985	ARUNA EAGLE IMO 9494486	59,941	2012	200 m	Hyundai - 7S50MC-C	3.8	B
979	DESERT HONOUR IMO 9861330	63,553	2014	200 m	MAN - 6S50MC-B9	3.8	B
983	GENCO COLUMBIA IMO 9758129	60,294	2016	200 m	Kawasaki - 6S50ME-B9	3.8	B
982	AMIS RESPECT IMO 9821835	63,449	2020	200 m	MAN - 6S50ME-B9	3.8	B
978	SIBONEY M IMO 9875018	81,621	2020	229 m	MAN - 6S60ME-C8	3.8	B
977	EMERALD JINTANG IMO 9991525	63,910	2024	200 m	MAN-B&W 6G50ME-C9	3.8	B
984	MEGHNA LIBERTY IMO 9668051	55,905	2014	190 m	Mitsui - 6S50ME-B9	3.8	B
993	AOM GAIA IMO 9623702	82,009	2014	229 m	MAN - 6S60MC-C	3.8	B
996	ULUSOY-12 IMO 9586423	79,403	2011	229 m	Wärtsilä - 7RT-flex50	3.8	B
997	ASIAN SUMMIT IMO 9725005	62,466	2017	200 m	Mitsui - 6S50ME-B9	3.8	B
995	BLUE CRYSTAL IMO 9591985	78,103	2012	225 m	MAN - 6S60MC-C	3.8	B
994	OCEAN CONDUCTOR IMO 9972012	40,050	2024	183 m	Mitsui - 5S50ME-C9	3.8	B
992	XENIA IMO 9317834	87,144	2006	229 m	Diesel United - 6RTA58T	3.8	B
991	BULLDOG IMO 9728136	81,845	2016	229 m	MAN - 6S60ME-C	3.8	B
990	SEABEE IMO 9698941	62,653	2015	200 m	MAN - 5S60ME-C8 Tier II	3.8	B
989	PENEY IMO 9715440	81,886	2016	229 m	MAN - 6S60ME-C8	3.8	B
998	LUCKY GLORY IMO 9254111	74,269	2003	225 m	Kawasaki - 7S50MC-C	3.8	B
1000	ARETHUSA IMO 9855563	81,541	2020	229 m	Yichang - 6S60ME-C8	3.8	B
999	ETRON IMO 9718038	81,080	2016	229 m	Yichang - 6S60ME-C8	3.8	B

Page 20 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.