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 2025. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2025)

#988 of 3,436 bulk carriers

CO₂ intensity

3.7 g CO₂/dwt·nm

vs segment average (4.71)

-21% 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

3,507

vessels ranked

1.74

greenest (g CO₂/t·nm)

4.46

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
949	HONEY BADGER IMO 9711315	61,320	2015	200 m	Hudong Heavy Machinery - 6S50ME-B9	3.7	B
951	EVANGELISTRIA IMO 9442718	82,514	2007	229 m	MAN - 7S50MC-C	3.7	B
959	BERN IMO 9276171	76,878	2004	225 m	MAN - 5S60MC-C	3.7	B
958	AI STRATIS IMO 9952426	82,176	2023	229 m	MAN - 6G50ME-C9	3.7	B
957	PROUD UNITY IMO 9860659	63,481	2020	200 m	MAN - 6S50ME-B9	3.7	B
956	PETER OLDENDORFF IMO 9464663	114,840	2012	255 m	MAN - 6S60MC-C	3.7	B
955	SPAR ARIES IMO 9701920	63,247	2015	200 m	MAN - 5S60ME-C8	3.7	B
954	RICHARD OLDENDORFF IMO 9462366	121,354	2011	260 m	MAN - 6S60MC-C	3.7	B
953	SHANDONG FU YOU IMO 9734745	81,781	2018	229 m	Wärtsilä - 6S60ME-C8	3.7	B
952	TALIMEN IMO 9718026	81,400	2016	229 m	Yichang - 6S60ME-C8	3.7	B
961	ROYAL IMO 9919656	61,201	2022	200 m	MAN - 6S50ME-B9	3.7	B
965	DESERT VIRTUE IMO 9883132	63,553	2020	200 m	MAN - 6S50ME-B9	3.7	B
968	GCL LUXEMBOURG IMO 9921843	82,310	2021	229 m	MAN - 6S60ME-C10	3.7	B
964	HYDRA IMO 9949479	61,205	2023	200 m	MAN - 6S50ME-B9	3.7	B
971	SDTR DORIS IMO 9877860	84,998	2021	227 m	MAN - 6S60ME-C8	3.7	B
970	GENCO MAYFLOWER IMO 9714680	63,310	2017	200 m	Hudong Heavy Machinery - 5G60ME-C9	3.7	B
969	NS SHENZHEN IMO 9955026	64,215	2024	200 m	MAN - 6G50ME-C9	3.7	B
963	AOM FEDERICA IMO 9870460	81,914	2020	229 m	MAN - 6S60ME-C8	3.7	B
967	YM ADVANCE IMO 9860685	63,509	2019	200 m	MAN - 6S50ME-B9	3.7	B
962	FENG HUANG FENG IMO 9576806	75,396	2012	225 m	MAN - 5S60MC	3.7	B
966	LYRA Μ IMO 9668063	55,725	2014	190 m	Mitsui - 6S50ME-B9	3.7	B
976	KN BLOSSOM IMO 9906300	82,032	2021	229 m	Hudong Heavy Machinery Co. Ltd. 6S60ME-C8.5	3.7	B
984	BRISTOL IMO 9966829	64,701	2024	200 m	Hudong Heavy Machinery Co Ltd - China 6S50ME-C9-HPSCR	3.7	B
975	INCE ILGAZ IMO 9561863	76,579	2010	225 m	Mitsui - 6S60MC	3.7	B
986	KASTOR IMO 9843405	80,996	2020	229 m	Doosan - 6S60ME-C8 (Tier II)	3.7	B
985	OMER DADAYLI IMO 9960203	63,733	2023	200 m	MAN-B&W 6S50ME-C9	3.7	B
974	ELIZABETH M II IMO 9863807	63,683	2020	200 m	MAN - 6S50ME-C9 (Tier II)	3.7	B
983	NAVIOS MAGELLAN II IMO 9876048	82,037	2020	229 m	MAN - 6S60ME-C8	3.7	B
982	LIGHT VENTURE IMO 9868895	81,492	2020	229 m	6S60ME-C8	3.7	B
981	INCE ANTALYA IMO 1044015	63,601	2023	200 m	MAN-B&W 6G50ME-C9	3.7	B
980	NORD ANTARES IMO 9933224	82,258	2022	229 m	CSSC-MES Diesel Co. Ltd. 6S60ME-C10	3.7	B
979	GREAT AFFLUENCE IMO 9990868	64,681	2024	200 m	MAN-B&W 6S50ME-C9	3.7	B
978	JOHNY IMO 9537903	93,039	2010	229 m	Hyundai - 6 S 60 MC-C 7	3.7	B
973	JAGUAR MAX IMO 9589140	81,309	2012	229 m	Hyundai - 7S50MC-C8	3.7	B
972	HN DORIS IMO 9609146	81,007	2013	229 m	MAN - 5S60MC-C	3.7	B
987	SANTA CRUZ IMO 9442495	83,456	2011	229 m	Kawasaki - 6S60MC-C	3.7	B
977	AMIS STAR IMO 9865350	61,123	2019	200 m	MAN - 6S50ME-B9	3.7	B
990	PIA OLDENDORFF IMO 9464675	114,775	2013	255 m	MAN - 6S60MC-C	3.7	B
992	MOREA IMO 9699880	63,280	2015	200 m	MAN - 5S60ME-C8 Tier II	3.7	B
989	GLORY NAVIGATOR IMO 9336907	82,331	2008	225 m	MAN - 6S60MC	3.7	B
993	GEBE OLDENDORFF IMO 9727596	80,943	2016	229 m	MAN - 6S60ME-C8	3.7	B
988	G. B. CORRADO IMO 9314624	77,061	2008	225 m	Kawasaki - 5S60MC-C	3.7	B
991	GOLDEN FROZEN IMO 9955583	84,504	2021	227 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 6S60ME-C10-HPSCR	3.7	B
1000	ORION IMO 9735945	63,473	2015	200 m	Wärtsilä - 5RT-flex58T	3.7	B
999	ST AJISAI IMO 9919668	61,105	2022	200 m	MAN - 6S50ME-B9	3.7	B
998	YONG HAI 9 IMO 9500948	75,485	2010	225 m	Hudong Heavy Machinery - 5S60MC	3.7	B
997	LIVITA IMO 9801299	63,532	2017	200 m	Hitachi - 6S50ME-B9	3.7	B
996	DONA BIBI IMO 9600619	81,966	2012	229 m	MAN - 6S60MC-C8	3.7	B
995	VULCANIA IMO 9718686	82,036	2015	229 m	MAN - 6S60ME-C8	3.7	B
994	FAR EASTERN JUPITER IMO 9442768	82,655	2007	229 m	MAN - 7S50MC-C	3.7	B

Page 20 of 69 — 3,436 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 2025 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.