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)

#851 of 3,531 bulk carriers

CO₂ intensity

3.7 g CO₂/dwt·nm

vs segment average (4.87)

-25% 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
851	GOLDEN FAST IMO 9860116	80,573	2021	229 m	MAN - 6S60ME-C8 (Tier II)	3.7	B
852	SEARIDER IMO 9698953	62,690	2015	200 m	MAN - 5S60ME-C8 Tier II	3.7	B
854	ORPHEUS IMO 9646675	75,631	2017	225 m	Hefei Rongan Power Mchy. Co. Ltd. 5RT-flex58T	3.7	B
853	ANDROMACHE IMO 9717981	81,212	2017	229 m	Yichang - 6S60ME-C8	3.7	B
855	EVRYDIKI IMO 9448023	114,168	2010	250 m	Hyundai - 6S60MC-C	3.7	B
856	HARVEST RAIN IMO 9643893	95,263	2015	237 m	Mitsubishi - 6UEC60LSE-Eco-A2	3.7	B
861	HENG AN YANG IMO 9316854	75,765	2006	225 m	Mitsui - 7 S 50 MC-C	3.7	B
860	ARUNA HULYA IMO 9635391	55,582	2012	188 m	Hyundai - 6S50MC-C8	3.7	B
859	WEN DE IMO 9642772	82,096	2013	229 m	Dalian 5S60ME-C8	3.7	B
858	AEOLIAN IMO 9580209	83,478	2012	229 m	Mitsui - 6S60MC-C	3.7	B
857	SIROCCO IMO 9603996	82,000	2014	229 m	Doosan - 5S60MC-C	3.7	B
862	LADY I IMO 9336610	75,356	2007	225 m	Hitachi - 6S60MC-MKVI	3.7	B
866	DSI AQUILA IMO 9729362	60,309	2015	198 m	Wärtsilä - 6RT-flex50-D	3.7	B
872	AFEA IMO 9354090	88,279	2006	230 m	Hitachi - 6S60MC-MKVI	3.7	B
865	ATALANTA IMO 9494113	82,094	2010	229 m	MAN - 7S50MC-C	3.7	B
874	ELLINA IMO 9398668	82,612	2008	229 m	MAN - 7S50MC-C	3.7	B
873	MAHA AARTI IMO 9355484	77,250	2006	225 m	Kawasaki - MAN B&W 5S60MC-C	3.7	B
864	ULTRA DEDICATION IMO 9790866	63,533	2018	200 m	MAN - 6S50MC-C8	3.7	B
871	NORD ANDROMEDA IMO 9929390	82,251	2022	229 m	CSSC-MES Diesel Co. Ltd. 6S60ME-C10	3.7	B
870	GREEN K-MAX 2 IMO 9838060	80,840	2020	229 m	MAN - 6S60ME-C8 (Tier II)	3.7	B
869	ST CERGUE IMO 9775373	60,696	2014	198 m	Diesel United - 6RT-flex50	3.7	B
868	ROBERT OLDENDORFF IMO 9463645	121,685	2011	260 m	MAN - 6S60MC-C	3.7	B
863	AQUADONNA IMO 1013676	63,526	2024	200 m	MAN-B&W 6S50ME-C10	3.7	B
875	AM ANNABA IMO 9669330	76,079	2010	225 m	Hudong Heavy Machinery - HHM-MAN B&W 5S60ME-C8.2	3.7	B
867	SARITA IMO 9836361	63,988	2019	196 m	MAN - 6S50ME-B9.3	3.7	B
876	WHEAT WEIFANG IMO 9883766	80,868	2020	229 m	6S60ME-C8.2	3.7	B
877	LEM GLADIOLUS IMO 9845817	64,651	2020	200 m	MAN - 7G50ME-C9	3.7	B
880	OCEAN SAGA IMO 9729312	81,499	2015	229 m	CSSC - 6S60ME-C8	3.7	B
879	PRESINGE IMO 9715452	81,886	2015	229 m	MAN - 6S60ME-C8	3.7	B
878	EVER EXCELLENT IMO 9899806	81,935	2021	229 m	MAN - 6S60ME-C8	3.7	B
886	PALAIS IMO 9646649	75,433	2014	225 m	Wärtsilä - 5RT-flex58T	3.7	B
884	STAR CHARIS IMO 9615418	81,710	2013	229 m	Doosan - 5S60MC-C8	3.7	B
885	UNITY EXPLORER IMO 9726035	60,678	2016	200 m	Hyundai - 6G50ME-B9	3.7	B
882	TIGER LILY IMO 9744984	81,886	2016	229 m	Mitsui - 6S60ME-C8	3.7	B
883	LORENZO IMO 9748124	61,250	2016	200 m	Mitsui - 6S50MC-C8	3.7	B
881	GCL MOBILE IMO 9957488	82,525	2023	229 m	MAN-B&W 6S60ME-C10	3.7	B
893	GREAT RICH IMO 9595711	75,523	2012	225 m	MAN - 5S60MC	3.7	B
892	GLORY V IMO 9288473	76,508	2005	225 m	Mitsui - 6S60MC	3.7	B
891	BERGE DOI INTHANON IMO 9908451	63,685	2021	200 m	MAN - 6S50ME-B9	3.7	B
890	PETALON IMO 9469041	86,851	2010	229 m	Hudong Heavy Machinery - 5S60MC-C	3.7	B
889	THALASSINI IMO 9286592	82,977	2005	229 m	MAN - 7S50MC-C	3.7	B
888	DEJIMA IMO 9860594	63,533	2019	200 m	MAN - 6S50MC-B9	3.7	B
887	PANSTAR IMO 9316684	76,629	2005	225 m	Mitsui - 6S60MC-MKVI	3.7	B
900	TAHO AUSTRALIA IMO 9846067	81,788	2015	229 m	MAN - 6S60ME-C8	3.7	B
899	HUA XING HAI IMO 9758583	81,107	2017	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.7	B
898	GCL PARADIP IMO 9921855	82,324	2021	229 m	MAN - 6S60ME-C10	3.7	B
897	SANTA IRINI IMO 9738789	77,119	2015	225 m	MAN - 6S60MC	3.7	B
896	EOLOS ANGEL IMO 9728629	81,600	2016	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.7	B
895	PAVO BRAVE IMO 9894480	64,247	2021	200 m	MAN - 6S50ME-C9	3.7	B
894	CORATO IMO 9749829	81,677	2016	229 m	MAN - 6S60ME-C8.2	3.7	B

Page 18 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.