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)

#745 of 3,436 bulk carriers

CO₂ intensity

3.5 g CO₂/dwt·nm

vs segment average (4.71)

-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

3,507

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
701	AEOLIAN VICTORY IMO 9433602	82,152	2010	229 m	Mitsui - 6S60MC-C	3.5	B
700	BELGRANO IMO 9708992	81,870	2015	229 m	MAN - 6S60ME-C	3.5	B
707	BBG TIESHAN IMO 9847401	81,577	2020	229 m	DALIAN MARINE - 6S60ME-C8	3.5	B
706	PENGLAI IMO 9952438	82,236	2023	229 m	MAN - 6G50ME-C9	3.5	B
708	AQUAPISCES IMO 9757022	60,238	2016	198 m	Diesel United - 6RT-flex50	3.5	B
705	SINCERITY DIVA IMO 1016135	81,992	2025	229 m	MAN-B&W 6S50ME-C10	3.5	B
704	KASPAR OLDENDORFF IMO 9849825	81,192	2020	228 m	Yichang - 6S60ME-C8	3.5	B
703	SEABULK IMO 9936927	81,996	2022	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.5	B
713	MANHASSET QUEEN IMO 9991276	63,654	2024	200 m	MAN-B&W 6S50ME-C10	3.5	B
709	KAI OLDENDORFF IMO 9969807	82,120	2025	229 m	MAN - 6G50ME-C9	3.5	B
712	LUCKY GLORY IMO 9254111	74,269	2003	225 m	Kawasaki - 7S50MC-C	3.5	B
720	THALASSINI IMO 9286592	82,977	2005	229 m	MAN - 7S50MC-C	3.5	B
711	KMAX VISION IMO 9436654	91,913	2009	230 m	STX - 7 S 50 MC-C	3.5	B
722	ELENA IMO 9336880	82,356	2009	225 m	MAN - 6S60MC	3.5	B
721	SSI PRIVILEGE II IMO 1018121	63,651	2025	200 m	MAN-B&W 6G50ME-C9	3.5	B
710	PAREA IMO 9433652	80,594	2012	225 m	MAN - 7S50MC-C	3.5	B
719	BIRTE OLDENDORFF IMO 9448047	114,500	2010	250 m	Hyundai - 6S60MC-C	3.5	B
718	XIAO MAY IMO 9891878	85,180	2021	230 m	MAN - 6S60ME-C10	3.5	B
717	SSI DARING II IMO 1018133	63,643	2025	200 m	MAN-B&W 6G50ME-C9	3.5	B
716	QUEEN RIVER IMO 1036513	64,183	2025	200 m	MAN-B&W 6S50ME-C9	3.5	B
715	ELENI M II IMO 9838527	62,661	2020	200 m	UnKnown MAN B/W	3.5	B
714	ZY JUHE IMO 1015143	63,833	2024	200 m	MAN-B&W 6G50ME-C9	3.5	B
723	TROODOS AIR IMO 9698226	84,849	2016	229 m	MAN - 6S60ME-C	3.5	B
724	POSEIDON VENTURE IMO 9362229	76,585	2006	225 m	Mitsui - 6S60MC	3.5	B
729	UNION GLORY IMO 9541631	55,088	2010	190 m	Mitsui - 6S50MC-C	3.5	B
733	RIPLEY PROSPERITY IMO 9464417	76,565	2008	225 m	Mitsui - 6S60MC	3.5	B
728	CHARM LOONG IMO 9464390	76,636	2008	225 m	Mitsui - 6S60MC	3.5	B
731	HIROSHIMA STAR IMO 9770567	81,789	2017	229 m	Mitsui - 6S60ME-C8	3.5	B
730	ARROW LADY IMO 9304215	76,752	2005	225 m	Mitsui - 7 S 50 MC-C	3.5	B
727	LAUSANNE IMO 9775385	60,696	2017	198 m	Diesel United - 6RT-flex50	3.5	B
726	LITO IMO 9601338	81,970	2012	229 m	Doosan - 6S60MC-C	3.5	B
725	GREEN K-MAX 1 IMO 9838058	80,856	2019	229 m	Hyundai - 6S60ME-C8	3.5	B
732	OMICRON SKY IMO 9330329	77,031	2006	225 m	Hitachi - 6S70MC	3.5	B
736	TOKYO QUEEN IMO 9841287	85,062	2020	229 m	Mitsui - 6S60ME-C8	3.5	B
737	ATLANTIC SAKURA IMO 9865348	81,727	2020	229 m	MAN - 6S60ME-C10	3.5	B
735	SDM CHONGQING IMO 9949235	64,334	2023	210 m	MAN-B&W 6G50ME-C9	3.5	B
739	ELEPHANTA IMO 9964819	66,301	2023	200 m	MAN-B&W 6S50ME-C9	3.5	B
738	ANTHEA V IMO 9760043	66,609	2016	200 m	MAN - 6S50ME-B9	3.5	B
734	MEDUSA IMO 9461130	82,194	2010	229 m	Mitsui - 7 S 50 MC-C	3.5	B
743	SHANDONG FU YUAN IMO 9734769	81,781	2018	229 m	Wärtsilä - 6S60ME-C8	3.5	B
742	ZHAO YANG FENG IMO 9576791	75,395	2012	225 m	MAN - 5S60MC	3.5	B
741	STAR MARIA IMO 9401489	82,598	2007	229 m	Mitsui - 7 S 50 MC-C	3.5	B
740	JING LU HAI IMO 9747558	77,927	2015	225 m	MAN - 5S60ME-C8	3.5	B
744	PEDHOULAS ROSE IMO 9738038	82,068	2017	229 m	DALIAN MARINE - 6S60ME-C8	3.5	B
750	BELYAMATO IMO 9942055	63,696	2022	200 m	Hitachi Zosen Corp - Japan 6S50ME-C9-HPSCR	3.5	B
749	CL DAYANG HE IMO 9880283	80,860	2020	229 m	Doosan - 6S60ME-C8	3.5	B
748	CATHARINA OLDENDORFF IMO 9713923	95,591	2010	235 m	MAN - 6S60MC-C	3.5	B
747	GREEN K-MAX 6 IMO 9862621	80,890	2020	229 m	MAN - 6S60ME-C8 (Tier II)	3.5	B
746	BROAD RISE IMO 9342918	76,585	2006	225 m	MAN - 6S60MC	3.5	B
745	SANTA TERESA IMO 9852664	63,481	2019	200 m	Mitsui - 6S50ME-B9	3.5	B

Page 15 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.