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)

#808 of 3,531 bulk carriers

CO₂ intensity

3.6 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
807	NORSE EVOLUTION IMO 9964821	66,305	2023	200 m	MAN-B&W 6S50ME-C9	3.6	B
806	BRIGHT VENTURE IMO 9868883	81,486	2020	229 m	6S60ME-C8.2	3.6	B
805	DUCHESS ROSARIO IMO 9870458	81,999	2020	229 m	MAN - 6S60ME-C8	3.6	B
804	RUBY ETERNITY IMO 9950428	63,807	2023	200 m	MAN - 6S50ME-C9	3.6	B
803	BELTRADER IMO 9911642	61,043	2021	200 m	MAN - 6S50ME-B9	3.6	B
802	BIRTE OLDENDORFF IMO 9448047	114,500	2010	250 m	Hyundai - 6S60MC-C	3.6	B
799	BELTOKYO IMO 9916238	63,626	2021	200 m	MAN - 6S50ME-B9	3.6	B
809	PROUD UNITY IMO 9860659	63,481	2020	200 m	MAN - 6S50ME-B9	3.6	B
808	KN BLOSSOM IMO 9906300	82,032	2021	229 m	Hudong Heavy Machinery Co. Ltd. 6S60ME-C8.5	3.6	B
810	SSI AURORA IMO 9960239	63,728	2023	200 m	MAN-B&W 6S50ME-B9	3.6	B
812	ANADOLU S IMO 9667758	52,199	2014	183 m	Mitsui - 6S50MC-C	3.6	B
811	PETER OLDENDORFF IMO 9464663	114,840	2012	255 m	MAN - 6S60MC-C	3.6	B
815	ROYAL QUEST IMO 9991238	63,564	2024	200 m	MITSUI E&S Co., Ltd. Marine Propulsion Systems Div. Tamano Factory	3.6	B
814	AQUAHOLIC IMO 9363089	83,730	2008	229 m	MAN - 6S60MC-C	3.6	B
813	MEGHNA PRINCESS IMO 9805776	62,534	2019	200 m	MAN - 6S50MC-C	3.6	B
820	NORDIC OASIS IMO 9727120	75,800	2016	225 m	MAN - 5S60MC-C	3.6	B
819	SAKIZAYA KALON IMO 9749908	81,691	2014	229 m	Mitsui - 6S60ME-C8	3.6	B
821	ALEXANDROS PETRAKIS IMO 9442938	76,596	2008	225 m	MAN - 6S60MC	3.6	B
818	JOSCO GUIZHOU IMO 9872468	61,307	2020	200 m	MAN - 6S50ME-B9	3.6	B
826	AMOY SUNNY IMO 9342841	76,598	2006	225 m	MAN - 6S60MC	3.6	B
825	LUCKY GLORY 2 IMO 9335989	76,942	2006	225 m	MAN - 6S60MC	3.6	B
824	MSXT ATHENA IMO 9835068	81,723	2015	229 m	Hudong Heavy Machinery - 6S60ME	3.6	B
817	PONENTE IMO 9351763	83,051	2006	229 m	MAN - 7S50MC-C	3.6	B
823	CENTURION GORYO IMO 9965540	40,541	2024	183 m	Japan Engine Corporation (J-ENG) 6UEC42LSH-EcoD3-EGRBP	3.6	B
822	CEDRIC OLDENDORFF IMO 9591571	95,608	2011	235 m	Mitsui - 6S60MC	3.6	B
816	RB ARIANA IMO 9743980	81,346	2017	229 m	STX - 5G60ME-C9	3.6	B
828	TROODOS SUN IMO 9698238	84,849	2016	229 m	MAN - 6S60ME-C	3.6	B
827	OCEAN GENOVA IMO 9965473	64,187	2023	200 m	MAN-B&W 6S50ME-C9	3.6	B
829	REDMER OLDENDORFF IMO 9463669	121,412	2011	260 m	Doosan - 6S60MC-C	3.6	B
834	JABAL AR RAWDAH IMO 9722041	63,292	2016	200 m	DALIAN MARINE - 5S60ME-C8.2 (Tier II)	3.6	B
833	JAG AKSHAY IMO 9706554	82,044	2016	229 m	MAN - 6S60ME-C8	3.6	B
832	CLARA INSIGNIA IMO 9800427	61,300	2019	200 m	MAN - 6S50ME-B9	3.6	B
839	AOM FEDERICA IMO 9870460	81,914	2020	229 m	MAN - 6S60ME-C8	3.6	B
838	ASIA CONFIDENCE IMO 9747297	81,129	2017	229 m	Doosan - 6S60ME-C8	3.6	B
837	AKAKI IMO 9591143	84,075	2013	235 m	Hyundai - 6S60ME-C8	3.6	B
836	KENDRA OLDENDORFF IMO 9849813	81,122	2019	228 m	Yichang - 6S60ME-C8	3.6	B
835	VITAOCEAN IMO 9470492	82,250	2013	229 m	MAN - 6S60MC-C	3.6	B
831	ZALIV IMO 9935806	61,146	2022	200 m	Hudong Heavy Machinery - 6S50ME-B9	3.6	B
830	GREEN K-MAX 3 IMO 9838072	80,883	2020	229 m	MAN - 6S60ME-C8	3.6	B
850	BULK CROATIA IMO 9875020	81,621	2020	229 m	MAN - 6S60ME-C8	3.7	B
849	GREAT TRIUMPH IMO 9733600	77,834	2015	225 m	MAN - 5S60MC	3.7	B
848	JI XIAN FENG IMO 9523213	75,409	2012	225 m	MAN - 5S60MC	3.7	B
847	BABY CASSIOPEIA IMO 9478846	110,842	2012	240 m	Mitsui - 7S60MC-C	3.7	B
846	STEFANOS IMO 9719575	81,237	2017	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.7	B
845	KM VANCOUVER IMO 9767560	63,374	2016	200 m	MAN - 6S50MC-C8	3.7	B
844	CEMTEX RENAISSANCE IMO 9599119	98,681	2011	240 m	Mitsui - 6S60MC-C	3.7	B
843	SILVA CONCORDIA IMO 9908372	49,521	2021	200 m	Mitsubishi - 6UEC50LSH-EcoC2	3.7	B
842	ROYAL LAUREL IMO 9873163	81,962	2019	229 m	Mitsui - 6S60ME-C8	3.7	B
841	ANDREAS JR IMO 9949352	82,364	2023	229 m	Hudong Heavy Machinery Co Ltd - China 6S60ME-C10-HPSCR	3.7	B
840	AGIOS MAKARIOS IMO 9474709	80,929	2017	229 m	Doosan - 7S50MC-C	3.7	B

Page 17 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.