Most Emission-Efficient General Cargos

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)

#598 of 1,190 general cargos

CO₂ intensity

11.1 g CO₂/dwt·nm

vs segment average (10.91)

+2% higher

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

1,215

vessels ranked

3.23

greenest (g CO₂/t·nm)

11.21

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
551	HOSEI SAKURA IMO 9673197	16,949	2014	132 m	MAN - 7 S 35 MC	10.2	C
552	SIGMA IMO 9350537	10,131	2005	128 m	Daihatsu - 8DKM-28	10.2	C
553	CAN S IMO 9640889	13,999	2013	120 m	MAN - 6L35MC	10.2	C
554	FULDABORG IMO 9559092	14,603	2012	143 m	Wärtsilä - 9L32C	10.3	C
555	OCEAN DREAM IMO 9519511	11,939	2009	117 m	MAKITA - 6S35MC	10.3	C
556	LADY HATICE IMO 9413078	18,930	2009	140 m	MAN - 7 S 35 MC	10.3	C
557	GEMINI CAPO IMO 9662485	10,813	2012	134 m	MAK/Caterpillar - 9M25C	10.3	C
558	KAPITAN SHYRIAGIN IMO 9137234	6,258	1998	98 m	SKL - 6 VD 29/24 AL-2	10.3	C
559	KUBROSLI Y IMO 8000836	11,990	1981	138 m	9TM410	10.3	C
560	ORUBA IMO 9430624	10,611	2007	132 m	SHAANXI HEAVY INDUSTRIES, SHAANXI CHINA 8 PC 2-5 L (I.M.P.)	10.4	C
561	CARTAGENA IMO 9521863	18,809	2012	150 m	STX - STX-MAN 5S50MC-C	10.4	C
562	ARIF AMCA IMO 9616084	11,086	2012	132 m	Wärtsilä - 6L32	10.4	C
563	SELECTA IMO 9424807	14,030	2007	146 m	CHINA 8PC2-5L	10.4	C
564	MUHARREM DADAYLI IMO 9558581	13,449	2010	149 m	MAK/Caterpillar - 8M32C	10.4	C
565	VLIEBORG IMO 9554781	11,902	2012	143 m	MAK/Caterpillar - 8M32C	10.4	C
566	FWN ARCTIC IMO 9931484	12,563	2023	144 m	Wärtsilä - 6L32	10.4	C
567	BOZKURT IMO 9171371	10,555	2000	108 m	Wärtsilä - 6L32	10.4	C
568	TIMBERLAND IMO 9204790	20,406	2000	153 m	Mitsubishi - 6UEC50LS	10.5	C
569	HANA H IMO 9143855	7,600	1998	114 m	MAN - 8L40/45	10.5	C
570	FINNBORG IMO 9419321	14,603	2011	143 m	Wärtsilä - 9L32C	10.5	C
571	SOPHIA I IMO 9546007	12,232	2011	140 m	YANMAR - 8N330-EN	10.5	C
572	HELENE JULIE IMO 9287314	13,988	2004	136 m	Wärtsilä - 9M32C	10.5	C
573	ADAMOON IMO 9521758	19,582	2011	150 m	STX - STX-MAN 5S50MC-C	10.6	C
574	ALUNA IMO 9590773	11,287	2011	134 m	GERMANY 9M 25 (MAK)	10.6	C
575	ELBEBORG IMO 9568249	12,004	2011	145 m	Wärtsilä - 9L32	10.6	C
576	SANDRA IMO 9549669	13,549	2009	120 m	YANMAR - 8N330-EN	10.6	C
577	LIDER HALIL IMO 9462275	10,264	2020	136 m	MAK/Caterpillar - 8 M 43 C	10.6	C
578	BEGONIA S IMO 9445540	12,119	2007	140 m	Shaanxi Diesel Engine Heavy Industry Co. Ltd. 8PC2-6L	10.7	C
579	EIRA IMO 9225299	19,625	2001	158 m	Mitsui - 6S46MC-C	10.7	C
580	CSL FLEXVIK IMO 9521825	18,003	2012	150 m	STX - STX-MAN 5S50MC-C	10.7	C
581	ELLA IMO 9894105	9,331	2021	141 m	YANMAR - 6EY22AW	10.7	C
582	VERACRUZ IMO 9521849	19,596	2012	150 m	STX - STX-MAN 5S50MC-C	10.7	C
583	VOLGABORG IMO 9631072	11,902	2013	143 m	MAK/Caterpillar - 9M25C	10.7	C
584	ICDAS-5 IMO 9829916	15,621	2019	148 m	Hyundai - 6H-32/40	10.8	C
585	JORIX IMO 9419802	8,191	2006	116 m	Daihatsu - 8DKM-28	10.8	C
586	KEMET STAR IMO 9154282	17,064	1999	149 m	5S46MC-C	10.8	C
587	ALPPILA IMO 9381706	20,499	2011	155 m	MAN - 6S50MC-C	10.8	C
588	WO LONG SONG IMO 9416783	27,354	2010	180 m	Mitsubishi - 6UEC50LSII	10.8	C
589	OBIRIX IMO 9504267	7,966	2008	116 m	MAK/Caterpillar - 9M252	10.8	C
590	BBC GEORGIA IMO 9357224	12,797	2008	138 m	MAK/Caterpillar - 6M43	10.9	C
591	TONAL IMO 9576129	7,852	2010	120 m	GUANGZHOU DIESEL ENGINE FACTORY 8320ZCD-8	10.9	C
592	EXEBORG IMO 9650482	11,950	2013	145 m	MAK/Caterpillar - 9L32	10.9	C
593	ENAS H IMO 9610822	10,034	2011	114 m	Akasaka - A45S	10.9	C
594	ADAVEGA IMO 9539339	12,427	2010	115 m	MAN - 6L35MC	10.9	C
595	LEDA IMO 9648178	6,171	2013	139 m	in Russia Dvigatel Revolyutsii	10.9	C
596	SAADET IMO 9522063	12,198	2009	140 m	YANMAR - 8N330-EN	11.0	C
597	HERMANA IMO 9545948	12,223	2010	140 m	YANMAR - 8N330-EN	11.1	C
598	OMAYA IMO 8408648	8,875	1984	115 m	Mitsubishi - 7UEC37H-II	11.1	C
599	DA XIANG IMO 9768552	28,577	2017	180 m	Hudong Heavy Machinery - 6RT-flex50	11.1	C
600	SEAHORSE IMO 9159000	8,474	1997	100 m	Hanshin - 6LH46L	11.1	C

Page 12 of 24 — 1,190 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.