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)

#661 of 1,190 general cargos

CO₂ intensity

11.9 g CO₂/dwt·nm

vs segment average (10.91)

+9% 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
651	SELVAAGSUND IMO 9956862	8,534	2023	120 m	MaK 8M25E	11.8	C
652	IBRAHIM KONAN IMO 9306328	8,107	2006	108 m	STX - 7 S 26 MC-MK6	11.8	C
653	VANCOUVERBORG IMO 9213741	9,829	2001	132 m	Wärtsilä - 6R38	11.8	C
654	LADY SEMA IMO 9233624	16,190	2001	137 m	Akasaka - 6UEC37LSII	11.8	C
655	ARUBABORG IMO 9466295	17,407	2010	143 m	Wärtsilä - 8 L 46 B	11.8	C
656	DIJKSGRACHT IMO 9420772	17,381	2008	157 m	Wärtsilä - 8L46	11.9	C
657	SOPTERIX IMO 9645839	7,540	2012	108 m	Shaanxi Diesel Engine Heavy Industry Co. Ltd. 8DKM-28	11.9	C
658	ORION 7 IMO 9611101	6,041	2011	137 m	SKL - 8NVD48A-2U	11.9	C
659	ARKLOW ARROW IMO 9851971	8,543	2021	120 m	MAK/Caterpillar - 6M25C	11.9	C
660	ARKLOW ARCHER IMO 9851969	8,543	2020	120 m	MAK/Caterpillar - 6M25C	11.9	C
661	AZOV CONCEPT IMO 9345726	10,223	2006	142 m	MAK/Caterpillar - 8M20	11.9	C
662	EDENBORG IMO 9463449	11,217	2010	138 m	Wärtsilä - 9L32	11.9	C
663	NOORDDIJK IMO 9591820	10,953	2011	122 m	Hyundai - 8H32/40P	11.9	C
664	ERIEBORG IMO 9463437	11,217	2009	138 m	Wärtsilä - 9L32	12.0	C
665	AMERICABORG IMO 9365659	17,356	2007	143 m	Wärtsilä - 8 L 46 B	12.0	C
666	ARKLOW BANK IMO 9638769	8,661	2014	119 m	MAK/Caterpillar - 8M25C	12.0	C
667	MITIQ IMO 9081306	12,760	1995	136 m	Wärtsilä - 6R46	12.0	C
668	LONGWOOD IMO 9504138	11,023	2011	132 m	MAK/Caterpillar - 8M32	12.0	C
669	LAUNKALNE IMO 9504114	11,048	2010	132 m	MAK/Caterpillar - 8M32	12.0	C
670	AZOV FORWARD IMO 9736896	12,630	2019	145 m	MAN - 6L28/32A	12.1	C
671	STARVIP IMO 9326495	18,500	2007	147 m	MAK/Caterpillar - 6S50MC-C	12.1	C
672	FWN SUN IMO 9721669	10,557	2016	122 m	MAK/Caterpillar - 6M32C	12.1	C
673	HARTURA IMO 9546447	12,223	2009	140 m	YANMAR - 8N330-EN	12.1	C
674	VIVIAN IMO 9620358	7,636	2011	116 m	Guangzhou Diesel Engine Factory Co Ltd - China 8320ZCD-8	12.1	C
675	ARKLOW ABBEY IMO 9851933	8,543	2019	120 m	MAK/Caterpillar - 6M25C	12.1	C
676	ATLANTA IMO 9513373	12,223	2009	140 m	YANMAR - 8N330-EN	12.1	C
677	YEBA IMO 9045728	8,026	2004	125 m	Wärtsilä - 6 R 32 LNE	12.1	C
678	AL LUQTA IMO 9294953	10,584	2004	146 m	MAK/Caterpillar - MAK 9M32C	12.1	C
679	STEVIE IMO 9488035	12,767	2010	139 m	MAK/Caterpillar - 6 M 43 C	12.2	C
680	SIDER COLOMBIA IMO 9656541	12,700	2013	139 m	DAHAITSU DIESEL MFG. CO.,LTD 6DKM-36	12.2	C
681	ARKLOW ACCORD IMO 9851945	8,543	2020	120 m	MAK/Caterpillar - 6M25C	12.2	C
682	ATLANTICBORG IMO 9466350	17,294	2012	143 m	Wärtsilä - 8 L 46 B	12.2	C
683	FULMAR S IMO 9370082	13,450	2007	138 m	MAN - 7 S 35 MC	12.2	C
684	EEMSBORG IMO 9423748	11,287	2009	138 m	Wärtsilä - 9L32	12.2	C
685	SAIMAAGRACHT IMO 9288069	23,661	2005	185 m	Wärtsilä - 6L64	12.3	C
686	VICTORIABORG IMO 9234276	9,861	2001	132 m	Wärtsilä - 6R38	12.3	C
687	ARKLOW ARTIST IMO 9851983	8,543	2021	120 m	MAK/Caterpillar - 6M25C	12.3	C
688	TRANSOSPREY IMO 9213090	20,396	2003	174 m	MAN - 7S42MC	12.3	C
689	CHELSEA-2 IMO 9314442	5,457	2005	140 m	RUSSIA 6CHRN 36/45	12.3	C
690	CELESTIA IMO 9258997	10,325	2002	143 m	MAK/Caterpillar - 9M32	12.3	C
691	CELIK 1 IMO 9430791	7,702	2007	121 m	Shaanxi Diesel Engine Heavy Industry Co. Ltd. 6PC2-6	12.3	C
692	ESL AUSTRALIA IMO 9365661	17,356	2007	143 m	Wärtsilä - 8 L 46 B	12.3	C
693	WHITE STAR IMO 9381938	9,223	2007	130 m	SHAANXI DIESEL ENGINE HEAVY INDUSTRY CO., LTD. 6 PC2 - 5L	12.3	C
694	AQUIS PERLA IMO 9161869	10,132	1997	113 m	MAKITA - 6L35MC	12.4	C
695	AZOV CONCORD IMO 9387748	10,173	2008	141 m	MAK/Caterpillar - 8M20	12.4	C
696	VECTIS PROGRESS IMO 9626144	11,051	2012	124 m	MAK/Caterpillar - 6M32C	12.4	C
697	FIONA IMO 9381419	8,109	2009	108 m	MAN - 7S26MC	12.4	C
698	DENIZ AKAY IMO 9349447	10,501	2010	107 m	MAK/Caterpillar - 8M32C	12.4	C
699	FITBURG IMO 9250397	9,900	2002	132 m	Wärtsilä - 6 L 38 A	12.4	C
700	NORMA IMO 9306419	8,100	2006	108 m	MAN - 7S26MC	12.4	C

Page 14 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.