Most Emission-Efficient Container Ships

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)

#943 of 2,098 container ships

CO₂ intensity

7.9 g CO₂/dwt·nm

vs segment average (10.39)

-24% 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 (TEU)

All sizes < 3,000 TEU 3k – 8k TEU 8k – 14k TEU > 14,000 TEU

Year

2025 2024

2,141

vessels ranked

2.25

greenest (g CO₂/t·nm)

8.58

segment median

#	Vessel	Size (TEU)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
901	MSC LAURA IMO 9225665	6,750 TEU	2002	300 m	HSD ENGINE CO., LTD. 10 K 98 MC-C	7.7	C
902	GSL CHATEAU D'IF IMO 9335202	5,089 TEU	2007	294 m	MAN - 9K90MC-C	7.7	C
904	NYK REMUS IMO 9416965	4,888 TEU	2009	294 m	MAN - 9K98ME-C	7.7	C
903	ZIM PELICAN IMO 9960526	5,300 TEU	2024	238 m	MAN-B&W 6G80ME-C10	7.7	C
908	MSC NAHARA IMO 9955789	1,800 TEU	2024	210 m	Dalian Marine Diesel Co Ltd - China 6G70ME-C10-coEGR	7.7	C
907	CMA CGM ESTELLE IMO 9729116	9,400 TEU	2018	300 m	CSSC - 9S90ME-C9	7.7	C
906	CMA CGM ROSSINI IMO 9280639	5,782 TEU	2004	277 m	Hyundai - 10 K 98 MC-C	7.7	C
905	CMA CGM TIVOLI IMO 9961312	2,000 TEU	2024	204 m	Hyundai Heavy Industries Co Ltd - South Korea 6S60ME-C10-GI	7.7	C
909	MAERSK PITTSBURGH IMO 9342176	6,200 TEU	2008	300 m	Doosan - 10RT-flex96C	7.7	C
911	MAERSK KARACHI IMO 9162215	6,690 TEU	1998	300 m	ISHIKAWAJIMA - 12RTA96C	7.8	C
910	CMA CGM CONGO IMO 9679892	9,220 TEU	2015	300 m	MAN - 8S90ME-C9	7.8	C
912	EXPRESS BRAZIL IMO 9443023	3,459 TEU	2010	222 m	Hyundai - 7RT-FLEX82C	7.8	C
913	PANDA 007 IMO 9280598	5,762 TEU	2004	277 m	Hyundai - 10 K 98 MC-C	7.8	C
914	CONTI COURAGE IMO 9293789	8,084 TEU	2005	334 m	Doosan - 12 RTA 96 C-B	7.8	C
915	MSC RUBY IMO 9502960	13,092 TEU	2013	366 m	Wärtsilä - 12RT-flex96C	7.8	C
917	CMA CGM MOZART IMO 9280615	5,762 TEU	2004	277 m	Hyundai - 10 K 98 MC-C	7.8	C
916	MSC DAISY IMO 9295165	4,900 TEU	2005	294 m	Doosan - 9 K90MC-C	7.8	C
918	ONE HANNOVER IMO 9302138	8,212 TEU	2006	336 m	MAN - 12K98ME	7.8	C
919	MSC JOY IMO 9039250	1,933 TEU	1992	202 m	Sulzer - 6RTA76	7.8	C
920	CMA CGM MERMAID IMO 9961283	2,000 TEU	2024	204 m	Hyundai Heavy Industries Co Ltd - South Korea 6S60ME-C10-GI	7.8	C
921	MSC DORINE IMO 9301328	5,060 TEU	2005	294 m	Hyundai - 9 K 90 MC-C	7.8	C
922	ONE MARVEL IMO 9475612	6,724 TEU	2010	302 m	Mitsubishi - 10RT-flex96C	7.8	C
924	MSC KRITTIKA IMO 9051507	2,394 TEU	1994	202 m	ASTILLEROS - 7 S 70 MC	7.8	C
923	MSC ATHOS IMO 9618317	8,800 TEU	2013	300 m	MAN - 9S90ME-C8	7.8	C
925	CMA CGM CARL ANTOINE IMO 9729087	9,400 TEU	2017	300 m	CSSC - 9S90ME-C9	7.8	C
927	ZIM CHINA IMO 9389382	4,275 TEU	2008	261 m	Wärtsilä - 7RT-FLEX96C	7.8	C
926	MAERSK LOTA IMO 9526954	8,700 TEU	2012	300 m	Doosan - 9S90ME-C	7.8	C
929	MAERSK GATESHEAD IMO 9235543	4,318 TEU	2002	292 m	Hyundai - 10K90MC-C MK5	7.8	C
928	CMA CGM ALTAMIRA IMO 9961350	2,000 TEU	2024	204 m	6S60ME-C10-GI	7.8	C
931	NILEDUTCH LION IMO 9337456	8,241 TEU	2008	333 m	Mitsui - MITSUI- MAN B&W 12K98MC	7.8	C
930	FOS EXPRESS IMO 9348699	5,100 TEU	2008	294 m	MAN - 9K90MC-C	7.8	C
932	MSC FABIENNE IMO 9279965	4,862 TEU	2004	294 m	Hyundai - 9 K 90 MC-C	7.9	C
933	HYUNDAI SHANGHAI IMO 9305647	6,800 TEU	2006	304 m	MAN - 12K98MC-C	7.9	C
934	CMA CGM JACQUES JOSEPH IMO 9729104	9,400 TEU	2017	300 m	CSSC - 9S90ME-C9	7.9	C
935	ATLANTICA POWER IMO 9467055	4,600 TEU	2010	264 m	MAN - 8K90MC-C	7.9	C
937	MSC ATHENS IMO 9618305	8,800 TEU	2013	300 m	Hyundai - 9S90ME-C8.2	7.9	C
936	CMA CGM PUERTO ANTIOQUIA IMO 9275050	2,556 TEU	2004	210 m	Hyundai - 7 RTA 72 U-B	7.9	C
939	ONE HARBOUR IMO 9302152	8,212 TEU	2007	336 m	MAN - 12K98ME	7.9	C
938	SANTA CRUZ IMO 9444742	7,090 TEU	2011	300 m	Doosan - 8RT FLEX 96C	7.9	C
940	MSC ARCHIMIDIS IMO 9315379	7,943 TEU	2006	318 m	Sulzer - 12RT-flex96C	7.9	C
941	MSC JERSEY IMO 9622007	4,800 TEU	2014	250 m	MAN - 6S80ME-C9	7.9	C
942	MAERSK STRALSUND IMO 9303522	8,400 TEU	2005	332 m	MAN - 12K98ME-C	7.9	C
944	VILNIA MAERSK IMO 9778533	3,700 TEU	2019	200 m	MAN - 6G60ME-C9	7.9	C
943	CMA CGM CHOPIN IMO 9280603	5,762 TEU	2004	277 m	Hyundai - 10 K 98 MC-C	7.9	C
949	NYK RIGEL IMO 9416977	4,888 TEU	2009	294 m	MAN - 9K98ME-C	7.9	C
948	ONE HUMBER IMO 9302140	8,212 TEU	2006	336 m	MAN - 12K98ME	7.9	C
947	MSC ROSARIA IMO 9320453	4,860 TEU	2007	275 m	MAN - 7K98MC-C	7.9	C
946	SEASPAN OCEANIA IMO 9286009	8,468 TEU	2004	334 m	MAN - 12K98MC-C	7.9	C
945	HYUNDAI PRESTIGE IMO 9625528	5,023 TEU	2013	255 m	Wärtsilä - 6RT-flex82T	7.9	C
950	MSC MARTA IMO 9295385	5,599 TEU	2005	275 m	Hyundai - 10 K 98 MC-C	7.9	C

Page 19 of 42 — 2,098 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.