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)

#573 of 2,098 container ships

CO₂ intensity

6.5 g CO₂/dwt·nm

vs segment average (10.39)

-37% 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
551	SPEED IMO 9475698	13,100 TEU	2012	366 m	MAN - 12K98ME-C	6.4	B
553	MSC CHLOE IMO 9720483	9,400 TEU	2016	300 m	MAN - 9S90ME-C10	6.4	B
552	MSC YASHI B IMO 9778090	11,000 TEU	2018	330 m	Hyundai - 8G95ME-C9	6.4	B
555	VALPARAISO EXPRESS IMO 9777589	10,818 TEU	2016	333 m	MAN - 7S90ME-C9	6.4	B
554	CMA CGM CENDRILLON IMO 9449819	8,500 TEU	2009	334 m	MAN - 12K98ME-C	6.4	B
556	MAERSK CAPE COAST IMO 9525314	4,500 TEU	2011	249 m	HHI - 6S80ME-C9	6.4	B
557	CARTAGENA EXPRESS IMO 9777618	10,818 TEU	2017	333 m	MAN - 7S90ME-C9	6.4	B
560	NYK ORION IMO 9312999	9,040 TEU	2008	336 m	Diesel United - 12RTflex96C-B	6.4	B
559	CAP SAN VINCENT IMO 9717228	10,600 TEU	2015	331 m	MAN - 7S90ME-C10	6.4	B
558	CMA CGM DALILA IMO 9450624	8,500 TEU	2011	334 m	MAN - 12K98ME-C	6.4	B
562	CMA CGM TITAN IMO 9399222	11,400 TEU	2011	363 m	MAN - 12K98ME-C	6.5	B
561	ARGUS IMO 9262716	6,492 TEU	2004	300 m	Diesel United - 12RTA96C	6.5	B
563	VIENNA EXPRESS IMO 9450416	8,600 TEU	2010	335 m	MAN - 12K98ME	6.5	B
564	MSC RAYSHMI IMO 9785457	12,200 TEU	2021	328 m	Doosan - 8G95ME-C9	6.5	B
565	APL BOSTON IMO 9597496	9,200 TEU	2013	328 m	Doosan - 10S90ME-C MK9.2 TIER 2	6.5	B
566	ANTHEA Y IMO 9710244	9,000 TEU	2015	300 m	MAN - 9G80ME-C9	6.5	B
569	SAN FERNANDO IMO 9698642	8,714 TEU	2015	300 m	MAN - 9S90ME-C9	6.5	B
568	EDITH MAERSK IMO 9321548	11,000 TEU	2004	398 m	Doosan - DOOSAN-SULZER 14RT-FLEX96C	6.5	B
567	MSC EVEREST VIII IMO 9286231	7,747 TEU	2004	334 m	MAN - 12K98MC	6.5	B
570	CMA CGM SINTRA IMO 9961362	2,000 TEU	2024	204 m	6S60ME-C10-GI	6.5	B
572	GUNVOR MAERSK IMO 9302891	6,600 TEU	2005	367 m	Sulzer - 12RT-flex96C	6.5	B
571	CSCL VENUS IMO 9467251	13,300 TEU	2011	366 m	MAN - 12K98MC-C	6.5	B
574	MSC VITTORIA IMO 9299551	8,034 TEU	2006	325 m	Sulzer - 12RTA96C	6.5	B
576	CHICAGO EXPRESS IMO 9295268	8,235 TEU	2006	336 m	Hyundai - 12 K 98 ME	6.5	B
573	CMA CGM TANYA IMO 9722704	9,894 TEU	2016	300 m	MAN - 8S90ME-C9	6.5	B
575	MSC DOMITILLE IMO 9720201	9,400 TEU	2015	300 m	MAN - 9S90ME-C10	6.5	B
577	COSCO JAPAN IMO 9448748	8,500 TEU	2010	334 m	MAN - 11K98ME	6.5	B
578	MSC VILDA X IMO 9146479	7,226 TEU	1998	347 m	Hitachi - 12K90MC	6.5	B
579	ONE HANOI IMO 9588093	8,974 TEU	2013	335 m	Kawasaki - 12K98MEMKVI	6.5	B
580	CMA CGM RHONE IMO 9674543	9,365 TEU	2015	300 m	Hyundai - 9S90ME-C9	6.5	B
582	SANTA INES IMO 9444845	7,114 TEU	2012	300 m	Doosan - 8RT FLEX 96C	6.5	B
581	ZIM CONDOR IMO 9960552	5,300 TEU	2024	238 m	6G80ME-C10-HPSCR	6.5	B
584	MSC ESTHI IMO 9304411	9,200 TEU	2006	337 m	Doosan - 12K98MC-C	6.5	B
583	TUBUL IMO 9447873	8,000 TEU	2011	300 m	Doosan - 7K98ME	6.5	B
588	DALIAN EXPRESS IMO 9229829	7,506 TEU	2001	321 m	MAN - 12K98MC	6.5	B
587	PRAGUE EXPRESS IMO 9450399	8,600 TEU	2010	336 m	MAN - 10K98ME	6.5	B
586	MSC CANDICE IMO 9339284	9,200 TEU	2007	337 m	MAN - 12K98MC-C	6.5	B
585	PANDA 006 IMO 9677026	6,900 TEU	2013	270 m	HHI - 8RT-FLEX82T	6.5	B
589	TORRENTE IMO 9447914	8,000 TEU	2011	300 m	Doosan - 7K98ME	6.6	B
591	MSC ELAINE IMO 9393321	8,562 TEU	2009	340 m	Hyundai - 14RT-flex96C	6.6	B
590	MAERSK STADELHORN IMO 9726671	9,962 TEU	2015	300 m	Hyundai - 9S90ME-C9	6.6	B
592	MSC SHREYA B IMO 9778105	11,000 TEU	2017	330 m	Hyundai - 8G95ME-C9	6.6	B
593	MSC ALEXA IMO 9129873	3,500 TEU	1996	244 m	Sulzer - 7RTA84C	6.6	B
596	EUGEN MAERSK IMO 9321550	11,000 TEU	2004	399 m	Wärtsilä - 14RT-flex96C	6.6	B
595	MAERSK TUKANG IMO 9334686	8,100 TEU	2008	322 m	Wärtsilä - 12RT-flex96C	6.6	B
594	YANTIAN EXPRESS IMO 9229831	7,179 TEU	2002	321 m	MAN - 12K98MC	6.6	B
598	MSC MAEVA IMO 9289128	8,034 TEU	2005	325 m	Sulzer - 12RTA96C	6.6	B
597	ELLY MAERSK IMO 9321536	11,000 TEU	2007	399 m	Doosan - DOOSAN-SULZER 14RT-FLEX96C	6.6	B
600	NINGBO EXPRESS IMO 9229843	7,179 TEU	2002	321 m	Hyundai - 12 K98MC	6.6	B
599	MSC NOA IMO 9398228	6,500 TEU	2009	304 m	MAN - 10K98MC-C	6.6	B

Page 12 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.