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)

#476 of 2,098 container ships

CO₂ intensity

6.0 g CO₂/dwt·nm

vs segment average (10.39)

-42% 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
451	OOCL FRANCE IMO 9622617	13,200 TEU	2011	366 m	Hyundai - 12S90ME-C9	5.9	B
453	MSC BEIJING IMO 9289099	8,034 TEU	2005	325 m	Sulzer - 12RTA96C	5.9	B
452	CMA CGM JULES VERNE IMO 9454450	16,022 TEU	2013	396 m	Wärtsilä - 14RT-flex96C	5.9	B
457	MSC GIULIA IMO 9770737	9,400 TEU	2017	300 m	Doosan - 9S90ME-C10	5.9	B
456	TOLEDO TRIUMPH IMO 9737486	13,870 TEU	2017	366 m	STX - 11S90ME-C9	5.9	B
458	CAP SAN ARTEMISSIO IMO 9633939	9,600 TEU	2014	333 m	MAN - 7S90ME-C9	5.9	B
455	CMA CGM ZHENG HE IMO 9706906	17,859 TEU	2015	399 m	CSSC - 11S90ME-C9	5.9	B
454	LUDWIGSHAFEN EXPRESS IMO 9613018	13,000 TEU	2014	367 m	Hyundai - 11K98ME	5.9	B
459	MSC ARIANE IMO 9484443	13,050 TEU	2012	366 m	Doosan - 12K98MC-C	5.9	B
460	CAP SAN LAZARO IMO 9717216	10,600 TEU	2015	331 m	MAN - 7S90ME-C10	5.9	B
461	MSC ALTAIR IMO 9465277	13,100 TEU	2012	366 m	MAN - 12K98ME7	5.9	B
462	MSC CAROLE IMO 9785445	12,200 TEU	2021	328 m	Doosan - 8G95ME-C9	5.9	B
463	CSCL PACIFIC OCEAN IMO 9695133	19,000 TEU	2014	400 m	Hyundai - 12S90ME-C9	5.9	B
466	COSCO ENGLAND IMO 9516428	13,360 TEU	2008	366 m	MAN - 12K98ME7	5.9	B
465	NYK VEGA IMO 9312781	9,012 TEU	2006	338 m	Hyundai - 12 K 98 ME	5.9	B
464	COSCO DENMARK IMO 9516478	13,360 TEU	2014	366 m	MAN - 12K98ME7	5.9	B
467	MSC DANIELA IMO 9399002	10,000 TEU	2008	366 m	MAN - 12K98MC-C	6.0	B
468	MSC SIYA B IMO 9793947	11,800 TEU	2018	330 m	Doosan - 8X92	6.0	B
469	MSC RAPALLO IMO 9484455	13,050 TEU	2011	366 m	Doosan - 12K98MC-C	6.0	B
471	MSC BERYL IMO 9467392	12,400 TEU	2010	366 m	MAN - 12K98MC-C	6.0	B
470	CAP SAN JUAN IMO 9717204	10,600 TEU	2015	331 m	MAN - 7S90ME-C10	6.0	B
472	ELEONORA MAERSK IMO 9321500	11,000 TEU	2004	399 m	Doosan - DOOSAN-SULZER 14RT-FLEX96C	6.0	B
475	CCNI ANGOL IMO 9683867	9,000 TEU	2015	300 m	MAN - 9G80ME-C9	6.0	B
474	MSC BENEDETTA XIII IMO 9465253	13,100 TEU	2011	366 m	Hyundai - HHI MAN B&W; 12K98ME7	6.0	B
473	TOLTEN IMO 9612870	8,000 TEU	2012	300 m	Doosan - 7K98ME-MK7	6.0	B
476	MSC CLORINDA IMO 9484429	14,000 TEU	2012	366 m	Doosan - 12K98MC-C	6.0	B
477	MAERSK CUNENE IMO 9561485	4,496 TEU	2011	249 m	HHI - 6S80ME-C9	6.0	B
478	NAGOYA EXPRESS IMO 9450428	8,600 TEU	2010	335 m	Hyundai - 12 K 98 ME	6.0	B
480	HAIPHONG EXPRESS IMO 9778129	10,100 TEU	2018	336 m	CSSC - 10S90ME-C9	6.0	B
479	LAEM CHABANG EXPRESS IMO 9768007	10,100 TEU	2018	336 m	CSSC - 10S90ME-C9	6.0	B
481	EVER TOP IMO 9665619	13,800 TEU	2014	368 m	MAN - 11S90ME-C9	6.0	B
483	HYUNDAI FAITH IMO 9347554	8,600 TEU	2008	340 m	Wärtsilä - 14RT-flex96C	6.0	B
482	EVER FAME IMO 9850800	11,000 TEU	2021	334 m	MAN - 9S90ME-C10	6.0	B
485	MSC MADELEINE IMO 9305702	9,100 TEU	2006	348 m	MAN - 12K98ME	6.0	B
484	CMA CGM VOLGA IMO 9705081	10,622 TEU	2015	300 m	Hyundai - 9S90ME-C9	6.0	B
486	MSC ADONIS IMO 9706310	9,288 TEU	2015	300 m	Wärtsilä - 9X82	6.0	B
489	ULSAN EXPRESS IMO 9613020	13,000 TEU	2014	367 m	MAN - 11K98ME	6.0	B
488	MSC CRISTINA IMO 9465241	13,100 TEU	2011	366 m	MAN - 12K98ME7	6.0	B
487	CAPE AKRITAS IMO 9706190	11,000 TEU	2016	330 m	Hyundai - 8G95ME-C9	6.0	B
490	MAERSK FLORENCE IMO 9969053	76,513	2021	255 m	MAN-B&W 6G80ME-C10	6.1	B
491	MSC MAGNUM VII IMO 9252541	6,750 TEU	2003	300 m	Doosan - 10K98MC-C	6.1	B
492	KLEVEN IMO 9085546	6,418 TEU	1996	318 m	MAN - 12 K 90 MC	6.1	B
500	ONE RESILIENCE IMO 9952751	7,000 TEU	2024	272 m	Hanwha Engine Co Ltd - South Korea 7G80ME-C10-HPSCR	6.1	B
499	ONE READINESS IMO 9952684	7,000 TEU	2023	272 m	HSD Engine Co Ltd - South Korea 7G80ME-C10-HPSCR	6.1	B
498	ZIM JADE IMO 9968059	7,000 TEU	2024	272 m	7G80ME-C10-GI-ERGTC	6.1	B
497	CAP SAN SOUNIO IMO 9633953	9,600 TEU	2014	333 m	MAN - 7S90ME-C9	6.1	B
496	EMMA MAERSK IMO 9321483	11,000 TEU	2004	398 m	Wärtsilä - 14RT-flex96C	6.1	B
495	TENO IMO 9447859	8,000 TEU	2011	300 m	MAN - 7K98ME7	6.1	B
494	MUNDRA EXPRESS IMO 9408865	9,954 TEU	2011	350 m	Wärtsilä - 12RT-flex96C	6.1	B
493	CAP SAN MALEAS IMO 9633941	9,600 TEU	2014	333 m	MAN - 7S90ME-C9	6.1	B

Page 10 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.