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)

#1,129 of 2,098 container ships

CO₂ intensity

8.9 g CO₂/dwt·nm

vs segment average (10.39)

-15% 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
1101	GEORGE WASHINGTON BRIDGE IMO 9302073	5,642 TEU	2006	285 m	MAN - 11K98MC	8.8	C
1102	RIO GRANDE EXPRESS IMO 9301823	4,253 TEU	2003	260 m	MAN - 8K90MC-C	8.8	C
1103	CAPE MOSS IMO 9445916	2,758 TEU	2011	213 m	Hudong Heavy Machinery - 8RT-FLEX68D	8.8	C
1104	CHACABUCO IMO 9295957	5,527 TEU	2006	276 m	Sulzer - 10RT-flex96C	8.8	C
1105	MAERSK OHIO IMO 9298698	4,300 TEU	2006	292 m	Hyundai - 10K90MC-C	8.8	C
1106	MSC SHANELLE V IMO 9292175	4,738 TEU	2004	294 m	Hyundai - 8K98MC-C	8.8	C
1107	MSC BERN V IMO 9362449	4,300 TEU	2008	261 m	MAN - 8K90MC-C	8.8	C
1108	PANAMA EXPRESS IMO 9641223	6,900 TEU	2013	270 m	Hyundai - 8S80ME-C9.2	8.8	C
1109	CAPE SABLE IMO 9950131	2,700 TEU	2024	189 m	7S60ME-C10-HPSCR	8.8	C
1110	CMA CGM CHIWAN IMO 9224312	4,253 TEU	2001	260 m	8K90MC-C	8.8	C
1111	MSC HERMES IMO 9350317	2,490 TEU	2006	212 m	MAN - 7S70MC	8.8	C
1112	PEPI STAR IMO 9971020	1,800 TEU	2024	172 m	Hyundai Heavy Industries Co Ltd - South Korea 6S60ME-C10-HPSCR	8.8	C
1113	SEASPAN SANTOS IMO 9301835	4,253 TEU	2006	260 m	MAN - 8K90MC-C	8.8	C
1114	MSC CORUNA IMO 9480215	5,550 TEU	2011	270 m	Doosan - 7K98MC-C	8.8	C
1115	MSC HOUSTON V IMO 9463281	4,432 TEU	2010	267 m	Wärtsilä - 10RT-flex82C	8.8	C
1116	MSC CARPATHIA III IMO 9253038	2,826 TEU	2003	222 m	Hyundai - 7K80MC-C	8.8	C
1117	LICA MAERSK IMO 9190779	3,700 TEU	2001	266 m	10K90MC	8.8	C
1118	NYK NEBULA IMO 9337640	4,888 TEU	2007	294 m	MAN - 9K98MC-C	8.8	C
1119	CONTI CORTESIA IMO 9293753	8,084 TEU	2005	334 m	Sulzer - 12RTA96C	8.8	C
1120	ZIM SHENZHEN IMO 9461491	8,600 TEU	2011	335 m	Wärtsilä - 12RT-flex96C	8.8	C
1121	LOUIS MAERSK IMO 9190731	4,045 TEU	2001	266 m	Doosan - 10K90MC	8.8	C
1122	SINE A IMO 9343089	2,824 TEU	2008	222 m	MAN - 7K80MC-C	8.8	C
1123	HOLSATIA IMO 9233856	4,253 TEU	2003	260 m	8K90MC-C	8.8	C
1124	MSC NICOLE X IMO 9214898	7,226 TEU	1998	347 m	MAN - 12 K 90 MC	8.8	C
1125	MOL EXPERIENCE IMO 9333838	4,803 TEU	2007	294 m	MAN - 9K98MC-C	8.8	C
1126	MSC GIANNA III IMO 9152856	2,517 TEU	1998	202 m	Hyundai - 8 K 80 MC-C	8.8	C
1127	JAKARTA EXPRESS IMO 9539688	4,672 TEU	2012	260 m	CSSC - 8K80ME-C	8.8	C
1128	PANDA 001 IMO 9290787	5,527 TEU	2005	276 m	Sulzer - 10RTA96C	8.9	C
1129	SEADREAM IMO 9632832	5,023 TEU	2014	255 m	MAN - 6G80ME-C9	8.9	C
1130	MSC CARMEN IMO 9349813	4,860 TEU	2008	275 m	MAN - 7K98MC-C	8.9	C
1131	MSC FELIXSTOWE IMO 9290402	5,042 TEU	2005	294 m	Sulzer - 8RTA96C	8.9	C
1132	MSC SENA IMO 9116369	2,517 TEU	1996	202 m	Hyundai - 8 K 80 MC-C	8.9	C
1133	W KYRENIA IMO 9211494	6,802 TEU	2001	300 m	Sulzer - 12RTA96C	8.9	C
1134	ZIM ATLANTIC IMO 9440801	4,300 TEU	2009	262 m	Hyundai - 8RTA82C	8.9	C
1135	MSC MARITINA V IMO 9294408	4,035 TEU	2005	266 m	Sulzer - 8RT-flex96C	8.9	C
1136	QUEBEC EXPRESS IMO 9294836	5,512 TEU	2006	268 m	Sulzer - 10RTA96C	8.9	C
1137	CMA CGM EIFFEL IMO 9248112	4,367 TEU	2002	282 m	MAN - 8K98MC-C	8.9	C
1138	NYK METEOR IMO 9337638	4,888 TEU	2007	294 m	MAN - 9K98MC-C	8.9	C
1139	MAERSK GARONNE IMO 9235579	4,318 TEU	2003	292 m	Hyundai - 10K90MC-C-MKV	8.9	C
1140	MSC ROMA IMO 9304447	9,200 TEU	2006	337 m	MAN - 12K98MC-C	8.9	C
1141	JOLLY ROSA IMO 9484534	4,400 TEU	2010	260 m	Doosan - 8K90MC-C	8.9	C
1142	MAERSK TENNESSEE IMO 9314210	4,154 TEU	2007	292 m	Wärtsilä - 8RT-flex96C	8.9	C
1143	XIN DA LIAN IMO 9234331	5,668 TEU	2003	280 m	MAN - 12K90MC-C	9.0	C
1144	YM FOUNTAIN IMO 9278090	5,551 TEU	2002	275 m	Hyundai - HYUNDAI SULZER 10RTA96C	9.0	C
1145	DUBAI EXPRESS IMO 9440825	4,300 TEU	2009	262 m	Wärtsilä - 8RTA82C	9.0	C
1146	ZIM VIRGINIA IMO 9231808	4,800 TEU	2002	294 m	Hyundai - HYUNDAI - MAN B&W 9K90MC-C	9.0	C
1147	CHIQUITA CENTURY IMO 9339595	2,500 TEU	2008	209 m	Hudong Heavy Machinery - 6 K80ME-C	9.0	C
1148	SEATTLE C IMO 9360910	4,253 TEU	2007	260 m	Doosan - 8K90MC-C	9.0	C
1149	MAERSK JABAL IMO 9343077	2,824 TEU	2008	222 m	Hyundai - 7K80MC-C	9.0	C
1150	MAERSK GAIRLOCH IMO 9235567	4,300 TEU	2003	292 m	Hyundai - 10K90MC-C MK5	9.0	C

Page 23 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.