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)

#1,841 of 2,098 container ships

CO₂ intensity

18.9 g CO₂/dwt·nm

vs segment average (10.39)

+82% 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 (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
1801	ELBSPRING IMO 9412529	880 TEU	2010	158 m	MAK/Caterpillar - MAK 9M43C	17.7	E
1802	ANINA IMO 9354351	1,008 TEU	2006	134 m	MAK/Caterpillar - 9M43C	17.7	E
1803	SVENDBORG IMO 9454230	1,085 TEU	2006	158 m	Wärtsilä - 6RT-flex50	17.8	E
1804	GRANDE FRANCIA IMO 9246592	1,321 TEU	2002	214 m	Sulzer - 8RTA62U-B	17.8	E
1805	CMA CGM NOUADHIBOU IMO 9376892	1,350 TEU	2007	161 m	Hudong Heavy Machinery - 8S50MC-C	17.8	E
1806	JONA SOPHIE IMO 9144718	910 TEU	1997	139 m	MAK/Caterpillar - 8 M 601 C	17.8	E
1807	MSC CAITLIN IMO 9169043	1,658 TEU	1998	216 m	MAN - 9L58/64	17.8	E
1808	HANNA IMO 9376048	868 TEU	2008	134 m	MAK/Caterpillar - 9M43C	17.8	E
1809	NORDIC ITALIA IMO 9474395	1,085 TEU	2012	158 m	Hitachi - 6RT-FLEX50B	17.9	E
1810	MED TEKIRDAG IMO 9265598	1,100 TEU	2003	148 m	MAN - 7 L58/64	17.9	E
1811	MED DENIZLI IMO 9106493	1,055 TEU	1996	151 m	MAN - 7 L58/64	17.9	E
1812	AMINA IMO 9448683	1,085 TEU	2011	158 m	Wärtsilä - 6RT-flex50	17.9	E
1813	CONTSHIP ECO IMO 9492751	700 TEU	2008	124 m	Shaanxi Diesel Engine Heavy Industry Co. Ltd. 8PC2-6	17.9	E
1814	WEC DE HOOGH IMO 9315018	868 TEU	2005	149 m	CATERPILLAR MOTOREN GMBH & CO. KG 9 M 43	18.0	E
1815	CONTSHIP BOX IMO 9449845	1,496 TEU	2009	180 m	MAN - 8 L 58/64	18.0	E
1816	NOVA IMO 9250098	966 TEU	2002	159 m	Wärtsilä - 7 L 64	18.0	E
1817	GRANDE BUENOS AIRES IMO 9253210	1,321 TEU	2004	214 m	Sulzer - 8RTA62U-B	18.0	E
1818	BAKKAFOSS IMO 9429194	880 TEU	2009	158 m	MAK/Caterpillar - 9M43C	18.1	E
1819	MSC WAVE F IMO 9232462	962 TEU	2001	143 m	Wärtsilä - 8 L 46 B	18.1	E
1820	EF ELENA IMO 9368730	1,338 TEU	2007	161 m	Hudong Heavy Machinery - 8S50MC-C	18.2	E
1821	MED CORLU IMO 9106479	1,055 TEU	1995	151 m	MAN - 7 L58/64	18.2	E
1822	CONTSHIP GIN IMO 9517434	1,350 TEU	2011	161 m	STX - 8S50ME-C7	18.2	E
1823	VERA RAMBOW IMO 9432220	1,425 TEU	2008	168 m	MAN - MAN B&W; 8L58/64 CD	18.2	E
1824	MSC ASLI IMO 9162631	1,733 TEU	2000	217 m	Wärtsilä - 16 ZAV 40 S	18.3	E
1825	SC MEMPHIS IMO 9324174	1,200 TEU	2005	154 m	MAN - 7S50MC-C	18.3	E
1826	WEC VERMEER IMO 9237371	868 TEU	2001	134 m	MAK/Caterpillar - 9M43	18.3	E
1827	SKYVIEW IMO 9358890	1,300 TEU	2007	161 m	STX - 6S60MC-C	18.3	E
1828	IDA RAMBOW IMO 9354478	1,008 TEU	2007	149 m	MAK/Caterpillar - 9M43C	18.3	E
1829	MARIELYST IMO 9448669	1,085 TEU	2010	158 m	Hitachi - 6RT-FLEX50B	18.4	E
1830	EVER PRIDE IMO 9249233	1,206 TEU	2003	182 m	Mitsubishi - 8RTA52U	18.4	E
1831	BARBARA P IMO 9144720	910 TEU	1997	139 m	MAK/Caterpillar - 8 M 601 C	18.5	E
1832	MAYFIELD IMO 9216353	1,216 TEU	2001	159 m	Hyundai - 8 RTA 62 U	18.5	E
1833	TRADEWIND IMO 9367944	907 TEU	2007	145 m	Hitachi - 6L50MC-MKV	18.5	E
1834	MERITO IMO 9167942	1,104 TEU	1998	150 m	Hudong Heavy Machinery - 6 L 60 MC	18.6	E
1835	MSC CHARLOTTE IMO 9330238	1,100 TEU	2007	148 m	MAN - 7 L58/64	18.7	E
1836	ATLANTIC SILVER IMO 9396622	1,350 TEU	2008	161 m	MAN - 8S50MC-C	18.7	E
1837	NORDIC PORTO IMO 9448671	1,085 TEU	2011	158 m	Hitachi - 6RT-FLEX50B	18.7	E
1838	MSC ABIGAIL F IMO 9330226	1,100 TEU	2006	148 m	MAN - 7 L58/64	18.8	E
1839	WEC FRANS HALS IMO 9326964	862 TEU	2005	134 m	MAK/Caterpillar - 9M43	18.8	E
1840	NAVI BALTIC IMO 9386718	1,425 TEU	2009	168 m	MAN - MAN B&W; 8L58/64 CD	18.8	E
1841	OEL INDIA IMO 9351816	620 TEU	2008	148 m	Wärtsilä - 8L46F	18.9	E
1842	ELBSUN IMO 9429261	880 TEU	2012	141 m	MAK/Caterpillar - 9M43C	18.9	E
1843	MSC VERA F IMO 9235610	1,100 TEU	2003	146 m	MAN - 7 L58/64	19.0	E
1844	KATHARINA SCHEPERS IMO 9584865	1,036 TEU	2012	152 m	MAN - 8L48/60B	19.1	E
1845	MSC SIGMA F IMO 9330240	1,100 TEU	2007	148 m	MAN - 7 L58/64	19.1	E
1846	MUNKSUND IMO 9429223	880 TEU	2012	158 m	MAK/Caterpillar - 9M43C	19.2	E
1847	BG ORANGE IMO 9964637	1,400 TEU	2024	170 m	Yuchai Marine Power Co. Ltd. 7S50ME-C9	19.2	E
1848	ELBWIND IMO 9483334	1,036 TEU	2012	152 m	MAN - 8L48/60B	19.2	E
1849	ALEXANDER L IMO 9431343	1,300 TEU	2011	161 m	MAN - 6S60MC-C	19.2	E
1850	ELBWAVE IMO 9504035	1,036 TEU	2011	152 m	MAN - 8L48/60B	19.3	E

Page 37 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.