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)

#1,644 of 2,098 container ships

CO₂ intensity

13.6 g CO₂/dwt·nm

vs segment average (10.39)

+31% 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
1601	AS CLAUDIA IMO 9330549	2,824 TEU	2007	222 m	MAN - 7K80MC-C	13.1	D
1602	PANDA 003 IMO 9968891	1,400 TEU	2024	170 m	MAN-B&W 7S50ME-C9	13.1	D
1603	FLEUR N IMO 9509138	2,758 TEU	2012	213 m	Hudong Heavy Machinery - 8RT-FLEX68D	13.2	D
1604	MSC BREMERHAVEN V IMO 9313967	4,196 TEU	2007	294 m	Wärtsilä - 12RT-flex96C	13.2	D
1605	MSC AUBE F IMO 9360283	1,060 TEU	2005	147 m	Mitsui - 7 S 50 MC	13.2	D
1606	JEAN PIERRE A IMO 9379351	1,604 TEU	2007	184 m	MAN - 8S50MC-C	13.2	D
1607	RAQUEL S IMO 9515591	1,577 TEU	2009	172 m	Mitsui - 7S60MC-C	13.2	D
1608	MSC TIANA F IMO 9108398	1,129 TEU	1996	159 m	H. CEGIELSKI-POZNAN S.A. 7 S 50 MC	13.2	D
1609	IRENES REMEDY IMO 9315850	2,826 TEU	2005	222 m	Hyundai - 7K80MC-C	13.2	D
1610	HARIS IMO 9670119	2,190 TEU	2015	185 m	MAN - 6S60ME-C8	13.2	D
1611	CAUCEDO EXPRESS IMO 9434931	2,550 TEU	2009	210 m	Hyundai - 7 RTA 72 U-B	13.2	D
1612	EF EMMA IMO 9357808	1,706 TEU	2008	182 m	MAN - 9L58/64 CD	13.2	D
1613	MSC REET II IMO 9236224	1,400 TEU	2002	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	13.2	D
1614	AS PENELOPE IMO 9294537	2,572 TEU	2005	210 m	STX - 8 S 70 MC-C	13.2	D
1615	TANJA IMO 9431692	4,250 TEU	2009	261 m	MAN - 8K90MC-C	13.2	D
1616	EMPIRE IMO 9387425	1,400 TEU	2009	170 m	MAN - 8S50MC-C	13.3	D
1617	CMA CGM FORT SAINT CHARLES IMO 9809849	3,300 TEU	2019	219 m	Wärtsilä - 7X72	13.3	D
1618	MARSA PRIDE IMO 9301445	2,556 TEU	2005	210 m	Hyundai - 7 RTA 72 U-B	13.3	D
1619	ELBINSEL IMO 9977426	20,150	2024	170 m	MAN-B&W 7S50ME-C9	13.3	D
1620	SONGA PUMA IMO 9399789	2,750 TEU	2009	225 m	DALIAN MARINE - 7 L70MC-C	13.3	D
1621	KAAN KALKAVAN IMO 9365879	1,849 TEU	2012	183 m	STX - MAN 7S60MC-C	13.3	D
1622	CMA CGM AQABA IMO 9334820	1,740 TEU	2007	176 m	MAN - 7S60MC-C	13.3	D
1623	CMA CGM MAPUTO IMO 9491628	1,740 TEU	2011	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	13.4	D
1624	MED CESME IMO 9256365	1,740 TEU	2003	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	13.4	D
1625	MUSTAFA DAYI IMO 9365855	1,849 TEU	2011	183 m	MAN - 8S50MC-C	13.4	D
1626	CMA CGM FUZHOU IMO 9596313	1,740 TEU	2014	177 m	MAN - 7S60MC-C	13.4	D
1627	MSC BELLE IMO 9203904	1,098 TEU	1998	149 m	Hudong Heavy Machinery - 8RTA48T	13.4	D
1628	VEGA COLIGNY IMO 9939876	1,868 TEU	2023	172 m	Hudong Heavy Machinery - 6RT-flex58T-E	13.4	D
1629	MSC ALBA F IMO 9499010	1,022 TEU	2008	148 m	Yichang - 6S50MC-C	13.4	D
1630	MARLA BULL IMO 9932945	1,900 TEU	2022	172 m	—	13.4	D
1631	BG BLUE IMO 9964625	1,400 TEU	2024	170 m	Yuchai Marine Power Co. Ltd. 7S50ME-C9	13.4	D
1632	LUEBECK IMO 9216092	1,040 TEU	2001	154 m	Hudong Heavy Machinery - 7 L 60 MC	13.4	D
1633	CAPE FRANKLIN IMO 9359301	1,440 TEU	2006	170 m	MAN - 8S50MC-C	13.5	D
1634	RAMHAN IMO 9668960	3,100 TEU	2015	239 m	MAN - 7L70ME-C8	13.5	D
1635	GRANDE COTONOU IMO 9672105	1,800 TEU	2015	236 m	Hyundai Heavy Industries Co. Ltd. 8RT-flex58T	13.5	D
1636	ANNABA IMO 9306201	1,574 TEU	2006	168 m	Sulzer - 7RT-flex60C	13.5	D
1637	LION IMO 9208356	1,716 TEU	2000	189 m	Hudong Heavy Machinery - 6 L 70 MC	13.5	D
1638	CAPE FERROL IMO 9359325	1,440 TEU	2008	170 m	MAN - 8S50MC-C	13.5	D
1639	CMA CGM SAHARA IMO 9220861	2,226 TEU	2002	196 m	Hyundai - 8 S 70 MC	13.6	D
1640	CMA CGM FORT ROYAL IMO 9809837	3,300 TEU	2019	219 m	Wärtsilä - 7X72	13.6	D
1641	KESTREL IMO 9626558	1,805 TEU	2013	172 m	Doosan - DOOSAN-MAN 6S60MC-C MK8.1	13.6	D
1642	AVA D IMO 9306225	1,574 TEU	2007	168 m	Hudong Heavy Machinery - 7 RT-FLEX 60C	13.6	D
1643	GRANDE TEMA IMO 9672090	1,800 TEU	2014	236 m	Wärtsilä - 8RT-flex58T	13.6	D
1644	BFAD PACIFIC IMO 9364203	2,490 TEU	2005	207 m	MAN - 7S70MC-C	13.6	D
1645	ESPERANCE IMO 9491484	1,349 TEU	2011	168 m	Wärtsilä - 6RT-FLEX60C-B	13.6	D
1646	ELBBRIDGE IMO 9968920	1,400 TEU	2021	170 m	MAN-B&W 7S50ME-C9	13.7	D
1647	JOANNA IMO 9204477	1,730 TEU	1999	184 m	Sulzer - 6 RTA 62 U	13.7	D
1648	SPRING C IMO 9308027	3,500 TEU	2007	239 m	Hyundai - 7 K 90 MC-C	13.7	D
1649	MSC JIANI IMO 9966934	1,800 TEU	2023	172 m	UnKnown 6S60ME-C10-HPSCR	13.7	D
1650	CMA CGM ABIDJAN IMO 9323481	1,740 TEU	2006	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	13.7	D

Page 33 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.