Most Emission-Efficient Bulk Carriers

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)

#2,626 of 3,531 bulk carriers

CO₂ intensity

5.7 g CO₂/dwt·nm

vs segment average (4.87)

+18% 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 (DWT)

All sizes < 25,000 DWT 25k – 60k DWT 60k – 100k DWT 100k – 200k DWT > 200,000 DWT

Year

2025 2024

3,604

vessels ranked

1.42

greenest (g CO₂/t·nm)

4.65

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
2601	STRATEGIC ENTITY IMO 9723710	39,880	2015	180 m	MAN - 5S50ME-B9	5.7	D
2602	ST PAUL IMO 9425863	57,982	2010	190 m	MAN - 6S50MC-C	5.7	D
2603	OCEAN FUTURE IMO 9418779	55,771	2010	190 m	Wärtsilä - 6RT-flex50	5.7	D
2604	ROTTERDAM PEARL V IMO 9557135	58,000	2010	190 m	Doosan - 6S50MC-C	5.7	D
2605	SANTA MARIA IMO 9389813	75,844	2008	225 m	MAN - 5S60MC-C	5.7	D
2606	SEASTAR VICTORY IMO 9612246	35,320	2013	180 m	Wärtsilä - 5RT-flex50	5.7	D
2607	PATMOS JOHN IMO 9588536	56,633	2011	190 m	Doosan - 6S50MC-C	5.7	D
2608	FEDERAL BEAUFORT IMO 9697818	34,564	2015	200 m	Kawasaki - 5S50ME-B9.3	5.7	D
2609	LOWLANDS PELIKAAN IMO 9700005	39,260	2015	180 m	Yichang - 5S50ME-B9	5.7	D
2610	FILIA IMO 9490868	58,000	2011	190 m	MAN - 6S50MC-C	5.7	D
2611	ANDREA ENTERPRISE IMO 9749946	34,552	2017	180 m	MAKITA - 6S46ME-B8	5.7	D
2612	AFRICAN TEAL IMO 9691046	40,652	2015	180 m	Doosan - 5S50ME-B9	5.7	D
2613	STELLAR ONTARIO IMO 9700811	28,284	2014	169 m	MAN - 6S42MC	5.7	D
2614	APOLLO BULKER IMO 9459151	33,124	2011	177 m	Mitsubishi - 6UEC45LSE	5.7	D
2615	FEDERAL SHIMANTO IMO 9218404	32,787	2001	190 m	Mitsubishi - 6UEC52LA	5.7	D
2616	CAPE KOURION IMO 9481441	79,463	2010	229 m	MAN - 5S60MC-C8	5.7	D
2617	CORINNA IMO 9593842	81,675	2013	229 m	MAN - 5S60ME-C	5.7	D
2618	CL CONTIGO IMO 9703411	40,799	2015	180 m	MAN - 5S60ME-C8	5.7	D
2619	AKSON ADAM IMO 9588598	56,811	2011	190 m	MAN - 6S50MC-C	5.7	D
2620	TS ECHO IMO 9719367	38,863	2016	182 m	Wärtsilä - 5RT-flex50D	5.7	D
2621	INTERLINK CELERITY IMO 9721437	40,111	2013	180 m	Yichang - 5S50ME-B9	5.7	D
2622	IMAVERE IMO 9612325	36,746	2012	187 m	MAN - 6S46MC-C	5.7	D
2623	ANNA-META IMO 9514406	56,280	2010	190 m	MAN - 6S50MC-C	5.7	D
2624	SPLIT IMO 9154505	42,584	1998	188 m	SPLIT SHIPYARD, SPLIT CROATIA 5S60MC	5.7	D
2625	AQUAMARINE SW IMO 9597666	37,119	2012	178 m	Akasaka - 6UEC52LA	5.7	D
2626	SEA BRAVE IMO 9279551	28,657	2004	177 m	Mitsubishi - 5UEC52LA	5.7	D
2627	DESERT MOON IMO 9543770	57,467	2012	193 m	HHI - 7S50MC-C8	5.7	D
2628	ORION IMO 9331880	56,071	2007	190 m	MAN - 6S50MC-C	5.7	D
2629	NAVI SUN IMO 9728409	34,398	2015	180 m	Mitsubishi - 6UEC45LSE	5.7	D
2630	NAVI LYRA IMO 9494747	33,271	2012	178 m	Mitsubishi - 6UEC45LSE	5.7	D
2631	PUMA IMO 9748265	34,979	2017	180 m	Mitsubishi - 6UEC45LSE-Eco-B2	5.7	D
2632	DYNAMIC M IMO 9114610	28,760	1995	172 m	Hitachi - 5S50MC	5.7	D
2633	SHINSUNG ACCORD IMO 9606041	37,063	2015	178 m	MAKITA - 6S46MC-C8.2	5.8	D
2634	PVT GLORIA IMO 9583691	34,240	2011	181 m	Hyundai - 6S50MC	5.8	D
2635	OCEAN CAPELLA IMO 9747041	34,502	2017	180 m	MAKITA - 6S46ME-B8	5.8	D
2636	MEL GRACE IMO 9590955	38,225	2011	180 m	MAKITA - 6S42MC	5.8	D
2637	MINOAS IMO 9519315	56,952	2011	190 m	Doosan - 6S50MC-C	5.8	D
2638	SHINSUNG CLEVER IMO 9606039	37,084	2014	178 m	MAKITA - 6S46MC-C8.2	5.8	D
2639	SEA TRAIN IMO 9876749	38,742	2021	180 m	MAN - 5G50ME-B9	5.8	D
2640	CI YUN SHAN IMO 9592886	56,686	2010	190 m	Hudong Heavy Machinery - 6S50MC-C8	5.8	D
2641	ILIANA IMO 9490715	58,018	2010	190 m	Doosan - 6S50MC-C	5.8	D
2642	CARLA C IMO 9718442	37,500	2015	180 m	Yichang - 5RT-flex50	5.8	D
2643	PRETTY LADY IMO 9223174	50,169	2001	190 m	6S60MC-C	5.8	D
2644	FRANZISKA SCHULTE IMO 9709245	40,092	2015	180 m	Wärtsilä - 6RTA48TD-1 (Tier II)	5.8	D
2645	SIDER MONTEDIPROCIDA IMO 9868443	37,661	2020	180 m	Mitsui - 6S46ME-B8	5.8	D
2646	AP DUBRAVA IMO 9694684	38,703	2015	180 m	Wärtsilä - 5RT-flex50	5.8	D
2647	OCEAN INNOVATION IMO 9659892	38,072	2013	180 m	MAKITA - 6S46MC-C	5.8	D
2648	LAGO DI FIASTRA IMO 9471678	37,387	2013	190 m	Wärtsilä - 6RTA48T	5.8	D
2649	CALLIO IMO 9310721	32,946	2006	177 m	Mitsubishi - 6UEC52LA	5.8	D
2650	BUNUN ACE IMO 9628570	37,744	2013	180 m	MAN - 6S46MC-C	5.8	D

Page 53 of 71 — 3,531 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.