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)

#929 of 3,531 bulk carriers

CO₂ intensity

3.8 g CO₂/dwt·nm

vs segment average (4.87)

-23% 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 (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
898	TAHO AUSTRALIA IMO 9846067	81,788	2015	229 m	MAN - 6S60ME-C8	3.7	B
904	NIKOLAS D IMO 9474723	80,902	2018	229 m	MAN - 6S60ME-C8	3.7	B
903	MERCURY RISING IMO 9687708	81,027	2015	229 m	MAN - 6S60ME-C8	3.7	B
902	LIGHT VENTURE IMO 9868895	81,492	2020	229 m	6S60ME-C8	3.7	B
912	NORD CRUX IMO 9728203	81,791	2016	229 m	Mitsui - 6S60ME-C	3.7	B
916	BLUE SPIRIT IMO 9471252	80,502	2010	229 m	MAN - 7S50MC-C	3.7	B
906	W-LUNA IMO 9756925	81,115	2016	229 m	CSSC - 6S60MC-C	3.7	B
915	LILA NANGLI IMO 9596337	180,184	2010	292 m	MAN - 6S70MC-C	3.7	B
914	NAVIOS CORAL IMO 9774264	84,904	2016	229 m	Mitsui - 6S60ME-C	3.7	B
905	JORITA IMO 9852731	63,532	2019	200 m	MAN - 6S50MC-C8	3.7	B
911	SPAR INDUS IMO 9734991	63,302	2016	200 m	MAN - 5S60ME-C8	3.7	B
910	APHRODITE L IMO 9487615	81,365	2011	229 m	MAN - 7S50MC-C8	3.7	B
909	XIN HAI TONG 803 IMO 9591818	81,905	2012	229 m	Doosan - 5S60MC-C	3.7	B
908	MEGHNA PROGRESS IMO 9928853	66,258	2023	200 m	MAN - 7S50ME-C9	3.7	B
907	SSI DILIGENT IMO 9919022	63,787	2022	200 m	MAN - 6G50ME-C9	3.7	B
913	SSI DISCOVERY IMO 9969144	63,712	2023	200 m	MAN-B&W 6S50ME-C9	3.7	B
919	PAN ENERGEN IMO 9621405	81,170	2012	229 m	MAN - 5S60MC-C8	3.7	B
918	CHRISTINE OLDENDORFF IMO 9537898	93,077	2010	229 m	Hyundai - 6S60MC-C	3.7	B
920	POLYDEFKIS IMO 9843417	80,996	2020	229 m	Doosan - 6S60ME-C8 (Tier II)	3.7	B
917	JOLLY DANUBE IMO 9471240	80,505	2010	229 m	MAN - 7S50MC-C	3.7	B
928	BRIGHT IMABARI IMO 9801316	63,504	2017	200 m	Mitsui - 6S50MC-B9	3.7	B
927	ARISTA IMO 9244831	76,015	2002	225 m	Mitsui - 6S60MC	3.7	B
926	IRINA IMO 9723655	81,600	2016	229 m	MAN - 6S60ME-C8	3.7	B
925	EPICURUS IMO 9328560	75,395	2005	225 m	Hitachi - 6S60MC	3.7	B
924	TRANS AFRICA IMO 9768239	81,271	2017	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.7	B
923	NAVIOS SKY IMO 9724180	82,056	2015	229 m	Mitsui - 1D : 2 SA 6 CY	3.7	B
922	PMS AUERHAHN IMO 9729348	60,948	2015	198 m	Wärtsilä - 6RT-flex50	3.7	B
921	ASL VENUS IMO 9510345	82,153	2011	229 m	MAN - 7S50MC-C	3.7	B
930	MARINE BRIGHT IMO 9581681	114,013	2012	250 m	HHI - 7S60MC-C7	3.8	B
929	CAPTAIN HADDOCK IMO 9839791	61,094	2019	200 m	MAN - 6S50ME-B9	3.8	B
934	W-PACIFIC IMO 9596650	81,233	2013	229 m	MAN - 5S60MC-C	3.8	B
940	ETERNAL STARS IMO 9290842	87,052	2005	229 m	Sulzer - 6RTA58T	3.8	B
933	CSSC BRIGHT IMO 9830068	81,574	2018	229 m	Hudong Heavy Machinery - 6S60ME	3.8	B
939	DONA BIBI IMO 9600619	81,966	2012	229 m	MAN - 6S60MC-C8	3.8	B
938	CHAILEASE VIRTUE IMO 9454280	80,647	2011	225 m	Hitachi - 7S50MC-C	3.8	B
937	MAJESTIC STAR IMO 9865568	81,878	2020	229 m	MAN - 6S60ME-C8	3.8	B
932	ORION OCEAN IMO 9738935	61,321	2015	200 m	Hitachi - 6S50MC-C-8	3.8	B
935	VENEZIA IMO 9799628	60,388	2017	200 m	Mitsui - 6S50ME-B9.3	3.8	B
931	NAVIOS HOPE IMO 9328558	75,397	2005	225 m	Hitachi - 6S60MC	3.8	B
936	MAGIC P IMO 9288447	76,453	2004	225 m	MAN - 7S50MC-C	3.8	B
946	MAMA SARA IMO 9933236	82,282	2022	229 m	CSSC-MES Diesel Co. Ltd. 6S60ME-C10	3.8	B
947	IVS OKUDOGO IMO 9870874	61,331	2019	200 m	MAN - 6S50ME-B9.5	3.8	B
945	EVMAR IMO 9738026	82,039	2016	229 m	DALIAN MARINE - 6S60ME-C8.2 (Tier II)	3.8	B
944	PACIFIC ACHIEVEMENT IMO 9712917	61,414	2016	200 m	MAN - 6S50ME-B9	3.8	B
943	CLARA B IMO 9304083	77,073	2006	225 m	MAN - 5S60MC-C	3.8	B
942	ULUSOY 11 IMO 9586411	79,422	2011	229 m	Wärtsilä - 7RT-flex50	3.8	B
941	CARAVOS GLORY IMO 9584322	81,672	2012	229 m	MAN - 6S60MC-CMK8.1 (tier II)	3.8	B
950	LAUSANNE IMO 9775385	60,696	2017	198 m	Diesel United - 6RT-flex50	3.8	B
949	GNG CONCORD 2 IMO 9715311	75,700	2014	225 m	MAN - 5S60ME-C	3.8	B
948	JAG AARATI IMO 9478200	80,323	2011	229 m	MAN - 7S50MC-C	3.8	B

Page 19 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.