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)

#465 of 3,531 bulk carriers

CO₂ intensity

3.3 g CO₂/dwt·nm

vs segment average (4.87)

-33% 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
454	CMB PERMEKE IMO 9781011	81,795	2019	229 m	Mitsui - 6S50ME-B9	3.3	A
453	GOLDEN SOUL IMO 9950715	84,985	2023	227 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 6S60ME-C10-HPSCR	3.3	A
455	CRYSTAL ADMIRER IMO 9866196	81,794	2020	229 m	MAN - 6S60ME-C8	3.3	A
452	CECI IMO 9340544	82,338	2009	225 m	MAN - 5S60MC-C	3.3	A
458	GENEVA STAR IMO 9311191	75,843	2009	225 m	MAN - 6S60MC	3.3	A
457	CL YANGJIANG IMO 9977373	64,771	2024	200 m	MAN-B&W 6S50ME-C9	3.3	A
456	CASSIOPEIA OCEAN IMO 9837286	81,700	2018	229 m	Mitsui - 6S60ME-C8	3.3	A
451	WESTERN FUJI IMO 9856268	63,597	2020	200 m	MAN - 6S50ME-C9	3.3	A
460	RIK OLDENDORFF IMO 9463657	121,290	2011	260 m	Doosan - DOOSAN-MAN 6S60MC-C	3.3	A
459	CASTOR IMO 9370197	78,888	2008	225 m	MAN - 7S50MC-C	3.3	A
461	BRIGHT WIND IMO 9582972	82,119	2013	229 m	MAN - 6S60MC-C	3.3	A
464	BBG YULIN IMO 9652571	82,293	2015	229 m	Mitsui - 6S60MC-C8	3.3	A
462	CAPE VENTURE IMO 9518921	180,022	2010	292 m	Doosan - 6S70MC-C	3.3	A
463	SOUTHERN HAWK IMO 9858527	80,681	2019	229 m	Mitsui - 6S60ME-C8	3.3	A
465	AEOLIAN FORTUNE IMO 9461192	82,099	2011	229 m	MAN - 6S60MC-C	3.3	A
468	MG HAMMOND IMO 9748045	84,858	2016	229 m	Hitachi - 6S60ME-C	3.3	A
467	BBG LIJIANG IMO 9971953	82,788	2024	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.3	A
466	BADGER IMO 9708980	81,828	2015	229 m	Mitsui - 6S60ME-C	3.3	A
470	NISEA IMO 9609615	82,235	2016	229 m	MAN - 6S60MC	3.3	A
469	FEDERAL IZUMI IMO 9883015	63,454	2020	200 m	Mitsui - 6S50ME-B9	3.3	A
472	BARISM ALICE IMO 9969168	63,752	2023	200 m	MAN-B&W 6S50ME-B9	3.3	A
480	CL YICHUN IMO 9938793	82,304	2023	229 m	MAN - 6S60ME-C8	3.3	A
471	GOLDEN GRACE IMO 9955583	84,504	2021	227 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 6S60ME-C10-HPSCR	3.3	A
481	CHRISTINA B IMO 9304162	77,053	2007	225 m	Kawasaki - 6S60MC-C	3.3	A
473	GRACE LOUISE IMO 9913523	82,519	2022	229 m	Mitsui - 6S60ME-C10	3.3	A
479	VITA FUTURE IMO 9697870	81,938	2015	229 m	MAN - 6S60ME-C8	3.3	A
478	LOWLANDS ISLAND IMO 9984534	63,739	2023	200 m	MAN-B&W 6S50ME-C9	3.3	A
477	KYRA THALEIA IMO 9375915	81,383	2009	225 m	MAN - 7S50MC-C	3.3	A
476	INDIGO ACE IMO 9758387	81,786	2014	229 m	Mitsui - 6S60ME-C8.2	3.3	A
475	LINDEN TRADER IMO 9867578	82,226	2021	229 m	Kawasaki - 6S60ME-C8	3.3	A
474	PEAK HAKU IMO 9888467	82,514	2021	229 m	MAN - 6S60ME-C10	3.3	A
485	YANGZE 22 IMO 9958212	82,399	2022	229 m	MAN - 6S60ME-C10	3.3	A
484	GCL LAZARO IMO 9957476	82,447	2023	229 m	MAN-B&W 6S60ME-C10	3.3	A
486	KEY ACTION IMO 9520766	82,168	2010	229 m	MAN - 7S50MC-C	3.3	A
483	YASA URANUS IMO 9964106	64,058	2023	200 m	MAN-B&W 6S50ME-C9	3.3	A
490	TAI STRIDE IMO 9926001	64,539	2022	200 m	Kawasaki Heavy Industries Ltd - Japan 6S50ME-C9.6-EGRBP diesel	3.3	A
489	TAI STAMINA IMO 9881897	64,458	2021	200 m	MAN - 6S50ME-C9	3.3	A
488	MYRSINI IMO 9422940	82,117	2010	229 m	Mitsui - 6S60MC-C	3.3	A
482	TING MAY IMO 9853113	85,001	2019	228 m	Mitsui - 6S60ME-C8	3.3	A
487	ATHINOULA IMO 9583213	82,177	2012	229 m	Mitsui - 7 S 50 MC-C	3.3	A
493	ATLANTIC AFFINITY IMO 9803352	81,828	2018	229 m	Mitsui - 6S60ME-C8	3.3	A
496	HARVEST FROST IMO 9643879	95,263	2014	237 m	Mitsubishi - 6UEC60LSE-Eco-A2	3.3	A
494	TOKYO QUEEN IMO 9841287	85,062	2020	229 m	Mitsui - 6S60ME-C8	3.3	A
492	NORVIC COPENHAGEN IMO 9968956	63,640	2023	200 m	MAN-B&W 6S50ME-B9	3.3	A
491	NBA MAGRITTE IMO 9512331	82,099	2013	229 m	Mitsui - 6S60MC-C	3.3	A
495	BBG GUIJIANG IMO 9971939	82,799	2024	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.3	A
500	LAURENCE FRANCOISE IMO 9827061	81,772	2019	229 m	MAN - 6S60ME-C8.2	3.3	A
499	YU XIAO FENG IMO 9606431	75,397	2012	225 m	MAN - 5S60ME-C	3.3	A
498	GCL LEADER IMO 9902550	81,946	2021	229 m	Mitsui - 6S60ME-C8.5	3.3	A
497	BEAVER IMO 9746695	81,769	2017	229 m	Mitsui - 6S60ME-C8	3.3	A

Page 10 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.