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)

#672 of 3,531 bulk carriers

CO₂ intensity

3.5 g CO₂/dwt·nm

vs segment average (4.87)

-28% 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
646	PLAINPALAIS IMO 9739032	81,756	2015	229 m	MAN - 6S60MC-C8	3.5	A
652	KEY HUNTER IMO 9461312	82,099	2011	229 m	Mitsui - 7 S 50 MC-C	3.5	A
655	CMB JORDAENS IMO 9860635	63,447	2019	200 m	MAN - 6S50ME-B9	3.5	A
654	SEACON OSLO IMO 9980435	85,506	2023	229 m	MAN-B&W 6S60ME-C10	3.5	A
653	CMB MATSYS IMO 9916226	63,620	2021	200 m	Hitachi - 6S50ME-B9	3.5	A
660	ADRIANA ROSE IMO 9727467	81,773	2016	229 m	Mitsui - 6S60MC-C	3.5	A
658	SEAHABIT IMO 9974400	63,264	2024	200 m	MAN-B&W 6G50ME-C9	3.5	A
661	ADA IMO 9727156	81,841	2016	229 m	Kawasaki - 6S60ME-C8.2	3.5	A
657	ULTRA PUMA IMO 9758399	81,855	2016	229 m	Mitsui - 6S60ME-C8.2	3.5	A
659	SPRING LOTUS IMO 9942110	63,539	2023	200 m	MAN-B&W 6S50ME-B9	3.5	A
656	STARGAZER IMO 9964833	66,309	2024	200 m	MAN-B&W 6S50ME-C9	3.5	A
663	VELOS JASPER IMO 9582491	82,030	2012	229 m	MAN - 6S60MC-C	3.5	A
662	KM LONDON IMO 9811957	63,386	2017	200 m	Mitsui - 6S50ME-B9	3.5	A
664	SCARLET EAGLE IMO 9687693	81,842	2014	229 m	Kawasaki - 6S60MC-C	3.5	A
665	MEGHNA CROWN IMO 9838486	62,647	2019	200 m	Mitsui - 6S50ME-B9	3.5	A
671	DARYA NOOR IMO 9520912	58,110	2011	190 m	MAN - 7S50MC-C	3.5	A
670	CYMONA GLORY IMO 9510694	84,091	2011	235 m	Hyundai - 6S60ME-C8	3.5	A
669	GOLDEN IOANARI IMO 9586344	81,827	2011	229 m	Hyundai - 6S60MC-C8	3.5	A
668	NAVIOS PRIMAVERA IMO 9947225	81,340	2022	229 m	MAN - 6S60ME-C8	3.5	A
667	NORD AURIGA IMO 9865556	81,795	2020	229 m	6S60ME-C8	3.5	A
666	DAISY GLORY IMO 9847853	82,058	2019	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.5	A
672	BREGAGLIA IMO 9694945	89,772	2016	240 m	Wärtsilä - 6X62	3.5	A
673	IOKASTI GS IMO 9748722	55,857	2016	190 m	Kawasaki - 6S50MC-C8	3.5	A
675	SUCCESS TRADER IMO 9937581	82,235	2024	229 m	Yichang - 6S60ME-C8	3.5	A
674	ASTERION IMO 9729908	81,193	2017	229 m	Doosan - 6S60ME-C8	3.5	A
684	MELISSUS IMO 9491989	93,029	2012	229 m	MAN - 6S60MC	3.5	A
685	SANTA SOPHIA IMO 9404766	106,498	2009	255 m	Mitsui - MITSUI MAN B&W 6S60MC	3.5	A
680	HONG SHENG IMO 9563627	76,545	2010	225 m	Hudong Heavy Machinery - 5S60MC	3.5	A
683	BADGER ISLAND IMO 9578294	58,086	2013	190 m	Mitsui - 6S50MC-C	3.5	A
682	TAI STRENGTH IMO 9881885	64,458	2021	200 m	MAN - 6S50ME-C9	3.5	A
681	HSL CHICAGO IMO 9888209	63,536	2020	200 m	MAN - 6S50ME-C9	3.5	A
677	GIA INSPIRATION IMO 9948413	85,035	2022	227 m	Dalian Marine Diesel Co Ltd - China 6S60ME-C8-HPSCR	3.5	A
679	BULK FINLAND IMO 9691577	77,126	2010	225 m	MAN - 6S60MC	3.5	A
678	AQUAVITA AIM IMO 9846108	82,192	2019	229 m	MAN - 6S60MC-C8	3.5	A
676	SPAR ARIES IMO 9701920	63,247	2015	200 m	MAN - 5S60ME-C8	3.5	A
686	KT BIRDIE IMO 9597343	74,886	2011	225 m	Mitsui - 7 S 50 MC-C	3.5	A
692	CL QINGSHUI HE IMO 9880295	80,860	2020	229 m	Doosan - 6S60ME-C8	3.5	A
697	ODYSSEAS L IMO 9597381	81,259	2013	229 m	MAN - 6S70MC-C	3.5	A
696	EMERALD DINGHAI IMO 9936252	85,527	2022	229 m	MAN - 6S60ME-C10	3.5	A
691	PERSEUS IMO 9723631	81,210	2015	229 m	MAN - 6S60ME-C8	3.5	A
695	FIRST MARGAUX IMO 9933250	82,276	2023	229 m	CSSC-MES Diesel Co. Ltd. 6S60ME-C10	3.5	A
694	PANTHER MAX IMO 9593402	81,283	2012	229 m	Hyundai - 7S50MC	3.5	A
693	PROTECTOR IMO 9942615	82,357	2022	229 m	CSSC-MES Diesel Co. Ltd. 6S60ME-C10	3.5	A
690	VILLA DESTE IMO 9835941	82,024	2018	229 m	DALIAN MARINE - 6S60ME-C8	3.5	A
689	EVA RICHMOND IMO 9972634	63,610	2024	200 m	MAN-B&W 6G50ME-C9	3.5	A
688	BULK ITALY IMO 9875032	81,603	2020	229 m	MAN - 6S60ME-C8	3.5	A
687	NAVIOS FELICITY I IMO 9864679	81,962	2020	229 m	MAN - 6S60ME-C8	3.5	A
698	ALEXANDRA IMO 9746712	81,870	2017	229 m	Mitsui - 6S60ME-C8	3.5	A
700	RB LEAH IMO 9730830	81,334	2017	229 m	STX - 5G60ME-C9	3.5	A
699	NORTHERN VENTURE IMO 9978779	64,636	2024	200 m	MAN-B&W 6S50ME-C9	3.5	A

Page 14 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.