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)

#1,073 of 3,531 bulk carriers

CO₂ intensity

3.9 g CO₂/dwt·nm

vs segment average (4.87)

-20% 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
1054	NING MAY IMO 9891866	85,206	2021	230 m	MAN - 6S60ME-C10	3.9	B
1053	W-STAR IMO 9476678	92,842	2011	229 m	HHI - 6S60MC-C7	3.9	B
1052	SSI VICTORY IMO 9595943	56,781	2012	190 m	MAN - 6S50MC-C7	3.9	B
1051	EASTERN ZINNIA IMO 9624093	81,792	2013	229 m	MAN - 5S60MC-C8	3.9	B
1050	ST. SOFIA IMO 9799630	60,424	2018	200 m	Mitsui - 6S50ME-B9.3	3.9	B
1049	MARIANNE STOEGER IMO 9604859	81,402	2011	229 m	MAN - 6S60MC	3.9	B
1048	NORDIC ODYSSEY IMO 9529451	75,603	2010	225 m	Kawasaki - 6S60MC-C	3.9	B
1056	RED ORCHID IMO 9757890	61,645	2015	200 m	MAN - 6S50ME-B9	3.9	B
1061	NEW WAVELET IMO 9911733	81,984	2021	229 m	MAN - 6S60ME-C8	3.9	B
1063	MINOAN HILL IMO 9471642	93,257	2011	229 m	Doosan - 6S60MC-C MK7	3.9	B
1060	SM SANTOS IMO 9842516	80,857	2020	229 m	MAN - 6S60ME-C	3.9	B
1072	GOOD WISH IMO 9502623	75,018	2011	225 m	Hyundai - 5 S 60 MC-C	3.9	B
1064	MAGIC SEAS IMO 9736169	63,301	2016	200 m	Hudong Heavy Machinery - 5S60ME-C8 Tier II	3.9	B
1059	NS NINGBO IMO 9954979	64,128	2024	200 m	MAN-B&W 6G50ME-C9	3.9	B
1062	AM KRAKOW IMO 9624122	81,752	2013	229 m	MAN - 5S60MC-C8	3.9	B
1071	MEGHNA DREAM IMO 9731705	61,288	2015	200 m	Hitachi - 1D : 2 SA 6 CY	3.9	B
1070	CLIPPER ISADORA IMO 9883091	63,340	2020	200 m	MAN - 6S50ME-B9	3.9	B
1069	PRODIGY IMO 9661106	76,116	2013	225 m	MAN - 5S60ME-C8.2	3.9	B
1068	AMSTEL LION IMO 9434498	60,454	2016	200 m	Kawasaki - 6S50ME-B9	3.9	B
1067	KING MILO IMO 9609512	77,198	2012	225 m	Kawasaki - 5S60MC-C	3.9	B
1066	AOM SOPHIE II IMO 9881366	81,816	2020	229 m	Mitsui - 6S60ME-C8	3.9	B
1065	CL HYAKU IMO 9942081	63,492	2023	200 m	MAN - 6G70ME-C9	3.9	B
1075	ASIAN PRIDE IMO 9725029	62,466	2017	200 m	Mitsui - 6S50ME-B9	3.9	B
1077	DIAMOND ETERNITY IMO 9993468	63,501	2024	200 m	MAN-B&W 6G50ME-C9	3.9	B
1074	TOMINI PROSPERITY IMO 9718181	63,503	2018	200 m	Yichang - 5S60ME-C8	3.9	B
1080	WORLD PRIZE IMO 9860403	62,496	2021	200 m	Mitsui - 5S50ME-B9	3.9	B
1079	LEONIDAS IMO 9696474	63,459	2017	200 m	Doosan - 5S60ME-C8	3.9	B
1078	MAIRINI IMO 9474670	79,023	2010	229 m	MAN - 7S50MC-C	3.9	B
1073	SAROCHA NAREE IMO 9726449	63,046	2017	200 m	Doosan - 5G60ME-C9	3.9	B
1076	DSI POLARIS IMO 9738349	60,404	2018	200 m	Mitsui - 6S50ME-B9	3.9	B
1081	GREENWICH PIONEER IMO 9863819	63,674	2020	200 m	MAN - 6S50ME-C9 (Tier II)	3.9	B
1082	FENG SHOU HAI IMO 9727651	63,365	2017	200 m	Hudong Heavy Machinery - 5S60ME-C8	3.9	B
1085	CLIPPER TERESA IMO 9721073	63,606	2018	200 m	Jiangsu Antai Power Co. Ltd. 5S60ME-C8	3.9	B
1084	STAR ASTRID IMO 9582453	82,158	2012	229 m	Mitsui - 6S60MC-C	3.9	B
1083	AGRI WARRIOR IMO 9780988	64,012	2018	200 m	Mitsui - 6S50ME-B9	3.9	B
1100	AM BUCHANAN IMO 9624110	81,795	2013	229 m	MAN - 5S60MC-C8	3.9	B
1098	EGOR LETOV IMO 9609732	74,518	2012	225 m	HHI - 6S60MC-C8.1	3.9	B
1097	BELKNIGHT IMO 9911666	61,203	2021	200 m	MAN - 6S50ME-B9	3.9	B
1096	KMAX EMPEROR IMO 9477426	92,025	2011	230 m	STX - 7 S 50 MC-C	3.9	B
1095	BROAD RICH IMO 9285562	77,598	2004	225 m	MAN - 6S60MC	3.9	B
1094	FREJA BULKER IMO 9991135	40,281	2024	183 m	MAN-B&W 6G45ME-C9	3.9	B
1093	ALAN IMO 9528562	81,712	2012	229 m	DALIAN MARINE - 7S50MC-C MK7	3.9	B
1092	GISELA OLDENDORFF IMO 9702601	80,839	2015	229 m	MAN - 6S60ME-C	3.9	B
1091	AMIS POWER IMO 9780990	64,012	2018	200 m	Mitsui - 6S50ME-B9	3.9	B
1090	FJELD SAGA IMO 9652507	82,908	2013	229 m	Mitsui - 6S60MC-C8.2	3.9	B
1089	MH ARPEGGIO IMO 9916965	61,236	2022	200 m	MAN - 6S50ME-B9	3.9	B
1088	AMIS HERO IMO 9732400	63,469	2014	200 m	Mitsui - 6S50ME-B9	3.9	B
1099	CL LIANYUNGANG IMO 9747302	81,058	2018	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.9	B
1087	GUARDIAN IMO 9714692	61,286	2015	200 m	MAN - 6S50ME-B9	3.9	B
1086	GERASIMOS IMO 9510333	82,153	2011	229 m	MAN - 6S60MC-C	3.9	B

Page 22 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.