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)

#1,043 of 3,531 bulk carriers

CO₂ intensity

3.9 g CO₂/dwt·nm

vs segment average (4.87)

-21% 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
1001	ARUNA CENGIZ IMO 9552331	58,677	2012	197 m	Kawasaki - 6S50MC-C	3.8	B
1008	STAMFORD EAGLE IMO 9735127	61,530	2016	200 m	MAN - 6S50ME-B9	3.8	B
1012	ARETHUSA IMO 9855563	81,541	2020	229 m	Yichang - 6S60ME-C8	3.8	B
1003	ANTHEA V IMO 9760043	66,609	2016	200 m	MAN - 6S50ME-B9	3.8	B
1011	FEDERAL OSAKA IMO 9853436	60,467	2020	200 m	Mitsui - 6S50ME-B9 (Tier II)	3.8	B
1010	JY LONDON IMO 9867176	81,118	2020	226 m	MAN - 6S60ME-C8	3.8	B
1002	ULTRA VIRTUE IMO 9933028	63,662	2022	200 m	MAN - 6S50ME-B9	3.8	B
1007	DAPHNE IMO 9762596	81,835	2016	229 m	MAN - 6S60ME-C8	3.8	B
1006	INDIAN HARMONY IMO 9626651	75,385	2013	225 m	MAN - 6S60ME-C8	3.8	B
1005	ETRON IMO 9718038	81,080	2016	229 m	Yichang - 6S60ME-C8	3.8	B
1004	FEI JING IMO 9592032	76,098	2011	225 m	Hudong Heavy Machinery - 5S60MC-C	3.8	B
1009	GEOPRIDE IMO 9643556	81,902	2013	229 m	MAN - 6S60MC-C	3.8	B
1015	WEN ZHU HAI IMO 9488475	76,381	2008	225 m	Hudong Heavy Machinery - 6 S 60 MC	3.8	B
1017	IVS WINDSOR IMO 9774458	60,279	2016	200 m	Mitsui - 6S50ME-B9	3.8	B
1014	FEDERAL TWEED IMO 9658898	55,317	2013	190 m	Kawasaki - 6S50MC-C8	3.8	B
1013	PERSEFS IMO 9663350	76,431	2013	225 m	Hefei Rong 5S60MC-C	3.8	B
1016	ZHENG JUN IMO 9593804	81,810	2013	229 m	MAN - 5S60ME-C	3.8	B
1023	ULTRA CRIMSON IMO 9757826	61,084	2016	200 m	Hitachi - 6S50MC-C-8	3.8	B
1022	THE LIVING IMO 9318369	74,405	2007	225 m	Hudong Heavy Machinery - MAN B&W 5560MC-C	3.8	B
1021	SHANDONG FU YUAN IMO 9734769	81,781	2018	229 m	Wärtsilä - 6S60ME-C8	3.8	B
1020	PANASIATIC IMO 9310276	82,962	2005	229 m	MAN - 7S50MC	3.8	B
1019	TAI HONOR IMO 9298519	52,292	2005	190 m	MAN - 6S50MC	3.8	B
1018	PHILHOKUSAI IMO 9549451	61,197	2022	200 m	MAN - 6S50ME-B9	3.8	B
1026	GCL GREECE IMO 9906477	82,299	2021	229 m	MAN - 6S60ME-C8	3.8	B
1025	EVANGELISTRIA IMO 9442718	82,514	2007	229 m	MAN - 7S50MC-C	3.8	B
1024	ARROW LADY IMO 9304215	76,752	2005	225 m	Mitsui - 7 S 50 MC-C	3.8	B
1028	CYCLADES IMO 9799616	60,384	2017	200 m	Mitsui - 6S50ME-B9	3.8	B
1027	GREEN K-MAX 5 IMO 9862619	80,873	2020	229 m	MAN - 6S60ME-C8 (Tier II)	3.8	B
1030	APOLLON IMO 9646663	75,613	2017	225 m	Wärtsilä - 5RT-flex58T	3.9	B
1029	PELICAN ISLAND IMO 9668922	57,905	2014	190 m	Mitsui - 6S50MC-C8.2	3.9	B
1033	PALONA IMO 9667112	81,676	2014	229 m	CSSC - 6S60ME-C8	3.9	B
1040	EVITA IMO 9604964	61,464	2012	200 m	MAN - 6S50MC-C8	3.9	B
1032	INDIGO JUGEM IMO 9748497	61,254	2015	200 m	MAN - 6S50MC-C9.3	3.9	B
1042	MEGHNA SUN IMO 9717072	58,074	2014	190 m	MAN - 6S50ME-B9	3.9	B
1041	SAKIZAYA ACE IMO 9656400	74,936	2013	225 m	Mitsui - 7 S 50 MC-C	3.9	B
1031	CHILOE ISLAND IMO 9610755	58,044	2013	190 m	MAN - 7S50MC-C	3.9	B
1039	SANTA ADRIANA IMO 9652545	77,040	2013	225 m	Mitsui - MITSUI-MAN B&W 5S60MC-C7	3.9	B
1038	GLBS MIGHT IMO 9972804	64,166	2024	200 m	Hudong Heavy Machinery Co Ltd - China 6S50ME-C9-HPSCR	3.9	B
1037	DARYA KOSHI IMO 9973482	39,760	2024	180 m	Makita Corp - Japan 6G45ME-C9-HPSCR	3.9	B
1036	DESPINA V IMO 9727986	81,200	2018	229 m	MAN - 6S60ME-C	3.9	B
1035	PACIFIC ACTIVITY IMO 9731901	63,601	2017	200 m	Hudong Heavy Machinery - 5S60MC-C8	3.9	B
1034	SARITA NAREE IMO 9726413	62,964	2015	200 m	MAN - 5G60ME-C9	3.9	B
1050	EGRET STAR IMO 9593751	81,678	2012	229 m	Hudong Heavy Machinery - HHM-MAN B&W 5S60MC-C.	3.9	B
1049	SSI VICTORY IMO 9595943	56,781	2012	190 m	MAN - 6S50MC-C7	3.9	B
1048	MARIANNE STOEGER IMO 9604859	81,402	2011	229 m	MAN - 6S60MC	3.9	B
1047	NING MAY IMO 9891866	85,206	2021	230 m	MAN - 6S60ME-C10	3.9	B
1046	W-STAR IMO 9476678	92,842	2011	229 m	HHI - 6S60MC-C7	3.9	B
1045	VSC POSEIDON IMO 9673757	74,957	2013	225 m	MAN - 7S50MC-C	3.9	B
1044	EASTERN ZINNIA IMO 9624093	81,792	2013	229 m	MAN - 5S60MC-C8	3.9	B
1043	NISSAKI IMO 9611515	81,466	2013	229 m	MAN - 6S60MC	3.9	B

Page 21 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.