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)

#1,330 of 3,531 bulk carriers

CO₂ intensity

4.1 g CO₂/dwt·nm

vs segment average (4.87)

-16% 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
1300	GOLDEN BRILLIANT IMO 9438638	74,500	2013	225 m	MAN - 5S60MC	4.1	B
1299	RUI NING 20 IMO 9595682	75,564	2013	225 m	MAN - 5S60MC	4.1	B
1298	GREEN K-MAX 4 IMO 9838084	80,891	2020	229 m	Hyundai - 6S60ME-C8 (Tier II)	4.1	B
1305	ATENI IMO 9656175	87,264	2014	229 m	Hudong Heavy Machinery - 5S60MC-C	4.1	B
1304	UTOPIA IMO 9826457	64,499	2020	200 m	Mitsui - 6S50ME-B9	4.1	B
1308	COMMON GALAXY IMO 9704831	63,172	2015	200 m	Hudong Heavy Machinery - 5G60ME-C9	4.1	B
1313	ZURICH IMO 9668893	81,922	2014	229 m	MAN - 7S50MC-C	4.1	B
1307	JY RIVER IMO 9845269	81,161	2019	229 m	Hudong Heavy Machinery - 6S70ME-C8	4.1	B
1314	MAGIC MARS IMO 9691400	76,822	2014	223 m	Hyundai - 5S60ME-C8	4.1	B
1306	HARMONY IMO 9994802	39,928	2024	180 m	MAN-B&W 5S50ME-C9	4.1	B
1311	CL LUZHOU IMO 9943580	61,256	2021	200 m	MAN - 6S50ME-B9.5	4.1	B
1310	INTHIRA NAREE IMO 9732199	63,800	2014	200 m	JIANGSU ANTAI POWER MACHINERY CO., LTD. JAD-MAN-5S60ME-C8	4.1	B
1309	FAME IMO 9287132	75,912	2004	225 m	MITSUI ENGINEERING 6S60MC-MKIII	4.1	B
1312	RISING SKY.GR IMO 9782259	63,405	2017	200 m	Hitachi - 6S50ME-B9	4.1	B
1316	IOLCOS LEGACY IMO 9425136	87,375	2010	229 m	MAN - 5S60MC-C	4.1	B
1315	WADI ALMOLOUK IMO 9897999	82,318	2020	229 m	CSSC-MES Diesel Co Ltd - China 6S60ME-C8	4.1	B
1320	LUCKY HARMONY IMO 9267613	76,629	2003	225 m	Mitsui - 6S60MC	4.1	B
1322	CHAILEASE BRIGHT IMO 9642485	76,249	2012	225 m	MAN - 5S60MC-C	4.1	B
1319	TOMINI ENTITY IMO 9831775	63,500	2020	200 m	MAN - 5S60ME-C8	4.1	B
1323	CAPTAIN J. NEOFOTISTOS IMO 9617430	79,501	2012	229 m	MAN - 5S60MC-C	4.1	B
1318	CHRIS GR IMO 9284506	55,715	2005	190 m	Kawasaki - 6S50MC-C	4.1	B
1317	ASSOS IMO 9544712	76,529	2009	225 m	Mitsui - 6S60MC	4.1	B
1321	PATROKLOS IMO 9729893	81,149	2017	229 m	Doosan - 6S60ME-C8	4.1	B
1324	NORD AGANO IMO 9893266	63,436	2020	200 m	Mitsui - 6S50ME-B9	4.1	B
1328	OCEAN BRAVE IMO 9883352	63,226	2020	200 m	MAN - 5S60ME-C8	4.1	B
1327	GIORGOS DRACOPOULOS IMO 9668403	61,398	2013	200 m	MAN - 6S50MC-C8	4.1	B
1329	OMICRON TITINA IMO 9304277	76,806	2005	225 m	MAN - 7S50MC-C	4.1	B
1326	BW OSAKA IMO 9836567	81,796	2020	229 m	MAN - 6S60ME-C8	4.1	B
1325	SEA PLUTO IMO 9609146	81,007	2013	229 m	MAN - 5S60MC-C	4.1	B
1335	YILDIZLAR 3 IMO 9370795	49,507	2008	200 m	Mitsubishi - 6UEC50LSII	4.1	B
1334	NM SAKURA IMO 9703643	60,948	2015	198 m	Wärtsilä - 6RT-flex50	4.1	B
1336	NESTOR S IMO 9473341	75,200	2011	225 m	MAN - 5S60MC-C	4.1	B
1333	ARCTURUS IMO 9221334	76,397	2001	225 m	Mitsui - 6S60MC	4.1	B
1338	PAC ACHERNAR IMO 9913676	63,101	2021	200 m	MAN - 5S60ME-C8	4.1	B
1337	HOPA IMO 9684213	63,301	2013	200 m	MAN - 5S60ME-C8 Tier II	4.1	B
1332	BULK GREECE IMO 9851323	81,606	2019	229 m	MAN - 6S60ME-C8	4.1	B
1331	GLORY FIRST IMO 9713909	77,157	2014	225 m	MAN - 6S60MC	4.1	B
1330	BRISTOL IMO 9966829	64,701	2024	200 m	Hudong Heavy Machinery Co Ltd - China 6S50ME-C9-HPSCR	4.1	B
1350	YEOMAN BRIDGE IMO 8912302	96,772	1991	250 m	6S70MC	4.1	B
1349	BULK ENDURANCE IMO 9782003	60,000	2017	199 m	MAN - 6S50ME-B9	4.1	B
1348	IOLAOS IMO 9696450	63,413	2016	200 m	MAN - 5S60ME-C8	4.1	B
1347	QUEENA IMO 9736286	82,082	2016	229 m	MAN - 6S60ME-C8	4.1	B
1346	ANGLO ALEXANDRIA IMO 9451044	114,247	2011	255 m	MAN - 6S60MC-C	4.1	B
1345	NIREAS IMO 9611905	82,067	2012	229 m	MAN - 6S60MC-C7	4.1	B
1344	HAKO IMO 9691814	63,104	2014	200 m	Hudong Heavy Machinery - 5S60ME-C8.1	4.1	B
1343	BULK POLAND IMO 9682863	82,150	2010	229 m	MAN - 6S60MC-C	4.1	B
1342	DESERT HARRIER IMO 9756626	60,447	2017	200 m	Mitsui - 6S50ME-B9	4.1	B
1341	ARAMIS IMO 9593359	55,830	2012	190 m	Wärtsilä - 6RT-flex50	4.1	B
1340	TOMINI DYNASTY IMO 9721360	63,657	2018	200 m	Yichang - 5S60ME-C8	4.1	B
1339	ROYAL AWARD IMO 9381201	88,266	2007	230 m	Mitsui - 6S60MC-MKVI	4.1	B

Page 27 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.