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)

#1,256 of 3,531 bulk carriers

CO₂ intensity

4.0 g CO₂/dwt·nm

vs segment average (4.87)

-17% 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
1253	TEXEL ISLAND IMO 9640059	61,453	2012	200 m	Mitsui - 6S50MC-C8	4.0	B
1252	W-EMERALD IMO 9605633	81,652	2012	229 m	Wärtsilä - 5RT-flex58T	4.0	B
1251	BELFORCE IMO 9911678	61,224	2021	200 m	Hudong Heavy Machinery - 6S50ME-B9	4.0	B
1250	PAC ALCOR IMO 9913640	63,144	2021	200 m	MAN - 6S60ME-C8	4.0	B
1247	SSI IRRESISTIBLE IMO 9603154	81,708	2013	229 m	MAN - 5S60ME-C	4.0	B
1264	SOTKA IMO 9792462	64,043	2018	200 m	Mitsui - 6S50ME-B9	4.0	B
1258	STAR SYDNEY IMO 9699373	63,529	2015	200 m	MAN - 5S60ME-C8	4.0	B
1257	CL YINGNA HE IMO 9890666	63,126	2021	200 m	MAN - 6S60ME-C8	4.0	B
1256	STAR HELENA IMO 9361213	82,187	2006	229 m	Mitsui - 7 S 50 MC-C	4.0	B
1261	MARINE VICTORY IMO 9455533	113,933	2011	250 m	Hyundai - 6S60MC-C	4.0	B
1265	SANTANDER IMO 9916305	63,650	2022	200 m	Hyundai Heavy Industries Co Ltd - South Korea 6G50ME-C9	4.0	B
1260	NORDIC ODIN IMO 9687239	76,180	2015	225 m	MAN - 5S60MC-C	4.0	B
1267	S RUMBA IMO 9712498	84,867	2015	229 m	MAN - 6S60MC-C	4.0	B
1266	KIM OLDENDORFF IMO 9848998	81,284	2019	229 m	Yichang - 6S60ME-C8	4.0	B
1259	ZHENG KAI IMO 9593787	81,877	2012	229 m	MAN - 5S60ME-C	4.0	B
1263	NORD HOUSTON IMO 9989297	40,552	2024	180 m	Yichang Marine Diesel Engine Co Ltd - China 5S50ME-C9-HPSCR	4.0	B
1262	GOOD HEART IMO 9669380	62,996	2014	200 m	Doosan - 5G60ME-C9	4.0	B
1269	ANTIPAROS IMO 9600657	81,572	2012	229 m	Doosan - 6S60MC-C	4.1	B
1268	FEDERAL TYNE IMO 9658903	55,160	2014	190 m	Diesel United - 6RT-flex50-D	4.1	B
1282	GLORIA IMO 9313307	82,464	2011	225 m	Kawasaki - 6S60MC-C	4.1	B
1281	GOLDEN FREEZE IMO 9849904	81,135	2021	229 m	MAN - 6S60ME-C8 (Tier II)	4.1	B
1280	XIN HAI TONG 52 IMO 9617478	57,000	2011	190 m	Hyundai - 6S50MC-C	4.1	B
1279	JOHNY IMO 9537903	93,039	2010	229 m	Hyundai - 6 S 60 MC-C 7	4.1	B
1278	BUILDER IMO 9589255	81,541	2012	229 m	MAN - 7S50MC-C	4.1	B
1277	EVER ALLIANCE IMO 9423255	57,991	2011	190 m	Mitsui - 6S50MC-C	4.1	B
1276	LEM MARIGOLD IMO 9845805	64,663	2020	200 m	MAN - 7G50ME-C9	4.1	B
1275	MEDI ATLANTICO IMO 9774446	60,550	2016	200 m	Kawasaki - 6S50ME-B9.3	4.1	B
1274	ISSARA NAREE IMO 9732187	64,000	2012	200 m	JIANGSU ANTAI POWER MACHINERY CO., LTD. JAD-MAN-5S60ME-C8	4.1	B
1273	MONT BLANC HAWK IMO 9790816	81,638	2017	229 m	Mitsui - 6S60ME-C8	4.1	B
1272	KMAX EVDOKIA IMO 9341873	78,932	2007	225 m	Mitsui - 7 S 50 MC-C	4.1	B
1271	EY HAYDN IMO 9702510	63,608	2015	200 m	MAN - 5S60ME-C8	4.1	B
1270	KATJA OLDENDORFF IMO 9867554	81,297	2020	229 m	Yichang - 6S60ME-C8 (Tier II)	4.1	B
1283	FJELD SVEA IMO 9626687	81,510	2013	229 m	MAN - 7S50MC-C	4.1	B
1287	RUBY IMO 9714707	61,192	2013	200 m	MAN - 6S50ME-B9	4.1	B
1289	YANGTZE JEWEL IMO 9742235	63,212	2015	200 m	MAN - 5G60ME-C9	4.1	B
1286	KATERINA III IMO 9500273	75,700	2011	225 m	MAN - 5S60MC	4.1	B
1290	FEDERAL INDUS IMO 9860582	63,458	2019	200 m	MAN - 6S50MC-B9	4.1	B
1285	DORIC VICTORY IMO 9425887	58,091	2010	190 m	Mitsui - 6S50MC-C	4.1	B
1284	TOP MARINE IMO 9995351	39,850	2024	180 m	MAN-B&W 5S50ME-C9	4.1	B
1288	SANTA VENERA IMO 9977971	42,823	2024	180 m	MAN-B&W 5S50ME-C9	4.1	B
1300	SCARLET LADY IMO 9225043	75,336	2001	225 m	Hyundai - 6S60MC	4.1	B
1299	GREEN K-MAX 4 IMO 9838084	80,891	2020	229 m	Hyundai - 6S60ME-C8 (Tier II)	4.1	B
1298	BULK DESTINY IMO 9781994	60,000	2017	200 m	MAN - 6S50ME-B9	4.1	B
1297	LILAC HARMONY IMO 9780964	38,581	2020	180 m	MAN - 6S50ME-B8	4.1	B
1296	MAYE MANX IMO 9931549	63,525	2022	200 m	Mitsui Engineering & Shipbuilding Co. Ltd. 6S50ME-C9-EGRBP	4.1	B
1295	LOWLANDS PATRASCHE IMO 9979137	63,458	2024	200 m	MAN-B&W 6S50ME-C9	4.1	B
1294	HARLEQUIN IMO 9979101	40,636	2023	183 m	MAN-B&W 6G45ME-C9	4.1	B
1293	GOLDEN BRILLIANT IMO 9438638	74,500	2013	225 m	MAN - 5S60MC	4.1	B
1292	DEANA IMO 9941996	37,980	2023	180 m	MAN - 6S46ME-B8.5	4.1	B
1291	VICTORIA MAY IMO 9730220	58,634	2016	190 m	MAN - 5S60ME-C	4.1	B

Page 26 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.