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)

#1,385 of 3,531 bulk carriers

CO₂ intensity

4.2 g CO₂/dwt·nm

vs segment average (4.87)

-14% 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
1343	YEOMAN BRIDGE IMO 8912302	96,772	1991	250 m	6S70MC	4.1	B
1352	HAKO IMO 9691814	63,104	2014	200 m	Hudong Heavy Machinery - 5S60ME-C8.1	4.1	B
1356	MEGHNA VICTORY IMO 9928827	66,262	2022	200 m	CSSC-MES Diesel Co. Ltd. 7S50ME-C9	4.1	B
1355	DESERT PIONEER IMO 9899193	61,000	2019	200 m	MAN - 7G50ME-C9	4.1	B
1357	PRINCESS MARGO IMO 9720017	63,342	2015	200 m	MAN - 5S60ME-C8 Tier II	4.1	B
1354	ANDROS IMO 9505352	82,158	2010	229 m	Mitsui - 6S60MC-C	4.1	B
1360	TUO FU 6 IMO 9640671	81,588	2013	229 m	Wärtsilä - 5RT-flex58T	4.1	B
1358	SSI TRIUMPH IMO 9713947	61,236	2014	200 m	MAN - 6S50MC-C8	4.1	B
1353	CRIMSON DELIGHT IMO 9732163	57,955	2015	190 m	Mitsui - 6S50ME-B9	4.1	B
1367	BRITTA OLDENDORFF IMO 9853046	62,623	2020	200 m	MAN - (Tier II)	4.1	B
1366	BORA IMO 9607112	82,000	2014	229 m	Doosan - 5S60MC-C	4.1	B
1365	CIHAN IMO 9622174	81,398	2012	229 m	Hyundai - 6S60MC	4.1	B
1364	THOR INTEGRITY IMO 9222493	52,375	2001	189 m	Mitsui - 6S50MC	4.1	B
1363	JACOB OLDENDORFF IMO 9844203	61,131	2015	200 m	MAN - 6S50ME-B9	4.1	B
1362	BRAVEHEART I IMO 9392444	82,471	2007	229 m	MAN - 6S60MC	4.1	B
1361	PAN FLOWER IMO 9625841	82,687	2012	229 m	MAN - 6S60MC-C	4.1	B
1359	FAIR LADY IMO 9342877	76,608	2002	225 m	Hitachi - HITACHI ZOSEN- MAN B&W 6S60MC-MK6	4.1	B
1368	NORDIC OLYMPIC IMO 9727118	76,180	2015	225 m	MAN - 5S60MC-C	4.1	B
1369	QUEEN SARAH IMO 9618666	81,221	2023	229 m	MAN - 5S60MC-C	4.2	B
1372	MAINA IMO 9699892	63,280	2016	200 m	MAN - 5S60ME-C8 Tier II	4.2	B
1376	XIN SHUN IMO 9252199	75,846	2002	225 m	Mitsui - 7 S 50 MC-C	4.2	B
1371	GREAT LINK IMO 9738519	63,463	2016	200 m	MAN - 5S60ME-C8	4.2	B
1377	AVICL ATERMIS IMO 9859014	81,782	2019	229 m	MAN - 6S60ME-C8	4.2	B
1370	PORT KOBE IMO 9767534	63,520	2016	200 m	Hitachi - 6S50ME-B9	4.2	B
1373	AQUAVITA BAY IMO 9692727	55,757	2014	190 m	Diesel United - 6RT-FLEX50-B	4.2	B
1375	ZHENG RUN IMO 9593816	81,822	2013	229 m	MAN - 5S60ME-C8	4.2	B
1374	MARKET COOPER IMO 9874557	61,223	2015	200 m	MAN - 6S50ME-B9	4.2	B
1381	ACE HALO IMO 9979321	66,065	2024	200 m	MAN-B&W 7S50ME-C9	4.2	B
1380	CATTLEYA IMO 9370757	49,368	2008	200 m	Mitsubishi - 6UEC50LSII	4.2	B
1382	JY LAKE IMO 9845257	81,146	2019	229 m	Hudong Heavy Machinery - 6S70ME-C	4.2	B
1379	MP ULTRAMAX 2 IMO 9703605	63,410	2016	200 m	Doosan - 5S60ME-C8	4.2	B
1384	BARRACUDA ISLAND IMO 9583017	57,631	2015	190 m	MAN - 7S50ME-B9	4.2	B
1383	STAR LAPIS IMO 9426075	93,262	2010	229 m	Wärtsilä - 6S60MC-C	4.2	B
1378	CONCARAN IMO 9820960	63,532	2018	200 m	Mitsui - 6S50ME-B9	4.2	B
1390	IZMIR IMO 9644201	63,200	2013	200 m	Doosan - 5S60ME-C8	4.2	B
1396	KAVO ALKYON IMO 9291121	75,300	2005	225 m	Mitsui - 7 S 50 MC-C	4.2	B
1397	MEGHNA VISION IMO 9758741	61,213	2016	200 m	MAN - 6S50MC-C8	4.2	B
1393	CEMTEX INNOVATION IMO 9593048	81,326	2013	229 m	MAN - 7S50MC-C	4.2	B
1395	GCL HAZIRA IMO 9926726	81,986	2021	229 m	MAN - 6S50ME-C8	4.2	B
1394	BCH BRAMBERG IMO 9696527	63,167	2015	200 m	MAN - 5S60ME-C8	4.2	B
1392	HERCULES IMO 9642382	75,200	2013	225 m	Hyundai - 5 S 60 MC-C	4.2	B
1389	CORNELIE OLDENDORFF IMO 9498846	93,246	2011	229 m	Hyundai - 6S60MC	4.2	B
1391	INDIAN SOLIDARITY IMO 9626663	75,398	2014	225 m	MAN - 6S60ME-C8	4.2	B
1388	ROYAL IMO 9919656	61,201	2022	200 m	MAN - 6S50ME-B9	4.2	B
1387	SEABONI IMO 9688647	62,657	2015	200 m	MAN - 5S60ME-C8 Tier II	4.2	B
1386	VICTORIA T IMO 9817511	61,266	2017	200 m	Mitsui - 6S50ME-B9	4.2	B
1385	CAPELLA IMO 9518165	82,224	2013	229 m	MAN - 6S60MC-C	4.2	B
1398	OMICRON SKY IMO 9330329	77,031	2006	225 m	Hitachi - 6S70MC	4.2	B
1400	MUSALA IMO 9937294	32,223	2023	190 m	MAN - 6G45ME-C9	4.2	B
1399	ASTREA IMO 9705366	81,838	2015	229 m	Mitsui - 6S60ME-C8.2	4.2	B

Page 28 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.