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)

#1,702 of 3,531 bulk carriers

CO₂ intensity

4.5 g CO₂/dwt·nm

vs segment average (4.87)

-7% 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
1697	KERKYRA IMO 9607162	81,375	2012	229 m	Hyundai - 6S60ME-C	4.5	C
1702	SARONIC CHAMPION IMO 9453523	93,115	2011	229 m	Doosan - 6S50MC	4.5	C
1703	FORTUNE TIGER IMO 9558282	58,159	2013	190 m	MAN - 6S50MC-C	4.5	C
1705	KIAN IMO 9890240	37,391	2021	180 m	MAN - 5S50MC-C8	4.5	C
1704	LAKE GRASSMERE IMO 9942005	40,177	2023	183 m	J-ENG 6UEC42LSH-EcoD3	4.5	C
1709	LETIZIA OETKER IMO 9731717	61,288	2015	200 m	6S50MC-C8	4.5	C
1708	CYPRESS ARROW IMO 9720067	61,022	2015	200 m	MAN - 6S50ME-B9	4.5	C
1707	FENG XIU HAI IMO 9747508	63,408	2016	200 m	Hudong Heavy Machinery - 5S60ME-C8	4.5	C
1706	ARUNA CIHAN IMO 9543756	57,411	2011	193 m	HHI - 7S50MC-C8	4.5	C
1711	FEDERAL TAMBO IMO 9644495	55,160	2013	190 m	Kawasaki - 6S50MC-C	4.5	C
1713	DANAE IMO 9926271	40,015	2022	183 m	MAN - 6S46ME-B8	4.5	C
1710	LENI IMO 9362982	77,008	2008	225 m	Hitachi - 6S60MC	4.5	C
1716	GLAFKOS IMO 9696448	63,519	2016	200 m	MAN - 5S60ME-C8	4.5	C
1715	ATHINA L IMO 9487627	81,358	2011	229 m	MAN - 7S50MC-C8	4.5	C
1714	XIN YU IMO 9244362	74,090	2001	225 m	7S50MC-MKVI	4.5	C
1719	IOANNIS IMO 9760158	60,402	2016	200 m	Mitsui - 6S50ME-B9	4.5	C
1718	PATRICIA V IMO 9453054	75,354	2010	225 m	MAN - 5S60MC-C	4.5	C
1717	OLIVIA IMO 9973535	40,010	2024	183 m	6S46ME-B8-HPSCR	4.5	C
1712	TERN BULKER IMO 9676101	57,896	2014	190 m	MAN - 6S50MC-C8	4.5	C
1720	KANSU IMO 9860283	37,440	2021	180 m	Kawasaki - 5S50MC-C8	4.5	C
1721	AFRICAN HORNBILL IMO 9599779	61,440	2011	200 m	MAN - 6S50MC-C8	4.5	C
1725	LEFKADA IMO 9767546	37,951	2016	180 m	MAKITA - 6S50MC-C8	4.5	C
1724	ARTEMISSIO IMO 9762364	63,505	2017	200 m	Hitachi - 6S50MC-C-8	4.5	C
1723	BULK SACHUEST IMO 9483231	55,618	2010	188 m	MAN - 6S50MC-C	4.5	C
1722	SEAHARMONY IMO 9688635	62,770	2015	200 m	MAN - 5S60ME-C8 Tier II	4.5	C
1728	ECO CZAR IMO 9340556	82,372	2009	225 m	MAN - 5S60MC-C	4.5	C
1727	LIBRA-XS IMO 9282742	52,441	2003	190 m	MAN - 6S50MC	4.5	C
1726	CORAL VI IMO 9464405	76,596	2008	225 m	Mitsui - 6S60MC	4.5	C
1731	GEORGIA S IMO 9502647	75,081	2011	225 m	Hyundai - 5 S 60 MC-C	4.5	C
1730	FURNESS VICTORIA IMO 9640621	58,648	2012	197 m	Kawasaki - 6S50MC-C7	4.5	C
1729	MINOAN DIGNITY IMO 9294484	76,801	2004	225 m	Mitsui - 7 S 50 MC-C	4.5	C
1735	JOKER IMO 9448578	57,982	2012	190 m	MAN - 6S50MC-C	4.6	C
1734	BULK BAHAMAS IMO 9514315	56,141	2012	190 m	MAN - 6S50MC-C	4.6	C
1736	DESTINY IMO 9385491	54,204	2009	190 m	Kawasaki - 6S50MC-C	4.6	C
1733	FEDERAL CLYDE IMO 9671072	34,564	2016	200 m	MAN - 6S46MC-C	4.6	C
1732	SANTOS EAGLE IMO 9699347	63,537	2015	200 m	MAN - 5S60ME-C8	4.6	C
1748	MENOMONEE IMO 9730256	58,595	2016	190 m	Jiangsu Antai Power Co. Ltd. 5S60ME-C8	4.6	C
1749	GLORIOUS IMO 9729831	63,338	2014	200 m	Doosan - 5S60ME-C8	4.6	C
1745	ELENA VE IMO 9453066	69,999	2010	225 m	MAN - 5S60MC-C	4.6	C
1747	BONITA IMO 9231286	76,623	2001	225 m	MITSUI ENGINEERING & SHIPBUILDING, TOKYO JAPAN 6 S 60 MC	4.6	C
1746	KYRA PANAGHIA IMO 9647277	63,351	2012	200 m	Hyundai - 5S60ME-C8	4.6	C
1744	EVANGELISTRIA IMO 9383857	75,844	2008	225 m	MAN - 5S60MC-C	4.6	C
1742	CAPE GRECO IMO 9481477	79,452	2011	229 m	HHI - 5S60MC-C8	4.6	C
1743	MARKET PORTER IMO 9852913	61,208	2015	200 m	Hudong Heavy Machinery - 6S50ME-B9	4.6	C
1741	BIRD OF PARADISE IMO 1014618	40,259	2024	183 m	J-ENG 6UEC42LSH-EcoD3	4.6	C
1740	ANANI IMO 9711432	61,631	2015	200 m	MAN - 6S50ME-B9	4.6	C
1739	ACHI IMO 9575137	63,301	2012	200 m	Doosan - 5S60ME-C8	4.6	C
1738	QING PING SHAN IMO 9741504	63,474	2015	200 m	MAN - 5S60ME-C8	4.6	C
1737	ARIES SAKURA IMO 9881146	39,870	2020	183 m	Mitsui - 6S46ME-B8	4.6	C
1750	UNITY N IMO 9490466	79,642	2011	229 m	Hyundai - 7 S 50 MC-C 7	4.6	C

Page 35 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.