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)

#1,459 of 3,531 bulk carriers

CO₂ intensity

4.2 g CO₂/dwt·nm

vs segment average (4.87)

-13% 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
1458	SOLE IMO 9650145	58,635	2013	197 m	Kawasaki - 6S50MC-C7	4.2	C
1457	FEDERAL PRIDE IMO 9950612	42,686	2023	183 m	MAN-B&W 5S50ME-C9	4.2	C
1447	GLOBE CLEOPATRA IMO 9403085	58,765	2009	190 m	Mitsui - 6S50MC-C	4.2	C
1455	ETERNITY SW IMO 9425851	58,098	2011	190 m	Mitsui - 6S50MC-C	4.2	C
1454	COMMON ATLAS IMO 9669378	62,985	2014	200 m	Doosan - 5G60ME-C9	4.2	C
1453	CASTILLO DE NAVIA IMO 9722974	119,612	2015	259 m	MAN - 6G60ME-C9	4.2	C
1452	INTERLINK PRIORITY IMO 9725902	43,500	2017	190 m	Yichang - 5S50ME-B9	4.2	C
1451	EPIPHANIA IMO 9582116	80,276	2012	229 m	MAN - 7S50MC-C	4.2	C
1459	LOWLANDS LUCK IMO 9969209	63,482	2023	200 m	MAN-B&W 6S50ME-C9	4.2	C
1465	JAWOR IMO 9452608	79,649	2010	229 m	MAN - 7S50MC-C	4.2	C
1468	WINNER IMO 9305087	74,759	2005	225 m	Hudong Heavy Machinery - 5S60MC	4.2	C
1464	GERTRUDE OLDENDORFF IMO 9727601	80,959	2016	229 m	MAN - 6S60ME-C8	4.2	C
1467	MICHALIS SAN IMO 9648879	55,782	2013	190 m	DU 6RT-flex50	4.2	C
1463	IVS PHOENIX IMO 9774862	60,477	2019	200 m	MAN - 6S50ME-B9	4.2	C
1462	WOLVERINE IMO 9711327	61,292	2015	200 m	Hudong Heavy Machinery - 6S50ME-B9	4.2	C
1461	ARUNA ECE IMO 9635406	55,506	2012	188 m	MAN - 6S50MC-C8	4.2	C
1460	GOOD HOPE MAX IMO 9304241	76,739	2005	225 m	Mitsui - 7 S 50 MC-C	4.2	C
1466	WESTERN SANTIAGO IMO 9838503	62,647	2020	200 m	MAN - 6S50ME-B9	4.2	C
1471	STAR MISTRAL IMO 9684225	63,306	2014	200 m	STX - 5S60ME-C8 Tier II	4.2	C
1470	HONEVER IMO 9533438	61,664	2010	200 m	Kawasaki - 6S60MC-C	4.2	C
1469	SPITHA IMO 9290153	75,411	2005	225 m	STX - 7 S 50 MC-C	4.2	C
1475	MAGIA IMO 9710036	57,586	2015	190 m	MAN - 7S50ME-B9	4.2	C
1474	DESERT SEEKER IMO 9899208	61,000	2019	200 m	MAN - 7G50ME-C9	4.2	C
1473	POPI S IMO 9527233	80,337	2012	229 m	MAN - 7S50MC-C	4.2	C
1472	ENDURANCE SW IMO 9681508	60,225	2015	200 m	Mitsui - 6S50ME-B9.3	4.2	C
1477	NEWSEAS CRYSTAL IMO 9644835	63,800	2013	200 m	Hudong Heavy Machinery - HHM-MAN B&W 5S60MC-C8.2	4.3	C
1476	ATHOS IMO 9761334	57,420	2016	190 m	Mitsui - 7S50ME-B9	4.3	C
1478	SPAR CORONA IMO 9497830	58,018	2011	190 m	MAN - 6S60MC-C	4.3	C
1480	EMMANUEL IMO 9705328	63,371	2015	200 m	MAN - 5G60ME-C9	4.3	C
1479	CLIA IMO 9548237	92,968	2012	229 m	STX - 6S60MC-C	4.3	C
1486	GENCO ENTERPRISE IMO 9707699	63,997	2016	200 m	STX - 5S60MC-C8.2 (Tier II)	4.3	C
1484	AEOLIAN GRACE IMO 9298258	76,128	2007	225 m	Kawasaki - 6S60MC	4.3	C
1485	W-OSLO IMO 9484699	92,997	2011	229 m	MAN - 6S60MC-C	4.3	C
1483	YOUNG SPIRIT IMO 9686558	63,567	2015	206 m	MAN - 6G50ME-B9	4.3	C
1482	CYCAS IMO 9403114	58,710	2007	190 m	Mitsui - 6S50MC-C7.1	4.3	C
1481	ETERNAL BRIGHT IMO 9287780	77,684	2004	225 m	Mitsui - MITSUI MAN B&W 6S60MC	4.3	C
1490	OCEANUS IMO 9670925	63,385	2015	200 m	MAN - 5S60ME-C8	4.3	C
1492	ALEXANDRIA IMO 9592616	82,852	2012	229 m	MAN - 7S50MC-C	4.3	C
1491	PATRICIA OLDENDORFF IMO 9464584	114,753	2010	255 m	MAN - 6S60MC-C	4.3	C
1489	THETIS IMO 9738208	63,500	2015	200 m	Hudong Heavy Machinery - 5S60ME-C8 Tier II	4.3	C
1495	AQUAPROSPER IMO 9713416	61,286	2015	200 m	MAN - 6S50MC-C8	4.3	C
1494	TOMINI FELICITY IMO 9831799	63,601	2020	200 m	MAN - 5S60ME-C8	4.3	C
1488	ANDONIS IMO 9763916	81,600	2017	229 m	Hudong Heavy Machinery - 6S60ME-C8	4.3	C
1487	MOUNTAIN LION IMO 9570852	93,296	2010	229 m	Doosan - 6S60MC	4.3	C
1493	MIDJUR IMO 9835771	47,070	2019	190 m	MAN - 5G50ME-C9	4.3	C
1500	ZEUS IMO 9426049	93,199	2010	229 m	Doosan - 6S60MC-C	4.3	C
1499	LUCENT IMO 9142215	46,609	1997	190 m	Mitsui - 6S50MC	4.3	C
1498	DIAMOND QUEEN IMO 9642136	61,414	2013	200 m	Hitachi - 6S50MC-C-8	4.3	C
1497	LIGNUM WEB IMO 9973054	42,540	2023	183 m	MAN - 5S50ME-C9	4.3	C
1496	BEI LUN 17 IMO 9672052	63,150	2014	200 m	MAN - 5G60ME-C9	4.3	C

Page 30 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.