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)

#1,432 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
1399	MALYOVITSA IMO 9835795	45,516	2020	190 m	MAN - 5G50ME-C9	4.2	B
1407	PALM ISLAND IMO 9624641	61,470	2012	200 m	Mitsui - 6S50MC-C8	4.2	B
1406	ASTREA IMO 9705366	81,838	2015	229 m	Mitsui - 6S60ME-C8.2	4.2	B
1405	CAPE PROVIDENCE IMO 9494228	179,643	2009	292 m	MAN - 6S70MC-C	4.2	B
1404	SAMOA IMO 9473157	75,505	2010	225 m	Hudong Heavy Machinery - 5S60MC	4.2	B
1403	GOLDEN OPAL IMO 9470404	74,232	2017	225 m	MAN - 5S60MC-C	4.2	B
1402	MUSALA IMO 9937294	32,223	2023	190 m	MAN - 6G45ME-C9	4.2	B
1410	HAPPINESS BULKER IMO 9919515	37,694	2023	180 m	MAKITA - 6S46ME-B8	4.2	B
1409	KARPATHOS DAWN IMO 9427342	56,700	2010	190 m	STX - 6 S 50 MC-C	4.2	B
1411	GENIUS SW IMO 9511052	60,200	2015	200 m	MAN - 6S50ME-B9	4.2	B
1408	HARMONY IMO 9449522	32,453	2010	180 m	MAN - 6S42MC	4.2	B
1413	G TAISHAN IMO 9440992	58,780	2008	190 m	MAN - 6S50MC-C	4.2	B
1412	SINOKOR SUNRISE IMO 9602148	77,730	2011	229 m	MAN - 7S50MC-C8	4.2	B
1423	NEW ENDEAVOR IMO 9579638	80,536	2011	229 m	MAN - 7S50MC-C	4.2	B
1422	ULTRA VISION IMO 9878694	61,119	2020	200 m	MAN - 6S50ME-B9	4.2	B
1421	ETG SOUTHERN CROSS IMO 9888015	63,482	2021	200 m	MAN - 6S50ME-C9	4.2	B
1420	NEW ACACIA IMO 1014591	39,415	2024	180 m	J-ENG 6UEC42LSH-EcoD4	4.2	B
1419	AEOLIAN ARROW IMO 9671814	82,053	2018	229 m	MAN - 6S60ME-C8	4.2	B
1418	DESERT GRACE IMO 9849502	63,553	2019	200 m	MAN - 6S50MC-B9	4.2	B
1417	ABILITY IMO 9908281	64,253	2021	200 m	MAN - 6S50ME-C9	4.2	B
1416	MYKONOS IMO 9633410	81,386	2013	229 m	STX - 7 S 50 MC-C	4.2	B
1415	SILVER LADY IMO 9279367	50,329	2003	190 m	Kawasaki - 6S35MC-C	4.2	B
1414	JADE PROSPERITY IMO 9656096	63,756	2014	200 m	MAN - 5S60ME-C8	4.2	B
1425	CL TOMO IMO 9908279	64,273	2021	200 m	Mitsui Engineering & Shipbuilding C Ltd - Japan 6S50ME-C9-EGRBP	4.2	C
1427	NEARCHOS IMO 9852030	61,148	2019	200 m	MAN - 6S50ME-B9	4.2	C
1424	SYLVIA IMO 9471264	80,700	2010	229 m	MAN - 7S50MC-C	4.2	C
1430	JOSCO DEZHOU IMO 9683439	61,657	2014	200 m	Hudong Heavy Machinery - 6S50ME-B9	4.2	C
1429	UNITY DISCOVERY IMO 9726047	60,629	2017	200 m	Hyundai - 6G50ME-B9	4.2	C
1428	GOLDEN AMBER IMO 9458987	74,753	2017	225 m	STX - 5S60MC-C	4.2	C
1431	ALLIANCE IMO 9552824	83,369	2010	229 m	Kawasaki - 6S60MC-C	4.2	C
1426	ASPASIA LUCK IMO 9223485	72,270	2000	225 m	Hitachi - 6S60MC	4.2	C
1432	DESERT RANGER IMO 9699854	61,146	2017	193 m	Hyundai - 7G50ME-B9	4.2	C
1433	NKR ALICE IMO 9914515	61,217	2022	200 m	Hudong Heavy Machinery - 6S50ME-B9	4.2	C
1436	ALANOOD IMO 9837121	80,681	2020	229 m	6S60ME-C10 (Tier III)	4.2	C
1435	KIRA OLDENDORFF IMO 9867566	81,290	2020	228 m	Yichang - 6S60ME-C8 (Tier II)	4.2	C
1434	GRIZZLY IMO 9659232	81,394	2013	229 m	Doosan - 6S60MC-C	4.2	C
1440	BULK INDEPENDENCE IMO 9374002	56,548	2008	190 m	Diesel United - 6S50MC-C8.1-TII	4.2	C
1439	SARIKA NAREE IMO 9726425	63,023	2015	200 m	MAN - 5G60ME-C9	4.2	C
1438	ANDROS SPIRIT IMO 9592537	82,740	2012	229 m	MAN - 6S50MC-C-c	4.2	C
1444	ROJEN IMO 9754927	44,940	2019	185 m	MAN - 5G50ME-B9	4.2	C
1443	AGIA FOTINI IMO 9544164	38,140	2012	185 m	MAN - 6S46MC-C	4.2	C
1442	PRT ACE IMO 9713466	61,290	2014	200 m	MAN - 6S50MC-C8	4.2	C
1441	GNG CONCORD 1 IMO 9629653	75,397	2010	225 m	Hudong Heavy Machinery - HHM-MAN B&W5S60ME-C7	4.2	C
1437	PROPEL GRACE IMO 9605023	61,439	2012	200 m	Mitsui - 6S50MC-C8	4.2	C
1450	FEDERAL PRIDE IMO 9950612	42,686	2023	183 m	MAN-B&W 5S50ME-C9	4.2	C
1449	INTERLINK PRIORITY IMO 9725902	43,500	2017	190 m	Yichang - 5S50ME-B9	4.2	C
1448	EFFIE IMO 9591806	81,911	2012	229 m	Doosan - 5S60MC-C	4.2	C
1447	SOLE IMO 9650145	58,635	2013	197 m	Kawasaki - 6S50MC-C7	4.2	C
1446	SHEILA IMO 9730244	58,607	2016	190 m	MAN - 5S60ME-C	4.2	C
1445	WESTERN TOKYO IMO 9838498	62,647	2019	200 m	MAN B/W	4.2	C

Page 29 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.