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 2025. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2025)

#1,489 of 3,436 bulk carriers

CO₂ intensity

4.2 g CO₂/dwt·nm

vs segment average (4.71)

-11% 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

3,507

vessels ranked

1.74

greenest (g CO₂/t·nm)

4.46

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
1453	MAMA STRENGTH IMO 9673525	75,610	2014	225 m	MAN - 5S60ME-C8	4.1	C
1451	KMAX EMPEROR IMO 9477426	92,025	2011	230 m	STX - 7 S 50 MC-C	4.1	C
1450	XIN HAI TONG 805 IMO 9618678	81,805	2012	229 m	Wärtsilä - 7RT-flex50	4.1	C
1449	IOANNIS IMO 9760158	60,402	2016	200 m	Mitsui - 6S50ME-B9	4.1	C
1457	BULK DESTINY IMO 9781994	60,000	2017	200 m	MAN - 6S50ME-B9	4.2	C
1456	UM MINATO IMO 9982809	66,120	2025	200 m	MAN - 7S50ME-C9	4.2	C
1458	ALTAIR SKY IMO 9811555	60,492	2017	200 m	Mitsui - 6G50ME-B9	4.2	C
1455	GIEWONT IMO 9452593	79,649	2010	229 m	MAN - 7S50MC-C	4.2	C
1461	BBC VENUS IMO 9965590	39,827	2023	180 m	Makita Corp - Japan 6G45ME-C9-HPSCR	4.2	C
1460	GOOD HOPE MAX IMO 9304241	76,739	2005	225 m	Mitsui - 7 S 50 MC-C	4.2	C
1459	JACOB OLDENDORFF IMO 9844203	61,131	2015	200 m	MAN - 6S50ME-B9	4.2	C
1463	INDIGO GARLAND IMO 9860702	63,509	2020	200 m	Hitachi - 6S50ME-B9	4.2	C
1462	PROPEL FORTUNE IMO 9500699	58,168	2012	190 m	Mitsui - 6S50MC-C7.1	4.2	C
1466	EVER GRAND IMO 9613989	81,688	2013	229 m	Dalian 5RT-flex58T	4.2	C
1465	STAR GALAXY IMO 9628908	81,666	2012	229 m	DALIAN MARINE - 5RT-flex58T	4.2	C
1464	WARRIOR IMO 9605865	56,780	2012	190 m	Doosan - 6S50MC-C	4.2	C
1474	THEOLOGOS S IMO 1029479	63,786	2025	200 m	MAN-B&W 6G50ME-C9	4.2	C
1473	ARMONIA.GR IMO 9758868	61,242	2016	200 m	MAN - 6S50MC-C8	4.2	C
1475	GENCO HUNTER IMO 9368871	57,982	2007	190 m	MAN - 6S50MC-C	4.2	C
1472	PRESINGE IMO 9715452	81,886	2015	229 m	MAN - 6S60ME-C8	4.2	C
1467	DRAFTDODGER IMO 9746102	66,545	2016	200 m	Mitsui - 7S50MC-C8.2-TII	4.2	C
1471	DIONE IMO 9729881	81,145	2017	229 m	Doosan - 6S60ME-C8	4.2	C
1470	PESSADA IMO 9174270	75,484	1999	225 m	Hitachi - 6S60MC	4.2	C
1469	STAR CAPE TOWN IMO 9700134	63,707	2015	200 m	MAN - 5S60ME-C8	4.2	C
1468	DE MING HAI IMO 9364746	76,431	2008	225 m	Hudong Heavy Machinery - 5S60MC	4.2	C
1478	GENCO MADELEINE IMO 9705976	63,166	2014	200 m	MAN - 5S60ME-C8	4.2	C
1480	ATALANTA IMO 9726566	63,456	2017	200 m	Doosan - 5S60ME-C8	4.2	C
1477	KYTHIRA I IMO 9590046	81,444	2011	229 m	MAN - 6S60MC-C	4.2	C
1488	PAN ORION IMO 9855848	63,614	2020	200 m	DALIAN MARINE - 5S60ME-C8	4.2	C
1481	GOLDEN HOPE IMO 9233260	74,910	2000	225 m	Hitachi - 6S60MC	4.2	C
1476	METSOVO IMO 9708942	57,593	2015	190 m	MAN - 7S50ME-B9	4.2	C
1479	ALAN IMO 9528562	81,712	2012	229 m	DALIAN MARINE - 7S50MC-C MK7	4.2	C
1487	DAWN IMO 9750440	63,561	2018	200 m	DALIAN MARINE - 5S60MC-C8	4.2	C
1486	GOLDEN BRILLIANT IMO 9438638	74,500	2013	225 m	MAN - 5S60MC	4.2	C
1485	POSEIDON.GR IMO 9760067	60,370	2013	200 m	Mitsui - 6S50ME-B9	4.2	C
1484	XIN HAI TONG 806 IMO 9624110	81,795	2013	229 m	MAN - 5S60MC-C8	4.2	C
1483	BULK BRENTON IMO 9764051	57,679	2016	190 m	Mitsui - 6S50MC-C	4.2	C
1482	PERSEFS IMO 9663350	76,431	2013	225 m	Hefei Rong 5S60MC-C	4.2	C
1496	RICH GLORY IMO 9324629	52,346	2005	190 m	Mitsui - 6S50MC	4.2	C
1499	SSI RESOLUTE IMO 9918755	63,856	2022	200 m	MAN - 6G50ME-C9	4.2	C
1498	XIN HAI TONG 50 IMO 9632349	56,616	2011	190 m	MAN - 6S50MC-C	4.2	C
1497	YI CHUN 15 IMO 9631474	56,735	2012	190 m	MAN - 6S50MC-C	4.2	C
1495	IDEE FIXE IMO 9700677	63,458	2015	200 m	MAN - 5S60ME-C8	4.2	C
1494	SOUNION IMO 9949467	61,184	2023	200 m	MAN - 6S50ME-B9	4.2	C
1493	RUEN IMO 9754903	45,010	2016	185 m	Doosan - 5G50ME-B9	4.2	C
1492	ALEXANDRIA IMO 9592616	82,852	2012	229 m	MAN - 7S50MC-C	4.2	C
1491	SOFIA IMO 1060746	41,521	2025	183 m	MAN-B&W 6S46ME-B8	4.2	C
1490	TOURLIANI IMO 9532202	74,940	2012	225 m	Mitsui - MITSUI MAN B&W 7S50MC-C	4.2	C
1489	THERMAIKOS IMO 9802255	63,939	2018	200 m	6S50ME-B9	4.2	C
1500	SUPER NOVA IMO 9425679	78,833	2010	225 m	MAN - 7S50MC-C	4.2	C

Page 30 of 69 — 3,436 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 2025 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.