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)

#422 of 3,531 bulk carriers

CO₂ intensity

3.2 g CO₂/dwt·nm

vs segment average (4.87)

-34% 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
404	EOLOS G IMO 9623738	81,817	2014	229 m	MAN - 6S60MC-C	3.2	A
403	SYLVANER IMO 9947275	82,412	2023	229 m	Mitsui E&S DU Co Ltd 6S60ME-C10-EGRBP	3.2	A
402	KRISTIAN OLDENDORFF IMO 9952505	82,143	2024	229 m	MAN - 6G50ME-C9	3.2	A
401	ROSTRUM SCEPTIC IMO 9955923	82,191	2024	229 m	MAN - 6S60ME-C10	3.2	A
409	PM HAYABUSA II IMO 9926477	63,883	2022	200 m	Mitsui Engineering & Shipbuilding Co. Ltd. 6S50ME-C9	3.2	A
408	STAR NICOLE IMO 9673783	81,120	2013	229 m	Diesel United - 6RT-flex58TD	3.2	A
410	MEDI GINEVRA IMO 9815939	87,091	2018	228 m	Mitsubishi - UEC60LSE-EcoA2	3.2	A
407	MONDIAL SUN IMO 9859296	82,035	2019	229 m	Mitsui - 6S60ME-C8.5	3.2	A
411	GENEVAN TRADER IMO 9846122	82,226	2020	229 m	MAN - 6S60MC-C8	3.2	A
406	NORD AQUARIUS IMO 9941398	82,375	2022	229 m	MAN - 6S60ME-C8	3.2	A
405	POPEYE IMO 9599078	98,730	2013	240 m	Mitsui - 7 S 50 MC-C	3.2	A
414	ORIENT PEONY IMO 9946764	82,195	2022	229 m	Hudong Heavy Machinery Co Ltd - China 6S60ME-C10-HPSCR	3.2	A
413	CYMONA ENERGY IMO 9638173	74,867	2012	225 m	MAN - 7S50MC-C	3.2	A
412	STARDUST IMO 9591959	78,072	2012	225 m	Mitsui - 6S60MC-CMKVII	3.2	A
418	TZOUMAZ IMO 9694921	89,772	2015	240 m	Wärtsilä - 6X62	3.2	A
421	TRITON CENTURY IMO 9805702	82,079	2018	229 m	MAN - 6S60ME-C8	3.2	A
417	SENTOSA CHALLENGER IMO 9866586	81,601	2020	229 m	MAN - 6S60ME-C8	3.2	A
419	TATRY IMO 9582960	82,138	2013	229 m	MAN - 6S60MC-C	3.2	A
416	GALAXY GLOBE IMO 9723629	81,167	2015	229 m	MAN - 6S60ME-C8	3.2	A
415	PACIFIC SOUTH IMO 9474967	176,000	2012	292 m	MAN - 6S70MC	3.2	A
420	GREAT BLOSSOM IMO 9986910	82,781	2024	229 m	6S50ME-C9-HPSCR	3.2	A
424	RICH AZURE IMO 9950648	64,452	2023	200 m	Mitsui E&S Machinery Co., Ltd. Tamano Machinery Factory	3.2	A
423	SASEBO GLORY IMO 9740823	85,020	2016	229 m	MAN - 6S60ME-C8	3.2	A
425	SCARLET ROSELLA IMO 9609627	82,235	2015	229 m	MAN - 6S60MC	3.2	A
422	JEWEL IMO 9567037	175,784	2006	292 m	Hitachi - HITACHI-MAN B&W 6S70MC6	3.2	A
433	CRIMSON EMPRESS IMO 9485021	82,250	2014	229 m	Mitsui - 6S60MC-C	3.2	A
432	JOSCO SHENGZHOU IMO 9934175	64,250	2022	200 m	MAN - 6S50ME-C9	3.2	A
431	BENTLEY IMO 9847891	80,856	2019	229 m	MAN - 6S60ME-C8	3.2	A
430	KAVOKAMILI IMO 9840661	85,141	2020	229 m	Mitsui - 6S60ME-C8	3.2	A
429	CARLTON TRADER IMO 9937567	82,237	2023	229 m	Yichang - 6S60ME-C8	3.2	A
428	MARAN VOYAGER IMO 9458688	179,718	2010	292 m	HHI - 6S70MC-C7	3.2	A
427	NORDIC NULUUJAAK IMO 9884966	95,758	2021	230 m	MAN - 6G60ME-C9	3.2	A
426	GLOBAL FANFARE IMO 9969027	63,734	2023	200 m	MAN-B&W 6S50ME-B9	3.2	A
435	LIEFDE IMO 9961934	82,725	2024	229 m	MAN-B&W 7G50ME-C9	3.2	A
437	ANDERMATT IMO 9738791	77,113	2015	225 m	Mitsui - 6S60MC	3.2	A
434	XING YANG HAI IMO 9949297	85,016	2022	227 m	CSIC Diesel Engine Co Ltd 6S60ME-C8	3.2	A
441	KEY JOURNEY IMO 9433640	80,591	2012	225 m	MAN - 7S50MC-C	3.2	A
440	NORDIC QINNGUA IMO 9884978	95,709	2021	230 m	MAN - 6G60ME-C9	3.2	A
438	DONNA ALEXANDRA IMO 9950595	82,183	2023	229 m	MAN-B&W 5S60ME-C	3.2	A
439	IONIC KALLIRHOE IMO 9796195	84,769	2020	229 m	MAN - 6S60ME-C	3.2	A
436	ATLANTIC SAMURAI IMO 9783980	81,725	2019	229 m	MAN - 7S50MC-C	3.2	A
450	SWANSEA IMO 9966570	90,023	2021	229 m	Hudong Heavy Machinery Co Ltd - China 5G60ME-C10	3.2	A
449	YANGZE 21 IMO 9602368	82,122	2012	229 m	Mitsui - 6S60MC-C	3.2	A
448	ERMIS IMO 9723643	81,175	2016	229 m	MAN - 6S60ME-C8	3.2	A
447	AM JYOTI IMO 9880233	82,603	2020	229 m	MAN - 6S60ME-C10	3.2	A
446	CL TAIZHOU IMO 9747314	81,119	2019	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.2	A
445	FORTE SAO MARCELO IMO 9939072	121,669	2021	259 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 6G60ME-C9-HPSCR	3.2	A
444	KYPROS LAND IMO 9667368	77,060	2014	225 m	MAN - 6S60MC	3.2	A
443	CARDIFF IMO 9966568	90,014	2024	229 m	UnKnown 5G60ME-C10	3.2	A
442	GLORY CUIABA IMO 9311189	75,886	2008	225 m	MAN - 6S60MC	3.2	A

Page 9 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.