Most Emission-Efficient General Cargos

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)

#448 of 2,380 general cargos

CO₂ intensity

7.7 g CO₂/dwt·nm

vs segment average (13.96)

-45% 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

2,429

vessels ranked

3.13

greenest (g CO₂/t·nm)

14.48

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
401	SEREF KURU IMO 8606111	13,047	1987	125 m	Mitsubishi - 6UEC45LA	7.0	A
402	CEDAR ARROW IMO 9232802	47,817	2001	190 m	Cegielski 5S60MC	7.0	A
403	GLORIEUSE IMO 9646429	38,338	2012	183 m	MAN - 6S46MC-C	7.0	A
404	PETRA IMO 9597630	33,688	2011	180 m	Mitsubishi - 6UEC52LA	7.0	A
405	GLENPARK IMO 9781621	37,838	2017	183 m	Hitachi - 6S46MC-B8	7.1	A
406	NALINEE NAREE IMO 9302906	31,699	2005	172 m	Akasaka - 6UEC52LA	7.1	A
407	UBC SALERNO IMO 9652519	32,702	2013	181 m	Mitsubishi - 6UEC45LSE	7.1	A
409	PRINCESS LAYLA IMO 9149677	29,501	1998	181 m	CHINA 5S 50MC	7.1	A
408	MANTA MERVE IMO 9597678	37,118	2012	178 m	Akasaka - 6UEC52LA	7.1	A
411	ALIATTIN D IMO 1074905	8,521	2025	110 m	Chinese Std. Type G8300ZC	7.1	A
410	CS FAITH IMO 9509700	33,210	2011	179 m	STX - 6S50MC-C7	7.1	A
412	PACIFIC HARMONY IMO 9701451	31,798	2015	166 m	MAN - 6S46ME-B8.2	7.2	A
413	TURAN C IMO 9558490	18,429	2010	148 m	Hyundai - 9H32/40P	7.2	A
414	USG ZURICH IMO 9458444	28,309	2013	166 m	STX - 6S40ME-B9	7.2	A
415	DEVBULK ALARA IMO 9449895	30,130	2011	179 m	MAKITA - 6S42MC	7.2	A
417	BAHRI RIYADH IMO 9695224	31,777	2014	166 m	MAN - 6S46ME-B8.2	7.2	A
416	REGGEBORG IMO 9592575	23,272	2014	170 m	Wärtsilä - 9L32C	7.2	A
418	SENATOR IMO 9117612	28,503	1996	181 m	DALIAN MARINE - 5S50MC	7.2	A
419	HAAGA IMO 9797632	25,600	2018	160 m	STX - 5G45ME-C9.5-GI	7.3	A
420	INUYAMA IMO 9392080	19,922	2009	150 m	Mitsubishi - 7UEC45LA	7.3	A
421	V MONOCEROS IMO 9478470	33,145	2011	177 m	Mitsubishi - 6UEC45LSE	7.3	A
422	AMALIA IMO 9973327	14,390	2024	150 m	Wartsila 6L32	7.3	A
423	ECO TIDE IMO 9576739	35,916	2011	178 m	Hyundai - 6S46MC-C8	7.3	A
424	LADY HATICE IMO 9413078	18,930	2009	140 m	MAN - 7 S 35 MC	7.4	A
425	NEREUS IMO 9400916	32,280	2010	177 m	Mitsubishi - 6UEC52LA	7.4	A
427	LADY RANIA IMO 9123099	29,538	1996	181 m	DALIAN MARINE - 5S50MC	7.4	A
426	NORD BRAVE IMO 9473690	33,745	2011	180 m	Mitsubishi - 6UEC45LSE	7.4	A
429	SUPERNOVA B IMO 9610212	36,261	2012	176 m	Mitsui - 5S50MC-C	7.4	A
428	MJ MAYA IMO 9261011	31,842	2002	177 m	Mitsubishi - 6UEC52LA	7.4	A
430	ABDULLAH M IMO 9295579	32,347	2004	177 m	Mitsubishi - 6UEC52LA	7.5	A
432	LADY MERAL IMO 9311311	32,131	2005	172 m	Mitsubishi - 6UEC52LA	7.5	A
431	MANTA HATICE IMO 9338565	31,931	2007	176 m	Akasaka - 6UEC52LA	7.5	A
433	MISJE IRIS IMO 1049728	5,309	2025	90 m	Wartsila 8L20	7.5	A
434	TIAN SHOU IMO 9704752	38,134	2016	190 m	Wärtsilä - 6RT-flex50	7.5	A
435	JESSICA B IMO 9262534	37,384	2003	200 m	MAN - 6S46MC-C	7.5	A
437	CHIPOL CHANGAN IMO 9509645	33,175	2010	179 m	STX - 6S50MC-C7	7.5	A
436	CHIPOLBROK MOON IMO 9272216	30,435	2004	200 m	Hyundai - 7RT-flex60C	7.5	A
438	XIA MEN ZE PING IMO 9304019	27,414	2006	179 m	Mitsubishi - 6UEC50LSII	7.5	A
439	ESSAYRA IMO 9735452	35,084	2016	180 m	STX - 5S50ME-B9	7.5	A
440	BOLTEN SYMI IMO 9427380	25,951	2009	157 m	MAKITA - 6S42MC	7.5	A
441	ATLANTIC ORCHARD IMO 9638159	34,317	2014	180 m	MAN - 5S50ME-B9	7.5	A
442	SIDER ONDA IMO 9700316	40,482	2015	183 m	MAN - 6S46ME-B8	7.6	A
443	IKEBANA IMO 9186209	45,038	1999	198 m	6S60MC	7.6	A
444	UBC SANTOS IMO 9376000	31,569	2008	172 m	Akasaka - 6UEC52LA	7.6	A
445	EMINE AKAY IMO 9580211	16,233	2011	137 m	Mitsubishi - 6UEC37LSII	7.6	A
446	AGIOS FANOURIOS IMO 9465368	33,261	2009	179 m	MAN - 6S42MC	7.6	A
447	DA DAN XIA IMO 9451290	28,451	2009	166 m	STX - 6S40ME-B	7.7	A
448	PRINCE FAROUK IMO 9125229	26,412	1997	169 m	Hudong Heavy Machinery - 5L50MC	7.7	A
449	POLESTAR IMO 9278167	31,818	2004	177 m	Akasaka - 6UEC52LA	7.7	A
450	NEPTUNE IMO 9011961	3,766	1991	100 m	MAN - 8L23/30	7.7	A

Page 9 of 48 — 2,380 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.