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)

#873 of 3,436 bulk carriers

CO₂ intensity

3.6 g CO₂/dwt·nm

vs segment average (4.71)

-23% 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
849	HUAN HANG 99 IMO 9646651	75,390	2018	225 m	Wärtsilä - 5RT-flex58T	3.6	B
855	CONCORDIA IMO 9313292	82,499	2011	225 m	Kawasaki - 6S60MC-C	3.6	B
854	PANSTELLAR IMO 9272943	76,602	2003	225 m	Mitsui - 6S60MC	3.6	B
853	STAR SUBARU IMO 9705160	61,571	2015	200 m	MAN - 6S50ME-B9	3.6	B
852	HYM ATHENS IMO 9443009	76,636	2008	225 m	Mitsui - 6S60MC	3.6	B
851	MIA LR IMO 9860879	81,678	2019	229 m	Mitsui - 6S60ME-C8	3.6	B
858	IDOMENEAS IMO 9448035	114,167	2010	250 m	Hyundai - 6S60MC-C	3.6	B
857	HENG AN YANG IMO 9316854	75,765	2006	225 m	Mitsui - 7 S 50 MC-C	3.6	B
859	CELERINA IMO 9790866	63,533	2018	200 m	MAN - 6S50MC-C8	3.6	B
860	NORD POLARIS IMO 9728198	81,791	2016	229 m	MAN - 6S60ME-C	3.6	B
863	RB ARIANA IMO 9743980	81,346	2017	229 m	STX - 5G60ME-C9	3.6	B
862	LEM VERBENA IMO 9845829	64,688	2020	200 m	MAN - 7G50ME-C9	3.6	B
861	SSI DOMINATOR IMO 9979230	63,752	2024	200 m	MAN-B&W 6S50ME-B9	3.6	B
866	CAPE ELEKTRA IMO 9527922	179,430	2011	292 m	MAN - 6S70MC-C8	3.6	B
865	LUCKY GLORY 2 IMO 9335989	76,942	2006	225 m	MAN - 6S60MC	3.6	B
867	ELBABE IMO 9725471	60,438	2015	200 m	MAN - 6S50ME-B9	3.6	B
864	MEDI VAIANO IMO 9760122	60,386	2016	200 m	Mitsui - 6S50ME-B9.3 (Tier II)	3.6	B
872	HONOR STAR IMO 9335991	76,936	2007	225 m	Kawasaki - 6S60MC-MKVI	3.6	B
869	HORIZON II IMO 9537563	114,688	2011	255 m	MAN - 6S60MC-C	3.6	B
868	GLADE IMO 9510694	84,091	2011	235 m	Hyundai - 6S60ME-C8	3.6	B
871	WOLVERINE IMO 9711327	61,292	2015	200 m	Hudong Heavy Machinery - 6S50ME-B9	3.6	B
870	MANDARIN PENGHU IMO 9693771	81,296	2015	229 m	MAN - 6S60ME-C	3.6	B
875	DESERT LION IMO 1018030	63,500	2025	200 m	MAN-B&W 6G50ME-C9	3.6	B
877	KYNOURIA IMO 9590125	81,354	2012	229 m	MAN - 6S60MC	3.6	B
874	URSULA MANX IMO 9900095	82,561	2021	229 m	MAN - 6S60ME-C10	3.6	B
881	PRAIRIE IMO 9860506	81,614	2019	229 m	Mitsui - 6S60ME-C8	3.6	B
880	FORTUNE KNIGHT IMO 1051410	82,076	2025	229 m	MAN-B&W 6G50ME-C9	3.6	B
873	QUEENA IMO 9736286	82,082	2016	229 m	MAN - 6S60ME-C8	3.6	B
876	NORSE SEQUEL IMO 1024443	63,552	2024	200 m	MITSUI E&S Co., Ltd. Marine Propulsion Systems Div. Tamano Factory	3.6	B
879	CAPE ALEXANDROS IMO 9489302	179,166	2010	292 m	HHI - 6S70MC-C7	3.6	B
878	MEDI PALMAROLA IMO 9802205	81,874	2018	229 m	Mitsui - 6S60ME-C8	3.6	B
882	PAN FLOWER IMO 9625841	82,687	2012	229 m	MAN - 6S60MC-C	3.6	B
885	MAGIC PERSEUS IMO 9582477	82,158	2013	229 m	MAN - 6S60MC-C	3.6	B
884	VITA MELODY IMO 9764075	81,671	2018	229 m	Mitsui - 6S60ME-C8	3.6	B
883	GREEN K-MAX 2 IMO 9838060	80,840	2020	229 m	MAN - 6S60ME-C8 (Tier II)	3.6	B
899	HONG FU IMO 9548550	76,402	2009	225 m	Hudong Heavy Machinery - 5S60MC	3.6	B
898	GUO YUAN 16 IMO 9579262	75,915	2012	225 m	Wärtsilä - 5RT-flex58T	3.6	B
897	COAL PEARL IMO 9611931	81,874	2013	229 m	MAN - 5S60MC-C	3.6	B
896	POWER GLOBE IMO 9479319	80,655	2011	225 m	Hitachi - 7S50MC-C	3.6	B
887	NORDIC OLYMPIC IMO 9727118	76,180	2015	225 m	MAN - 5S60MC-C	3.6	B
895	BELNIKE IMO 9875094	63,445	2020	200 m	MAN - 6S50ME-B9	3.6	B
894	ECO SIKOUSIS IMO 9317523	82,338	2008	225 m	Kawasaki - 5S60MC-C	3.6	B
893	AEOLIAN IMO 9580209	83,478	2012	229 m	Mitsui - 6S60MC-C	3.6	B
892	CAPE KASOS IMO 9627069	81,403	2012	229 m	Hyundai - 6S60MC-C C8.1	3.6	B
891	SDM TAICANG IMO 9949223	64,388	2023	210 m	MAN-B&W 6G50ME-C9	3.6	B
890	CHOLA UNITY IMO 9425667	83,685	2009	229 m	Mitsui - 6S60MC-C	3.6	B
889	YASA VENUS IMO 9848118	61,075	2019	200 m	MAN - 6S50ME-B9	3.6	B
888	COPENHAGEN COMMERCE IMO 9950296	64,190	2022	200 m	Mitsui Engineering & Shipbuilding C Ltd - Japan 6S50ME-C9-EGRBP	3.6	B
886	SSI IRRESISTIBLE IMO 9603154	81,708	2013	229 m	MAN - 5S60ME-C	3.6	B
900	DORIC TRIDENT IMO 9728150	57,859	2016	190 m	MAN - 6S50MC-C	3.7	B

Page 18 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.